*Formerly Environmental Scientist with Central Valley Water Board and currently a Staff Environmental Scientist with Department of Fish and Game San Joaquin River Basin: Main Stem and Drainage Basin Sites, October 2000 – September 2005 October 2009 2009 Technical Report This project was jointly funded by SWAMP and other partners, including Agricultural Subsurface Drainage Program, Total Maximum Daily Load Program, Watershed Management Initiative Program and the Grant Program
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*Formerly Environmental Scientist with Central Valley Water Board and currently a Staff Environmental Scientist with Department of Fish and Game
San Joaquin River Basin: Main Stem and Drainage Basin Sites, October 2000 – September 2005
O c t o b e r 2 0 0 9
2009 Technical Report
This project was jointly funded by SWAMP and other partners, including Agricultural Subsurface Drainage Program, Total Maximum Daily Load Program, Watershed Management Initiative Program and the Grant Program
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State of California
Arnold Schwarzenegger, Governor
California Environmental Protection Agency Linda S. Adams, Secretary for Environmental Protection
REGIONAL WATER QUALITY CONTROL BOARD
CENTRAL VALLEY REGION
Karl E. Longley, Chair Katherine Hart, Vice- Chair
Nicole M. Bell, Member Cheryl K. Maki, Member
Sandra O. Meraz, Member Soapy Mulholland, Member Dan Odenweller, Member
Pamela C. Creedon, Executive Officer
11020 Sun Center Drive #200 Rancho Cordova, CA 95670
Phone: (916) 464-3291
Email: [email protected] Web site: http://www.waterboards.ca.gov/centralvalley/
D I S C L A I M E R
This publication is a technical report by staff of the California Regional Water Quality Control Board, Central Valley Region.
No policy or regulation is either expressed or intended.
*Formerly Environmental Scientist with Central Valley Water Board and currently a Staff Environmental Scientist with Department of Fish and Game
REPORT PREPARED BY:
Victoria Bowles, Environmental Scientist Chad Dibble, Environmental Scientist*
Jeremy Starr, Project Assistant Lee Xiong, Student Intern
UNDER DIRECTION OF: JEANNE CHILCOTT,
Chief, San Joaquin River Watershed Unit
REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION
CALIFORNIA ENVIRONMENTAL PROTECTION AGENCY
ACKNOWLEDGEMENTS: This report has been many years in the making and would not be possible without support from the 32 students and staff that have contributed tremendously over the life of the project. Spe-cifically, Lee Xiong contributed much time and effort. Major portions of the field, lab and analyti-cal work were funded through coordination and cooperation with multiple Board Programs (e.g. Surface Water Ambient Monitoring Program, Agricultural Subsurface Drainage Program, Total Maximum Daily Load Program, Watershed Management Initiative Program and the Grant Pro-gram).
5.1 San Joaquin River Hydrology ................................................................................................ 16 5.2 San Joaquin River Sub-Basins .............................................................................................. 17
7.0 QUALITY ASSURANCE AND QUALITY CONTROL............................................................... 24 8.0 PRECIPITATION AND FLOW: WATER YEARS 2000-2005 .................................................. 25 9.0 BENEFICIAL USES AND APPLICABLE WATER QUALITY OBJECTIVES AND GOALS................................................................................................................................................................... 28
9.1 Applicable Beneficial Uses ..................................................................................................... 29 9.2 Applicable Water Quality Objectives and Goals ............................................................... 29
10.0 RESULTS ....................................................................................................................................... 32 10.1 Result Summaries................................................................................................................... 32
12.0 DISCUSSION................................................................................................................................. 43 12.1 Temporal and Spatial Trends............................................................................................... 43
List of Figures Figure 1: San Joaquin River Basin .......................................................................................................... 15 Figure 2: San Joaquin River Sub-Basins .................................................................................................. 18 Figure 4: Merced River Near Stevinson (MST) Mean Daily Flow .......................................................... 26
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Figure 5: San Joaquin River Near Newman (NEW) Mean Daily Flow ................................................... 27 Figure 6: San Joaquin River Near Vernalis (VNS) Mean Daily Flow ..................................................... 27 Figure 7: San Joaquin River Watershed Monthly Rainfall Data Water Year 2001-2005 ........................ 28 Figure 8: San Joaquin River Northeast Basin Temperature WY01-WY05.............................................. 44 Figure 9: San Joaquin River Main Stem Temperature WY01-WY05...................................................... 44 Figure 10: Basin Temperatures WY01-WY05 ......................................................................................... 45 Figure 11: San Joaquin River Main Stem Temperature WY01-WY05.................................................... 45 Figure 12: San Joaquin River Northeast Basin Specific Conductivity WY01-WY05 ............................. 48 Figure 13: San Joaquin River Main Stem Specific Conductivity WY01-WY05 ..................................... 48 Figure 14: San Joaquin River Grassland Basin Specific Conductivity WY01-WY05............................. 49 Figure 15: Basin Specific Conductivity WY01-WY05 ............................................................................ 49 Figure 15: Basin Specific Conductivity WY01-WY05 ............................................................................ 50 Figure 16: San Joaquin River Main Stem Specific Conductivity WY01-WY05 ..................................... 50 Figure 17: San Joaquin River Northeast Basin pH WY01-WY05 ........................................................... 52 Figure 18: San Joaquin River Main Stem Specific Conductivity WY01-WY05 ..................................... 52 Figure 19: Basin pH WY01-WY05 .......................................................................................................... 53 Figure 20: San Joaquin River Main Stem pH WY01-WY05 ................................................................... 53 Figure 21: San Joaquin River Main Stem Dissolved Oxygen WY01-WY05........................................... 55 Figure 22: San Joaquin River Northeast Basin Dissolved Oxygen WY01-WY05................................... 55 Figure 23: San Joaquin River Northeast Basin Turbidity WY02-WY04 ................................................. 57 Figure 24: San Joaquin River Main Stem Turbidity WY01-WY05 ......................................................... 57 Figure 25: Basin Turbidity WY02-WY04 ................................................................................................ 58 Figure 26: San Joaquin River Main Stem Turbidity WY02-WY04 ......................................................... 58 Figure 27: Turbidity Influences on the San Joaquin River from Lander to Airport Way/ Vernalis 3-25-03
and 3-27-03. .................................................................................................................................. 59 Figure 28: Turbidity Influences on the San Joaquin River from Lander to Airport Way/ Vernalis 12-18-
02 and 12-19-02. ........................................................................................................................... 60 Figure 29: San Joaquin River Main Stem Total Suspended Solids WY01-WY05................................... 62 Figure 30: San Joaquin River Westside Basin Total Suspended Solids Irrigation Season WY01 and
WY05............................................................................................................................................ 62 Figure 31: Basin Total Suspended Solids WY01-WY05 ......................................................................... 63 Figure 32: San Joaquin River Main Stem Total Suspended Solids WY01-WY05................................... 63 Figure 33: San Joaquin River Northeast Basin Total Suspended Solids WY01 ...................................... 64 Figure 34: San Joaquin River Eastside Basin Total Organic Carbon WY01-WY05 ............................... 66 Figure 35: San Joaquin River Northeast Basin Total Organic Carbon WY01 – WY05 .......................... 67 Figure 36: San Joaquin River Main Stem Total Organic Carbon WY01 – WY05................................... 67 Figure 37: Basin Total Organic Carbon WY01-WY05 ............................................................................ 68 Figure 38: San Joaquin River Main Stem Total Organic Carbon WY01-WY05 ..................................... 68 Figure 39: San Joaquin River Northeast Basin Total Coliform WY02-WY05 ........................................ 70 Figure 40: San Joaquin River Northeast Basin E. coli WY02-WY05...................................................... 71 Figure 41: San Joaquin River Main Stem E. coli WY01 – WY05 ........................................................... 71 Figure 42: Basin E. coli WY02-WY05..................................................................................................... 72 Figure 43: San Joaquin River Main Stem E. coli WY02-WY05.............................................................. 72 Figure 44: San Joaquin River Main Stem Nitrate WY01 – WY04........................................................... 74 Figure 45: San Joaquin River Northeast Basin Nitrate WY01 ................................................................. 75 Figure 46: San Joaquin River Westside Basin Nitrate WY01 .................................................................. 75 Figure 47: Basin Nitrate WY01-WY02 .................................................................................................... 76 Figure 48: San Joaquin River Main Stem Nitrate WY02-WY04 ............................................................. 76
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Figure 49: Basin BOD-5 Day WY02-WY03............................................................................................ 78 Figure 50: San Joaquin River Main Stem BOD-5 Day WY02-WY03..................................................... 78 Figure 51: Percentage of Total Organic Carbon samples greater than the Bay-Delta Authority Target
(3.0 mg/L) ................................................................................................................................... 87 Figure 52: Percentage of E. coli samples greater than the USEPA Guideline: Designated Beach Area
(235 MPN/100ml)......................................................................................................................... 91 List of Tables Table 1: SJR SWAMP Station Information and Sampling Frequencies* ................................................22 Table 2: Water Year Classifications........................................................................................................26 Table 3: Indicator and Beneficial Uses ...................................................................................................30 Table 4: Applicable Beneficial Uses .......................................................................................................31 Table 5a: Temperature, Specific Conductance (SC) and pH Results Summary ....................................33 Table 5b: Dissolved Oxygen (DO), Turbidity and Total Suspended Solids (TSS) Results Summary.....34 Table 5c: Total Organic Carbon (TOC), Total Coliform and E. coli Results Summary ...........................35 Table 5d: Nitrate, Nitrate-N, and Total Kjeldahl Nitrogen Results Summary ..........................................36 Table 5e: Ammonia as N, Phosphorus and Ortho-Phosphate as P Results Summary ..........................37 Table 5f: Potassium, Biochemical Oxygen Demand (5-day) and Biochemical Oxygen Demand (10-day)
Results Summary........................................................................................................................38 Table 5g: Chloride, Sulfate, and Calcium Results Summary ..................................................................39 Table 5h: Magnesium, Total Dissolved Solids (TDS), and Carbonate Results Summary ......................40 Table 5i: Bicarbonate, Total Alkalinity and Sodium Results Summary ...................................................41 Table 6: Toxicity Toxic Event Summary..................................................................................................42 Table 7: Selected Upstream Site Locations and Number of Turbidity Samples Greater than Selected
Upstream site ..............................................................................................................................84 Table 8: Summary of Potential Beneficial Use Concerns: San Joaquin River and Sub-Basin Sites
(2000 to 2005).............................................................................................................................92 APPENDIX A: SJR Main Stem Results (A1-A8) APPENDIX B: Northeast Basin Results (B1-B5) APPENDIX C: Eastside Basin Results (C1-C7) APPENDIX D: Southeast Basin Results (D1-D4) APPENDIX E: Grasslands Basin Results (E1-E4) APPENDIX F: Westside Basin Results (F1-F6) APPENDIX G: South Delta Basin Results (G1-G4) APPENDIX H: Parameters, Detection Levels, Holding Times and Analytical Recoveries APPENDIX I: SJR Main Stem Site information and Photographic Documentation (I1-I8) APPENDIX J: Northeast Basin Site information and Photographic Documentation (J1-J5) APPENDIX K: Eastside Basin Site information and Photographic Documentation (K1-K7) APPENDIX L: Southeast Basin Site information and Photographic Documentation (L1-L4) APPENDIX M: Grasslands Basin Site information and Photographic Documentation (M1-M4) APPENDIX N: Westside Basin Site information and Photographic Documentation (N1-N6) APPENDIX O: South Delta Basin Site information and Photographic Documentation (O1-O4) APPENDIX P: Exceedance/ elevated levels Summary
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APPENDIX Q: Water Quality Objectives/Goals and Related Beneficial Use Tables (Q1-Q3) APPENDIX R: Graphical summary of results collected
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1.0 EXECUTIVE SUMMARY The Central Valley Regional Water Quality Control Board’s (Central Valley Water Board) San Joaquin River Surface Water Ambient Monitoring Program (SWAMP) was implemented in October 2000 as part of the statewide effort to assess and monitor California’s surface water quality. The San Joaquin River (SJR) Basin covers 17,720 square miles (CVRWQCB, 1998) with fresh water flows originating from the Sierra Nevada along the east side and ephemeral streams providing seasonal flows along the west side and within the foothill regions. The hydrology of the basin has been highly modified and regulated since the advent of the Central Valley Project in the late 1940’s, and the valley floor is dominated by irrigated agriculture (approximately 2.0 million acres (DWR, 2001)). The SWAMP within the SJR Basin was designed with a 3-tiered monitoring framework: 1) long-term monitoring in the main stem of the river; 2) long-term monitoring in selected tributaries draining major sub-basins; and 3) more intensive monitoring on a 5-year rotation within the sub-basins themselves. This report focuses on the results for the first two tiers of the SWAMP effort, the main stem of the San Joaquin River and the major inflows from sub-watersheds, between October 2000 and September 2005. Results for the third tier, the Intensive Basin Monitoring Program (IBP), can be found on the fol-lowing website:
http://www.waterboards.ca.gov/centralvalley/water_issues/water_quality_studies/surface_water_ambient_monitoring/sjr_swamp.shtml The final sampling design for the first two tiers included eight SJR main stem sites and 30 drainage ba-sin sites, which were sampled monthly or weekly depending on the site, with a total of 39 separate con-stituents sampled over the course of the sampling period. At a minimum, each site was analyzed for standard field measurements (specific conductance, pH, temperature, turbidity, and dissolved oxygen) as well as total coliform and E. coli. Monthly photo documentation was taken at each site. Sampling expanded to include total organic carbon, total suspended sediments, trace elements (arsenic, copper, chromium, lead, nickel, zinc, and mercury), biochemical oxygen demand, mineral data (chloride, sul-fate, calcium, magnesium, total dissolved solids, carbonate, bicarbonate, total alkalinity and sodium) and water column toxicity when additional funding was available. The purpose of this report is to summarize the data gathered over the five year sampling period and attempt to address the SJR SWAMP’s main questions within the SJR valley, which include evaluating spatial and temporal trends and providing a preliminary assessment of potential beneficial use con-cerns. Constituents monitored displayed distinct spatial and temporal trends within the SJR watershed and some areas were identified for further review of potential impacts to beneficial uses. Spatial Trend Findings: Within the river, the majority of constituents, i.e. specific conductance, TSS, turbidity, and most miner-als and metals demonstrated increasing concentrations from Sack Dam (essentially the headwaters of the lower SJR) to Hills Ferry (a main stem site just upstream of the first freshwater flow from the Sierra Nevada). Many of the increases corresponded with inflows from the Grassland sub-basin. A pattern of decreasing concentrations from Hills Ferry to Vernalis (the boundary of the Sacramento-San Joaquin Delta) corresponded to dilution from the high volume fresh water flows from the east-side rivers that drain the Sierras. Most constituent concentrations decreased to roughly the same concentrations at Sack Dam after the 110-mile journey to Vernalis.
Comparing tributary sub-basin inflows, those from the western side of the SJR Basin had higher con-centrations of most constituents than those on the eastern side. The distribution may in part be due to minimal natural run off from the Coastal Range and replacement supply water from the Delta along the west side and more continuous fresh water flows and captured snowmelt as supply water for the east side. Temporal Trend Findings: Strong seasonal trends were found for temperature i.e., temperatures increase in the summer and de-crease during the winter. Dissolved oxygen (DO) had the opposite seasonal trend of temperature with a decrease in DO in the summer months and an increase in the winter months. Specific conductivity (SC), total organic carbon (TOC), turbidity, and total suspended solids (TSS) were influenced both by storm events, especially SC during the first storm runoff, and the irrigation season. Concentrations tended to spike during storm events, but remain at a lower but still elevated level during the irrigation season. Preliminary Assessment of Potential Beneficial Use Concerns: Potential impacts to key beneficial uses were evaluated by using selected indicators and comparing results against published water quality goals, targets and/or guidelines as follows:
• Drinking Water (SC, TOC, Nitrate, trace elements (arsenic, cadmium, copper, mercury, nickel, lead and zinc) and E. coli)
• Aquatic Life (pH, temperature, DO, turbidity, trace elements (cadmium, copper, nickel, arsenic, lead, zinc, and mercury), chloride and water column toxicity)
• Irrigation water supply (SC, and minerals (chloride, sodium and total dissolved solids)) • Recreation (E. coli)
In summary: Drinking Water/Municipal Supply: Total organic carbon was found to be elevated throughout the SJR Basin when compared to the 3.0 mg/L Bay Delta Authority’s guideline for water quality in the Sacra-mento-San Joaquin Delta (Delta). The entire SJR Basin drains into the southern portion of the Delta. Aquatic Life: Elevated temperatures during the spring and fall were a concern for fish passage along the SJR when compared to the Bay-Delta Authority target for the San Joaquin River at Vernalis of 20ºC from April 1–June 30 and from September 1–November 30. Higher levels of turbidity in the Westside basin were a concern but the current Basin Plan objective is based on background concentrations so it was difficult to evaluate for the existing ephemeral streams. Various levels of water column toxicity were reported sporadically on multiple occasions around the basin. A higher percentage of chronic tox-icity was reported as compared to acute toxicity. Samples for acute algae toxicity were collected less frequently but had a higher percentage (50 percent excluding Fremont Ford) of reduction and an in-crease in growth toxic events. For information on sediment toxicity around the basin see Sediment Toxicity Testing in the San Joaquin River Basin, October 2001 through September 2005 (http://www.waterboards.ca.gov/centralvalley/water_issues/water_quality_studies/surface_water_ambient_monitoring/swamp_water_quality_reports/index.shtml). Irrigation Water Supply: Specific conductance was found elevated above optimal irrigation water sup-ply concentrations throughout most of the SJR Basin when compared to the Water Quality Goal for Ag-riculture of 700 umhos/cm. In addition, individual samples were at times elevated above the Basin Plan objective for Vernalis of 700 umhos/cm April through August and 1000 umhos/cm September through March, although it should be noted that the objective is to be applied as a 30-day maximum running
average and was not intended to determine impairment using a single grab sample. The highest SC concentrations were measured within the Grasslands and Westside Basin. High salt concentrations can be attributed to a variety of components not limited to local geology/hydrology, importation and de-portation of water from and to different basins, waste products from urban, industrial, and agricultural practices—and is being evaluated separately under the Central Valley Salinity Alternatives for Long-Term Sustainability (CV-SALTS) project. Recreation: Occasional spikes of E. coli above the USEPA guideline of 235 MPN/100 ml (full contact recreation) were detected sporadically throughout the year, but the summer months were of particular concern due to the potential for recreational use increases for most of the waterways. Future Activities By the end of this study (2005), other Central Valley Water Board surface water monitoring efforts had expanded—notably the Irrigated Lands Regulatory Program (ILRP) and monitoring conducted under various grant efforts. The Central Valley Water Board SWAMP efforts became more focused on inter-nal and external monitoring coordination rather than continuing to maintain a separate monitoring strat-egy with shrinking resources. Some of these efforts are listed below.
• Development of the Central Valley Regional Board SWAMP website that documents monitoring activities supported by SWAMP and provides links to final reports and selected water quality data (http://www.waterboards.ca.gov/centralvalley/water_issues/water_quality_studies/surface_water_ambient_monitoring/index.shtml)
• Continued water quality monitoring support for the multi-agency Grassland Bypass Project (se-lenium control program)
• Leveraging funds with a separate USEPA project to continue development of a web-based monitoring directory designed to display active monitoring within the entire Central Valley (http://www.centralvalleymonitoring.org)
• Providing resources (staff and contract dollars) to facilitate development of a Regional Monitor-ing Program for the Sacramento-San Joaquin Delta
• Supporting Department of Water Resources staff to continue long-term trend monitoring at 41-sites in the northern Sacramento River Basin in exchange for the addition of selected constitu-ents of concern identified through Central Valley Regional Board efforts (TOC, nutrients, and toxicity) and realignment of 11-sites to correspond with sites utilized by the state-wide SWAMP sediment toxicity study
• Providing resources to insure ILRP water quality information is captured in the state-wide SWAMP master data base
• Developing a region-wide, long-term trend monitoring framework based on the 30-sites within the Central Valley that are part of the state-wide SWAMP contaminant trend monitoring effort.
• Providing assistance to other monitoring efforts to facilitate SWAMP comparability (e.g. review-ing quality assurance project plans)
Efforts related specifically to the elevated E. coli concentrations found within the SJR Basin as well as in other areas of the Central Valley as part of ILRP monitoring, are as follows:
• A survey of E. coli concentrations in local swimming holes before during and after a holiday weekend (coordinated with Central Valley watershed groups during both 2007 and 2008)
• A pilot bacteria source identification project with the University of California, Davis, in selected streams demonstrating elevated E. coli concentrations
• Continued, seasonal E. coli monitoring at 30-major integrator sites throughout the Central Val-ley.
Recommendations for future monitoring for each sub-basin and river site are summarized in Table 8 within the discussion and conclusion section of this report. Data collected as part of this study has been posted annually on our website since 2003 and was assessed in combination with other available data during the development of the Clean Water Act Sections 305(b) and 303(d) Integrated Report for the Central Valley Region (CVRWQCB, 2009 Draft).
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2.0 GLOSSARY/KEY TERMS Central Valley Water Board – Central Valley Regional Water Quality Control Board (CVRWQCB) IBP – Intensive Basin Program ILRP- Irrigated Lands Regulatory Program MCL- Maximum Contamination Level MUN - Municipal and Domestic Supply NPDES - National Pollutant Discharge Elimination System SC- Specific Conductance SJR – San Joaquin River SWAMP – Surface Water Ambient Monitoring Program State Water Board – State Water Resources Control Board TKN- Total Kjeldahl Nitrogen TOC- Total Organic Carbon TSS-Total Suspended Solids QA- Quality Assurance QC- Quality Control WY- Water Year
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3.0 INTRODUCTION The San Joaquin River Watershed Unit of the Central Valley Regional Water Quality Control Board (Central Valley Water Board) initiated a water quality monitoring program in October of 2000 as part of California Assembly Bill AB 982 (Chapter 495, Statutes of 1999). AB 982 focuses State Water Re-sources Control Board (State Water Board) efforts on developing a comprehensive ambient surface water quality monitoring program known as the Surface Water Ambient Monitoring Program (SWAMP). At the Central Valley Water Board, SWAMP is attempting to answer the following overarching question and related sub-questions.
What is/are the status and trends of ambient water quality in streams and rivers in the Sacramento River, San Joaquin River, and Tulare Lake Basins? --Are there spatial and temporal trends in water quality? --What is the location and extent of various levels of water quality? --Is there evidence of beneficial use impairment? (and over the long-term) --Is water quality getting better or worse? --Are Board programs (regulatory/non-regulatory) and management actions effective?
The SWAMP for the San Joaquin River (SJR) Basin (Figure 1) is built upon a monitoring framework developed as part of the agricultural subsurface drainage management program that focuses on sele-nium, salt and boron and has evolved since 1985 (discussed in more detail in section 4.0). The current SWAMP program contains 3 tiers. The first tier is a selection of sites along the main stem of the river, downstream of major inflows. The second tier is a series of sites representing inflows from specific sub-watersheds into the main stem of the river (drainage basin inflows component). These first two tiers consist of long term trend sites where monitoring is conducted weekly to monthly, depending on site and constituent. The final tier, the Intensive Basin Monitoring Program (IBP), is a more detailed, yearlong survey of the water quality within each of six sub-watersheds once every 5-years. Each of these sub-basins included water bodies with similar hydrologies, geologies, management issues, land use and land cover. The sixth basin, the southern Sacramento – San Joaquin Delta (South Delta), has not been included as part of the rotation due to the extensive monitoring and modeling already conducted by other agencies. A detailed discussion of the design of the 3-tier monitoring program is presented in section 6.2. This study focuses on the results for the first two tiers of the effort, the main stem San Joaquin River and inflows from sub-watersheds, between October 2000 and September 2005. Prior to initial water quality sampling, state, federal, and local agencies as well as known watershed groups were surveyed to identify current monitoring efforts and local concerns. These contacts included but were not limited to the Department of Water Resources, Department of Fish and Game, University of California, US Geological Survey, US Environmental Protection Agency, US Fish and Wildlife Service, Natural Re-sources Conservation Service, CalFed, San Luis Delta-Mendota Water Authority, Grassland Area Far-mers, local Resource Conservation Districts, and groups receiving water quality improvement bond grants.
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Concerns were varied, but most consistently included potential impacts to aquatic life and recreation, in particular concerns with temperature, sedimentation, selenium, off-site movement of pesticides, and pathogens, with additional concerns of irrigation supply (elevated salt) and drinking water (elevated to-tal organic carbon). The final sampling design incorporated the survey findings as funding permitted. At a minimum, each site was analyzed for standard field measurements (SC, pH, temperature, turbidity, and DO) as well as total coliform and E. coli. Monthly photo documentation was taken at each site. Sampling expanded to include total organic carbon, total suspended sediments, trace elements (arse-nic, copper, chromium, lead, nickel, zinc, selenium, molybdenum, and mercury), biochemical oxygen demand, mineral data (chloride, sulfate, calcium, magnesium, total dissolved solids, carbonate, bicar-bonate, total alkalinity and sodium) and water column toxicity when additional funding was available. Data gathered over the five year period provides information on the spatial and temporal trends in water quality and preliminary indications on potential beneficial use impairments. Key beneficial uses evalu-ated and the indicators utilized are listed below.
• Drinking Water (Salt/Specific Conductance, Total Organic Carbon, Trace Elements, Nu-
trients, E. coli) • Aquatic Life (Toxicity, Temperature, Dissolved Oxygen, Trace Elements, Ammonia, pH) • Recreation (E. coli) • Irrigation Supply (Salt/Specific Conductance)
Details for overall SWAMP monitoring objectives and indicators, as well as data for expanded sub-basin monitoring and the selenium control program, can be found on the Central Valley Regional Water Quality Control Board SWAMP website at: http://www.swrcb.ca.gov/centralvalley/water_issues/water_quality_studies/surface_water_ambient_monitoring/sjr_swamp.shtml Since 2003, all data collected as part of the San Joaquin River SWAMP effort that met quality assur-ance requirements, has been posted annually at the above website.
In 1985, an extensive water quality survey to evaluate the impacts of agricultural drainage on the lower San Joaquin River (SJR) was initiated. Although a number of issues of concern were identified, salt, boron and selenium impacts were the priority and a resulting multi-agency water quality monitoring pro-gram was created focusing its limited resources on evaluating these constituents. The area has since been the focus of the Region’s subsurface agricultural drainage program and considerable staff effort and resources have been directed to the effort of developing a comprehensive monitoring program, en-suring stakeholder involvement, and adopting Basin Plan Amendments and Waste Discharge Require-ments in order to develop a workable and comprehensive selenium control program. The compliance monitoring portion of this effort is the responsibility of the Data Collection and Report-ing Team (DCRT) whose members include representatives from the US EPA, US Geological Survey, US Bureau of Reclamation, US Fish and Wildlife Service, CA Department of Fish and Game, Central Valley Water Board, and Grassland Area Farmers. The DCRT monitoring program evaluates selenium concentrations, loading, and potential impacts in water, sediment, and biota. Water quality analyses for selenium salt and boron are conducted at nine sites within the Grassland Watershed and seven sites along the main stem of the SJR. Grab samples are collected weekly, with daily composites also col-lected at two key sites: the consolidated agricultural subsurface drainage discharge point on the San
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Luis Drain; and at Crows Landing on the SJR. (See Grassland Bypass Program on the Central Valley Regional Board SWAMP website for more detailed information.) The SJR SWAMP program was built upon this established framework. Basin priorities include maintaining the Grassland Bypass Program and expanding it to facilitate real-time monitoring activities. Other issues of concern include: aquatic toxicity from waterborne pesticides; aquatic life impacts from pesticides in bed sediment; habitat impacts from sedimentation; elevated nu-trient and BOD levels; pathogens; elevated temperatures; impacts from abandoned mines, timber har-vesting and grazing; and establishing baseline condition in rural Coastal Range streams in areas slated for future urban development. 5.0 STUDY AREA 5.1 San Joaquin River Hydrology The San Joaquin River (SJR) is the principal drainage artery of the San Joaquin Valley. The basin covers 17,720 square miles (CVRWQCB, 1998) and yields an average annual surface runoff of about 1.6 million acre-feet. The SJR basin drains the portion of the Central Valley south of the Sacramento-San Joaquin Delta and north of the Tulare Lake Basin. The lower Basin (below Millerton Reservoir) has had a highly managed hydrology since implementation of the Central Valley Project (CVP) in 1951. From the Sierra Nevada, the river channel drains west-ward to the Mendota Pool near the town of Mendota. As the river channel continues past the Mendota Pool it turns northward to narrow by the constrictions of the Merced River and Orestimba Creek alluvial fans. From there, the river channel makes its way north to the Sacramento-San Joaquin Delta and out to the Suisun Bay. Most of the flow released from Friant Dam is diverted into the Friant-Kern Canal, leaving the river chan-nel upstream of the Mendota Pool dry except during periods of wet weather flow and major snow melt, which was the case in early 2005. The majority of the water in the Mendota Pool has been transported from the Delta via the Delta Mendota Canal (DMC) for irrigation use and to replace water lost thru di-version of the upper SJR flows. The majority of that poorer quality (higher salinity) water is then dis-charged to irrigation supply channels along the west side of the river, while some flows are released to the main river channel and continue to Sack Dam. Remaining flows not diverted for agricultural use out of the main channel are then diverted at Sack Dam leaving flows in the lower San Joaquin River (below Sack Dam) mainly dependent on releases from upstream reservoirs, agricultural return flows, and groundwater seepage, although wetland releases and storm water run-off can have considerable im-pacts on the flows as well. During the irrigation season, the flows in the river between Sack Dam and Salt Slough consist largely of groundwater accretions. Salt Slough and Mud Slough (north) are the principal drainage arteries for the Grassland Sub-Basin and add significantly to the flows and waste loads in the SJR upstream of its confluence with the Merced River. Eastside discharges dominate flows in the SJR, as higher quality (lower salinity) water is released from reservoirs on the Merced, Tuolumne, and Stanislaus Rivers. Flows from the west side of the river basin are dominated by agricultural return flows since west side streams are ephemeral and their downstream channels are used to transport agricultural return flows to the main river channel (Steenson, et al., 1998)
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The principal streams in the basin are the San Joaquin River and its larger tributaries: the Cosumnes, Mokelumne, Calaveras, Stanislaus, Tuolumne, Merced, Chowchilla, and Fresno Rivers which all drain the east side of the basin. Major land use along the San Joaquin Valley floor is agricultural, occupying approximately 2.0 million acres, representing approximately 23% of the irrigated acreage in California (DWR, 2001). Urban growth along the I-5 corridor between Fresno and Stockton is rapidly converting historical agricultural lands to urban areas. As more and more people choose to commute from the Central Valley to the Bay Area, the rapid conversion of land is leading to increasing potential for storm water and urban impacts to local waterways. Timber activities, grazing, abandoned mines, rural com-munities, and recreation can impact upper watershed areas (Graham, 2009). 5.2 San Joaquin River Sub-Basins To help characterize the SJR watershed and develop a monitoring program targeting specific problems affecting water quality, the watershed was broken into six smaller sub-basins bound by the Sierra Ne-vada Mountains or the Coastal Range and comprised of similar land use and drainage patterns (Figure 2). All of the agricultural-dominated and constructed water bodies within each of the sub-basins have been identified (Chilcott, 1992), as well as the potential water quality concerns and major representa-tive discharges to the lower SJR. These sub-basins are similar to and based on, Total Maximum Daily Load (TMDL) efforts for salinity and boron in the lower SJR.
1. The Northeast Basin consists of the Cosumnes, Mokelumne, and Calaveras River Water-sheds, providing a combined drainage of 4,360 square miles.
2. The Eastside Basin contains the three largest SJR tributaries, in terms of flow: the Merced,
Stanislaus, and Tuolumne River Watersheds, along with the Farmington Drainage Basin and the lower Valley Floor Drainage Area, which drain directly to the SJR. The Eastside Basin is approximately 6,091 square miles.
3. The Southeast Basin is approximately 4,338 square miles and reaches from the headwaters of
the SJR north to the watershed divide between Bear Creek and the Merced River in Merced County.
4. The Westside Basin encompasses the watersheds of the creeks draining the eastern slope of
the Coast Range from the Orestimba watershed in the south to the Lone Tree Creek in the north. The Westside Basin is approximately 670 square miles.
5. The Grasslands Basin is a valley floor sub-basin of the SJR Basin, south of the Orestimba wa-
tershed, covering approximately 1,360 square miles. This basin lies on the west side of the SJR in portions of Merced, San Benito, and Madera Counties.
6. The South Delta Basin covers approximately 677 square miles and includes creeks on the
northwest side of the SJR, as well as the southern portion of the Sacramento-San Joaquin Delta waterways down toward the confluence of the SJR and the Sacramento River. Waters inside the Delta boundaries are tidally influenced and typically higher in salinity than other surface wa-ter throughout the SJR Basin.
18
Figure 2: San Joaquin River Sub-Basins 6.0 SAMPLING PROGRAM 6.1 Program Objectives In keeping with the overall Central Valley Regional Board SWAMP goals of being able to answer water quality questions related to spatial and temporal trends as well as whether or not there is evidence of beneficial use impairment, the following objectives were adopted for this effort:
1. Spatial and Temporal Trends a. Spatial includes the evaluation of the SJR moving progressively downstream as well as
comparisons between sub-basins b. Temporal includes seasonal variations and annual variations (by water year type)
2. Evaluation of Beneficial Use Protection a. Using selected indicators to determine whether there is evidence of impairment
3. Utilizing information gathered from the long-term trend sites within each sub-basin to help direct future monitoring program design within that sub-basin.
19
6.2 Design The SJR SWAMP program was designed as a trend-monitoring program that used a tiered approach. By using a tiered approach the SJR SWAMP program was able to adjust sampling constituents and monitoring frequencies to coincide with the year-to-year fluctuations in funding, as well as adjust for time delays associated with contracting to analytical laboratories. The use of available funds was then prioritized based on these tiers and the objectives of the program. This design resulted in less interrup-tion to monitoring activities that were considered higher priority for the program. Creating a tiered moni-toring design and selecting long-term sites and constituents also allows for the monitoring data to be evaluated over different water year types and facilitates assessment of implementation efforts going on throughout the valley. Monitoring sites for this program were selected from information gathered through existing monitoring efforts, historic data sets, the Inland Surface Waters Plan (Chilcott, J.,1992), the report Water Diversion and Discharge Points Along the San Joaquin River (James, E. W., et al.,1989), and reconnaissance done by Regional Board staff prior to initiation of any monitoring ef-forts. The first tier of the program is the Main Stem Program. In that program, eight sites were selected along the lower section of the SJR and monitored on a daily, weekly, monthly, or quarterly basis, depending on the constituent. Those sites were selected as long-term sites and are located downstream of major influences to the river. Those sites were the most important to the program since they represent the “bottom” of the system and could show potential changes to the river over time. Many of the sites se-lected were already being monitored as part of the Grassland Bypass Program (multi-agency selenium control effort), so coordination with those monitoring and data management efforts was incorporated. The second tier of the program is the Sub-Basin Program. The Sub-Basin Program moved the monitor-ing away from the main stem of the SJR and up into lower sections of the valley floor. In this program, 29 sites were selected as long-term trend sites representing the main inflows to the SJR from each of six sub-basins. The third tier, the Intensive Basin Program, was not directly part of the trend monitoring, but rather fo-cused on a 5-year rotational approach. This program contained approximately 20 sites per sub-basin, in addition to sites already part of the Sub-Basin Program, and focused solely on one sub-basin at a time. Sites selected within a sub-basin were monitored for one year, with the intent to rotate through the sub-basins once every 5 years.
To evaluate potential impact to beneficial uses, indicators were chosen for five broad beneficial uses: drinking water; recreation (swimming); aquatic life; irrigation; and waterfowl. The choice of indicators came from an evaluation of USEPA EPIC indicators (USEPA, 2003), water quality objectives and goals, and the fact that many of the indicators monitored as part of the SJR SWAMP efforts support high prior-ity region-wide program assessments as listed in the 2005 Triennial Review of the Water Quality Con-trol Plan for the Sacramento River and San Joaquin River Basins. Regional programs utilizing SJR SWAMP monitoring data include: Drinking Water Policy, Water Quality Objectives for Bacteria Indica-tors, Salinity and Boron TMDL, Central Valley Salinity Policy Development, Erosion/Sediment guide-lines, and SJR Dissolved Oxygen TMDL. In general, the first five years of the program were set-up to continually monitor sites on the SJR as part of the main stem program on a weekly basis, monthly for certain constituents, with the Sub-Basin sites being monitored on a monthly basis. The remaining funding was utilized in the Intensive Basin Pro-
20
gram. At the end of Water Year 2002 (i.e., 30 September 2002), a preliminary evaluation of the data collected as part of the first two years of the program was done and showed that the monthly monitor-ing frequency for nutrients, trace metals, minerals and TSS was not sufficient to develop useful trend information due to insufficient funding. Those analyses were then dropped from the program for a ma-jority of the sites (mainly the Sub-Basin sites). Table 1 lists the monitoring sites and sampling frequen-cies associated with the constituents monitored for each site. As funding permitted, samples were collected for: total suspended solids (TSS); total organic carbon (TOC); total coliform; E. coli; nutrients, including nitrate, nitrate-N, total kjeldahl nitrogen (TKN), ammo-nia, phosphorus, ortho-phosphate, and potassium; biochemical oxygen demand (5 and 10 day); chlo-ride; sulfate; calcium; magnesium; total dissolved solids (TDS); carbonate; bicarbonate; total alkalinity; sodium; water column toxicity [Pimephales promelas (P. promelas), Ceriodaphnia dubia (C. dubia), Se-lenastrum capriconutum (algae)]; hardness; arsenic; cadmium; chromium; copper; lead; nickel; zinc; and mercury. Figure 3 displays the distribution of the sites within the SJR Basin. For more information on the moni-toring sites location including specific sampling location, summary of land-use, available water quality information, and monthly photograph documentation over the course of WY 2004-2005 for each site see Appendix I-O or refer to the central valley water quality web site: http://www.swrcb.ca.gov/centralvalley/water_issues/water_quality_studies/surface_water_ambient_monitoring/sjr_swamp.shtml The results presented in this report focus on the first and second tier monitoring of the SJR SWAMP effort. Reports on the first three Intensive Basin Programs (Northeast Basin, Eastside Basin, and Westside Basin), the third tier of the program, as well as all water quality data can be found at: http://www.waterboards.ca.gov/centralvalley/water_issues/water_quality_studies/
Main Stem 1 SJR @ Sack Dam 541MAD007 R 36.98361 -120.50027 M M M M M M M M M M M M2 SJR @ Lander Avenue 541MER522 R 37.29527 -120.85027 W W W W M+ M+ W W M M M M M M3 SJR @ Fremont Ford 541MER538 R 37.30944 -120.92916 W W W W M+ M+ W W M M M M4 SJR @ Hills Ferry 541STC512 R 37.3425 -120.97722 M M M M M M M M M M M M M M5 SJR @ Crows Landing 535STC504 R 37.43194 -121.01166 W W W W M+ M+ W W M M M M M M6 SJR @ Patterson 541STC507 R 37.49777 -121.08166 W W W W M+ M+ W W M M M M M M7 SJR @ Maze 541STC510 R 37.64194 -121.22777 W W W W M+ M+ W W M M M M8 SJR @ Airport Way 541SJC501 R 37.67555 -121.26416 W W W W M+ M+ W W M M M M M M
Drainage Basin
9 Cosumnes River at Twin Cities Road 531SAC001 ER 38.29083 -121.37583 M M M M M M M M M M M M M10 Mokelumne River at New Hope Road 544SAC002 ER 38.23611 -121.41889 M M M M M M M M M M M M M11 Pixley Slough at Davis Road 531SJC507 Eph/SL 38.05611 -121.33305 M M M M M M M M M M M M M12 Bear Creek at Thornton Road (J8) 544SJC508 Eph/SL 38.04305 -121.34861 M M M M M M M M M M M M13 Bear Creek at Lower Sacramento Road 531SJC515 Eph/SL 38.04277 -121.32139 M M M M M M M M M M M M M
14 Lone Tree Creek at Austin Road 531SJC503 Eph 37.85555 -121.185 M M M M M M M M M M M M M15 French Camp Slough at Airport Way 531SJC504 SL 37.88166 -121.24944 M M M M M M M M M M M M M16 Turner Slough at Fourth Ave. 535MER576 Eph/SL 37.32055 -120.88916 M M M M M M M M M M M M M17 Merced River @ River Road 535MER546 ER 37.34972 -120.95777 M M M M M M M M M M M M M18 TID 5 Harding Drain @ Carpenter Road 535STC501 Eph 37.46444 -121.03028 M M M M M M M M M M M M M19 Tuolumne River at Shiloh Fishing Access 535STC513 ER 37.60305 -121.13166 M M M M M M M M M M M M M20 Stanislaus River at Caswell Park 535STC514 ER 37.7025 -121.17722 M M M M M M M M M M M M M
21 Lone Willow Slough at Road No. 9 545MAD006 Eph 36.86694 -120.38194 M M M M M M M M M M M M22 Santa Rita Slough at HWY 152 541MER015 Eph 37.0475 -120.59361 M M M M M M M M M M M M23 Deep Slough at Green House Road 535MER577 Eph 37.22972 -120.72833 M M M M M M M M M M M M24 Bear Creek near Bert Crane Road 535MER007 Eph 37.25555 -120.65194 M M M M M M M M M M M M M
Northeast Basin
Eastside Basin
Southeast Basin
Table 1: SJR SWAMP Station Information and Sampling Frequencies*
23
Cor
resp
ondi
ng
Map
Num
ber
Station Name Station CodeWater Body Type
Target Lat Target Long
SC
(spe
cific
co
nduc
tanc
e)
pH
DO
(dis
solv
ed
oxyg
en)
Tem
p
E.c
oli
Tot
al C
olifo
rm
TO
C (t
otal
or
gani
c ca
rbon
)
TSS
(tot
al
susp
ende
d so
lids)
Nut
rient
s +
Trac
e M
etal
s (T
otal
&
Dis
solv
ed)
Min
eral
s **
Chr
onic
To
xici
ty
Acu
te T
oxic
ity
BO
D
(bio
chem
ical
ox
ygen
de
man
d)
25 Salt Slough @ Lander Avenue 541MER531 Eph 37.24861 -120.85111 M M M M M M M M M M M M M M26 Mud Slough Upstream of SLD Terminus 541MER536 Eph 37.25416 -120.90694 M M M M M M M M M M M M27 San Luis Drain @ Terminus 541MER535 SD 37.25944 -120.90388 M M M M M M M M M M M M28 Mud Slough @ San Luis Drain 541MER542 Eph 37.26388 -120.90611 M M M M M M M M M M M M
29 Orestimba Creek @ River Road 541STC019 Eph 37.41388 -121.01416 M M M M M M M M M M M M M30 Salado Creek at HWY 33 541STC515 Eph 37.48138 -121.13555 M M M M M M M M M M M M M31 Del Puerto Creek at Vineyard Avenue 541STC516 Eph 37.52138 -121.14861 M M M M M M M M M M M M M32 Ingram Creek at River Road 541STC040 Eph 37.60027 -121.22416 M M M M M M M M M M M M M33 Hospital Creek at River Road 541STC042 Eph 37.61055 -121.22861 M M M M M M M M M M M M M34 Grayson Road Drain at Grayson 541STC030 Eph 37.56194 -121.17416 M M M M M M M M M M M M M
35 New Jerusalem Tile Drain 544SJC001 SD 37.70888 -121.29861 M M M M M M M M M M M M M36 Tom Paine Slough at Paradise Road 544SJC505 SL 37.77416 -121.38222 M M M M M M M M M M M M37 Old River at Tracy Blvd. 544SJC506 SL 37.80472 -121.44944 M M M M M M M M M M M M38 Mt. House Creek @ Mt. House Parkway 544SJC509 Eph 37.78555 -121.53472 M M M M M M M M M M M M M
CDEC Gauging Station Sites39 Merced River Near Stevinson (Flow) MST NA 37.37100 -120.93100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA40 SJR near Newman (Flow) NEW NA 37.35000 -120.97700 NA NA NA NA NA NA NA NA NA NA NA NA NA NA41 SJR Near Vernalis (Flow) VNS NA 37.66700 -121.26700 NA NA NA NA NA NA NA NA NA NA NA NA NA NA42 Stockton Fire Station 4 (Precipitation) STK NA 38.00100 -121.31700 NA NA NA NA NA NA NA NA NA NA NA NA NA NA43 Tracy Carbona (Precipitation) TCR NA 37.70000 -121.43300 NA NA NA NA NA NA NA NA NA NA NA NA NA NA44 Merced (Precipitation) MFS NA 37.28300 -120.51700 NA NA NA NA NA NA NA NA NA NA NA NA NA NA45 Los Banos (Precipitation) LSB NA 37.05000 -120.86700 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
* Sample frequencies shown indicate frequency of samples taken as funding allowed+ Nutrient analysis includes nitrate, nitrate-N, total kjeldahl nitrogen (TKN), ammonia, phosphorus, ortho-phosphate, and potassium** Mineral analysis includes chloride, sulfate, calcium, magnesium, total dissolved solids, carbonate, bicarbonate, total alkalinity and sodiumW = weeklyM = MonthlyM+ = 2X/MonthR = Main Stem RiverER = Eastside River Draining SierraEph = Ephemeral Stream usually dominated by AG return flows during irrigation seasonSL = Backwater or Slough that can experience tidal influencesSD = Subsurface Drainage (shallow groundwater)NA = Not Applicable
Westside Basin
Delta Basin
Grasslands Basin
Table 1: SJR SWAMP Station Information and Sample Frequencies* continued...
24
6.3 Sampling Procedures All samples were measured and collected in compliance with the Agricultural Subsurface Drainage Program Procedures Manual (Chilcott, et al., 1996) and the Quality Assurance Program Plan for the State of California’s Surface Water Ambient Monitoring Program “SWAMP” (SWRCB, 2002). Field measurements for temperature, specific conductance, pH, dissolved oxygen and turbidity were taken using one of three meters; Myron 6P Ultra Meter II (temp, SC, and pH only, Oct 2000- July 2001) Yellow Springs Instrument (YSI) 600 XLM Sonde (no turbidity), or a YSI 6600 Sonde (turbidity). All YSI readings were read from YSI 650 data logger. Clean sample containers were rinsed three times with ambient water prior to grab sample collection, except for sample containers that were pre-acidified (ammonia and TOC) or contained other neutraliz-ing agents (sodium thiosulfate for total coliform and E. coli). Water for pre-acidified samples was col-lected in a stainless steel cup or a sample bottle that was being collected for a separate constituent at the same site and poured into the sample container. All samples were kept at 4 degrees Celsius by storing them on ice after collection and during transport and in a refrigerator while in-house. Appendix H lists the laboratories, detection levels, holding times and acceptable recoveries for the pa-rameters monitored. 7.0 QUALITY ASSURANCE AND QUALITY CONTROL All quality assurance (QA) and quality control (QC) log-books for the constituents analyzed by outside laboratories were maintained by the Regional Board contract manager or their designee. QA/QC re-cords for bacteria analysis and equipment maintenance are recorded in the respective QA/QC log-books, found in the Central Valley Water Board laboratory where samples were analyzed. At a minimum, field sampling equipment was calibrated as per manufacturer’s instructions at the start and end of each sampling event and/or after 10-15 sites. If it was found that calibrations were off, the instruments were recalibrated and if needed, measurements re-taken. Field and handling contamination was evaluated by submitting blind travel blanks on a monthly basis, and on each run for bacteria monitoring. Travel blank samples traveled through the sampling run, and were processed with the sample set. For most constituents, the travel blank consisted of a sample of de-ionized (DI) water that was produced at the Central Valley Water Board laboratory. For bacteria monitoring, the travel blanks were prepared by the Department of Plant Sciences, University of Califor-nia Davis (UC Davis). After thorough discussion with UC Davis, the travel blanks were initially prepara-tions of boiled deionized water and NaCl, which was then switched to Type II water in July 2002, and ultimately, phosphate buffered saline was added to the Type II water travel blanks at the end of WY 2005. For toxicity monitoring, Sierra Foothill Labs, Inc provided de-mineralized water (DMW) to be used for travel blanks. All data sets used for this report had travel blank results that fell below the ana-lytical detection limits for the elements of concern. Consistency in sample collection and analysis was evaluated by collecting replicate samples for all samples needing laboratory analysis. The Central Valley Water Board San Joaquin River Watershed Unit uses a SWAMP compliant standard quality assurance procedure that includes 10% replicate sam-ples.
25
Precision and accuracy were evaluated using blind split and spiked samples. Blind split samples were collected at a 10% frequency for each sampling event by collecting the sample in a container double the normal sample volume and splitting that sample into two equal amounts for submittal to the analyz-ing laboratory. On a monthly basis, and when appropriate, half of the blind split samples were spiked with known concentrations of constituents to be analyzed. Comparing the spiked split to the back-ground split provided information on analytical accuracy. Comparing data from non-spiked splits pro-vided information on analytical precision. Potential contamination from the reagent grade nitric acid used to control pH was evaluated by submit-ting a deionized water matrix preserved with 1 mL of acid per 500 mL of sample, to the contract labora-tories at monthly intervals to be analyzed for the trace elements of concern. All reported recoveries for these acid check samples were below the analytical detection limit. Only data from sample sets whose blind QA/QC met specifications outlined in Appendix H have been included in this report. These specifications are consistent with the QAPP for this program. 8.0 PRECIPITATION AND FLOW: WATER YEARS 2000-2005 The San Joaquin River is the principal drainage artery of the San Joaquin Valley, draining the area south of the Sacramento-San Joaquin Delta and north of the Tulare Lake Basin, approximately 13,500 square miles (Graham, 2009; Steensen, et al., 1998). Precipitation varies throughout the SJR Water-shed and occurs as both rainfall and snow. Mean annual precipitation on the valley floor ranges from less than 5 inches in the south to 15 inches in the north. Average annual precipitation in the Sierra Ne-vada, mostly in the form of snow, ranges from about 20 inches in the lower foothills to more than 80 inches at some higher altitude sites. Precipitation in the Coast Ranges varies from less than 10 inches to more than 20 inches. As in the valley, precipitation in the Sierra Nevada and Coast Ranges in-creases from south to north (Dubrovsky, et al., 1998).
The San Joaquin River Index, as described in the Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary is used to classify the water year type in the river basin based on runoff. The 60-20-20 Index includes five classifications: wet, above normal, be-low normal, dry, and critical, based on millions of acre-feet of calculated unimpaired flow. (SWRCB, 1995)
A Water Year begins 1 October and ends 30 September of the following year. Because of the timing of this study, October 2000 through September 2005, five full water years are represented. Table 2 lists the Water Year Classifications based on rainfall and snow totals in the SJR Watershed during the pro-ject.
26
Table 2: Water Year Classifications
(Data source DWR, 2007) Figures 4, 5, and 6 display the mean daily flow for the Merced River and the San Joaquin River near Newman and Vernalis during this project. These sites represent the main flows coming in and out of the San Joaquin River watershed: the Merced River represents flow from the Sierras, Newman represents the upstream flow of the SJR and Vernalis represents the downstream flow from the SJR entering the Sacramento-San Joaquin Delta. Figure 4: Merced River Near Stevinson (MST) Mean Daily Flow
(Data Source, DWR-California Data Exchange Center (CDEC))
Water Year 2001 – Dry Water Year 2002 – Dry Water Year 2003 – Below normal Water Year 2004 – Dry Water Year 2005 – Wet
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27
Figure 5: San Joaquin River Near Newman (NEW) Mean Daily Flow
(DATA SOURCE, DWR-CALIFORNIA DATA EXCHANGE CENTER (CDEC))
Figure 6: San Joaquin River Near Vernalis (VNS) Mean Daily Flow
(DATA SOURCE, DWR-CALIFORNIA DATA EXCHANGE CENTER (CDEC))
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28
Figure 7 displays the San Joaquin River Watershed Monthly Rainfall Data during the project. These sites represent precipitation throughout the basin and were chosen for their extensive reliable record. Figure 7: San Joaquin River Watershed Monthly Rainfall Data Water Year 2001-2005
(Data Source, DWR-California Data Exchange Center (CDEC)) 9.0 BENEFICIAL USES AND APPLICABLE WATER QUALITY OBJECTIVES AND GOALS One component of the Central Valley Water Boards SWAMP efforts is to evaluate ambient water quality to determine whether there is any indication that beneficial uses are being impacted. Information gath-ered during this study allowed analysis of a broad spectrum of water bodies at key integrator sites in order to determine existing quality at the site itself and allow some inference of the water quality within identified sub-basins. Potential beneficial uses applicable to each site monitored were identified using the designated listing from the Sacramento/San Joaquin Water Quality Control Plan (Basin Plan) (CVRWQCB, 1998). To evaluate potential impact, indicators were chosen for five broad beneficial uses: drinking water (salt, TOC, trace elements, nutrients, bacteria); aquatic life (pH, temperature, dis-solved oxygen, turbidity, and water column toxicity); irrigation water supply (salt); recreation (bacteria); and waterfowl (selenium). Selenium was not assessed in this report due to the in-depth analysis of the same data through the Grassland Bypass Project. Not all of the indicators could be monitored at each site, due to funding limitations, but at least one indicator for each beneficial use evaluated was included at each site for the study.
0
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M onth
Inch
es
Stockton Fire Station 4 (STK) Tracy Carbona (TCR) Merced (MFS) Los Banos (LSB)
29
The following two sections highlight: 1) the beneficial uses that apply to each of the water bodies sam-pled; and 2) the objectives and goals that were utilized when evaluating results to determine whether there was any indication that water quality was not supporting a specific beneficial use.
9.1 Applicable Beneficial Uses In the SJR Basin, all natural water bodies have potential municipal and industrial supply designated through the statewide Sources of Drinking Water Policy (State Water Resources Control Board Resolu-tion No. 88-63). Other specific beneficial uses have been designated to individual water bodies as well as the San Joaquin River/Sacramento-San Joaquin Delta—to which the entire SJR Basin drains. The beneficial uses of any specifically identified water body generally apply to its tributary streams. The applicable beneficial uses for each sampling site have been summarized in Table 4, under the general headings of Drinking Water, Recreation Use, Irrigation Supply and Aquatic Life. Table 4 indi-cates whether the use has been specifically designated or is being applied as a tributary. Appendix Q3 provides more detail on the subcategories of use that have been specifically designated in the Sacra-mento-San Joaquin Basin Plan. 9.2 Applicable Water Quality Objectives and Goals Water quality information collected during this study was evaluated using water quality objectives adopted in the Sacramento River and San Joaquin River Basin Plan (CVRWQCB, 1998), a compilation of water quality goals identified by state and federal agencies (Marshack, 2003) and targets developed by the Bay-Delta Authority (CFBDP, 2000). The Basin Plan objectives are enforceable criteria that are linked to protecting designated beneficial uses such as domestic, municipal, agricultural and industrial supply, recreation, and preservation and enhancement of fish, wildlife and other aquatic resources. These objectives are both numeric and narrative and may be specific to certain reaches of various wa-ter bodies or apply to entire basins. The water quality goals are scientifically defensible numeric criteria developed by diverse agencies to protect specific uses; primarily aquatic life, drinking water, and irrigation supply. In many cases, the goals are national guidelines. These goals may be used to determine compliance with some of the nar-rative Basin Plan objectives (e.g. toxicity). Both the objectives and the goals apply to the indicators used to evaluate beneficial use protection. A summary of the general groups of indicators that can be utilized to evaluate a beneficial use and the most limiting use (e.g. if the objective/goal is met for that use than it would be met for the remaining uses) is listed in Table 3. Appendix Q1 lists the applicable Basin Plan objectives for this study. For turbidity, pH, temperature, and total suspended sediment, the listed objectives refer to changes impacting “normal” and “natural” conditions. For this study, natural conditions have been assumed to be conditions at the furthest up-stream sampling location or upstream of a specific discharge. Appendix Q1 also includes targets iden-tified by the Bay-Delta Authority (a joint State and Federal agency) to protect fish passage (temperatures not to exceed 20-degrees Celsius) and drinking water (total organic carbon to remain below 3.0-mg/L). Appendix Q2 shows the applicable goals sorted by generalized beneficial uses.
30
SC X X XpH X X X
Temp. XDO X
Turbidity X X XMinerals X X
X X X fNutrient Scan X X X
TSS X X X XTDS X XTOC X X XBOD X
Bacteria X X X
P. promelas 96 hr X X X XC. dubia 48 hr X X X X
S. capricornutum Acute X X X XP. promelas Chronic X X X X
C. dubia Chronic X X X X
Toxicity
Trace Elements (Total & Diss.)
Drinking Water
Aquatic Life
Water Column AnalysesINDICATOR(S)
SJR BENEFICIAL USE(S)Irrig. Water Supply Rec. Use
f=Major recreational use concern is in fish consumptionMinerals= B, Ca, Cl, CO3, HCO3, K, Mg, Na, SO4, Alkalinity, TDS, Total Hardness, pH, ConductivityTrace Elements (Total & Diss.)= As, Cd, Cr, Cu, Hg, Ni, Pb, Zn, Nutrient Scan= K, P, PO4, NH3-N, NO3, TKN
= Most limiting beneficial use(s). For reference of actual numerical valuesof water quality objectives see "A Compilation of Water Quality Goals " (Marshack, 2000)
Table 3: Indicators and Beneficial Uses
31
Table 4: Applicable Beneficial Uses
Drinking Water Irrigation
REC-2
Con
tact
Can
oein
g an
d R
aftin
g
Oth
er N
onco
ntac
t
War
m
Col
d
War
m
Col
d
War
m
Col
d
SJR @Sack Dam 541MAD007 P E E E E E E E E P D
SJR @ Lander 541MER522 P E E E E E E E E P D
SJR @ Fremont Ford 541MER538 P E E E E E E E E P D
SJR @ Hills Ferry 541STC512 P E E E E E E E E P D
SJR @ Crows 535STC504 P E E E E E E E E D
SJR @ Patterson 541STC507 P E E E E E E E E D
SJR @ Maze 541STC510 P E E E E E E E E D
SJR @ Airport Way/Vernalis 541SJC501 P E E E E E E E E D
North East Basin
Cosumnes River @ Twin Cities Rd. 531SAC001 E E E E E E E E E E E D
Mokelumne River @ New Hope Rd. 544SAC002 E E E E E E E E E E D
Pixley Slough @Davis Rd. * 544SJC507 E E E E E E E E E T
Bear Creek @Thornton Rd (J8) * 544SJC508 E E E E E E E E E T
Bear Creek @Lower Sacramento Rd. * 531SJC515 E E E E E E E E E T
Eastside Basin
Lone Tree Creek * 531SJC503 E E E E E E E E E T
French Camp Slough @ Airport * 531SJC504 E E E E E E E E E T
Merced River Hatfield Park (River Road) 541MER546 E E E E E E E E E E D
Turner Slough @ 4th Avenue * 535MER576 P E E E E E E E E P T
TID 5 (Harding Drain)* 535STC501 P E E E E E E E E T
Tuolumne River @ Shiloh 535STC513 P E E E E E E E E E D
Stanislaus River @Caswell 535STC514 P E E E E E E E E E D
Southeast Basin
Lone Willow Slough * 545MAD006 P E E E E E E E E P T
Bear Creek @ Bert Crane Rd. * 535MER007 P E E E E E E E E P T
Deep Slough Green House Rd. * 535MER577 P E E E E E E E E P T
Grassland Basin
Discharge from San Luis Drain (SLD)* 541MER535 L E E E E T
Mud Slough (upstream of SLD) 541MER536 L E E E E D
Mud Slough (Downstream of SLD) 541MER542 L E E E E D
Salt Slough @Lander/Hwy 165 541MER531 E E E E E D
West Side Basin
Orestimba Creek @ River Rd. * 541STC019 P E E E E E E E E T
Solado Creek @ Hwy 33 * 541STC515 P E E E E E E E E T
Del Puerto Creek @Vineyard * 541STC516 P E E E E E E E E T
Grayson Drain * 541STC030 P E E E E E E E E T
Ingram Creek @River Rd. * 541STC040 P E E E E E E E E T
Hospital Creek @River Rd. * 541STC042 P E E E E E E E E T
Delta Basin
New Jerusalem Drain* 544SJC501 E E E E E E E E T
Tom Payne Slough @Paradise Rd. 544SJC505 E E E E E E E E E D
Old River @Tracy Blvd 544SJC506 E E E E E E E E E D
Mt. House Creek @ Mt. House Parkway S544SJC509 E E E E E E E E E T
* = Beneficial uses not specifically designated, therefore current listing based on downstream beneficial useE = Exisiting beneficial usesP = Potential beneficial usesL=Existing Limited Beneficial Use
Spawning
SITE SPECIFIC MONITORING BY PROGRAM AND SUB-AREA BASIN Site ID
DRAINAGE BASIN INFLOWS TO SJR
Des
igna
ted
(D) o
r Trib
utar
y (T
)
REC-1
RecreationFreshwater
Habitat Migration
Aquatic Life
Mun
icip
al a
nd
Dom
estic
Sup
ply
(MU
N)
MAIN STEM SAN JOAQUIN RIVER
32
10.0 RESULTS 10.1 Result Summaries All data collected is presented in Appendices A-G. Summary tables of the information were created using the appendices and indicate the number of samples taken, minimum and maximum values ob-served, mean, geo mean, median, quartile 1 and quartile 3 for all of the sites sampled. These summary tables also include sub-basin summaries. These sub-basin summaries do not include the San Luis Drain and New Jerusalem Drain—two sites unique to the basin since they represent shallow groundwa-ter/sub-surface drainage and not typical surface flows. Table 5a provides a summary of the field tem-perature, specific conductance (SC) and pH. Table 5b lists summary results for dissolved oxygen (DO), turbidity and total suspended solids (TSS). Table 5c lists total organic carbon (TOC), total coli-form and E. coli. Table 5d summarizes nitrate, nitrate-N, and total kjeldahl nitrogen. Table 5e lists ammonia as N, phosphorus and ortho-phosphate as P. Table 5f summarizes potassium, biochemical oxygen demand (5-day and 10-day). Table 5g summarizes chloride, sulfate, and calcium. Table 5h provides summaries of magnesium, total dissolved solids (TDS), and carbonate. Table 5i lists bicar-bonate, total alkalinity and sodium. Sample collection for metals and toxicity were limited, so results have been provided in the appendices and are evaluated in the discussion section of the report. A toxic event summary table (Table 6) of the toxicity data collected was created by defining a toxic event as statistically significant and at least a 20% difference from the control. Table 6 shows toxic events for acute fathead minnows, acute Ceriodaphnia dubia, acute algae, chronic fathead minnow and chronic Ceriodaphnia dubia.
33
Table 5a: Temperature, Specific Conductance (SC) and pH Results Summary
South Delta Basin Summary^ 136 6.8 26.6 17.2 16.3 17.6 13.0 21.6 136 150 3180 1770 1063 1450 1070 1438 134 6.5 8.8 7.6 7.6 7.6 7.4 7.8*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
TempºC Field SC (umhos) pH
34
Table 5b: Dissolved Oxygen (DO), Turbidity and Total Suspended Solids (TSS) Results Summary
South Delta Basin Summary^ 108 2.2 16.2 8.3 7.8 8.3 6.6 10.0 43 3.9 274 47.6 30.5 32.1 17.0 49.7 29 14 110 33 29 27 22 36*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
Southeast Basin Deep Slough Green House Rd 535MER577 31 0.5 14 7.3 6.0 6.9 4.4 10 25 866 >2420 NA 2323 >2420 >2420 >2420 25 9 >2420 NA 238 199 96 980Santa Rita Slough at Highway 152 541MER015 5 0.5 24 9.8 5.5 8.4 4.3 12 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Bear Creek Bert Crane Rd 535MER007 31 0.5 21 5.9 4.4 4.8 3.3 7.0 30 1553 >2420 NA 2384 >2420 >2420 >2420 30 44 >2420 NA 502 448 265 1276
New Jerusalem Drain 544SJC001 28 0.1 21 3.9 1.6 2.0 0.5 2.7 23 52 >2420 NA 1052 1986 548 >2420 20 1 27 NA 6 6 4 15Tom Payne Slough @ Paradise Rd. 544SJC505 30 0.5 31 6.2 4.5 4.9 4.2 6.2 26 313 >2420 NA 2017 >2420 >2420 >2420 26 7 816 NA 61 47 29 104Old River @Tracy Blvd 544SJC506 31 1.4 17 5.0 4.3 4.1 3.3 5.7 30 770 >2420 NA 2169 >2420 >2420 >2420 30 25 345 NA 74 61 50 104Mountain House Creek 544SJC509 14 2.6 14 7.2 6.1 6.0 4.3 9.7 2 >2420 >2420 NA >2420 >2420 >2420 >2420 2 1046 1203 NA 1122 1125 1085 1164
South Delta Basin Summary^ 75 0.5 31 5.9 4.7 4.6 3.7 6.5 58 313 >2420 NA 2108 >2420 >2420 >2420 58 7 1203 NA 74 60 39 116*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
For values reported as > (greater than), 2420 was used
TOC (mg/L) Total Coliform E. coli
36
Table 5d: Nitrate, Nitrate-N, and Total Kjeldahl Nitrogen Results Summary
Main Stem Site Code Count Min Max MeanGeo
Mean Median Q1 Q3 Count Min Max MeanGeo
Mean Median Q1 Q3 Count Min Max MeanGeo
Mean Median Q1 Q3SJR @Sack Dam 541MAD007 14 2.4 9.7 4.8 4.3 3.9 3.1 5.7 NA NA NA NA NA NA NA NA 23 0.1 1.3 0.8 0.7 1.0 0.7 1.0SJR @ Lander 541MER522 22 1.0 16.0 3.8 2.3 1.0 1.0 6.8 NA NA NA NA NA NA NA NA 21 0.5 3.9 1.5 1.3 1.0 1.0 1.8SJR @ Fremont Ford 541MER538 37 1.0 16.0 5.8 4.7 5.2 2.9 7.4 24 0.1 3.7 1.1 0.8 0.8 0.6 1.6 71 0.5 3.0 1.1 1.0 1.0 1.0 1.2SJR @ Hills Ferry 541STC512 11 3.4 19.0 9.3 8.0 9.6 5.0 13.0 NA NA NA NA NA NA NA NA 21 0.2 2.6 1.1 1.0 1.0 1.0 1.3SJR @ Crows 535STC504 39 4.2 23.0 12.1 11.3 11.0 8.8 15.0 27 0.2 4.5 2.1 1.8 2.1 1.4 2.9 73 0.3 3.0 1.0 0.9 1.0 0.8 1.1SJR @ Patterson 541STC507 20 5.0 18.0 12.7 12.1 13.5 9.1 15.3 NA NA NA NA NA NA NA NA 19 0.5 2.1 1.0 1.0 1.0 1.0 1.0SJR @ Maze 541STC510 19 5.8 15.0 10.5 10.1 11.0 9.1 12.0 NA NA NA NA NA NA NA NA 18 0.5 1.2 1.0 1.0 1.0 1.0 1.0SJR @ Airport Way/Vernalis 541SJC501 23 3.8 12.0 8.4 8.1 8.4 7.6 10.0 NA NA NA NA NA NA NA NA 30 0.2 1.9 0.9 0.9 1.0 0.8 1.0
Southeast Basin Deep Slough Green House Rd 535MER577 11 1.0 23.0 4.8 2.4 1.0 1.0 4.8 NA NA NA NA NA NA NA NA 18 1.0 6.2 1.8 1.5 1.3 1.0 2.1Santa Rita Slough at Highway 152 541MER015 4 1.0 10.0 4.7 2.9 4.0 1.0 7.7 NA NA NA NA NA NA NA NA 3 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Bear Creek Bert Crane Rd 535MER007 11 1.0 31.0 5.5 3.1 3.0 1.8 3.9 NA NA NA NA NA NA NA NA 19 0.2 9.8 1.3 0.9 1.0 0.7 1.0
Southeast Basin Summary 26 1.0 31.0 5.1 2.8 3.0 1.0 5.1 NA NA NA NA NA NA NA NA 40 0.2 9.8 1.5 1.2 1.0 1.0 1.3
Eastside BasinTurner Slough at 4th Avenue 535MER576 9 1.0 9.9 4.9 3.8 4.2 3.9 5.7 NA NA NA NA NA NA NA NA 16 0.8 32.0 3.5 1.5 1.0 1.0 1.4Merced River Hatfield Park(River Rd) 541MER546 10 1.0 15.0 7.6 6.0 7.3 5.3 10.3 NA NA NA NA NA NA NA NA 9 1.0 2.4 1.2 1.1 1.0 1.0 1.0Lone Tree Creek @ Austin Rd 531SJC503 14 1.0 10.0 4.8 3.8 3.8 3.0 7.1 NA NA NA NA NA NA NA NA 23 0.7 17.0 3.6 2.3 1.5 1.0 4.8French Camp Slough @ Airport 531SJC504 11 2.6 29.0 10.1 7.3 7.3 3.6 12.1 NA NA NA NA NA NA NA NA 19 0.6 4.1 1.4 1.2 1.0 1.0 1.1Harding Drain @ SJR (TID5) 535STC501 14 9.9 44.0 23.1 21.2 21.0 15.0 26.5 NA NA NA NA NA NA NA NA 23 0.1 16.0 5.4 3.4 4.0 2.3 8.4 Tuolumne River @ Shiloh 535STC513 14 2.5 9.3 6.5 6.2 6.7 6.0 7.5 NA NA NA NA NA NA NA NA 14 0.3 2.2 1.0 1.0 1.0 1.0 1.0 Stanislaus River @Caswell 535STC514 11 1.0 3.7 2.1 1.7 1.0 1.0 3.3 NA NA NA NA NA NA NA NA 11 0.1 1.0 0.9 0.8 1.0 1.0 1.0
Eastside Basin Summary 83 1.0 44.0 8.9 5.7 6.3 3.4 10.0 NA NA NA NA NA NA NA NA 115 0.1 32.0 2.8 1.6 1.0 1.0 2.8
Westside BasinOrestimba Creek @ River Rd. 541STC019 10 4.3 20.0 11.1 9.9 10.1 7.4 14.8 NA NA NA NA NA NA NA NA 11 0.5 1.0 1.0 0.9 1.0 1.0 1.0Solado Creek @ Hwy 33 541STC515 12 2.9 23.0 11.1 9.5 9.5 6.9 15.5 NA NA NA NA NA NA NA NA 20 0.6 2.4 1.1 1.1 1.0 1.0 1.0Del Puerto Creek @Vineyard 541STC516 11 1.0 73.0 19.5 11.0 8.5 6.2 28.5 NA NA NA NA NA NA NA NA 16 0.7 16.0 2.5 1.6 1.0 1.0 2.3Grayson Drain 541STC030 11 1.0 30.0 11.1 8.4 8.7 6.2 13.5 NA NA NA NA NA NA NA NA 19 0.2 13.0 1.9 1.1 1.0 0.9 1.5Ingram Creek @River Rd. 541STC040 12 2.3 74.0 34.7 24.6 22.5 16.3 62.0 NA NA NA NA NA NA NA NA 21 0.1 5.8 2.0 1.5 1.8 1.0 2.4Hospital Creek @River Rd. 541STC042 8 7.1 25.0 12.8 11.9 11.0 9.5 13.5 NA NA NA NA NA NA NA NA 12 1.0 4.2 1.7 1.5 1.0 1.0 2.2
Westside Basin Summary 64 1.0 74.0 17.2 11.8 11.0 7.3 20.0 NA NA NA NA NA NA NA NA 99 0.1 16.0 1.7 1.3 1.0 1.0 2.0
Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 9 1.0 6.1 2.4 1.8 1.0 1.0 3.6 NA NA NA NA NA NA NA NA 9 1.0 1.0 1.0 1.0 1.0 1.0 1.0Mokelumne River @New Hope Rd. 544SAC002 12 0.5 1.0 1.0 0.9 1.0 1.0 1.0 NA NA NA NA NA NA NA NA 12 1.0 1.0 1.0 1.0 1.0 1.0 1.0Pixley Slough @ Davis Rd 531SJC507 9 1.0 2.1 1.2 1.2 1.0 1.0 1.0 NA NA NA NA NA NA NA NA 15 0.5 1.4 1.0 0.9 1.0 1.0 1.0Bear Creek @ Thorton Road (J8) 544SJC508 12 1.0 5.4 2.3 1.9 2.3 1.0 2.7 NA NA NA NA NA NA NA NA 16 0.5 2.5 1.1 1.1 1.0 1.0 1.0Bear Creek @Lower Sacramento Rd. 531SJC515 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4 0.8 3.7 1.7 1.4 1.2 0.8 2.1
Northeast Basin Summary 42 0.5 6.1 1.7 1.4 1.0 1.0 2.3 NA NA NA NA NA NA NA NA 56 0.5 3.7 1.1 1.0 1.0 1.0 1.0
South Delta Basin
New Jerusalem Drain 544SJC001 10 49.0 77.0 59.1 58.6 58.0 53.0 60.8 NA NA NA NA NA NA NA NA 19 0.8 4.5 1.3 1.1 1.0 1.0 1.0Tom Payne Slough @ Paradise Rd. 544SJC505 12 1.0 8.0 3.8 2.8 3.4 1.0 5.7 NA NA NA NA NA NA NA NA 20 0.6 2.1 1.1 1.1 1.0 1.0 1.3Old River @Tracy Blvd 544SJC506 12 4.8 10.0 7.6 7.4 7.9 6.8 8.4 NA NA NA NA NA NA NA NA 20 0.6 2.1 1.1 1.1 1.0 1.0 1.1Mountain House Creek 544SJC509 10 1.0 7.6 4.5 3.9 5.1 3.1 5.5 NA NA NA NA NA NA NA NA 13 0.6 3.4 1.5 1.3 1.0 1.0 2.1
South Delta Basin Summary^ 34 1.0 10.0 5.3 4.4 5.4 3.1 7.6 NA NA NA NA NA NA NA NA 53 0.6 3.4 1.2 1.1 1.0 1.0 1.2*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
Nitrate (mg/L) Nitrate-N (mg/L) TKN (mg/L)
37
Table 5e: Ammonia as N, Phosphorus and Ortho-Phosphate as P Results Summary
Main Stem Site Code Count Min Max MeanGeo
Mean Median Q1 Q3 Count Min Max MeanGeo
Mean Median Q1 Q3 Count Min Max MeanGeo
Mean Median Q1 Q3SJR @Sack Dam 541MAD007 NA NA NA NA NA NA NA NA 22 0.03 0.2 0.1 0.1 0.1 0.1 0.2 30 0.02 0.5 0.3 0.2 0.5 0.1 0.5SJR @ Lander 541MER522 NA NA NA NA NA NA NA NA 22 0.2 0.5 0.3 0.3 0.3 0.2 0.4 24 0.02 0.5 0.5 0.4 0.5 0.5 0.5SJR @ Fremont Ford 541MER538 17 0.1 0.3 0.1 0.1 0.1 0.1 0.1 67 0.1 0.7 0.3 0.3 0.3 0.2 0.4 78 0.02 0.5 0.3 0.3 0.3 0.1 0.5SJR @ Hills Ferry 541STC512 NA NA NA NA NA NA NA NA 19 0.1 0.4 0.3 0.2 0.3 0.2 0.3 23 0.02 0.5 0.3 0.2 0.5 0.1 0.5SJR @ Crows 535STC504 17 0.1 0.5 0.1 0.1 0.1 0.1 0.1 69 0.1 0.4 0.2 0.2 0.2 0.2 0.3 79 0.02 0.5 0.3 0.2 0.2 0.1 0.5SJR @ Patterson 541STC507 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 19 0.2 0.5 0.3 0.3 0.3 0.2 0.3 20 0.1 0.5 0.5 0.4 0.5 0.5 0.5SJR @ Maze 541STC510 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 19 0.1 0.4 0.2 0.2 0.2 0.2 0.3 19 0.1 0.5 0.5 0.4 0.5 0.5 0.5SJR @ Airport Way/Vernalis 541SJC501 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 31 0.03 0.4 0.2 0.2 0.2 0.2 0.2 33 0.02 0.5 0.4 0.3 0.5 0.2 0.5
Southeast Basin Deep Slough Green House Rd 535MER577 NA NA NA NA NA NA NA NA 18 0.2 1.3 0.5 0.5 0.4 0.3 0.6 24 0.02 1.7 0.5 0.4 0.5 0.2 0.5Santa Rita Slough at Highway 152 541MER015 NA NA NA NA NA NA NA NA 4 0.2 1.0 0.5 0.4 0.4 0.3 0.6 5 0.5 1.5 0.7 0.6 0.5 0.5 0.5 Bear Creek Bert Crane Rd 535MER007 NA NA NA NA NA NA NA NA 19 0.03 0.3 0.2 0.1 0.1 0.1 0.2 25 0.02 2.0 0.3 0.2 0.2 0.1 0.5
Southeast Basin Summary NA NA NA NA NA NA NA NA 41 0.03 1.3 0.4 0.3 0.3 0.2 0.4 54 0.02 2.0 0.5 0.3 0.5 0.1 0.5
Eastside BasinTurner Slough at 4th Avenue 535MER576 NA NA NA NA NA NA NA NA 18 0.1 12.0 1.2 0.3 0.2 0.2 0.3 22 0.02 11.0 1.3 0.3 0.3 0.1 0.5Merced River Hatfield Park(River Rd) 541MER546 NA NA NA NA NA NA NA NA 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.5 0.5 0.5 0.5 0.5 0.5 0.5Lone Tree Creek @ Austin Rd 531SJC503 NA NA NA NA NA NA NA NA 24 0.2 4.8 1.3 0.9 0.9 0.5 1.3 26 0.02 2.8 1.0 0.7 0.7 0.5 1.3French Camp Slough @ Airport 531SJC504 NA NA NA NA NA NA NA NA 21 0.1 1.5 0.5 0.3 0.3 0.2 0.5 23 0.02 1.5 0.5 0.3 0.5 0.3 0.5Harding Drain @ SJR (TID5) 535STC501 NA NA NA NA NA NA NA NA 24 0.2 7.5 1.8 1.3 1.6 0.8 2.0 27 0.02 4.4 1.6 1.0 1.4 0.5 2.3 Tuolumne River @ Shiloh 535STC513 NA NA NA NA NA NA NA NA 14 0.1 0.4 0.1 0.1 0.1 0.1 0.2 15 0.1 0.5 0.5 0.4 0.5 0.5 0.5 Stanislaus River @Caswell 535STC514 NA NA NA NA NA NA NA NA 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.02 0.5 0.5 0.4 0.5 0.5 0.5
Eastside Basin Summary NA NA NA NA NA NA NA NA 120 0.05 12.0 0.9 0.3 0.3 0.1 1.0 136 0.02 11.0 0.9 0.5 0.5 0.5 1.1
Westside BasinOrestimba Creek @ River Rd. 541STC019 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 10 0.1 0.4 0.2 0.2 0.2 0.1 0.4 10 0.1 0.5 0.5 0.4 0.5 0.5 0.5Solado Creek @ Hwy 33 541STC515 NA NA NA NA NA NA NA NA 22 0.03 0.4 0.2 0.2 0.2 0.1 0.2 24 0.1 0.5 0.3 0.2 0.4 0.1 0.5Del Puerto Creek @Vineyard 541STC516 NA NA NA NA NA NA NA NA 17 0.1 0.6 0.2 0.2 0.2 0.1 0.3 19 0.1 3.5 0.5 0.4 0.5 0.3 0.5Grayson Drain 541STC030 NA NA NA NA NA NA NA NA 20 0.03 2.9 0.6 0.3 0.3 0.2 0.5 21 0.02 2.5 0.5 0.3 0.5 0.2 0.5Ingram Creek @River Rd. 541STC040 NA NA NA NA NA NA NA NA 23 0.03 1.4 0.3 0.2 0.2 0.1 0.5 25 0.02 0.5 0.3 0.2 0.4 0.1 0.5Hospital Creek @River Rd. 541STC042 NA NA NA NA NA NA NA NA 12 0.1 4.0 0.7 0.5 0.5 0.4 0.6 12 0.1 0.5 0.4 0.4 0.5 0.5 0.5
Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 NA NA NA NA NA NA NA NA 9 0.1 0.4 0.3 0.3 0.3 0.3 0.4 10 0.02 1.0 0.5 0.4 0.5 0.5 0.5Mokelumne River @New Hope Rd. 544SAC002 NA NA NA NA NA NA NA NA 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.02 0.5 0.4 0.3 0.5 0.5 0.5Pixley Slough @ Davis Rd 531SJC507 NA NA NA NA NA NA NA NA 16 0.1 0.4 0.2 0.1 0.1 0.1 0.2 16 0.02 0.5 0.3 0.2 0.5 0.1 0.5Bear Creek @ Thorton Road (J8) 544SJC508 NA NA NA NA NA NA NA NA 17 0.1 1.0 0.3 0.2 0.2 0.1 0.3 19 0.10 1.1 0.4 0.3 0.5 0.2 0.5Bear Creek @Lower Sacramento Rd. 531SJC515 NA NA NA NA NA NA NA NA 5 0.1 1.4 0.6 0.3 0.4 0.1 0.8 3 0.02 0.3 0.1 0.1 0.1 0.1 0.2
Northeast Basin Summary NA NA NA NA NA NA NA NA 57 0.1 1.4 0.2 0.2 0.2 0.1 0.3 61 0.02 1.1 0.4 0.3 0.5 0.1 0.5
South Delta Basin
New Jerusalem Drain 544SJC001 NA NA NA NA NA NA NA NA 19 0.03 0.1 0.1 0.1 0.1 0.04 0.1 21 0.02 0.5 0.3 0.1 0.5 0.1 0.5Tom Payne Slough @ Paradise Rd. 544SJC505 NA NA NA NA NA NA NA NA 22 0.1 0.4 0.2 0.2 0.2 0.2 0.3 24 0.02 0.5 0.3 0.2 0.3 0.1 0.5Old River @Tracy Blvd 544SJC506 NA NA NA NA NA NA NA NA 22 0.2 0.7 0.3 0.2 0.2 0.2 0.3 24 0.1 0.5 0.3 0.3 0.2 0.2 0.5Mountain House Creek 544SJC509 NA NA NA NA NA NA NA NA 13 0.1 0.4 0.2 0.2 0.2 0.2 0.3 14 0.02 0.5 0.4 0.3 0.5 0.2 0.5
South Delta Basin Summary^ NA NA NA NA NA NA NA NA 57 0.1 0.7 0.2 0.2 0.2 0.2 0.3 62 0.02 0.5 0.3 0.2 0.4 0.1 0.5*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
South Delta Basin Summary^ 65 2.0 22 7.2 6.3 5.9 4.5 7.6 59 0.8 8.6 3.6 3.0 2.9 1.9 5.1 59 1.5 16 6.3 5.3 4.9 3.4 8.1*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
BOD 5-Day (mg/L) BOD 10-Day (mg/L)Potassium (mg/L)
39
Table 5g: Chloride, Sulfate, and Calcium Results Summary
South Delta Basin Summary^ 65 8 500 280 250 140 100 250 65 23 490 280 240 130 87 250 65 19 160 62 52 48 38 74*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
Chloride (mg/L) Sulfate (mg/L) Calcium (mg/L)
40
Table 5h: Magnesium, Total Dissolved Solids (TDS), and Carbonate Results Summary
South Delta Basin Summary^ 65 8 89 36 30 26 20 44 39 240 2000 1400 1200 610 465 1900 55 0.5 16 0.8 0.5 0.5 0.5 0.5*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
Magnesium (mg/L) TDS (mg/L) Carbonate (mg/L)
41
Table 5i: Bicarbonate, Total Alkalinity and Sodium Results Summary
South Delta Basin Summary^ 55 82.0 480 280 260 170 130 345 52 69.0 400 240 220 260 160 293 55 10.0 490 240 210 120 90 310*Discharge from SLD not included into calculations^New Jerusalem Drain not included into calculationsNA = Data not applicableNOTE: For values reported as < (less than), half the detection limit was used
Total Alkalinity (mg/L)Bicarbonate (mg/L) Sodium (mg/L)
42
Table 6: Toxicity Toxic Event Summary
43
12.0 DISCUSSION The main stem river and sub-basin tiers of the SJR SWAMP effort have two main objectives: evaluate overall water quality, both temporally and spatially, and assess whether there is any indication that beneficial uses are not being protected. A third adaptive objective is to utilize the information gathered at the long-term sites for the sub-basins to help design future monitoring efforts within that sub-basin. This section discusses the results in the context of those objectives. This five-year study covered: three dry water years, one below normal water year, and one wet year. The final year of this study was one of the wettest years on record. The overall water year effects as well as seasonal effects between storm, snowmelt, irrigation and dry seasons are depicted in a series of paired line graphs for each constituent specifically evaluated: one graph for the SJR sites and one for the Northeast Basin sites (representing temporal trends within sub-basins). If trends within one of the other sub-basins differed greatly from the Northeast Basin, a separate figure was included within the discussion. Similarly, spatial trends were depicted using paired box and whisker figures: one figure showing sum-mary information for SJR sites moving downstream; and the second figure showing summary informa-tion for each sub-basin, also moving downstream, as well as summary information for the San Luis Drain and New Jerusalem Drain which represent shallow groundwater within the Grassland and Delta sub-basins, respectively. Drainage basin sites were selected as being representative of the major flows to the SJR from each basin. While graphical summary information for each sub-basin was not included within this section of the report, the figures are available in Appendix R. Wherever possible, water quality objectives, guidelines and/or targets have been noted on the figures to help put the results in context. Evaluation of the constituents and their potential impacts on the beneficial uses is evaluated in section 12.2. The data collected was utilized in combination with other available data sets during the development of the draft 2009 Clean Water Act Section 305(b) and 303(d) Integrated Report for the Central Valley Region that identifies specific beneficial use impair-ments for water body segments throughout the Central Valley. A summary of potential concerns for each sub-basin that may aid future monitoring design is included in the summary/conclusion of this re-port. All the sites are located relatively close together in the lower reaches of the individual sub-basin prior to discharge into the SJR, therefore have similar localized land use influences, the most notable being dominance by agricultural return flows during the irrigation season. Source water does vary widely, from Sierra snow melt to imports from the Sacramento-San Joaquin Delta and may also include storm water, wetland drainage, operational spill, and ground water discharge. 12.1 Temporal and Spatial Trends 12.1.1 TEMPERATURE Temperature was measured in degrees Celsius and ranged from 1.9 – 32.8 throughout the Basin dur-ing the 5-year study. A very consistent seasonal oscillation was seen at all the sites and tracked those within the Northeast Basin. The lowest temperatures were seen in January around 5ºC with a gradual climb to its peak in July around 25ºC (Figures 8 and 9). The majority of the South Delta Basin sites showed the same seasonal oscillation as the Northeast Ba-sin except New Jerusalem Drain. The New Jerusalem Tile Drain had relatively higher temperatures and shorter amplitude oscillations then the rest of the South Delta Basin sites. Through dry and wet years the temperature showed no significant differences.
44
No significant spatial differences were observed either moving upstream to downstream along the main stem of the SJR, nor between sub-basins. Figures 10 and 11 show the relatively consistent ranges in temperature within the basins and SJR, respectively. Figure 8: San Joaquin River Northeast Basin Temperature WY01-WY05
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr-0
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Jul-0
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-05
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06
Sample Date
Tem
pera
ture
(ºC
)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Bay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
Figure 9: San Joaquin River Main Stem Temperature WY01-WY05
Figure 11: San Joaquin River Main Stem Temperature WY01-WY05
0
5
10
15
20
25
30
35
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
Tem
pera
ture
(ºC)
Median
46
12.1.2 SPECIFIC CONDUCTANCE Specific conductance (SC) values ranged from 8.0 - 5,960 µmhos/cm across the SJR Basin. Seasonal patterns in SC were not as clearly defined as for temperature. In general, SC tended to decrease dur-ing the dry season (September through November), sometimes showing a peak during the first storm runoff and then decreasing until the irrigation season began in May/June with the highest concentra-tions recorded during the irrigation season. Exceptions to this rule include water bodies that receive wetland releases in early spring (Grasslands sub-Basin and SJR), where additional spikes are evident (Steenson, et al., 1998). This pattern is depicted in Figures 12 and 13, the NE Basin and SJR sites, respectively. In addition, overall SC values appeared to decrease during wet WY 2005, although the seasonal trend patterns remained similar. Temporal anomalies within each sub-basin are discussed below. Northeast Basin: The Northeast basin was managed from April through October by diverting water into different channels to supply agricultural use. Each growing season, Bear Creek, which naturally would be dry for the summer months like the Cosumnes River, was dominated by agricultural supply that was diverted from the Mokelumne River. This change in water type was observed each year when the Bear Creek SC dropped to about 50 µmhos/cm, the approximate year round SC of the Mokelumne River. Pixley Slough is also dominated by agricultural supply during the growing season and seemed to follow the same trend, but it wasn’t as dramatic as Bear Creek. The one notable difference between the dif-ferent water year types was that Bear Creek was about 100 µmhos/cm higher during winter months of a wet year than during the dry years. Eastside Basin: French Camp Slough and Lone Tree Creek followed the Northeast Basin’s Bear Creek trend with having lower concentrations of SC in the growing season and higher concentrations during the winter. The Harding Drain also followed this same trend of higher levels during the winter months and lower levels during the agricultural season but the levels of SC are much higher than any of the other agricultural influenced sites in this basin (e.g. Turner Slough). The Eastside river sites were fairly consistent throughout the 5 years with Stanislaus River demonstrating little seasonal variability. The Tuolumne River is a little more sporadic, but always seemed to drop in April. The Merced River had the opposite trend when compared to Bear Creek in the Northeast Basin. Specific conductance levels on the Merced River went up during the growing season and down in the winter months. Southeast Basin: Bear Creek in the Southeast Basin, like the Eastside rivers, didn’t fluctuate drastically and showed sporadic levels similar to the Tuolumne River although no seasonal trends seemed to be evident in Bear Creek. Dramatic changes were identified in Deep Slough, similar to the Harding Drain, but seemed to drop drastically in the 2005 wet year when compared to the previous consecutive dry years. South Delta Basin: The South Delta Basin’s SC levels were mostly above 500 µmhos/cm unlike the Northeast basin where all the samples were below 500 µmhos/cm. The New Jerusalem Drain (dis-charging shallow groundwater from the basin) reported consistently high SC levels all year long fluctu-ating around 2500 µmhos/cm with no noticeable consistent trend. Mountain House Creek, an ephemeral stream which historically received agricultural tail water, was dry for about half of the sampling period through 2003. In 2004, the site was removed from the sampling program due to the rapid community development with about 43,500 residents settling on the land ad-jacent to and surrounding the creek (Weston, 2009). The change in localized land use included rerout-ing storm water runoff into a collection system and resulted in continuous dry conditions for the original creek bed. During sampling conducted prior to the development (from December 2000 through Febru-ary 2001), Mountain House Creek had seasonally stable SC values (typically below 1000 umhos/cm), similar to New Jerusalem Drain.
47
Old River is dominated by estuary flow characteristics. Old River followed the same SC characteristics of the Tuolumne River on the Eastside Basin fluctuating throughout the year with lower SC levels measured during the 2005 wet year, but overall Old River fluctuated at a higher SC level. Tom Payne Slough fluctuated like the Harding Drain with drastic fluctuations between summer and win-ter months. Like the Harding Drain, Tom Payne Slough has influences other than agricultural which include NPDES discharges and tidal influences. However, similar to the rest of the Delta Basin sites, Tom Payne Slough generally reported higher SC concentrations than the Harding Drain. Westside Basin: Like the Delta Basin, the Westside Basin had higher SC levels than the Northeast Ba-sin. Westside sites Del Puerto Creek, Grayson Drain, Ingram Creek, Hospital Creek and Orestimba Creek are ephemeral streams dominated by irrigation return flows. Ingram Creek had the largest SC fluctuations during the irrigation season and was the only creek to have very high distinct SC values during the winter months. Orestimba Creek receives operational spill from the CCID (Central California Irrigation District) Main Canal which could result in dilution and may have contributed to the narrower range of fluctuation in SC levels when compared to the other Westside sites. Grassland Basin: The Grassland Sites had higher values of SC than most of the other basin sites. The San Luis Drain represents shallow groundwater discharge from approximately 97,000-acres (Bureau of Reclamation, 1995) of irrigated agriculture and affects SC values observed in Mud Slough (Figure 14). All the Grassland sites had an oscillating trend that peaked in March or April, which corresponds to both wetland releases and pre-irrigation runoff (Figure 14). The Grassland Basin is highly managed and does not demonstrate a significant difference between water year types aside from slightly lower SC values during the 2005 wet year. Spatially, the Northeast, Eastside and Southeast Basins had considerably lower levels of SC as com-pared to the South Delta, Westside, and Grassland Basins (Figure 15). The eastern basins draining the Sierra watershed begin with less saline water than those dependent on imports from the Delta. Al-though each basin had unique seasonal and temporal trends, during the 2005 wet water year there was a slight decrease in the SC values at most sites. Inflows from the various sub-basins appear to have a dramatic overall effect on the SJR as the inflows progressively reach the river (Figures 15 and 16). As we travel downstream, Southeast Basin flows tend to be trapped at Sack Dam and diverted. The SJR at Lander Avenue is dominated by ground wa-ter accretion for much of the year and provides a background elevated SC in the river. High SC levels in Salt Slough and Mud Slough, resulting from wetland as well as surface and subsurface agricultural drainage, increase the already elevated river levels. Starting immediately downstream of the Hills Ferry site, the Eastside tributaries (Merced, Tuolumne and Stanislaus Rivers) begin to influence SC levels along the SJR and gradually lower them resulting in levels observed at Vernalis that are just slightly higher than at Sack Dam.
48
Figure 12: San Joaquin River Northeast Basin Specific Conductivity WY01-WY05
0
200
400
600
800
1000
1200O
ct-0
0
Jan-
01
Apr-0
1
Jul-0
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-05
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Oct
-05
Jan-
06
Sample Date
SC
(µm
hos/
cm)
Cosumnes River @ Tw in Cit ies Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8)Bear Creek @Low er Sacramento Rd. Bas in Plan Objective for SJR @ Vernalis (Apr 1-Aug 31, 700 µmhos/cm; Sep 1-Mar 31,1000 µmhos /cm)
Figure 13: San Joaquin River Main Stem Specific Conductivity WY01-WY05
0
1000
2000
3000
4000
5000
6000
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
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-01
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-02
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-03
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-03
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-04
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-04
Jul-0
4
Oct-
04
Jan-
05
Ap
r-05
Jul-
05
Oct
-05
Sample Date
SC (µ
mho
s/cm
)
SJR @Sack Dam SJR @ Lander SJR @ Fremont FordSJR @ Hills Ferry SJR @ Crow s SJR @ Patterson SJR @ Maze SJR @ Airport Way/Vernalis Bas in Plan Objective for SJR @ Vernalis (Apr 1-Aug 31, 700 µmhos/cm; Sep 1-Mar 31,1000 µmhos/cm)
49
0
1000
2000
3000
4000
5000
6000O
ct-0
0
Jan-
01
Apr-0
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-03
Jan-
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Apr-0
4
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
SC
(µm
hos/
cm)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Dra in Dis charge from SLD Mud Slough (n) (downstream) @ San Luis Dra in Basin Plan Objective for SJR @ Vernal is (Apr 1-Aug 31, 700 µm hos/cm; Sep 1-Mar 31,1000 µmhos/cm)
Figure 14: San Joaquin River Grassland Basin Specific Conductivity WY01-WY05
50
Figure 15: Basin Specific Conductivity WY01-WY05 Figure 16: San Joaquin River Main Stem Specific Conductivity WY01-WY05
0
1000
2000
3000
4000
5000
6000
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
Spec
ific
Con
duct
ivity
(µm
hos/
cm)
Median
0
1000
2000
3000
4000
5000
6000
Sou
thea
stB
asin
Gra
ssla
ndB
asin
Eas
tsid
e B
asin
Wes
tsid
e B
asin
Nor
thea
stBa
sin
Del
ta B
asin
Dis
char
ge a
tS
LD New
Jeru
sale
mD
rain
Spec
ific
Cond
uctiv
ity (
µmho
s/cm
)
Median
51
12.1.3 MEASURED pH The pH values ranged from 5.4 – 10.1 across the basin. Mean values in the SJR ranged from 7.6 to 7.9 units. Few levels dropped below 6.5 pH units, though several appeared to seasonally exceed 7.5 units—during the irrigation season in the SJR and during the storm season in the Northeast Basin. Seasonal variability appeared reduced during wet WY 2005. Occasional spikes, both high and low, were seen throughout the sampling season (Figures 17 and 18). Most of the basins appeared to follow the general trend of the Northeast Basin, with the majority of pH values falling between 7 and 8 units. The Cosumnes River had a wider range of variability compared to the Mokelumne River and the other sites. The variability seen in the Cosumnes River seemed to be most pronounced following its natural annual dry period. The Westside Basin showed similar occa-sional fluctuations as the Northeast Basin but reported slightly higher concentrations ranging most fre-quently from 7.7 to 8.4 pH units. The Grassland Basin and the SJR sites were sampled more frequently (weekly) and demonstrated clear seasonal fluctuations with the exception of Salt Slough. The pH values found in the river and Grasslands would peak in July and drop around January, following the same trend seen in temperature results. During the 2005 wet water year, there was no peak in July which can probably be attributed to the greater flows seen during this time when compared to the previous dry years. Spatially, the Northeast, Eastside and Southeast basins reported slightly lower pH than the Westside and Grassland Basin’s (Figure 19). Those differences did not appear to impact the SJR, as there does not appear to be any distinct difference in pH moving downstream (Figure 20). All of the river sites are approximately the same range and like the basin sites show occasional fluctuations, with the smallest minimums and greatest maximums recorded at the furthest upstream (SJR at Sack Dam) and down-stream (SJR at Airport) sites.
52
Figure 17: San Joaquin River Northeast Basin pH WY01-WY05 Figure 18: San Joaquin River Main Stem Specific Conductivity WY01-WY05
5
6
7
8
9
10O
ct-0
0
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
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Oct
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Jan-
03
Apr
-03
Jul-0
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Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
pH
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Basin Plan Objective (6.5-8.5)
Figure 19: Basin pH WY01-WY05 Figure 20: San Joaquin River Main Stem pH WY01-WY05
5
6
7
8
9
10
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
pH
Median Basin Plan Objective (6.5-8.5)
5
6
7
8
9
10So
uthe
ast
Bas
in
Gra
ssla
nd
Bas
in
Eas
tsid
eB
asin
Wes
tsid
eB
asin
Nor
thea
stB
asin
Del
ta B
asin
Dis
char
ge
atSL
D
New
Jeru
sale
mD
rain
pH
Med ian Basin P lan Ob jective (6 .5 -8.5 )
54
12.1.4 DISSOLVED OXYGEN Dissolved oxygen is well known to have clear diurnal patterns which make grab sampling for trend ana-lyses challenging, even if collecting at the same time each day. It was interesting to note that during this sampling effort, the variability in collecting weekly samples (Figure 21—the San Joaquin River sites) almost masked the seasonal pattern that was more evident with monthly sample collection (Fig-ure 22—the Northeast Basin). In general, dissolved oxygen (DO) had a defined seasonal oscillation that is opposite of temperature. Dissolved oxygen concentrations tended to increase from October through April and decrease from May through September. The same pattern was evident during wet WY 2005, but the range in concentrations was much less. Only discharge from the San Luis and New Jerusalem Drains (both carrying shallow groundwater from their respective basins) did not appear to have significant seasonal patterns with concentrations remaining near 10 mg/L at both sites. Spatially, the Grassland and Westside Basins had consistently higher DO levels than the Northeast Basin and non-river Eastside Basin sites, with the non-river sites of French Camp Slough and Lone Tree Creek reporting the lowest recorded DO concentration (0.4 mg/L) in May 2002 and October 2004, respectively. The highest values were observed in the San Luis Drain which had a mean of 12.5 mg/L. The river itself did not demonstrate much spatial variability with the majority of the reported values tracking near 10 mg/L DO. The greatest overall site variability was noted at Lander Avenue, with high and low spikes that did not tend to track the remaining sites. The two lowest overall DO concentrations of 0.6-mg/L and 1.3-mg/L were recorded at Sack Dam and at Airport Way, the most upstream and most downstream sites, respectively
55
Figure 21: San Joaquin River Main Stem Dissolved Oxygen WY01-WY05
Figure 22: San Joaquin River Northeast Basin Dissolved Oxygen WY01-WY05
0
5
10
15
20
25
Apr-0
1
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
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Oct
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Jan-
03
Apr
-03
Jul-0
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Oct
-03
Jan-
04
Apr
-04
Jul-0
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Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
DO
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pix ley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Basin Plan Objective (7.0 mg/L)
56
12.1.5 TURBIDITY Turbidity findings are based on samples taken from July 2002 through June 2004, which encompasses portions of three water years: WY2001 (dry); WY2002 (dry); and WY2003 (below normal). The limited data set does not appear to demonstrate specific seasonal trends reporting spikes and dips throughout the year with individual sites both in the Northeast Basin and along the SJR. However, most sites did demonstrate a spike in turbidity that corresponded to a winter storm in December 2002 (Figures 23 and 24). Most of the sites appeared to show the greatest fluctuation in concentrations during the WY2003 irrigation season (April through August 2003), with a number of high values recorded. Mud Slough (north) and Salt Slough within the Grassland Sub-Basin also demonstrated increases during wetland flood-up (September) and wetland releases (April). Both these water bodies receive drainage from wet-land habitat. These spikes were echoed in data for the San Joaquin River at Hills Ferry and at Fremont Ford—sites downstream of the Grasslands’ inflows but upstream of the first Eastside river inflow (the Merced River). Spatially, the Westside and Grassland Basins reported higher overall turbidity than basins draining the Sierra or the Delta. The exception was the Southeast Basin which had overall turbidity concentrations similar to the Grassland Basin. Both basins receive wetland drainage. The Westside basin consists of ephemeral streams dominated by agricultural discharges and reported greater and more frequent fluctuations in turbidity then the rest of the Basins (Figure 25). Storm water inflows and run-off were the most evident in Salado Creek during the 2002 storm event resulting in a turbidity value of 1990 NTU. The differences in the Basins are clearly shown by how they affect the SJR (Figure 26). Figure 27 pro-vides an example of the impact that sub-basin inflow can have on the SJR during a pre-irrigation and wetland drainage period (23 – 27 March 2003). The dashed pink line representing a 5% increase over “background” Lander Avenue concentrations, helps visualize Westside inflows to the river increasing turbidity until the main Eastside rivers provide fresh water and bring the turbidity back down to slightly above SJR at Lander levels. Figure 28 is an example during the winter storm event (18 – 19 December 2002). The Westside influences again raise the turbidity above “background” Lander Avenue concen-trations until after Hills Ferry when the Eastside Rivers enter the system. Figure 28 shows that during a winter storm event, turbidity in the SJR at Lander is greater than the turbidity downstream at Vernalis—opposite the finding during early spring.
57
Figure 23: San Joaquin River Northeast Basin Turbidity WY02-WY04 Figure 24: San Joaquin River Main Stem Turbidity WY01-WY05
0
50
100
150
200
250
300
350
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Sample Date
Turb
idity
(NTU
)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd.
Figure 26: San Joaquin River Main Stem Turbidity WY02-WY04
0
50
100
150
200
250
300
350
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
Turb
idity
(ntu
) Median
59
0
20
40
60
80
100
120
140
708090100110120130
SJR Mileage
Turb
idity
(NTU
)
Basin Plan objective with Lander as natural background
Basin Plan Objective with the river sites as natural background
Land
er
Frem
ont F
ord
Hill
s Fe
rry
Pat
ters
onCro
ws
Maz
e
Airp
ort
Way
/Ver
nalis
(Sal
t Slo
ugh
@ L
ande
r/Hw
y 16
5: 1
50 N
TU)
(Tur
ner S
loug
h at
4th
Ave
nue:
102
NTU
)
(Mud
slo
ugh
(n) (
dow
nstre
am)
@S
an L
uis
Dra
in: 8
2.5
NTU
)
(Mer
ced
Riv
e rH
atfie
ld P
ark
(Riv
erR
oad)
: 15.
9 N
TU)
(Ore
stim
ba C
reek
@
Riv
er R
d: 8
6.3
NTU
)
(Sta
nisl
aus
Riv
er @
Cas
wel
l: 6
.2 N
TU)
(Ingr
am C
reek
@ R
iver
Rd:
139
NTU
)
(Tuo
lum
ne ri
ver @
Shi
loh:
5.7
NTU
)
(Gra
yson
Dra
in: 5
.9 N
TU)
(Del
Pue
rto C
reek
@ V
iney
ard:
122
NTU
)
(Sal
ado
Cre
ek @
Hw
y 33
: 19.
2 N
TU)
(Har
ding
Dra
in d
isch
arge
@ S
anJo
aqui
n R
iver
(TID
5): 6
98 N
TU)
NorthSouth Flow
Figure 27: Turbidity Influences on the San Joaquin River from Lander to Airport Way/ Vernalis 3-25-03 and 3-27-03. Blue data points represent turbidity concentrations on the river. Pink lines are the Basin Plan objective with the river sites as background. Orange arrows represent west side influences, green arrows represent eastside influences and blue arrows repre-sent major tributary input.
60
60
80
100
120
140
160
180
200
708090100110120130
SJR Mileage
Turb
idity
(NTU
)
Basin Plan Objective with Lander as natural background
Basin Plan Objective with the river sites as natural background
Land
er
Frem
ont F
ord
Hill
s Fe
rry
Pat
ters
on
Cro
ws
Maz
e
Airp
ort
Way
/Ver
nalis
(Sal
t Slo
ugh
@ L
ande
r/Hw
y 16
5: 5
5.0
(Tur
ner S
loug
h at
4th
Ave
nue:
182
NTU
)
(Mud
slo
ugh
(n) (
dow
nstre
am)
@S
an L
uis
Dra
in: 2
4.8
NTU
)
(Mer
ced
Riv
er H
atfie
ldP
ark
(Riv
er R
oad)
: 45.
3 N
TU)
(Ore
stim
ba C
reek
@ R
iver
Rd:
49.
4 N
TU)
(Sta
nisl
aus
Riv
er @
Cas
wel
l: 5
2.3
NTU
)
(Ingr
am C
reek
@ R
iver
Rd:
103
NTU
)
(Tuo
lum
ne ri
ver @
Shi
loh:
94.
5 N
TU)
(Gra
yson
Dra
in: D
RY )
(Del
Pue
rto C
reek
@ V
iney
ard:
67.
6
(Sal
ado
Cre
ek @
Hw
y 33
: 199
0 N
TU)
(Har
ding
Dra
in d
isch
arge
@ S
anJo
aqui
n R
iver
(TID
5): 1
6.2
NTU
)
NorthSouth Flow
Figure 28: Turbidity Influences on the San Joaquin River from Lander to Airport Way/ Vernalis 12-18-02 and 12-19-02. Blue data points represent turbidity concentrations on the river. Pink lines are the Basin Plan objective with the river sites as background. Orange arrows represent west side influences, green arrows represent eastside influences and blue arrows repre-sent major tributary input.
61
12.1.6 TOTAL SUSPENDED SOLIDS Total suspended solids (TSS) samples were generally collected weekly at the SJR main stem sites (ex-cept during WY04 where no TSS samples were collected due to funding shortfalls) and monthly during WY01 at all the drainage basin sites. TSS was also collected monthly during the irrigation season (June thru August) in WY05 at the Westside Basin sites. Elevated levels in both the SJR and Basins between January and April 2001 correspond to a series of significant (greater than 1-inch) rainfall events. The TSS begins to climb again at the beginning of the irrigation season (June) and remain ele-vated, but concentrations remained lower than the spikes seen during storm events. For the SJR sites, there was no obvious difference in concentrations during wet WY 2005, except for an increased fre-quency of spikes during winter rainfall events (Figure 29). Figure 30 displays the TSS data available during the irrigation season (March thru September) during both WY01 and WY05 for the Westside Basin sites. The incomplete data sets indicate increasing con-centrations, particularly in Ingram and Hospital Creeks and Grayson Drain which show a number of spikes above 3,000 mg/L TSS. The variability in findings indicates the need for more continuous data sets during the irrigation season. Spatially, similar to turbidity, the Westside and Grassland Basins had higher concentrations of TSS when compared to the other Basins (Figure 31). Most of the larger waterways seemed to track consis-tently with the river sites downstream of their inflows. In particular, the highest overall levels of TSS in the SJR were recorded at Fremont Ford and Hills Ferry (Figure 32)—downstream of Grassland Basin and some Westside Basin inflows, but upstream of the Merced River and other Eastside Basin influ-ences. Overall concentrations in the SJR remained below 100-mg/L TSS with a median near 50-mg/L, as did all the sub-basins except the Westside. Although median Westside Basin TSS concentrations remained near 75-mg/L, 50% of the concentrations ranged between 40 mg/L and 345 mg/L. Some unique findings within selected sub-basins are noted below. Northeast Basin: Although similar in land use and size, the Cosumnes River TSS concentrations ap-peared to more directly track storm events when compared to the Mokelumne River (Figure 33). The one major difference between the basins is that flow from the Mokelumne River is regulated by Caman-che Reservoir. Reservoirs on other major rivers in the SJR Basin likely have similar buffering effects. Eastside Basin: Similar to turbidity, Turner Slough and Harding Drain had larger and more fluctuating TSS values than that of the rivers sites. Grassland Basin: The Discharge from SLD was monitored for TSS weekly through the Grassland By-pass Program. Flow in the drain is specifically regulated to minimize potential for bed sediment sus-pension and storm event influences. The TSS concentrations in the drain remained relatively constant just below 50-mg/L and did not reflect patterns noted in other Grassland waterbodies.
62
Figure 29: San Joaquin River Main Stem Total Suspended Solids WY01-WY05 Figure 30: San Joaquin River Westside Basin Total Suspended Solids Irrigation Season WY01 and WY05
Orestimba Creek @ River Rd. Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard
28000
Apr
-01
Mar
-01
Jun-
01
May
-01
July
-01
Aug
-01
Jun-
0 5
Mar
-05
Apr
-05
May
-05
Aug
-05
Jul-0
5
Dry WY 01 Irrigation Season Wet WY 05 Irrigation Season
63
Figure 31: Basin Total Suspended Solids WY01-WY05
0
50
100
150
200
250
300
350So
uthe
ast
Bas
in
Gra
ssla
ndB
asin
East
side
Bas
in
Wes
tsid
eBa
sin
Nor
thea
stB
asin
Del
ta B
asin
Dis
char
ge a
tSL
D
New
Jeru
sale
mD
rain
TSS
(mg/
L)
28000
Median
Figure 32: San Joaquin River Main Stem Total Suspended Solids WY01-WY05
0
50
100
150
200
250
300
350
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
TSS
(mg/
L) Median
64
Figure 33: San Joaquin River Northeast Basin Total Suspended Solids WY01
0
10
20
30
40
50
60O
ct-0
0
Jan-
01
Apr
-01
Jul-0
1
Sample Date
TSS
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)
65
12.1.7 TOTAL ORGANIC CARBON Total organic carbon (TOC) samples were to be collected weekly at the SJR main stem sites and monthly at the drainage basin sites. Unfortunately, major gaps exist in the data due to both limited funding and sample quality control. Key gaps exist for the river sites during the winter storm periods (January thru March) of 2002, 2003 and 2004. Data for sites collected in the basin demonstrate the same gaps with the addition of no data between May 2003 and October 2004. The distinct data gaps make trend analyses difficult. In general, the major river sites appear less susceptible to random spikes in concentration and demon-strate elevated levels during winter storm events and the irrigation season. Using the Eastside Basin as an example (Figure 34) the river sites (Merced and Tuolumne Rivers) do not fluctuate as drastically as Turner Slough and Lone Tree Creek. Some of the spikes in TOC concentrations correspond to storm events, such as the spike seen in Lone Tree Creek in the winter of WY2005. Other spikes (Turner Slough in Dec 2000 and French Camp Slough in May 2002) don’t correspond to a large or first-flush storm event. The Cosumnes River was an exception to the other major river sites in that it did show a dramatic spike in June of 2001, which corresponds to a small rain event just before this ephemeral stretch of the river dried (Figure 35). At no other time did TOC concentrations rise as dras-tically at this site before the seasonal dry periods. Sites moving downstream along the SJR that receive wetland discharge (Lander Avenue, Fremont Ford and Hills Ferry) also show elevated concentrations during wetland releases in early spring. During wet WY05, TOC concentrations in the SJR tended to decrease after the final storms in April and did not show the same magnitude of increase during the irrigation season as was evident during previous dry years (Figure 36). Overall, total organic carbon values ranged from <1.0 mg/L at many of the sites to a maximum of 67 mg/L at Lone Tree Creek. Between the basins, the Grassland basin has a higher median TOC than all the other basins (Figure 37). The Northeast and Eastside river sites have the lowest concentration of TOC. The non-river sites for the rest of the basins have higher concentrations, fluctuations and high spikes of TOC. These spikes could be influenced by storm events, agricultural and wetland manage-ment practices. Some unique characteristics for selected basins are discussed below: South Delta Basin: The South Delta Basin on average had lower concentrations of TOC than the East-side Basin non-river sites. The New Jerusalem Drain had the lowest concentration of TOC throughout the sampling period. There was one large TOC spike found in the New Jerusalem Drain, Tom Payne Slough, and Old River between the end of August and October of 2001. No rainfall was measured dur-ing August 2001, with the first rains starting in September 2001. The early spike measured in TOC could have been attributed to agricultural influence with the later part being a combination of agricul-tural influence and storm flows. Westside Basin: Westside Basin TOC concentrations fluctuated like the Eastside Basin non-river sites, but without as large of spikes. In addition to spikes in June of 2001, the same distinct spike noted in the South Delta in October of 2001 also occurred in Westside water bodies—. The October 2001 spike corresponded to the first rains after a very dry summer. Grassland Basin: The Grassland Basin’s fluctuations looked very similar to the Westside Basin’s, with major spikes in the fall of 2001. Levels of TOC were typically higher early in the fall, when local flows also increase due to spill from the seasonal flooding of surrounding wetland habitat. Levels typically dropped after the initial week of wetland flood-up and prior to the first storm event. Concentrations of TOC during wet WY of 2005 for the Grassland basin were noticeably more stable than those measured during the dry WY of 2001.
66
Moving down the main stem of the SJR (Figure 38), Sack Dam had a median background concentra-tion of 3-mg/L TOC. The median TOC concentrations then peaks to 8-mg/L at the next downstream site (SJR at Lander) and progressively decreases until reaching the boundary of the Delta (Airport Way) with a median TOC back near 3-mg/L. The Lander Avenue site had the highest concentrations and most dramatic fluctuations of TOC along the SJR. Inflows from the sub-basins seem to contribute to the drop in concentration of TOC moving toward the Delta. Figure 34: San Joaquin River Eastside Basin Total Organic Carbon WY01-WY05
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TOC
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatf ield Park (River Road)
Stanis laus River @Casw ell Bay -Delta Authority Target (3 mg/L)
Lone Tree Creek @ Aus tin Rd French Camp Slough @ Airport
53 675234
67
Figure 35: San Joaquin River Northeast Basin Total Organic Carbon WY01 – WY05 Figure 36: San Joaquin River Main Stem Total Organic Carbon WY01 – WY05
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pix ley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Bay-Delta Authority Target (3 mg/L)
68
Figure 37: Basin Total Organic Carbon WY01-WY05 Figure 38: San Joaquin River Main Stem Total Organic Carbon WY01-WY05
0
5
10
15
20
25
30
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
TOC
(mg/
L)
Median Bay-Delta Authority (3.0 mg/L)
0
5
10
15
20
25
30
Sout
heas
tB
asin
Gra
ssla
ndB
asin
Eas
tsid
eB
asin
Wes
tsid
eB
asin
Nort
heas
tB
asin
Delta
Bas
in
Dis
char
ge a
tS
LD New
Jeru
sale
mD
rain
TOC
(mg/
L)
32 Median Bay-Delta Authority (3.0 mg/L)
67 31
69
12.1.8 BACTERIA Total coliform and Escherichia coli (E. coli) sampling began in July 2002 and continued through WY05. The analytical method used for bacteria analyses during this study (IDEXX) has a maximum detection limit of 2419.6 MPN/100ml and a minimum detection limit of 1 MPN/100ml, numbers which were used as the upper and lower boundaries for median concentration calculations and graphs. Results ranged from 52 MPN to >2419.6 MPN for total coliform and1.0 MPN to >2419.6 MPN for E.coli. Total coliform concentrations tended to exceed the maximum detection limits at most sites except dur-ing storm events—when the concentrations decreased rapidly. Figure 39 demonstrates the trend for the Northeast Basin. In contrast, the majority of E. coli concentrations (a subset of total coliform) were reported within the detectable ranges and showed sporadic spikes in concentration, some related to storm events and oth-ers related to dry periods. Figures 40 and 41 demonstrate the variability seen in the results for the Northeast Basin and SJR sites, respectively. A number of the E. coli spikes during the winter season occurred when the sample was collected during the first flush of a major storm series—at a time when the total coliform was still above reporting limits, with subsequent samples showing much lower con-centrations. Of particular note is that during WY02, sampling frequency at the Northeast Basin sites increased to twice a month as that watershed cycled into the rotational basin sampling schedule. The increased sampling related to an increase in the number of spikes reported at those sites. In addition, a greater number of elevated E. coli concentrations were detected in the SJR between January and June during wet WY05 when compared to previous water years. Spatially, total coliform appeared uniformly high throughout the SJR Basin and was normally above de-tection limits with lower concentrations mostly seen during high flow events. For E. coli, the Grassland and South Delta Basin had lower concentrations compared to the rest of the basins (Figure 42). The Westside Basin had a considerable increased number of E. coli spikes when compared to the rest of the basins as well as higher overall spikes during low flow time periods. Both the Westside and South-east Basins reported 50% of samples collected falling between 200 MPN/100ml and 1200 MPN/100ml—much higher than the remaining basins. The river itself had the highest median E. coli concentration (124 MPN/100ml) at the Hills Ferry site, just prior to inflow from the Eastside rivers. The Hills Ferry site also had the highest overall concentra-tions in the SJR, but the majority of samples remained well below 235 MPN/100ml (the US EPA guide-line for full contact recreation) (Figure 43). Some unique characteristics noted for selected sub-basins follow. Northeast Basin: The Northeast Basin’s total coliform stayed mostly at the maximum detection limit until higher flow events during which the levels dropped (Figure 39). Lower concentrations during high flow events were more pronounced for the river sites than Bear Creek and Pixley Slough. E. coli was mostly found to be around the lower level of detection and would spike upwards during lower flow events (Fig-ure 40). The river sites did not seem to spike as frequently as Bear Creek and Pixley Slough. E. coli in Bear Creek and Pixley Slough also spiked periodically during higher flow events. South Delta Basin: South Delta Basin bacteria concentrations had a similar trend to the Northeast Ba-sin, but overall E. coli had much lower concentrations. E. coli for the New Jerusalem Drain never went above 27 MPN/100ml, which is likely related to the fact that it is a collection system for shallow ground water (subsurface tile drainage). The two samples collect in Mountain House Creek prior to drainage diversion after urban conversion, were both very high with the lowest sample at 1046.0 MPN/100ml.
70
Westside Basin: The Westside Basin showed the same trend as the Northeast Basin river sites. E. coli found in the Westside Basin showed the greatest number of spikes throughout the whole year. Ores-timba Creek had the lowest number of samples above the detection limit for E. coli, but the second highest geometric mean. Grassland Basin: The Grassland Basin had lower E. coli levels, similar to the Delta Basin, with only two samples found above the detection limit. The discharge from SLD had the lowest levels of E. coli in the basin. The SLD also consists of subsurface tile drainage, similar to the New Jerusalem Drain, but for a larger area. Figure 39: San Joaquin River Northeast Basin Total Coliform WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
/100
ml)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd.
71
Figure 40: San Joaquin River Northeast Basin E. coli WY02-WY05
0
500
1000
1500
2000
2500Ju
l-02
Oct
-02
Jan-
03
Apr-0
3
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
E. c
oli
(MP
N/1
00m
l)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. USEPA Guideline: Designated Beach Area (235 MPN/100ml)
Figure 41: San Joaquin River Main Stem E. coli WY01 – WY05
Figure 43: San Joaquin River Main Stem E. coli WY02-WY05
0
500
1000
1500
2000
2500
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
E. c
oli
(MP
N)
Median USEPA Guidline (235MPN/100ml)
73
12.1.9 NUTRIENTS Nutrient samples were collected throughout the basin on a monthly basis through WY02 (excluding ni-trate-N and ammonia-N). At the end of fiscal year 02/03, an initial review of the data collected and a review of collaboration efforts with the Total Maximum Daily Load (TMDL) programs (specifically the TMDL for dissolved oxygen) were completed. With a redirection of the DO TMDL program to conduct continuous measurements at select sites and add additional monitoring for chlorophyll a, nutrient col-lection at most of the drainage basin sites was discontinued to avoid duplication of effort. The excep-tions were Mud Slough upstream of SLD, Discharge at SLD and Mud Slough (downstream) @ SLD which are monitored in conjunction with the Grassland Bypass Program, and continued collection at the SJR main stem sites of SJR @ Fremont Ford and SJR @ Crows Landing until December 2004. Much of the data for WY02 and the first half of WY03 was removed from the data set due to failed QA/QC. Most of the nutrients at sites within the SJR Basin had relatively low levels, with the exception of nitrate; however, the limited data set makes trend analyses difficult. Figure 44 depicts available SJR nitrate information for this program. From the information collected in WY01, nitrate increases during both the storm season (January thru March) and then again during the irrigation season. The available data mirrors portions of those trends in 2002 and 2003. Nitrate concentrations reported for the Northeast Basin were all below 6-mg/L, with little discernible trends during the single water year of data (WY01)(Figure 45). The Westside Basin reported higher overall concentrations and a distinct spike in Orestimba Creek during the storm season and spikes in Del Puerto during April (typically a pre-irrigation period) as well as June thru September (Figure 46). Spatially, nitrate is high at several sites throughout the basin especially the Discharge at SLD and New Jerusalem Drain—both of which carry subsurface agricultural drainage (shallow groundwater) and had the majority of concentrations reported above 45-mg/L. The Harding Drain within the Eastside Basin was also somewhat elevated with values ranging from 9.9 mg/L to 44 mg/L. Overall, the Westside Ba-sin had the highest median nitrate concentration (12-mg/L) when compared to the rest of the SJR Basin (Figure 47). Information from the specific sub-basins is listed below. Northeast Basin: The Northeast Basin had very low levels of nutrients and most of the collected sample results were non-detect. The Mokelumne River had only 5 samples that were just slightly above detec-tion levels. The Cosumnes River had slightly higher levels of nitrate, phosphorus and potassium than the Mokelumne River. Pixley Slough nutrient levels, unlike Bear Creek, have lower levels of nutrients than the Cosumnes River. Bear Creek had the highest concentrations of nutrients for the Northeast Basin. Higher concentrations of nutrients mostly occurred during the winter months. Eastside Basin: The Eastside Basin river sites had low concentrations similar to the Northeast Basin river sites. French Camp Slough and Lone Tree Creek had higher fluctuating levels than Bear Creek in the Northeast Basin. Harding Drain had higher fluctuating levels for all nutrient samples collected in the basin. Turner Slough had high levels during January 2001 through April 2001 for TKN, phosphorus, orthophosphate-P and potassium. For the rest of the sampling period the concentrations at Turner Slough were comparable to the river sites within the basin. Southeast Basin: The Southeast Basin had fluctuating levels of nutrients similar to Bear Creek in the Northeast Basin. South Delta Basin: All sites within the South Delta Basin reported low levels of nutrients except for ni-trate levels in the New Jerusalem Drain. The nitrate levels in the New Jerusalem Drain were six times higher than the other South Delta Basin sites as well as the river sites of the Northeast Basin.
74
Westside Basin: Overall the Westside Basin reported higher nitrate levels than the other Basins (Figure 47). Salado and Orestimba Creeks showed higher concentrations during the winter months and Del Puerto Creek typically showed a spike during the irrigation season. Grassland Basin: The discharge from SLD had the highest concentration of nitrate, but had lower con-centrations of the other nutrients compared to the rest of the Grassland sites. Nitrate concentrations in the SLD were highly elevated in the winter and decreased somewhat but remained elevated above 45-mg/L through the irrigation season. Mud Slough (north) downstream of the SLD discharge tracked the drain’s concentrations and had much higher concentrations of nitrates than Mud Slough upstream. The Main Stem SJR showed increasing nitrate concentrations between Lander and Patterson—the stretch of river receiving inflows from the Grassland (including SLD) and Westside Basins and the Merced River (Figure 48). Nitrates decrease from SJR at Patterson to Airport Way with inflows from the Tuolumne and Stanislaus Rivers. Most other nutrient concentrations decreased in the main stem of the river moving down the system or stayed the same resulting in very low concentrations. The New Jerusalem Drain enters the SJR downstream of Airport Way. Figure 44: San Joaquin River Main Stem Nitrate WY01 – WY04
Figure 45: San Joaquin River Northeast Basin Nitrate WY01 Figure 46: San Joaquin River Westside Basin Nitrate WY01
0
5
10
15
20
25
30
35
40
45O
ct-0
0
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Sample Date
Nitr
ate
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)California Primary MCL (45mg/L)
0
10
20
30
40
50
60
70
80
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Sample Date
Nitr
ate
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. California Primary MCL (45mg/L)
76
Figure 47: Basin Nitrate WY01-WY02 Figure 48: San Joaquin River Main Stem Nitrate WY02-WY04
0
10
20
30
40
50
60
70
80
90
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
Nitr
ate
(mg/
L)
Median California Primary MCL (45 mg/L)
0
10
20
30
40
50
60
70
80
90
Sou
thea
stB
asin
Gra
ssla
ndBa
sin
Eas
tsid
e Ba
sin
Wes
tsid
eBa
sin
Nor
thea
stB
asin
Delta
Bas
in
Dis
char
ge a
tS
LD New
Jeru
sale
mD
rain
Nitr
ate
(mg/
L)
Median California Primary MCL(45mg/L)
110
77
12.1.10 BIOCHEMICAL OXYGEN DEMAND As with the nutrient samples, Biochemical Oxygen Demand (BOD) samples were collected throughout the basin on a monthly basis through WY02. At the end of fiscal year 02/03, an initial review of the data collected was completed, as well as a review of collaboration efforts with the DO Total Maximum Daily Load (TMDL) effort. A change in the monitoring strategy for the DO TMDL eliminated the need for continued BOD analyses by this effort. Biochemical Oxygen Demand (BOD) is a procedure that measures how fast biological organisms use oxygen in a body of water. Bodies of water with higher concentrations of organic matter have aerobic bacteria that decompose organic matter using the available oxygen within the water body. High nitrates and phosphates also contribute to higher BOD because they contribute to increased plant and algae growth which increase plant loss contributing to higher organic waste. Increased temperatures also contribute to higher algae growth. For this discussion we will be looking only at BOD5 (biochemical oxygen demand 5-day test). Higher fluctuations in BOD5 occurred at most sites during the winter months and corresponded to spikes in flow and TOC. Concentrations of BOD5 also increased and remained elevated during sum-mer months, peaking during September, which again tracked TOC concentrations. Spatially, all of the Eastside river sites had low concentrations of BOD5 which reflect their low concen-trations of TSS and TOC, when compared to the rest of the SJR Basin sites. The rest of the basin sites, except New Jerusalem Drain, had higher levels of TOC and TSS, and BOD5. Figure 49 shows the Northeast basin as a whole had the lowest BOD5 compared to the rest of the Basins. Some distinct findings within each sub-basin are noted below. Northeast Basin: The Northeast Basin Mokelumne River had BOD5 concentrations at or below 1 mg/L. The Cosumnes River had levels similar to the Mokelumne River most of the time except during June 2001, which was just before the river dried and the BOD5 level increased to about 4 mg/L. This in-crease corresponds to the light rain event that occurred just before the river went dry and a similar spike in the TOC concentration. Potential inflow of nutrients and organic matter during the rain event, coupled with the already decreased flows and increased temperatures encourages algae growth, and may have contributed to higher BOD5 levels. Pixley Slough and Bear Creek had higher fluctuations of BOD during the winter months of January and February. Eastside Basin: The Eastside Basin river sites had BOD5 levels mostly under 1 mg/L. There was one very large spike within all the river sites in December 2002, which corresponds to a storm event. The rest of the Eastside Basin sites fluctuate between 2 mg/L to 8 mg/L. The Harding Drain had the highest quartiles compared to the other Eastside Basin sites that had agricultural influences. Southeast and Westside Basins: The BOD5 concentrations in both basins fluctuated like the non-river sites of the Eastside Basin with multiple spikes in the summer and winter. South Delta Basin: The BOD5 concentrations at most of the South Delta Basin sites fluctuated like the non-river sites of the Eastside Basin except for the New Jerusalem Drain. Although the New Jerusalem Drain had high nitrate concentrations, it also had very low TSS and TOC concentrations, and BOD5 levels hovering just above the detection limit of 0.1 mg/L. Grassland Basin: The Grassland Basin fluctuated like the non-river sites of the Eastside Basin as well but fluctuated at slightly lower levels. The Main Stem SJR sites whisker plot (Figure 50) looks very similar to the TOC whisker plot (Figure 38). BOD5 has a very similar trend to TOC with Sack Dam having concentrations below 1 mg/L. The
78
SJR at Lander had the highest fluctuations of BOD5 when compared to all the other sampling locations along the SJR. The BOD5 concentrations tend to decrease from SJR at Lander to the SJR at Airport Way where BOD5 is mostly under 2 mg/L. Figure 49: Basin BOD-5 Day WY02-WY03 Figure 50: San Joaquin River Main Stem BOD-5 Day WY02-WY03
0
1
2
3
4
5
6
7
8
9
10
SJR @Sack Dam
SJR @LanderAvenue
SJR @Fremont
Ford
SJR @Hills Ferry
SJR @Crows
Landing
SJR @Patterson
SJR @Maze
SJR @AirportWay
BO
D-5
Day
(mg/
L)
Median
0
2
4
6
8
10
12
14
16
18
Sou
thea
stB
asin
Gra
ssla
ndB
asin
Eas
tsid
eB
asin
Wes
tsid
eBa
sin
Nor
thea
stB
asin
Delta
Bas
in
Disc
harg
e at
SLD New
Jeru
sale
mDr
ain
BO
D-5
Day
(mg/
L)
Median
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12.1.11 MINERAL ANALYSIS Mineral samples were collected throughout the basin on a monthly basis during WY01 and sporadically during WY02 and WY03. At the end of fiscal year 02/03, an initial review of the data collected was done, as well as a review of collaboration efforts with other in-house programs, which resulted in a re-prioritization of monitoring efforts and the elimination of minerals from monitoring efforts. Within the limited dataset, some general patterns are discernible. In general, the highest mineral con-centrations occur along the western side of the SJR Basin, with elevated sodium concentrations and sulfate the dominant anion draining from the Grassland and Westside Basins and chloride the dominant anion from the Delta Basin. The eastern side of the SJR Basin reported much lower overall mineral concentrations with chloride the dominant anion. Carbonate was typically not detected or detected at very low levels, usually within the Westside Basin. Along the western side of the valley, the SLD influences overall mineral discharges from the Grassland Basin, with elevated concentrations year-round. Concentrations of chloride and sulfate from the drain tend to dominate concentrations in Mud Slough (north) as winter dilution flow decreases. In contrast, during the dry season, sodium levels are elevated in Mud Slough (north) both upstream and down-stream of the SLD discharge. The upstream concentrations are likely due to shallow groundwater dis-charge into the channel. For the remainder of the western side of the valley, mineral concentrations tended to increase during the winter then decrease but become somewhat elevated during the irrigation season. Sulfate and chloride concentrations all remained below the secondary drinking water MCL (250 mg/L), but sodium tended to remain above the irrigation supply guideline of 69-mg/L. The New Jerusalem Drain was the exception for sodium on the western side of the valley with concentrations remaining near 300 mg/L year-round. Along the eastern side of the valley (the Southeast, Eastside, and Northeast Basins), sodium, chloride and sulfate concentrations all remained well below guidelines. Sodium did tend to show low level spik-ing throughout the year. Some sites did show unique characteristics. Within the Westside Basin, Ingram Creek displayed pro-nounced seasonal fluctuation, similar to Tom Payne Slough of the Delta Basin, with marked increases in all minerals during storm events. Mud Slough (north) upstream of the SLD, was lower than the SLD in all mineral concentrations except total alkalinity and bicarbonate. While seasonal fluctuations of mineral concentrations are not distinctly seen within the SJR, the Main Stem sites do reflect the inflows from the various sub-basins. Mud Slough (north)’s influence on Hills Ferry is distinctly seen with all the mineral concentrations at this site consistently higher compared to the rest of the river. Sack Dam has the lowest concentrations within the river, but with the influences from the Southeast Basin, Grassland Basin and Turner Slough, mineral concentrations peak at Hills Ferry. Once the Eastside Basin rivers enter the SJR, mineral concentrations substantially decrease moving downstream to Airport Way, even with elevated concentrations coming in from the Westside Basin. 12.1.12 TRACE ELEMENTS Trace element samples were collected throughout the basin on a monthly basis through WY02. Hard-ness was analyzed simultaneously for each trace element sample in order to allow evaluation against aquatic life criteria. At the end of fiscal year 02/03, an initial review of the data collected and a review of collaboration efforts with other in-house programs were completed. Re-prioritization of monitoring efforts resulted in a removal of trace element collection. Note that during the collection period reporting limits changed for some constituents.
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Many of the results for this study were below the analytical reporting level. Some trace elements did appear to show some trends, depending on the location within the SJR valley. In general, the North-east and Eastside Basin river sites have lower concentrations than the other basins within the SJR val-ley. One issue to note with this finding is that the hardness levels in the northeast basin are also lower when compared to the other sub-basins. Hardness concentration is particularly important for aquatic life because hardness tends to buffer toxic impacts, allowing tolerance of higher concentrations of many trace elements. Some distinct findings within each sub-basin are listed below. Northeast Basin: Most of the trace elements sampled in the Northeast Basin had results below the re-porting limit. Copper and zinc were the only two metals that were consistently above minimum report-ing levels for all the sites within the Northeast Basin. Chromium had multiple samples above detection for most sites except the Mokelumne River which only had two samples for total chromium above de-tection levels. Eastside Basin: The Eastside Basin river sites were similar to the Mokelumne River with non-detect values for all metal constituents, except copper and zinc. The Eastside Basin river sites had more non-detect values for zinc than the Mokelumne River. The non-river sites were comparable to the river sites data, except for having higher concentrations of copper, zinc and total chromium. Nickel was also reported at concentrations above minimum reporting levels for the non-river sites during the winter higher flow periods. Southeast Basin: The Southeast Basin sites were similar to the non-river sites of the Eastside Basin. One exception was Deep Slough which had high levels of arsenic and total nickel reported year-round. South Delta Basin: The New Jerusalem Drain had non-detect values for most of the trace elements except for chromium where high concentrations were detected. Tom Payne Slough trace element con-centrations were similar to that of the Deep Slough, having higher levels of arsenic, but with minimal total nickel. Old River and Mountain House Creek both had very low levels of arsenic. Mountain House Creek, similar to Deep Slough, had total nickel concentrations found throughout the sampling period. Westside Basin: The Westside Basin unlike the Northeast Basin had more detected concentrations of total lead and had higher concentrations and major spikes of copper, zinc, and chromium. Hospital Creek had the largest spikes of copper, zinc, nickel and chromium. These very large spikes seemed to occur mostly during the irrigation season. Del Puerto Creek was the only Westside basin site that did not have any samples above the minimum detection level for lead. Grassland Basin: Salt Slough had very similar concentrations of trace elements compared to Deep Slough with just slightly lower levels of arsenic. Mud Slough Upstream was similar to Salt Slough hav-ing detectable arsenic but at slightly lower concentrations. The dominant trace element concentrations at the Discharge from SLD site were chromium and copper. The majority of the concentrations of trace elements that were seen in the Main Stem SJR were the dominant trace elements identified in the sub-basins including; arsenic, chromium, copper, nickel and zinc. With most of these constituents, trace element concentrations went up from Sack Dam to Hills Ferry due to the Grassland influences and from Hills Ferry downstream to Airport Way concentrations decreased due to the Eastside river influences. This trend is similar to the trend seen with minerals.
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12.1.13 TOXICITY Funding constraints limited the overall number of full (three species) water column toxicity tests. The three species tested were fathead minnow (Pimephelas promelas, sensitive to elevated nutrients, es-pecially ammonia), Ceriodaphnia dubia (sensitive to organic chemicals such as orthophosphorus-pesticides), and algae (such as Selanastrum capricornutum, sensitive to trace elements). During Water Years 01, 02 and partially in 03 acute toxicity tests were run on fathead minnow and Ceriodaphnia dubia, and while it was encouraging to see limited if any acute effects, there was concern that dilution flows might be masking some effect. Analyzing samples for chronic toxicity was more costly, but con-sidered a more conservative option. With limited funding during WY 04, toxicity samples for chronic fathead minnow and chronic Cerio-daphnia dubia were collected in the Main Stem during the irrigation season only. During WY 05, toxic-ity samples for acute and chronic fathead minnows, acute and chronic Ceriodaphnia dubia, and acute algae were collected once a month at the various sites shown in Table 1. Funding was not available to run toxicity identification evaluations (TIE) on samples identified as a toxic event and therefore results can only be evaluated against data collected during each sampling event. The sporadic sampling did not discern specific trends. Results in Table 6 are discussed by sub-basin below. Northeast Basin: Northeast Basin had recorded toxicity in the Cosumnes River and Bear Creek for the acute fathead minnow test (Table 6). One hundred percent of the four samples collected at Cosumnes River for the acute algae test had a reduction of cell growth. The Mokelumne River only displayed tox-icity for the chronic fathead minnow test. The rest of the samples during the sampling period displayed no toxic event. Eastside Basin: Within the Eastside Basin acute fathead minnow toxic events were only reported for French Camp Slough. Lone Tree Creek had one toxic event for acute Ceriodaphnia dubia. Acute al-gae and chronic fathead minnow test were only conducted at the river sites, except for four acute algae samples collected at Harding drain, and each site had toxic events (for algae reduction and increase in cell growth were found). Over 50 percent of the samples collected at Tuolumne River reported toxic events for the chronic fathead minnow test. Southeast Basin: Bear Creek at Bert Crane Road had three toxic events for the acute fathead minnow test. The remainder of the samples displayed no toxic events. South Delta Basin: The New Jerusalem Drain had one toxic event for the acute fathead minnow test and the acute Ceriodaphnia dubia test. Both of the two samples collected for the acute algae toxicity had a growth statistical difference which could be due to the very high nitrate concentrations within the New Jerusalem Drain. Tom Payne Slough had one toxic event (reduction of cell growth) out of one sample collected for the acute algae test. Mountain House Creek had one toxic event (increase in cell growth) out of two samples collected for the acute algae test. Westside Basin: Toxic events were seen at Orestimba Creek, Grayson Drain and Hospital Creek for the acute Ceriodaphnia dubia test. No other toxic events were observed. Note that only acute fathead minnow and Ceriodaphnia dubia samples were collected and analyzed within the Westside Basin. Grassland Basin: Salt Slough had a total of three acute algae samples collected with two having a re-duction in growth and one being an increase in algae growth. None of the seventeen samples col-lected at Salt Slough for acute fathead minnow or acute Ceriodaphnia dubia had toxic events.
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Spatially, not one basin stands out from the rest. As a whole, a majority of the acute algae samples within the SJR Basin had a toxic reduction or growth in algae. Only twelve samples out of 59 collected throughout the basin did not have a statistical difference from the control whether being a reduction or increase in algae growth. The Main Stem SJR sites reflected the same finding of the Basin sites with only eight out of the 31 samples of acute algae not having a statistical reduction or increase in growth when compared to the controls. At least one toxic event was found in each of the Main Stem sites sampled for the chronic fathead minnow and chronic Ceriodaphnia dubia tests.
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12.2 Evaluation of Beneficial Uses To evaluate potential impact, indicators were chosen for four broad beneficial uses as shown in Table 3:
1. Drinking water (Specific Conductivity, Total Organic Carbon, Trace Metals, Nutrients); 2. Aquatic life (pH, Temperature, Dissolved Oxygen, Turbidity, Trace Metals, Minerals and Water
Column Toxicity); 3. Irrigation water supply (Specific Conductivity, Minerals); and 4. Recreation (bacteria).
Exceedances/ elevated levels tables were created with the data collected using the applicable water quality goals and objectives as described in section 9.2. Appendix P provides the exceedance/ ele-vated levels tables which compare the total number of samples collected with the total number showing elevated levels for temperature, pH, SC, TOC, DO, turbidity (within the legal boundaries of the Delta), bacteria, nitrate, nitrate-N, ammonia-N, chloride, sulfate, TDS, sodium, total and dissolved arsenic, total and dissolved cadmium, total chromium, total and dissolved copper, total and dissolved lead, total and dissolved nickel, total and dissolved zinc and total mercury. Most of the criteria used to set trace ele-ment limits take into account the hardness of the water at the time of sample collection since increasing hardness will tend to buffer the effect of particular trace elements. The hardness calculations were taken into account in both the summary tables presented in Appendix P and the discussion here. Con-stituents in Appendix P are evaluated against multiple objectives and goals, when applicable, for com-parison of beneficial use impacts. Turbidity outside the Delta is discussed separately below. The Basin Plan Objective for turbidity within the San Joaquin River Basin was designed for point source discharges. When evaluating turbidity basin wide, with weeks between turbidity results and miles be-tween sites, the following evaluations should be looked at objectively and viewed as an overall com-parison of the basin. With this in mind, see Table 7 for the selected upstream sites that were chosen to describe “natural background” for this Basin Plan Objective. Note for Cosumnes River at Twin Cities Road, Bear Creek at Lower Sacramento Road, French Camp Slough at Airport, and Lone Tree Creek at Austin Rd that the sites were compared to the Delta objective because they discharge directly into the Delta. Also, upstream sites are really not applicable to compare with the Main Stem river sites and were not evaluated using the above approach. Turbidity effects along the Main Stem are discussed in section 12.1 of the discussion section. Monthly geometric means were used because of collection time differences. See Table 7 for the number of times the monthly geometric mean of a site is greater than the monthly geometric mean of the selected upstream site using the calculations of the Basin plan objective. The following discussion highlights information from Appendix P and Table 7 to assess beneficial use status in the SJR Basin.
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Table 7: Selected Upstream Site Locations and Number of Turbidity Samples Greater than Selected Upstream site
Location Site Selected Upstream location
Selected Upstream
Site
Turbidity's Monthly
GeoMean Count*
Number of samples greater
than Selected Upstream site
using the Basin Plan Turbidity
ObjectiveMain StemSJR @Sack Dam 541MAD007 NA NA NA NASJR @ Lander 541MER522 NA NA NA NASJR @ Fremont Ford 541MER538 NA NA NA NASJR @ Hills Ferry 541STC512 NA NA NA NA
SJR @ Crows 535STC504 NA NA NA NASJR @ Patterson 541STC507 NA NA NA NASJR @ Maze 541STC510 NA NA NA NASJR @ Airport Way/Vernalis 541SJC501 NA NA NA NA
Total Main Stem Count 0 0Southeast Bas in Deep Slough Green House Rd 535MER577 SJR @Sack Dam 541MAD007 17 8Santa Rita Slough at Highway 152 541MER015 SJR @Sack Dam 541MAD007 NA NA Bear Creek Bert Crane Rd 535MER007 SJR @Sack Dam 541MAD007 13 10
Total Southeast Basin Count 30 18Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 SJR @ Lander 541MER522 23 21Mud Slough (n) (upstream) @ San Luis Drain 541MER536 SJR @ Fremont Ford 541MER538 21 3Discharge from SLD 541MER535 Mud Slough (n) (upstream) @ San Luis Drain 541MER536 21 5
Mud Slough (n) (downstream) @ San Luis Drain 541MER542 SJR @ Fremont Ford 541MER538 22 2Total Grassland Basin Count 87 31
Eastside BasinTurner Slough at 4th Avenue 535MER576 SJR @ Lander 541MER522 17 17Merced River Hatf ield Park (River Road) 541MER546 SJR @ Hills Ferry 541STC512 10 0Harding Drain discharge @ San Joaquin River (TID5535STC501 SJR @ Crows 535STC504 13 1 Tuolumne River @ Shiloh 535STC513 SJR @ Patterson 541STC507 16 1 Stanislaus River @Caswell 535STC514 SJR @ Maze 541STC510 9 1
Total Eastside Basin Count 65 20West Side BasinOres timba Creek @ River Rd. 541STC019 SJR @ Hills Ferry 541STC512 17 14Solado Creek @ Hwy 33 541STC515 SJR @ Patterson 541STC507 11 8Del Puerto Creek @Vineyard 541STC516 SJR @ Patterson 541STC507 16 11Grayson Drain 541STC030 SJR @ Patterson 541STC507 13 11Ingram Creek @River Rd. 541STC040 SJR @ Patterson 541STC507 14 7Hospital Creek @River Rd. 541STC042 SJR @ Patterson 541STC507 13 9
Total West Side Basin Count 84 60Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 Discharges into Delta waters 150NTU 11 0Mokelumne River @New Hope Rd. 544SAC002 Delta Waters NA NA
Pixley Slough @ Davis Rd 531SJC507 Bear Creek @Lower Sacramento Rd. 531SJC515 16 6Bear Creek @ Thorton Road (J8) 544SJC508 Delta Waters NA NABear Creek @Lower Sacramento Rd. 531SJC515 Discharges into Delta waters 150NTU 17 0French Camp Slough @ Airport 531SJC504 Discharges into Delta waters 150NTU 8 0Lone Tree Creek @ Austin Rd 531SJC503 Discharges into Delta waters 150NTU 6 0
Total Northeast Basin Count 58 6Delta Basin New Jerusalem Drain 544SJC001 Delta Waters NA NA Tom Payne Slough @Paradise Rd. 544SJC505 Delta Waters NA NAOld River @Tracy Blvd 544SJC506 Delta Waters NA NAMountain House Creek 544SJC509 Delta Waters NA NA
Total Delta Basin Count 0 0*Number of times the monthly geomean was able to be calculated
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Drinking Water (Specific Conductivity, Total Organic Carbon, Trace Metals, E. coli, Nutrients) Indicators used to evaluate a potential impact to drinking water (sources of municipal and domestic supply) included salt measured as specific conductivity (umhos/cm), total organic carbon (TOC), se-lected trace elements (total arsenic, cadmium, copper, mercury, nickel, lead and zinc), nitrate and E. coli. For all of the indicators except E. coli, there are specific numeric objectives or goals for drinking water that results can be evaluated against (Appendix Q1 and Q2). There are no specific numeric cri-teria for E. coli related to consumption but the presence of E. coli would indicate that the water would need to be treated prior to consumption. For specific conductivity, the California Secondary MCL of 2200 umhos/cm for short term exposure was utilized. Elevated levels are found in the South Delta Basin non-river sites and in Salado Creek within the Westside Basin. The Main Stem sites that displayed elevated levels above this goal were SJR at Lander, SJR at Fremont Ford and SJR at Hills Ferry. These Main Stem sites are located upstream of the first eastside inflow (Merced River) and are therefore dominated by groundwater accretion and in-flows from the Southeast and Grassland Sub-basins. Once the Eastside rivers flow into the SJR, the specific conductivity within the SJR declines until Vernalis. The TOC goal of 3.0 mg/L is based on the Bay Delta Authority’s guideline for water quality in the Sac-ramento-San Joaquin Delta (Cal Fed Bay-Delta Program, 2000). This indicator was chosen to help identify potential sources of TOC to the Delta since all water bodies monitored flow into the San Joa-quin River and ultimately into the Delta. Overall TOC concentrations were reported above 3.0-mg/L throughout the SJR Basin (Figure 51). The Northeast Basin had the lowest concentrations of TOC compared to the rest of the SJR Basins, but still exceeded 3.0-mg/L about half of the time. Storm events and agricultural runoff during the irrigation season correlated well with many of the spikes in concentration, but the goal was surpassed in the majority of the sites at other times of the year as well and at sites that were not identified as receiving agricultural return flows. Roughly 10-percent of the 526-nitrate samples collected exceeded the nitrate California Primary MCL (45 mg/L). All of the 10 samples collected at New Jerusalem Drain (representing shallow ground water in the Westside Basin) were above this objective. The Grasslands Basin also had elevated levels of nitrate at all sites except Mud Slough upstream of SLD. Two sites (Discharge at SLD and Mud Slough (downstream) @ SLD—both within the Grassland Basin) had samples that exceeded the nitrate-N Cali-fornia Primary MCL (10 mg/L). For total arsenic two goals were evaluated for drinking water: 1) the Basin Plan Objective for the Cali-fornia Primary MCL of 50 µg/L and 2) the USEPA Primary MCL of 10 µg/L. No samples exceeded the Basin Plan objective during the 5 year sampling period. Thirteen samples exceeded the USEPA pri-mary MCL. The three sites that had elevated levels above this goal were SJR at Lander, Deep Slough and the Grayson Drain. The total cadmium Basin Plan Objective for the California Primary MCL of 5 µg/L, total copper Basin Plan Objective for the California Primary MCL of 1000 µg/L, and the total zinc Basin Plan Objective for the California Primary MCL of 5000 µg/L were never exceeded during the 5 year study. The total chromium Basin Plan Objective for the California Primary MCL of 50 µg/L, total lead Basin Plan Objective for the California Primary MCL of 15 µg/L, and the total nickel Basin Plan Objective for
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California Primary MCL of 100 µg/L were all exceeded by three sites in the Westside Basin. Hospital Creek, Ingram Creek and Grayson Drain exceeded these goals during the irrigation season. The total mercury Basin Plan Objective for the California Primary MCL of 2 µg/L was never exceeded during the 5 year sampling period. Total mercury was found elevated above the California Toxics Rule (USEPA) for sources of drinking water, 0.05 µg/L, once in Hospital Creek (0.2 µg/L). Table 8 is a quick summary to show whether the river or any of the basins have potential beneficial use impacts based on the indicators evaluated.
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Figure 51: Percentage of Total Organic Carbon samples greater than the Bay-Delta Authority Target (3.0 mg/L)
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Aquatic Life (pH, Temperature, Dissolved Oxygen, Turbidity, Trace Metals, Minerals and Water Column Toxicity) The Basin Plan objective for pH for freshwater with COLD or WARM beneficial uses is a range between 6.5 to 8.5 units. Each of the Basins exceeded this objective multiple times, but no site exceeded this objective more than 18 percent of the time. The Main Stem and the Grasslands exceeded this objec-tive during the summer irrigation season. The other basins exceeded this objective randomly with dras-tic fluctuations. The Bay-Delta Authority target for a temperature of 20ºC from April 1 – June 30 and from September 1 – November 30 applies to the San Joaquin River at Vernalis. Samples collected at Vernalis had tem-peratures recorded above this target 41% of the time during the 5-year study. Every site within the SJR Basin reported temperatures above this target at least once during the sampling period with the highest percentages seen within the Southeast and Grassland Basins. The dissolved oxygen Basin Plan objective of 7.0-mg/L (described in Appendix Q1 as outside the Delta for cold/spawning beneficial use) was used for all non-Delta sites. Results were found below the above objective at least once for every site except for the Cosumnes and Stanislaus Rivers. The basin with the highest percentage of results below the objective was the Northeast Basin in the non-river sites and the lowest percentages were found in the Westside Basin. Sites within the legal boundaries of the Delta were evaluated against the Basin Plan objective of 5.0 mg/L for dissolved oxygen. All Delta sites were below this objective at least once except New Jerusalem Drain. Tom Payne Slough had the high-est percentage of results below this objective with 19 out of 47 samples. Sites within the legal boundaries of the Delta were evaluated against the Basin Plan objective of 150 NTU for turbidity. This objective was only exceeded once at Mountain House Creek during a non-storm event. New Jerusalem Drain and Mountain House Creek both exceeded the objective during the De-cember 2002 storm event, however this objective doesn’t apply for storm events. For non-Delta sites the Basin Plan objective was designed for specific discharges. As described in the turbidity results sec-tion of this report, Table 7 attempts to use the Basin Plan objective to have an overall assessment of the SJR Basin turbidity concentrations. The Westside Basin had greater turbidity 71 percent of the time compared to the selected upstream sites. Higher turbidity levels were typically associated with major storm events and irrigation seasons. The USEPA California Toxics Rule for total and dissolved cadmium, total and dissolved nickel, dis-solved arsenic, dissolved lead, and dissolved zinc was never surpassed during the sampling period. No samples were elevated above the USEPA National Ambient Water Quality Criteria for 1 hour aver-age of 1.4 µg/L for total mercury during the sampling period. The USEPA California Toxics Rule for total and dissolved copper was exceeded in multiple samples, primarily in the non-river sites of the Northeast and Eastside Basin, particularly in French Camp Slough, Lone Tree Creek, and Pixley Slough. In addition the Westside and Southeast Basin had a few elevated samples for total copper as well. The USEPA California Toxics Rule for total lead was exceeded once in the Mokelumne River. Pixley Slough reported one sample above the USEPA California Toxics Rule for total zinc. Even though the concentrations of the metals were lower in the Northeast and Eastside Basins when compared to the Westside Basin, the hardness levels were also comparatively low which resulted in lower concentration thresholds that could impact aquatic life.
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No sample was reported above the chloride USEPA National Ambient Water Quality Criteria for 1-hour average of 860 mg/L during the study. Various levels of water column toxicity were reported on multiple occasions (Table 6). A higher per-centage of chronic toxicity was reported as compared to acute toxicity. Acute algae toxicity samples were collected less frequently than other toxicity samples, but had the highest percentage (50 percent) of toxic findings (samples having a reduction or increase in growth at all sites except for Fremont Ford). In summary there were multiple concerns throughout the basin for aquatic life. Drastic fluctuations of pH occur at multiple locations, but for the majority of the time most sites are within range of the Basin Plan objective. Elevated temperatures during the spring and fall may impact fish migration. Low DO levels were seen in multiple sites, most consistently in non-river sites, but no overt impact (e.g. fish kills) was ever noted. Trace element results exceeding hardness adjusted criteria were mostly reported in the Northeast and Eastside basins—as were the lowest hardness concentrations. Total copper was the primary trace element of concern having higher percentages of elevated levels in French Camp Slough, Lone Tree Creek, and Pixley Slough. Turbidity concentrations can become highly elevated during storm events and the irrigation season but become difficult to interpret with the fluctuation of background concentrations. Irrigation Water Supply (Specific Conductivity, Minerals) For specific conductivity the Basin Plan has an objective of 700 umhos/cm April through August and 1000 umhos/cm September through March for SJR at Airport Way (also known as Vernalis). This ob-jective only applies to a maximum thirty day running average. Although approximately 21 percent of individual samples collected at Vernalis had concentrations above the noted objective during the sam-pling period, exceedances can not be determined using the limited grab samples. Multiple samples at concentrations above the Water Quality Goal for Agriculture of 700 umhos/cm (Marshack, 2003) were found in all basins except the Northeast Basin. The Eastside Basin had the lowest percentage of elevated samples (39 out of 409—9.5%) and the Grasslands (1047 out of 1049--~100%), Westside (330 out of 516—64%) and the South Delta Basin (163 out of 188—87%) had the highest percentages of elevated samples. Multiple samples collected along the SJR also had concen-trations reported above the Water Quality Goal for Agriculture. The elevated concentrations were con-sistently clustered between Lander Avenue (primarily ground water accretions) and Maze Blvd., a stretch of river receiving inflows from the Grassland, Eastside and Westside Basins. Chloride and sodium concentrations that were above water quality goals of 106 mg/L and 69-mg/L, re-spectively, tracked elevated levels of specific conductance. Concentrations above the total dissolved solids Water Quality for Agriculture goal of 450 mg/L occurred mostly in the Grasslands and Westside Basin. The Northeast Basin was never above this goal and most of the elevated concentrations reported in the Eastside Basin were found in the Harding Drain. In summary, salt concentrations throughout the SJR Basin appear to be elevated above optimal con-centrations for irrigation water supply, except within the Northeast and Eastside Basins. Salt is a well documented issue within the Grasslands and Westside Basins, with the natural background of the area being highly saline and high salinity water being pumped from the Delta to meet agricultural needs. Huge continuous efforts to control salt have been implemented in the past and continue to this day.
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See the future actives section 14.0 of this report for more information on the current efforts being made to address salt in the SJR valley. Recreation (Bacteria) All the sites monitored during this study are either specifically designated or tributary to a water body designated for full contact recreation (e.g. swimming), except for the San Luis Drain and New Jerusa-lem Drain. As a conservative approach, the USEPA Guideline for full contact of 235 MPN/100ml E. coli was used to evaluate the entire SJR basin. Many of sites may not support full recreational contact due to physical attribute (e.g. ankle deep water), however, the use of a single guideline provided consis-tency for the review. The highest percentages of E. coli concentrations exceeding 235 MPN/100ml were found in the West-side Basin and the non-river sites of the Eastside Basin (Figure 52). E. coli spikes were seen during high and low flow events meaning E. coli spikes are randomly present during both winter storm events when it would be unlikely to find people swimming and during the warmer summer season when most recreational contact would occur.
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Figure 52: Percentage of E. coli samples greater than the USEPA Guideline: Designated Beach Area (235 MPN/100ml)
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Table 8: Summary of Potential Beneficial Use Concerns: San Joaquin River and Sub-Basin Sites (2000 to 2005) San Joaquin River Sub-Basins
Beneficial Use/Indicator Sack
Dam
Land
er A
ve
Frem
ont
Ford
Cro
ws
Land
ing
Pat
ters
on
Maz
e
Airp
ort
SE Grassland East West NE S. Delta
Drinking Water Specific Conductivity NA Total Organic Carbon Trace Elements T. Arsenic T. Arsenic 4 E. coli Nutrients3 Nitrate Nitrate Nitrate
Aquatic Life pH Temperature Dissolved Oxygen Turbidity NA NA NA NA NA NA NA Trace Elements T. Copper T. Copper 5 Minerals Water Column Toxicity 7 1 2
Irrigation Water Supply Specific Conductivity Minerals
Recreation (Swimming) E. coli =One or more result above a goal or objective NA = There is no goal or objective applicable to the location 1Only had three samples taken with no toxic event found 2 Only had one sample taken with no toxic event found 3 Found for Nitrate only 4 total arsenic, total chromium, total lead, total nickel and total mercury results were found above drinking water goals 5 total and dissolved copper, total lead, and total zinc were found above aquatic life goals 6 total and dissolved copper were found above aquatic life goals 7 no samples were taken
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13.0 SUMMARY/CONCLUSION In general the SJR receives drainage from a variety of diverse basins. For example, the Grassland Ba-sin is a highly managed system that is dominated by agricultural influences (both traditional cropland and managed wetlands) and receives water from the Sacramento-San Joaquin Delta to support the land use. The Northeast Basin contains the Cosumnes watershed which drains snowmelt from the Si-erras and is the last major water body within the Central Valley that does not have flow regulated by a major reservoir. Most of the drainage basin sites are within the valley floor which is dominated by agri-cultural use and urban development. Even though the land uses are similar for most of the drainage basin sites, the source water from their upper watersheds are completely different across the basins and create a truly unique and complex system. The spatial trend for most constituents (SC, TSS, turbidity, metals, and minerals) within the SJR is that concentrations seem to increase from Sack Dam to Hills Ferry, as a result of the Grassland influences, and decrease from Hills Ferry down to Vernalis due to the Eastside Basin river sites contribution of high flow Sierra snow melt and reservoir storage flows. Other constituents displayed strong seasonal trends that were consistent throughout the whole SJR valley floor. For instance, temperature increased at all sites during the warm summer months. Dis-solved oxygen concentrations decreased at all sites during the warmer summer months, which may be offset by algal blooms as well as temperature, with a decrease in dramatic fluctuation within SJR sites during the wet WY of 2005. Specific conductivity, TOC, turbidity, and TSS were influenced by storm events, specifically for SC the first storm runoff, and the irrigation season. Findings by individual Basins included: Northeast Basin:
Northeast basin had the lowest levels for most constituents compared to the rest of the SJR ba-sin. All of the four samples collected for acute algae at Cosumnes River had a reduction of cell growth. This reduction could be due to the minimal nutrients and minerals found in the Cosum-nes River watershed, but a toxicity identification evaluation was not conducted.
Eastside Basin:
The Eastside Basin river sites (Merced, Tuolumne and Stanislaus) typically followed the North-east basin with low levels for most constituents compared to the rest of the basins. In contrast, the Harding Drain reported the elevated levels of SC, E. coli, nutrients, BOD and min-erals. Harding Drain also had dramatic fluctuations of DO.
Southeast Basin:
Deep Slough had high year round levels of arsenic and total nickel which was unique for the en-tire SJR Basin and had the majority of detected samples during high flow events.
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South Delta Basin:
New Jerusalem Tile Drain, which represents shallow ground water within the South Delta Basin, had higher temperature, SC, nitrate levels, and minerals compared to the rest of the South Delta Basin. The New Jerusalem Drain, even with its high nitrate concentrations, had very low TSS and TOC concentrations with the BOD typically just above the detection limit of 0.1 mg/L--unlike the rest of the South Delta Basin. The New Jerusalem Drain had non-detect values for most of the metals except high concentrations of chromium.
Tom Payne Slough had a consistent seasonal fluctuation of minerals. High concentrations of minerals are seen during the winter months with a drastic drop in mineral concentrations during the summer months.
Westside Basin:
The Westside Basin sites on average had greater turbidity and TSS than the remainder of the SJR Basin sites with concentrations fluctuating greatly during the irrigation season and storm events. The Westside Basin also had relatively higher concentrations of nutrients and minerals than other basin sites. The Westside Basin had a high volume of detected values for total lead and had overall higher concentrations and major spikes of copper, zinc, and chromium.
Grassland Basin:
The Grassland Basin was sampled more frequently for every site other than those on the main stem of the SJR due to the compliance monitoring program for the Grassland Bypass Project (se-lenium control program). For all sites within the Grassland Basin, other than for Salt Slough, there is a clear seasonal fluctuation for pH. The pH tends to peak in July and drop to its lowest around January mirroring the temperature results. The Grassland Basin has high levels of SC, TSS, and minerals compared to the eastern basins. Salt Slough, having a total of three algal toxicity samples collected, had two toxic events for the increase in growth for acute algae and one toxic event for a reduction in algal growth. Of the se-venteen samples within Salt Slough collected for acute fathead minnow and acute Ceriodaphnia dubia, no toxic events were found.
When evaluated against the water quality objectives and goals found in Appendix Q1 and Q2 there are multiple areas of concern within the SJR Basin. Drinking Water/Municipal Supply: High TOC levels throughout the SJR valley are elevated above guidelines for the delta intended to pro-tect drinking water.
95
Aquatic life: Elevated temperatures throughout the basin were a concern during the spring and fall. Total copper had high occurrences in French Camp Slough, Lone Tree Creek, and Pixley Slough. Turbidity was a concern within the Westside Basin, but a more applicable Basin Plan objective is needed to determine potential for impairment. Irrigation Water Supply: When compared against the Water Quality Goal for Agriculture of 700 umhos/cm, large areas of the basin appear to be elevated above optimal irrigation water quality guidelines for specific conductance. Salt is an overwhelming ongoing concern for most of the SJR Basin particularly the Grasslands and Westside basin. Recreation: E. coli had occasional spikes during the summer months when most of the waterways have a potential for recreational use. A majority of the sites with high percentages of samples exceeding the conserva-tive level percentages may need further evaluation to determine actual level of potential recreational use. 14.0 FUTURE ACTIVITIES While information collected during this study was utilized to help fine tune the monitoring programs for the Northeast, Eastside and Westside Sub-basins during the rotational portion of the overall effort, after WY 2005 the SJR SWAMP effort was not able to continue the Drainage Basin or Intensive Rotational Basin sites due to funding reductions. Since 2005, the SJR SWAMP sampling has been limited to maintaining the water quality monitoring for the multi-agency Grassland Bypass Project (GBP), with ad-dition of E. coli analyses twice a month at the GBP sites. Since 2003, expanded monitoring of agricultural drainage inflows to the SJR have been conducted by various Agricultural Coalition Groups as part of the Irrigated Lands Regulatory Program (ILRP). SWAMP is providing resources to ensure ILRP water quality information is captured in the statewide SWAMP master database. To address the salt issue within the SJR Basin the Central Valley Water Board formed the Central Val-ley Salinity Alternatives for Long-Term Sustainability (CV-SALTS). This program is an effort to address the salinity problems within the Central Valley and will adopt long-term solutions to improve water qual-ity and economic sustainability. The following website has up-to-date information about CV-SALTS: http://www.swrcb.ca.gov/centralvalley/water_issues/salinity/index.shtml . The Central Valley Water Board SWAMP effort has refocused limited resources on better identifying current monitoring efforts conducted by both internal programs (GBP, ILRP, NPDES receiving water requirements, TMDL, and others) and major external efforts (Department of Water Resources, US Bu-reau of Reclamation, US Geological Survey, University of California and watershed groups) through the development of a web-based surface water monitoring directory. The directory builds off of a pilot pro-ject with the San Francisco Estuary Institute (SFEI) begun by the US EPA within the San Joaquin River Basin, and has been expanded by the Central Valley Water Board SWAMP to include the entire Central
Valley (Sacramento, San Joaquin, and Tulare Basins and Delta). The web-based monitoring directory is designed to only display active monitoring efforts and to identify what is being monitored where, how frequently, for how long, and by which agency. While actual data is not captured, the directory will pro-vide links to any web based database and contact information for the monitoring program manager. Initial feeding of the directory has focused on multi-agency efforts within the Sacramento-San Joaquin Delta to help identify available water quality information in order to facilitate a more thorough evaluation of water quality. In addition, the directory has been beta-tested by loading information on the internal GBP, ILRP, NPDES, statewide SWAMP, and DWR Northern District efforts for the entire Central Val-ley. The directory can currently be viewed at the following website http://www.centralvalleymonitoring.org/. It is anticipated that beta testing will be complete and the di-rectory will be available for data entry from interested parties during late spring 2009. Central Valley SWAMP is also currently:
• Providing resources (staff and contract dollars) to facilitate development of a Regional Monitor-ing Program for the Sacramento-San Joaquin Delta.
• Supporting the Department of Water Resources staff to continue long-term trend monitoring at
41-sites in the northern Sacramento River Basin in exchange for the addition of selected con-stituents of concern identified through Central Valley Regional Board efforts (TOC, nutrients, and toxicity) and realignment of 11-sites to correspond with sites utilized by the statewide SWAMP sediment toxicity study.
• Developing a region-wide, long-term trend monitoring framework based on the 30-sites within
the Central Valley that are part of the state-wide SWAMP contaminant trend monitoring effort
• Development of the Central Valley Regional Board SWAMP website that documents monitoring activities supported by SWAMP and provides links to final reports and selected water quality data (http://www.waterboards.ca.gov/centralvalley/water_issues/water_quality_studies/surface_water_ambient_monitoring/index.shtml)
Efforts related specifically to the elevated E. coli concentrations found within the SJR Basin as well as in other areas of the Central Valley as part of ILRP monitoring, include:
o A survey of E. coli concentrations in local swimming holes before during and after a holiday weekend (coordinated with Central Valley watershed groups during both 2007 and 2008)
o A pilot bacteria source identification project with the University of California, Davis, in selected streams with a history of elevated E. coli concentrations
o Continued, seasonal E. coli monitoring at 30-major integrator sites throughout the Central Val-ley.
Recommendations for future monitoring for each sub-basin and river site include those parameters identified in Table 8. Data has been posted annually on our website since 2003 and utilized in combi-nation with other available data for assessment in the Clean Water Act Sections 305(b) and 303(d) In-tegrated Report for the Central Valley Region (CVRWQCB, 2009 Draft).
1. Bureau of Reclamation. 1995. Grassland Bypass Project. http://www.usbr.gov/mp/grassland/index.html (Accessed: April 16, 2009).
2. Cal Fed Bay-Delta Program (CFBDP). 2000. Water Quality Program Plan. 3-52, D-5.
3. California Code of Regulations. Register 2006, No 38. Title 22, Division 4, Chapter 15, Article 4, s 64431; Article 16, s 64449; Article 18, s 64468.1. Updated 9/22/06. http://ccr.oal.ca.gov/linkedslice/default.asp?SP=CCR-1000&Action=Welcome. Accessed 9/29/06.
4. Central Valley Regional Water Quality Control Board (CVRWQCB). 1998. Water Quality Control Plan (Basin Plan) for the Sacramento River and San Joaquin River Basins, Fourth Edition, Au-gust 2006.
5. Central Valley Regional Water Quality Control Board (CVRWQCB). 2009. The 2008 Update to
the 303(d) List and Development of the 2008 303(d)/305(b) Integrated Report. http://www.waterboards.ca.gov/centralvalley/water_issues/tmdl/impaired_waters_list/303d_list.shtml
dures Manual. Regional Water Quality Control Board, Central Valley Region Report
7. Chilcott, J., 1992. Consideration of Water Body Designations to Comply with Provisions of the Water Quality Control Plan for Inland Surface Waters of California (ISWP). Regional Water Quality Control Board, Central Valley Region Report
8. Dubrovsky, Neil M., Kratzer, Charles R., Brown, Larry R., Gronberg, Jo Ann M., Burow, Karen
R. 1998 Water Quality in the San Joaquin-Tulare Basins, California, 1992-1995. United States Geological Survey. Circular 1159. p. 5
9. DWR. 2001. Annual Land and Water Use Data: Irrigated Crop Area. State of California
http://www.landwateruse.water.ca.gov/annualdata/landuse/2001/landuselevels.cfm . (Accessed: April 2, 2009)
10. DWR. 2007. California Data Exchange Center (CDEC). Access to the Department of Water
Resources Operational Hydrologic Data http://cdec.water.ca.gov/
11. DWR. 2007. California Cooperative Snow Surveys. Chronological Reconstructed Sacramento and San Joaquin Valley Water Year Hydrologic Classification Indices. WSIHIST (11/30/04 1136). http://cdec.water.ca.gov/cgi-progs/iodir/WSIHIST
12. Graham, C., 2009. San Joaquin River Basin Rotational Sub-basin Monitoring: Consumnes,
Mokelumne, and Calaveras River Watersheds, January – December 2002. Regional Water Quality Control Board, Central Valley Region.
13. James, E. W., Westcot, D. W., & Gonzalez, J. L. 1989.The Water Diversion and Discharge
Points Along the San Joaquin River. Regional Water Quality Control Board, Central Valley Re-gion (CVRWQCB)
14. Marshack, J.B., 2003. A Compilation of Water Quality Goals. California Environmental Protec-tion Agency, Regional Water Quality Control Board, Central Valley Region. Sacramento, CA.
15. Morris, R.D., 1992. Chlorination, Chlorination By-products, and Cancer; A Meta-analysis. Amer-
ican Journal of Public Health. July 1992, Vol. 82, 955-963.
16. State Water Resources Control Board (SWRCB). 1995. Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary.
17. State Water Resources Control Board (SWRCB). 2002. Quality Assurance Program Plan for the
State of California’s Surface Water Ambient Monitoring Program “SWAMP”. Prepared by Puckett, Max. California Department of Fish and Game.
18. Steensen, R., Chilcott, J. E., Grober, L. F., Jensen, L. D., Eppinger, J. L., Burns, T..1998. Com-
pilation of Electrical Conductivity, Boron, and Selenium Water Quality Data for the Grassland Watershed and San Joaquin River. Regional Water Quality Control Board, Central Valley Re-gion.
19. U.S. Environmental Protection Agency. 1986. Ambient Water Quality Criteria for Bacteria. Bac-
teriological Ambient Water Quality Criteria for Marine and Fresh Recreational Waters.14-15.
20. U.S Environmental Protection Agency (USEPA). 2003. Elements of a State Water Monitoring and Assessment Program. Washington D.C.
21. Weston. Mason. 2009. Mountain House.
http://www.mountainhouse.net/town/community_planning.php (Accessed: April 16, 2009)
10/25/2001 2.7 <2 0.1 <1 6 0.6 0.811/29/2001 NA NA NA 0.1 NA 1.2 212/27/2001 NA NA 0.1 0.1 4.6 0.6 1.41/31/2002 NA 1.3 0.2 0.1 NA 1 1.62/28/2002 NA NA 0.1 0.1 3.5 0.6 1.23/28/2002 NA 0.4 0.1 0.1 3.5 0.8 1.24/24/2002 NA NA 0.2 0.1 4.1 0.9 1.55/30/2002 NA NA NA 0.1 4.7 0.7 0.96/20/2002 NA 0.4 NA 0.1 4 0.7 1.38/29/2002 NA 1 NA 0.1 4.5 0.8 1.39/26/2002 NA 0.3 0.1 0.1 5.7 0.8 1.4
10/31/2002 NA 0.1 0.1 0.1 3.7 0.3 0.5
7
A1: 541MAD007 – SJR @ Sack Dam continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
11/21/2002 NA 0.4 <0.05 <0.03 3.4 0.8 112/19/2002 NA 0.4 <0.05 <0.03 3.7 1.1 1.41/30/2003 NA 1.2 NA 0.1 3 1 1.5
Count 14 NA 23 NA 22 30 27 24 24Min 2.4 NA 0.1 NA 0.03 0.02 3.0 0.3 0.5Max 9.7 NA 1.3 NA 0.2 0.5 6.9 1.2 2.0Mean 4.8 NA 0.8 NA 0.1 0.3 4.8 0.8 1.3Geo Mean 4.3 NA 0.7 NA 0.1 0.2 4.6 0.8 1.3Median 3.9 NA 1.0 NA 0.1 0.5 4.6 0.8 1.4Quartile 1 3.1 NA 0.7 NA 0.1 0.1 4.1 0.7 1.2Quartile 3 5.7 NA 1.0 NA 0.2 0.5 5.3 0.9 1.5NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
Count 22 NA 21 NA 22 24 24 42 42Min 1.0 NA 0.5 NA 0.2 0.0 5.4 1.6 3.1Max 16.0 NA 3.9 NA 0.5 0.5 10.0 9.2 17.2Mean 3.8 NA 1.5 NA 0.3 0.5 8.1 5.6 9.9Geo Mean 2.3 NA 1.3 NA 0.3 0.4 8.0 5.0 8.8Median 1.0 NA 1.0 NA 0.3 0.5 8.3 6.2 10.0Quartile 1 1.0 NA 1.0 NA 0.2 0.5 7.1 3.1 5.5Quartile 3 6.8 NA 1.8 NA 0.4 0.5 8.8 8.1 14.3NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
A3: 541MER538 – SJR @ Fremont Ford Station Code:541MER538
Location: Latitude 37.30944, Longitude -120.92917
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/5/2000 9:40 AM 18.8 1380 6.310/12/2000 10:30 AM 15.7 897 7.310/19/2000 8:15 AM 16.2 1160 7.210/26/2000 11:30 AM 13.7 1390 7.511/2/2000 9:20 AM 14.2 654 6.311/9/2000 8:50 AM 12.1 1240 7.8
11/16/2000 9:55 AM 10.1 1570 7.411/21/2000 7:20 AM 8.8 1700 7.211/30/2000 9:45 AM 9.4 1750 7.412/7/2000 8:40 AM 9.3 1560 7.1
12/12/2000 8:30 AM 10.6 1530 7.412/21/2000 10:40 AM 8.9 1850 7.712/28/2000 11:10 AM 7.6 1910 7.21/4/2001 8:35 AM 7.5 2030 6.91/11/2001 10:30 AM 8.7 1300 7.61/18/2001 8:35 AM 6.2 1680 8.01/25/2001 12:05 PM 9.9 1850 7.32/1/2001 10:07 AM 8.1 1610 7.62/8/2001 9:20 AM 8.9 1720 7.62/15/2001 10:30 AM 9.7 1210 7.32/22/2001 12:40 PM 14.6 1620 7.83/1/2001 10:50 AM 12.7 1160 7.03/8/2001 9:00 AM 13.9 551 7.63/15/2001 10:35 AM 15.8 1370 7.53/22/2001 11:00 AM 19.3 1830 7.73/29/2001 11:30 AM 19.1 1680 8.14/5/2001 11:30 AM 15.7 1830 8.04/12/2001 9:15 AM 13.2 1510 6.94/19/2001 11:20 AM 16.8 2090 7.84/26/2001 9:48 AM 21.7 1230 7.45/3/2001 9:00 AM 17.5 2100 7.05/10/2001 10:36 AM 23.7 1440 7.65/17/2001 11:13 AM 22.4 1170 7.05/24/2001 12:30 PM 26.8 1690 6.85/31/2001 12:05 PM 27.5 1670 7.66/7/2001 11:20 AM 23.1 1390 7.9 7.06/14/2001 NA 22.2 1480 7.8 9.06/21/2001 11:13 AM 26.8 1220 7.8 8.46/28/2001 2:58 PM 26.0 1020 8.1 6.9
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A3: 541MER538 – SJR @ Fremont Ford continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
7/5/2001 8:18 AM 25.3 1550 7.6 6.17/11/2001 10:26 AM 24.6 1180 7.7 7.97/19/2001 10:34 AM 23.7 1180 7.8 9.37/26/2001 10:08 AM 24.7 1230 7.7 7.78/2/2001 8:44 AM 26.6 1050 7.6 6.38/9/2001 10:38 AM 26.4 1320 7.7 7.38/16/2001 9:32 AM 23.3 1170 7.7 6.88/23/2001 10:36 AM 22.2 1100 7.7 8.58/30/2001 8:46 AM 22.2 1580 7.4 6.49/6/2001 10:21 AM 21.8 1890 7.6 8.09/13/2001 11:48 AM 22.2 2020 7.8 7.59/20/2001 11:08 AM 22.1 2130 7.8 7.59/27/2001 12:22 PM 21.8 2180 7.7 8.410/4/2001 8:00 AM 20.7 2190 7.5 7.2
10/11/2001 8:39 AM 16.8 1360 7.8 7.810/18/2001 8:30 AM 18.1 1250 7.7 7.410/25/2001 8:35 AM 14.2 1800 7.7 8.511/1/2001 8:50 AM 15.7 1760 7.8 8.611/8/2001 8:23 AM 13.7 1440 7.7 8.8
11/15/2001 8:50 AM 15.4 1240 8.1 8.011/20/2001 10:32 AM 13.6 1640 7.7 8.611/29/2001 9:25 AM 9.6 1790 7.6 10.212/6/2001 11:00 AM 10.2 1320 7.4 10.6
12/13/2001 8:38 AM 8.6 2110 7.7 10.212/20/2001 9:47 AM 9.7 2690 7.8 10.412/27/2001 1:00 PM 10.6 2430 7.7 7.51/3/2002 8:35 AM 12.7 583 7.6 8.11/10/2002 11:04 AM 11.7 1000 8.0 9.81/17/2002 10:42 AM 8.0 1540 7.6 10.91/24/2002 11:49 AM 7.7 1890 7.3 11.41/31/2002 10:30 AM 7.0 1760 7.7 12.52/7/2002 10:18 AM 10.5 1760 7.4 11.32/14/2002 10:47 AM 11.5 1740 7.8 9.82/21/2002 11:47 AM 14.3 1390 7.3 9.42/28/2002 2:29 PM 16.8 1650 7.8 11.43/7/2002 9:48 AM 14.8 1650 7.6 9.03/14/2002 11:10 AM 13.3 1850 7.43/21/2002 11:01 AM 14.9 1760 7.3 9.13/28/2002 2:00 PM 19.5 2730 7.8 15.54/4/2002 10:13 AM 18.9 1930 7.9 8.34/11/2002 9:32 AM 18.6 NA 7.2 NA
39
A3: 541MER538 – SJR @ Fremont Ford continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
4/18/2002 9:30 AM 15.4 1990 7.8 8.94/25/2002 10:04 AM 19.5 2080 7.8 8.05/2/2002 9:37 AM 17.2 2000 7.3 10.45/9/2002 INA INA INA INA INA5/16/2002 8:42 AM 20.6 2330 7.8 6.9 74.15/23/2002 6:30 AM 16.9 1240 7.6 NA5/30/2002 11:57 AM 26.3 1950 7.8 7.66/6/2002 9:44 AM 24.7 1420 7.9 NA6/13/2002 10:34 AM 23.3 1340 7.2 NA6/20/2002 11:55 AM 25.0 1460 7.9 8.2 93.96/27/2002 8:57 AM 24.2 1110 7.7 6.07/3/2002 9:25 AM 25.1 1160 7.9 NA7/11/2002 11:25 AM 27.2 1300 7.9 NA7/18/2002 8:30 AM 23.5 1260 7.8 6.4 1097/25/2002 9:46 AM 23.9 1100 7.8 6.48/1/2002 10:51 AM 24.8 980 7.8 6.88/8/2002 9:23 AM 21.9 1160 7.8 6.98/15/2002 10:15 AM 24.4 1160 7.9 7.38/22/2002 10:05 AM 21.9 1200 7.8 8.08/29/2002 12:25 PM 24.3 1460 8.0 9.3 75.09/5/2002 9:50 AM 21.2 1250 7.8 7.59/12/2002 10:10 AM 21.8 1490 7.5 8.49/19/2002 8:18 AM 20.7 1820 7.8 6.5 NA9/26/2002 11:53 AM 21.9 1490 8.0 8.810/3/2002 8:39 AM 13.6 1550 7.8 9.9
10/10/2002 10:35 AM 19.6 1960 7.8 7.710/17/2002 12:25 PM 17.1 1470 7.8 9.0 96.810/24/2002 11:31 AM 15.2 1200 7.3 8.910/31/2002 9:08 AM 13.0 1450 7.4 8.8 96.611/7/2002 8:38 AM 13.3 1400 7.6 8.9
11/14/2002 10:51 AM 14.2 1210 7.5 8.311/21/2002 11:42 AM 12.8 1500 7.6 9.4 62.911/26/2002 10:55 AM 12.3 NA 7.7 9.312/5/2002 8:34 AM 10.3 1650 7.7 10.2 60.0
12/12/2002 8:40 AM 11.2 1850 7.6 10.212/19/2002 12:28 PM 9.8 713 7.5 7.7 12012/24/2002 11:04 AM 8.2 1000 6.9 12.51/2/2003 10:51 AM 9.8 1210 7.7 14.01/9/2003 9:38 AM 9.9 1780 7.9 11.21/16/2003 12:49 PM 11.5 1330 7.8 10.8 57.11/23/2003 9:40 AM 11.0 1810 7.2 14.2
40
A3: 541MER538 – SJR @ Fremont Ford continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
1/30/2003 8:41 AM 12.8 2070 7.4 9.5 68.32/6/2003 9:28 AM 9.4 2450 7.7 11.22/13/2003 10:37 AM 12.3 2420 7.7 10.4 34.32/20/2003 10:30 AM 11.2 1470 7.9 11.0 96.42/27/2003 9:57 AM 13.1 1490 7.8 8.83/6/2003 11:44 AM 14.5 1680 7.9 11.7 NA3/13/2003 11:15 AM 17.5 1650 7.6 10.2 36.83/20/2003 9:45 AM 15.1 1780 7.5 9.3 46.63/27/2003 1:56 PM 17.6 1890 7.9 13.3 61.84/3/2003 12:12 PM 16.0 2020 7.3 8.8 52.34/10/2003 11:10 AM 19.2 2170 7.7 10.2 68.24/17/2003 10:07 AM 16.7 1780 7.5 8.7 60.74/24/2003 11:08 AM 17.3 2090 7.8 4.9 12.35/1/2003 10:30 AM 17.9 1910 7.6 8.0 NA5/8/2003 9:44 AM 16.8 1920 7.2 8.5 48.35/15/2003 10:11 AM 19.4 2460 7.7 10.15/22/2003 11:06 AM 23.6 1520 7.7 7.0 66.95/29/2003 8:35 AM 24.9 1440 7.7 6.86/5/2003 11:11 AM 25.2 1440 7.9 7.3 1376/12/2003 9:05 AM 20.7 1570 7.6 7.0 94.26/19/2003 11:08 AM 23.5 1550 7.9 6.4 98.16/26/2003 10:35 AM 24.1 1060 7.7 6.9 1147/3/2003 10:32 AM 24.5 1070 7.8 10.17/10/2003 10:24 AM 24.8 1180 7.8 7.77/17/2003 10:37 AM 26.8 1090 7.6 1.67/24/2003 10:14 AM 27.0 1080 7.8 6.9 NA7/31/2003 10:38 AM 26.1 1060 7.6 4.9 98.88/7/2003 10:03 AM 23.6 901 7.8 6.7 1368/14/2003 10:17 AM 23.3 1270 7.7 7.78/21/2003 9:51 AM 24.2 940 7.8 7.6 91.08/28/2003 10:26 AM 23.9 995 8.1 7.3 1769/4/2003 10:04 AM 24.6 1510 7.9 7.4 61.89/11/2003 12:29 PM 23.1 1680 8.1 10.0 39.29/18/2003 10:52 AM 19.0 2200 7.9 8.7 38.79/25/2003 11:10 AM 21.3 1690 8.0 9.2 63.010/2/2003 10:58 AM 19.7 1570 7.8 9.0 78.110/9/2003 10:19 AM 19.5 1240 7.6 10.5 100
10/16/2003 12:27 PM 17.9 1350 7.9 9.7 74.310/23/2003 11:34 AM 18.9 1350 7.8 8.8 12410/30/2003 9:52 AM 15.2 1560 7.5 10.1 80.211/6/2003 10:40 AM 13.2 1300 7.9 10.7 100
11/13/2003 9:25 AM 12.8 1580 7.7 9.1 59.8
41
A3: 541MER538 – SJR @ Fremont Ford continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
11/20/2003 10:14 AM 13.4 1480 7.3 4.3 NA11/26/2003 9:28 AM 7.8 1560 7.8 11.3 4012/4/2003 10:05 AM 12.1 2000 8.0 11.3
12/11/2003 9:37 AM 11.3 2210 7.5 6.7 NA12/18/2003 10:27 AM 8.9 1780 8.2 10.8 NA12/23/2003 10:05 AM 10.9 1840 7.6 14.2 NA12/30/2003 10:45 AM 8.5 1520 7.6 12.7 NA1/8/2004 9:09 AM 8.4 1370 7.4 9.2 NA1/15/2004 10:39 AM 9.8 1730 7.8 9.3 NA1/22/2004 10:05 AM 9.3 1890 7.9 16.3 69.11/29/2004 10:51 AM 10.8 1880 7.8 11.4 NA2/5/2004 9:53 AM 9.9 1510 7.4 17.4 71.82/12/2004 10:06 AM 10.6 1900 7.5 12.5 NA2/19/2004 9:45 AM 12.4 1610 7.6 8.7 NA2/26/2004 10:29 AM 12.4 1300 7.5 9.0 NA3/4/2004 9:57 AM 12.5 1010 8.1 9.1 50.03/11/2004 10:37 AM 17.6 1490 7.9 8.3 NA3/18/2004 9:12 AM 19.1 1960 7.7 11.53/25/2004 11:00 AM 18.3 1910 8.0 9.7 53.04/1/2004 10:15 AM 16.3 2250 8.0 9.64/8/2004 10:38 AM 18.2 2110 7.8 8.1 65.04/15/2004 10:29 AM 17.9 2380 8.0 9.2 67.04/22/2004 10:44 AM 16.9 1930 7.9 11.0 96.14/29/2004 11:57 AM 19.2 2530 8.1 NA 36.35/6/2004 11:24 AM 22.9 1620 7.7 12.5 68.15/13/2004 11:06 AM 20.5 1560 7.8 18.5 54.55/20/2004 10:46 AM 20.9 1570 7.5 8.5 67.55/27/2004 10:15 AM 22.7 2150 7.8 NA NA6/3/2004 11:08 AM 24.4 1560 8.0 8.2 72.56/10/2004 10:54 AM 21.2 1040 7.9 8.3 1406/17/2004 11:30 AM 25.0 1390 7.9 8.2 79.26/24/2004 10:39 AM 23.7 1370 7.9 7.9 NA7/1/2004 10:36 AM 23.3 1510 7.5 9.9 NA7/8/2004 10:28 AM 24.8 1310 7.5 8.0 NA7/15/2004 10:49 AM 24.8 833 7.5 5.3 NA7/22/2004 10:14 AM 26.5 1130 7.9 8.4 NA7/29/2004 10:22 AM 24.8 1390 8.1 4.4 NA8/5/2004 9:52 AM 23.8 987 7.9 7.1 NA8/12/2004 10:43 AM 25.9 1210 8.1 8.1 NA8/19/2004 10:25 AM 25.5 1110 7.9 7.7 NA
42
A3: 541MER538 – SJR @ Fremont Ford continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
8/26/2004 10:49 AM 23.3 1250 8.2 7.5 NA9/2/2004 10:14 AM 23.6 2050 7.5 7.6 NA9/9/2004 9:21 AM 23.1 1340 7.9 7.8 NA9/16/2004 10:02 AM 20.8 1310 7.8 7.5 NA9/23/2004 1:30 PM 22.4 1510 8.0 11.5 NA9/30/2004 10:40 AM 18.8 1660 7.9 8.6 NA10/7/2004 10:11 AM 19.3 1710 7.6 9.2
10/14/2004 9:41 AM 18.4 1500 7.4 3.010/21/2004 11:13 AM 15.6 938 NA 8.510/28/2004 10:07 AM 12.6 1080 7.8 11.611/4/2004 11:48 AM 12.8 1290 7.9 9.5
11/11/2004 9:44 AM 14.2 1450 7.2 8.211/18/2004 10:03 AM 13.5 1120 7.7 8.111/23/2004 10:35 AM 9.2 1310 7.8 10.312/2/2004 11:13 AM 7.3 1750 7.6 12.412/9/2004 9:52 AM 10.8 1740 7.9 10.9
12/16/2004 10:53 AM 11.0 1110 7.4 10.512/22/2004 12:43 PM 9.1 1610 7.9 10.812/29/2004 9:19 AM 9.5 1850 7.8 9.91/6/2005 9:07 AM 8.6 344 7.5 9.61/13/2005 11:03 AM 9.3 179 7.6 9.11/20/2005 10:22 AM 8.5 579 7.2 8.71/27/2005 10:14 AM 10.9 1170 7.3 10.32/3/2005 10:50 AM 10.9 954 7.2 8.52/10/2005 10:14 AM 12.6 1410 7.7 9.82/17/2005 10:41 AM 14.1 762 7.5 10.12/24/2005 10:38 AM 14.7 853 7.1 8.13/3/2005 9:35 AM 15.4 866 7.2 9.43/10/2005 11:49 AM 18.9 1350 7.9 9.93/17/2005 9:40 AM 16.5 1670 7.3 13.83/24/2005 10:30 AM 14.7 350 7.2 8.83/31/2005 10:11 AM 14.7 564 7.2 10.04/7/2005 10:50 AM 18.0 1170 7.0 8.04/14/2005 9:44 AM 15.6 1160 7.2 11.04/21/2005 10:31 AM 17.8 1580 7.3 11.24/28/2005 9:57 AM 18.4 1500 7.0 13.55/5/2005 10:54 AM 20.6 1350 7.2 9.05/12/2005 9:58 AM 19.9 551 7.2 7.8
43
A3: 541MER538 – SJR @ Fremont Ford continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
5/19/2005 10:44 AM 20.9 171 7.0 6.55/26/2005 10:56 AM INA INA INA INA6/2/2005 INA INA INA INA INA6/9/2005 9:25 AM INA INA INA INA6/16/2005 10:26 AM 24.0 539 7.0 6.96/23/2005 11:15 AM 23.9 864 NA 7.56/30/2005 11:35 AM 25.9 394 7.3 8.47/7/2005 10:07 AM 25.6 1050 7.0 8.47/13/2005 9:30 AM 27.4 947 7.7 8.17/21/2005 9:50 AM 27.0 1220 7.8 7.47/28/2005 11:52 AM 27.2 1310 7.8 7.48/4/2005 10:03 AM 26.4 1120 7.7 7.48/11/2005 11:44 AM 26.5 1010 7.9 7.88/18/2005 10:35 AM 24.9 972 8.0 7.18/25/2005 10:39 AM 24.3 946 7.5 7.89/1/2005 10:09 AM 23.2 1010 7.9 10.29/8/2005 10:33 AM 22.4 1040 7.2 8.69/15/2005 10:13 AM 19.8 970 7.3 8.99/21/2005 8:29 AM 20.5 933 7.9 7.99/22/2005 11:15 AM 22.1 771 7.1 8.69/29/2005 10:14 AM 20.5 1090 7.4 7.8
180 22 2420 2420n 72 7.9 NA NA Mean 65 7.1 2321 101ian 66 7.6 2420 83rtile 1 50 5.3 2420 60rtile 3 90 9.9 2420 124E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
10/25/2001 1.6 3.711/29/2001 NA NA NA 0.1 NA 1.9 3.512/13/2001 1.4 2.812/27/2001 NA NA 0.1 <0.03 5.1 1.6 3.21/17/2002 1.3 2.51/31/2002 NA NA 0.2 NA NA 2.1 3.4
51
A3: 541MER538 – SJR @ Fremont Ford continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
2/14/2002 NA 0.9 0.2 0.1 7 2 3.32/28/2002 NA NA 0.2 0.1 6.1 2.2 3.73/14/2002 NA NA NA 0.1 5.8 3.4 5.33/28/2002 NA 1.1 0.2 0.1 6.6 3.9 6.14/11/2002 NA 0.7 0.2 NA 8.94/25/2002 NA NA 0.3 NA 9.9 3 4.75/16/2002 NA NA NA 0.1 9.2 2.8 55/30/2002 NA NA NA 0.2 9.8 2.6 4.46/13/2002 12 NA 0.3 0.1 7.8 2.8 5.36/20/2002 NA 1.2 NA 0.1 9.1 2.5 4.77/18/2002 6 <2.0 NA 0.2 9.17/25/2002 6.2 <2.0 0.3 0.2 8.58/15/2002 4.2 <2.0 0.3 0.2 8.28/29/2002 NA 1 NA 0.2 6.7 2.5 4.49/26/2002 NA 0.6 0.2 0.1 7.4 2.8 5.1
10/31/2002 NA 0.8 0.2 0.1 5.6 2 3.411/21/2002 NA 1.1 0.1 NA 3.3 2 3.612/19/2002 NA 1.8 0.2 0.1 5 4.6 6.71/30/2003 NA 0.5 0.2 0.1 4 1.9 2.93/13/2003 13 3 0.4 <1.0 8.83/27/2003 8.1 1.5 0.3 <1.0 8.64/10/2003 5.5 1.8 0.4 <1.0 9.74/24/2003 3.6 <2.0 0.1 <1.0 105/15/2003 2.9 <2.0 0.2 <1.0 125/29/2003 3.5 <2.0 NA <1.0 9.36/12/2003 5.3 <2.0 0.4 <1.0 106/26/2003 9.7 <2.0 NA <1.0 7.6
4/28/2005 1 1.5 0.3 NA 0.45/12/2005 0.7 NA NA 0.3 0.26/16/2005 NA 0.7 NA NA NA6/30/2005 0.7 0.6 0.1 0.2 0.17/13/2005 1.4 0.9 NA NA 0.29/29/2005 0.4 0.9 NA NA 0.2
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
A3: 541MER538 – SJR @ Fremont Ford continued…
Date Result Control Result Control
Result (million/m
l)
Control (million/
ml) MDD(%)3/27/2003 100 100 100 100 4.74 1.73 N/A
Count 1 1 1 1 1 1 N/A
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to
61
A4: 541STC512 – SJR @ Hills Ferry Station Code:541STC512
Location: Latitude 37.3425, Longitude -120.97722
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/26/2000 12:30 PM 14.6 1280 7.511/30/2000 10:30 AM 10.2 1830 7.512/28/2000 12:10 PM 8.7 2050 7.61/25/2001 1:15 PM 10.3 2060 7.62/7/2001 10:23 AM 10.1 2170 6.62/22/2001 1:55 PM 15.1 2050 8.13/13/2001 11:35 AM 16.7 1700 7.43/29/2001 12:30 PM 20.5 2340 7.94/18/2001 11:20 AM 19.2 2450 7.74/26/2001 9:22 AM 21.2 1540 6.95/15/2001 11:45 AM 21.9 1620 6.95/30/2001 1:25 PM 26.6 2070 7.26/6/2001 10:15 AM 22.2 2060 7.9 6.26/13/2001 9:45 AM 21.0 2400 8.1 7.76/20/2001 9:45 AM 26.0 1800 7.8 6.96/27/2001 12:27 PM 23.6 1740 7.9 7.77/25/2001 12:49 PM 27.0 1690 8.2 9.68/14/2001 11:17 AM 23.0 1920 8.3 10.18/29/2001 1:13 PM 27.0 1950 8.2 3.99/26/2001 11:49 AM 21.4 1750 7.9 8.6
10/15/2002 9:14 AM 17.4 1910 7.4 7.8 NA10/30/2002 INA INA INA INA INA11/20/2002 11:49 AM 13.5 1660 7.8 9.412/18/2002 11:26 AM 10.6 1460 7.7 8.5 1501/14/2003 INA INA INA INA INA INA1/29/2003 12:05 PM 13.4 2140 7.7 8.5 57.9
62
A4: 541STC512 – SJR @ Hills Ferry continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
3/25/2003 10:27 AM 16.7 2300 7.7 9.5 88.64/24/2003 12:33 PM 17.5 2900 7.9 8.8 27.55/29/2003 11:27 AM 26.1 2160 7.8 7.4 1426/26/2003 11:06 AM 24.8 1850 8.1 8.2 1307/31/2003 11:52 AM 26.2 1550 7.8 5.9 1548/28/2003 11:35 AM 24.3 1490 7.9 8.0 1169/25/2003 11:45 AM 22.2 1550 7.9 8.8 64.8
10/30/2003 11:42 AM 16.7 1630 7.8 7.5 67.411/20/2003 12:11 PM 13.7 1610 7.8 9.1 44.31/29/2004 11:30 AM 11.4 2240 7.7 11.4 44.82/26/2004 11:28 AM 12.6 1500 7.8 9.7 NA3/11/2004 10:58 AM 18.2 1880 8.0 8.7 NA3/25/2004 11:37 AM 18.5 2390 8.0 8.9 56.24/15/2004 10:54 AM 18.7 3080 8.0 9.8 49.84/29/2004 12:25 PM 18.7 2780 8.2 NA 46.85/13/2004 11:29 AM 21.2 1830 8.0 NA 59.85/27/2004 10:38 AM 22.7 2140 8.0 NA NA6/10/2004 12:04 PM 22.2 1900 8.1 9.3 1946/24/2004 11:10 AM 24.3 1160 8.1 8.8 NA7/15/2004 11:21 AM 24.8 1830 8.1 10.67/29/2004 10:53 AM 25.4 1960 8.2 9.78/26/2004 11:16 AM 23.7 1160 8.2 8.89/30/2004 11:05 AM 19.5 2180 7.8 9.4
10/28/2004 10:27 AM 12.9 1150 7.7 10.311/18/2004 10:29 AM 13.5 1340 7.6 7.811/23/2004 11:48 AM 9.6 1580 7.4 11.812/22/2004 10:27 AM 8.7 1840 7.9 12.612/29/2004 11:05 AM 9.7 1820 7.5 10.91/20/2005 10:52 AM 8.6 821 7.4 8.61/27/2005 1:06 PM 11.4 1630 7.4 12.22/17/2005 11:59 AM 14.4 1330 7.7 11.22/24/2005 11:15 AM 14.9 1090 7.5 8.23/24/2005 10:59 AM 14.9 960 7.4 9.33/29/2005 1:16 PM 15.6 859 7.3 9.24/21/2005 10:54 AM 16.9 1620 7.8 10.34/28/2005 11:36 AM 18.0 1580 7.7 9.35/19/2005 10:55 AM 20.3 307 7.2 7.25/26/2005 12:34 PM 22.8 220 7.3 5.26/23/2005 11:41 AM 23.0 993 NA 8.86/30/2005 12:06 PM 26.1 520 7.7 8.27/21/2005 10:15 AM 27.8 1680 8.1 8.57/28/2005 11:34 AM 27.3 1820 7.7 8.7
63
A4: 541STC512 – SJR @ Hills Ferry continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
8/18/2005 11:00 AM 25.1 1420 8.0 7.58/25/2005 11:55 AM 25.0 1500 7.7 8.39/21/2005 8:45 AM 21.1 1190 7.8 7.79/22/2005 11:40 AM 23.0 1260 7.4 8.79/29/2005 11:58 AM 22.0 1490 7.0 8.0
10/24/2001 3.5 <2 0.4 <1 11 2.9 611/28/2001 NA 0.2 NA <0.03 11 1.8 3.512/26/2001 NA 0.7 0.2 0.1 6.2 1.8 3.41/30/2002 NA 1.3 0.2 0.1 13 1.7 2.72/27/2002 NA 1 0.3 0.1 NA 2.7 4.53/27/2002 NA 1.4 NA 0.1 7.7 4.2 74/30/2002 NA NA 0.2 0.1 NA 5.2 85/29/2002 NA 0.9 NA 0.2 11 3.6 6.26/19/2002 NA 1.4 0.2 NA 8.1 5.4 10.18/28/2002 NA 1.5 0.3 NA 7.1 3.9 89/25/2002 3 5.4
11/20/2002 NA 1.2 0.3 0.1 712/18/2002 NA 1.5 0.1 <0.03 5.4 2.3 4.31/29/2003 NA NA 0.2 0.2 5.6 2.2 3.6
67
A4: 541STC512 – SJR @ Hills Ferry continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 11 NA 21 NA 19 23 21 22 22Min 3.4 NA 0.2 NA 0.1 0.02 5.4 1.7 2.7Max 19.0 NA 2.6 NA 0.4 0.5 13.0 5.4 10.1Mean 9.3 NA 1.1 NA 0.3 0.3 9.4 3.1 5.6Geo Mean 8.0 NA 1.0 NA 0.2 0.2 9.1 2.9 5.2Median 9.6 NA 1.0 NA 0.3 0.5 10.0 2.9 5.4Quartile 1 5.0 NA 1.0 NA 0.2 0.1 7.7 2.2 3.8Quartile 3 13.0 NA 1.3 NA 0.3 0.5 11.0 3.9 6.9NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
11/15/2001 10:39 AM 15.8 855 7.8 8.211/20/2001 9:45 AM 14.2 965 7.8 8.511/29/2001 11:10 AM 12.7 960 7.4 NA12/6/2001 11:47 AM 10.5 1010 7.8 10.9
12/13/2001 11:26 AM 9.7 1170 7.6 10.712/20/2001 9:06 AM 9.7 1240 7.9 10.612/27/2001 10:56 AM 10.5 1180 7.8 11.01/3/2002 12:07 PM 13.0 650 7.7 8.91/10/2002 12:45 PM 12.5 1020 8.0 11.41/17/2002 11:20 AM 8.7 1420 7.8 11.01/24/2002 10:11 AM 7.6 1640 7.8 5.11/31/2002 9:20 AM 7.2 1560 8.4 12.22/7/2002 10:58 AM 10.6 1440 8.0 11.52/14/2002 11:37 AM 12.0 1640 7.9 9.72/21/2002 8:59 AM 14.3 1500 7.8 10.82/28/2002 12:01 PM 15.6 1700 7.9 9.53/7/2002 10:24 AM 15.3 1680 7.9 9.23/14/2002 12:11 PM 13.7 1820 8.1 10.13/21/2002 12:30 PM 15.6 1240 8.0 9.13/28/2002 3:00 PM 18.8 1830 8.0 10.64/4/2002 10:50 AM 19.1 1890 8.0 8.14/11/2002 12:31 PM 19.6 1680 8.0 9.0
78
A5: 535STC504 – SJR @ Crows Landing continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
4/18/2002 10:10 AM 16.1 1380 8.0 9.04/25/2002 9:09 AM 19.3 1120 7.9 8.05/2/2002 10:17 AM 16.1 752 7.9 10.55/9/2002 INA INA INA INA INA5/16/2002 NA NA NA NA NA NA5/23/2002 9:05 AM 18.0 1150 7.6 NA5/30/2002 10:46 AM 24.8 1330 7.9 8.66/6/2002 10:24 AM 24.9 1290 7.9 6.56/13/2002 9:34 AM 22.6 1450 7.8 NA6/20/2002 10:22 AM 24.1 1480 7.5 NA6/27/2002 11:42 AM 25.2 1320 8.2 9.77/3/2002 8:39 AM 24.7 1430 8.1 NA7/11/2002 10:34 AM 26.7 1550 8.1 NA7/18/2002 11:42 AM 23.9 1440 8.2 9.7 55.07/25/2002 10:43 AM 23.8 1220 8.0 7.67/30/2002 9:52 AM 23.5 1210 7.7 6.9 75.78/1/2002 11:27 AM 24.7 1240 8.0 8.58/8/2002 11:43 AM 22.8 1400 8.1 10.58/15/2002 10:51 AM 24.4 1630 8.1 8.58/22/2002 11:04 AM 22.3 1270 7.9 8.38/29/2002 10:23 AM 22.5 1370 8.0 NA9/5/2002 10:40 AM 21.7 1530 7.8 7.59/12/2002 10:41 AM 22.1 1300 7.8 7.79/19/2002 10:39 AM 21.5 1390 7.8 7.3 NA9/26/2002 9:59 AM 21.1 1260 7.7 8.010/3/2002 10:57 AM 15.2 1260 7.8 10.2
10/10/2002 9:39 AM 20.0 1320 7.8 7.510/17/2002 10:44 AM 16.8 890 7.9 8.4 55.410/24/2002 8:59 AM 15.0 563 7.5 8.610/31/2002 11:57 AM 14.1 911 7.8 8.0 36.911/7/2002 11:08 AM 13.8 1090 7.7 9.1
11/14/2002 11:22 AM 14.6 1000 7.6 8.511/21/2002 9:58 AM 12.9 1160 7.7 8.9 36.211/26/2002 9:11 AM 12.1 1280 7.7 9.712/5/2002 11:03 AM 10.8 1330 7.9 11.2 36.4
12/12/2002 10:26 AM 11.1 1370 7.4 11.712/19/2002 10:48 AM 9.7 1130 7.8 NA 75.012/24/2002 9:01 AM 8.3 959 7.4 10.81/2/2003 10:06 AM 9.7 1130 7.8 13.91/9/2003 11:26 AM 10.1 1530 7.9 12.2
79
A5: 535STC504 – SJR @ Crows Landing continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
1/16/2003 9:49 AM 11.3 1330 7.7 9.3 53.01/23/2003 10:15 AM 11.2 1600 7.6 13.41/30/2003 11:53 AM 13.1 1570 7.6 9.6 53.02/6/2003 8:39 AM 9.6 1650 7.8 10.32/13/2003 9:58 AM 11.7 1730 7.7 9.8 39.12/20/2003 9:06 AM 11.4 1560 7.8 10.5 68.52/27/2003 10:26 AM 13.9 1570 7.8 8.93/6/2003 1:17 PM 15.4 1700 7.8 12.2 NA3/13/2003 11:45 AM 18.1 1710 8.0 9.4 54.73/20/2003 11:05 AM 15.9 1860 8.0 9.3 42.93/27/2003 11:08 AM 16.4 1640 7.9 9.2 54.84/3/2003 10:42 AM 15.6 1730 7.4 8.8 52.24/10/2003 11:48 AM 19.3 1770 8.0 10.1 40.54/17/2003 11:38 AM 16.2 1050 7.8 9.4 33.24/24/2003 11:56 AM 16.7 1080 7.9 9.9 29.15/1/2003 11:26 AM 17.7 1070 7.9 9.6 NA5/8/2003 10:41 AM 15.9 580 7.5 8.0 28.05/15/2003 10:57 AM 19.3 1000 7.8 9.55/22/2003 12:38 PM 23.7 1340 7.9 10.5 12.35/29/2003 11:12 AM 25.7 1350 7.8 8.46/5/2003 12:34 PM 25.4 1370 8.0 8.9 73.76/12/2003 11:30 AM 22.6 1400 7.9 9.6 75.36/19/2003 12:21 PM 24.4 1540 8.2 7.2 74.66/26/2003 11:36 AM 24.7 1280 8.0 8.5 91.27/3/2003 11:06 AM 23.9 1390 8.1 13.47/10/2003 11:12 AM 25.0 1370 8.1 10.07/17/2003 11:10 AM 25.8 1360 8.0 8.17/24/2003 11:13 AM 26.4 1350 7.9 7.4 2737/31/2003 11:50 AM 25.3 1250 7.9 7.8 1058/7/2003 11:11 AM 23.5 1230 8.2 9.2 73.58/14/2003 10:46 AM 23.2 1460 8.2 9.38/21/2003 10:43 AM 24.3 1450 7.9 7.8 51.08/28/2003 11:15 AM 23.1 1300 7.9 8.3 75.09/4/2003 10:35 AM 24.6 1390 8.0 7.2 64.39/11/2003 1:35 PM 23.2 1310 8.0 9.4 41.29/18/2003 11:31 AM 19.3 1450 7.8 8.9 35.59/25/2003 12:12 PM 21.8 1180 8.0 8.9 46.110/2/2003 11:33 AM 20.2 1110 7.8 8.1 47.910/9/2003 11:21 AM 20.2 1060 7.7 8.6 53.8
120.0 15.0 2420 2420n 46.9 6.3 NA NA Mean 44.0 5.6 2420 111ian 44.0 5.8 2420 93rtile 1 35.0 3.9 2420 60rtile 3 56.0 8.2 2420 142E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
10/25/2001 0.9 2.111/29/2001 NA NA NA 0.1 7.3 1.1 2.112/13/2001 0.9 1.712/27/2001 NA 0.4 0.1 0.1 3.7 0.7 1.61/17/2002 0.7 1.5
90
A5: 535STC504 – SJR @ Crows Landing continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
1/31/2002 NA NA 0.2 NA NA 1.5 2.32/14/2002 NA 0.8 0.1 0.1 6.6 1.6 2.82/28/2002 NA NA NA 0.1 NA 1.6 2.63/14/2002 NA NA NA 0.1 5.4 2.7 4.53/28/2002 NA 1.1 0.2 0.1 64/11/2002 NA 0.6 0.2 0.1 6.34/25/2002 NA NA 0.2 NA 5.3 1.9 3.45/16/2002 NA NA NA 0.1 3.8 1.4 2.55/30/2002 NA NA NA 0.1 NA 3 4.96/13/2002 17 NA 0.2 <1.0 6.8 2.9 5.76/20/2002 NA 1.2 0.2 0.1 5.9 3.6 6.67/18/2002 23 <2.0 NA 0.1 7.67/25/2002 11 <2.0 0.3 <1.0 7.38/15/2002 11 <2.0 0.2 <1.0 7.78/29/2002 NA 1.1 0.3 0.1 5.8 3.3 6.29/26/2002 NA 0.6 NA 0.1 6.8 1.9 3.3
4/28/2005 1.3 0.6 0.1 NA 0.15/12/2005 0.9 NA NA 0.2 0.15/26/2005 0.2 0.5 0.1 0.2 0.16/16/2005 NA 0.3 NA NA NA6/30/2005 1 0.5 0.1 0.2 0.17/13/2005 1.2 0.6 NA NA 0.19/29/2005 1.5 0.5 NA NA 0.1
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
n 46 6.6 NA NA Mean 42 5.8 2420 129ian 42 5.8 2420 114rtile 1 34 4.1 2420 7
MeaGeoMedQua 5QuaNOT
NA =INA =DRY
rtile 3 54 8.4 2420 162E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
rtile 1 35 3.0 2420 47rtile 3 54 6.4 2420 156E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
A7: 541STC510 – SJR @ Maze continued…
Date Result Control Result Control
Result (million/m
l)
Control (million/
ml)MDD (%)
10/26/2000 95 100 NA NA
Count 1 1 N/A N/A N/A N/A N/A
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
147
A8: 541SJC501 – SJR @ Airport Way Station Code:541SJC501
Location: Latitude 37.67556, Longitude -121.264167
rtile 1 33 2.8 2420 38rtile 3 52 5.2 2420 151E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
10/25/2001 0.7 1.811/29/2001 NA NA NA 0.1 5.2 0.8 1.312/13/2001 0.8 1.6
161
A8: 541SJC501 – SJR @ Airport Way continued…
DateNitrate (mg/L)
Nitrate (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
12/27/2001 NA 0.5 0.2 0.1 4.3 1.1 2.11/17/2002 1.0 1.81/31/2002 NA NA 0.2 NA NA 1.1 1.92/14/2002 1.4 2.52/28/2002 NA NA NA 0.1 NA 1.5 2.63/14/2002 2.0 3.34/25/2002 NA NA 0.2 NA 3.1 1.1 2.05/16/2002 0.9 1.65/30/2002 NA NA NA 0.1 NA 1.7 2.66/13/2002 7.1 NA 0.2 <1.0 4.2 2.5 4.96/20/2002 NA 0.7 0.2 0.1 4 4.1 7.68/29/2002 NA 0.8 <0.05 <0.03 5 5.1 8.59/26/2002 NA 0.6 NA 0.2 4.7 2.1 3.8
10/31/2002 NA 0.2 0.2 0.2 2.7 1.0 1.611/21/2002 NA 0.9 0.2 0.2 3.7 1.1 1.912/19/2002 NA 1.9 0.4 <0.03 6.7 4.6 6.61/30/2003 NA 0.7 0.2 0.2 2.7 1.1 1.72/27/2003 12 1.9 0.1 <1.0 6.4
Count 23 NA 30 1 31 33 33 41 41Min 3.8 NA 0.2 0.5 0.03 0.0 2.4 0.7 1.3Max 12.0 NA 1.9 0.5 0.4 0.5 6.7 5.1 8.5Mean 8.4 NA 0.9 0.5 0.2 0.4 4.6 1.7 3.0Geo Mean 8.1 NA 0.9 0.5 0.2 0.3 4.4 1.5 2.6Median 8.4 NA 1.0 0.5 0.2 0.5 4.6 1.4 2.3Quartile 1 7.6 NA 0.8 0.5 0.2 0.2 4.1 1.1 1.9Quartile 3 10.0 NA 1.0 0.5 0.2 0.5 5.2 1.9 3.3NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
APPENDIX B: NORTHEAST BASIN B1: 531SAC001 – Cosumnes River at Twin Cities Road…………………………….03-11 B2: 531SAC002 – Mokelumne River at New Hope Road……………………………12-23 B3: 531SJC507 – Pixley Slough at Davis Road………………………………………24-32 B4: 544SJC508 – Bear Creek at Thorton Road (J8)………………..………………..33-38 B5: 531SJC515 – Bear Creek at Lower Sacramento Road…………….……………39-46
2
B1: 531SAC001 – Cosumnes River at Twin Cities Road Station Code:531SAC001
Location: Latitude 38.29083, Longitude -121.37583
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 7:20 AM 12.6 98 6.211/28/2000 8:00 AM 9.5 125 6.612/27/2000 7:45 AM 5.9 133 6.81/23/2001 7:38 AM 8.0 145 8.92/20/2001 8:01 AM 10.9 135 6.83/27/2001 7:54 AM 15.9 153 6.44/24/2001 8:00 AM 18.9 145 6.75/29/2001 7:40 AM 19.2 113 6.06/26/2001 7:30 AM 20.8 427 7.0 NA7/24/2001 DRY DRY DRY DRY DRY8/28/2001 DRY DRY DRY DRY DRY9/25/2001 8:03 AM DRY DRY DRY DRY
10/23/2001 DRY DRY DRY DRY DRY11/27/2001 7:27 AM 8.6 97 8.5 11.112/26/2001 8:20 AM 9.2 141 6.6 NA1/29/2002 6:59 AM 5.2 161 7.8 13.72/26/2002 6:52 AM 10.4 89 8.1 14.13/26/2002 7:41 AM 10.9 113 7.8 10.84/23/2002 7:42 AM 15.9 74 7.8 9.85/28/2002 6:59 AM 20.2 64 8.1 9.16/18/2002 7:20 AM 22.0 73 7.5 7.97/31/2002 DRY DRY DRY DRY DRY DRY8/27/2002 8:20 AM DRY DRY DRY DRY9/24/2002 7:25 AM DRY DRY DRY DRY
10/29/2002 7:40 AM DRY DRY DRY DRY DRY11/19/2002 6:59 AM DRY DRY DRY DRY12/17/2002 11:30 AM 10.5 89 8.1 11.1 2481/28/2003 7:22 AM 10.8 82 7.9 11.5 13.03/25/2003 7:19 AM 13.6 109 7.6 10.5 31.04/22/2003 7:10 AM 14.3 76 7.9 10.0 18.15/27/2003 7:46 AM 19.3 46 7.7 9.2 14.26/24/2003 1:07 PM 24.8 69 8.1 11.3 3.27/29/2003 12:40 PM DRY DRY DRY DRY DRY8/26/2003 8:07 AM DRY DRY DRY DRY DRY9/23/2003 8:00 AM DRY DRY DRY DRY DRY
10/28/2003 8:15 AM DRY DRY DRY DRY DRY11/18/2003 7:45 AM DRY DRY DRY DRY DRY1/28/2004 7:16 AM 8.1 105 8.1 13.5 8.92/24/2004 8:17 AM 10.7 112 6.8 10.8 14.43/24/2004 7:10 AM 14.0 52 7.5 10.4 13.4
3
B1: 531SAC001 – Cosumnes River at Twin Cities Road continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
4/28/2004 7:06 AM 19.8 60 7.7 8.9 6.25/26/2004 7:45 AM 19.0 65 7.4 9.3 5.06/23/2004 7:12 AM DRY DRY DRY DRY DRY7/28/2004 7:30 AM DRY DRY DRY DRY DRY8/25/2004 7:15 AM DRY DRY DRY DRY DRY9/29/2004 7:30 AM DRY DRY DRY DRY DRY
10/27/2004 7:08 AM 12.8 98 8.6 12.011/22/2004 8:07 AM 6.7 107 9.3 12.112/28/2004 7:12 AM 8.2 119 8.3 12.01/26/2005 7:47 AM 9.1 99 8.1 11.52/23/2005 7:01 AM 10.6 91 7.9 NA3/29/2005 8:11 AM 11.5 95 6.8 10.64/26/2005 7:52 AM 13.4 67 8.3 11.35/24/2005 7:24 AM 16.7 47 8.2 9.86/28/2005 7:18 AM 21.5 65 7.1 8.57/26/2005 7:11 AM 24.9 88 8.1 7.98/23/2005 7:15 AM DRY DRY DRY DRY9/27/2005 7:47 AM DRY DRY DRY DRY
11/27/2001 NA NA NA <0.03 1.7 0.8 1.212/26/2001 0.5 1.01/29/2002 0.8 1.12/26/2002 0.5 0.53/26/2002 0.4 0.94/23/2002 0.4 0.55/28/2002 0.3 0.46/18/2002 0.4 0.6
12/17/2002 2.5 3.91/28/2003 0.3 0.4
Count 9 NA 9 NA 9 10 10 19 19Min 1.0 NA 1.0 NA 0.1 0.02 1.7 0.3 0.4Max 6.1 NA 1.0 NA 0.4 1.0 8.4 3.9 6.1Mean 2.4 NA 1.0 NA 0.3 0.5 3.6 1.1 1.8Geo Mean 1.8 NA 1.0 NA 0.3 0.4 3.3 0.8 1.3Median 1.0 NA 1.0 NA 0.3 0.5 3.3 0.6 1.0Quartile 1 1.0 NA 1.0 NA 0.3 0.5 2.9 0.5 0.8Quartile 3 3.6 NA 1.0 NA 0.4 0.5 3.8 1.4 2.7NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
7
B1: 531SAC001 – Cosumnes River at Twin Cities Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
11
B2: 531SAC002 – Mokelumne River at New Hope Road Station Code:544SAC002
Location: Latitude 38.23611, Longitude -121.41889
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 7:50 AM 12.4 49 6.911/28/2000 8:32 AM 11.4 45 7.412/27/2000 8:15 AM 7.4 44 7.31/23/2001 8:10 AM 9.2 44 10.12/20/2001 8:29 AM 11.0 44 7.43/27/2001 8:24 AM 14.1 46 7.24/24/2001 9:10 AM 16.8 48 7.15/29/2001 8:35 AM 18.3 47 6.96/26/2001 8:12 AM 21.5 54 7.7 6.77/24/2001 7:37 AM 24.4 66 7.7 6.68/28/2001 7:36 AM 24.1 53 7.4 6.99/25/2001 8:27 AM 19.4 64 7.0 8.8
10/23/2001 8:05 AM 15.6 52 7.4 9.111/27/2001 7:56 AM 10.2 55 8.2 10.112/26/2001 8:45 AM 10.1 55 7.3 NA1/29/2002 7:24 AM 7.0 53 7.9 12.42/26/2002 7:21 AM 11.8 52 8.6 13.43/26/2002 8:09 AM 12.8 52 8.6 9.54/23/2002 8:13 AM 16.3 52 7.6 8.75/28/2002 7:24 AM 18.4 71 7.9 10.46/18/2002 7:45 AM 19.0 50 7.6 8.17/31/2002 10:57 AM 23.2 63 7.7 7.4 2.68/27/2002 8:30 AM 21.4 62 NA NA9/24/2002 7:50 AM 22.0 62 6.9 6.6
10/29/2002 8:13 AM 13.0 53 7.8 9.6 3.311/19/2002 7:16 AM 12.3 53 8.4 10.012/17/2002 11:10 AM 11.4 56 8.3 10.4 16.01/28/2003 7:50 AM 11.5 48 8.1 11.0 13.03/25/2003 7:43 AM 13.9 47 7.8 9.5 8.14/22/2003 7:39 AM 14.1 46 7.6 8.8 8.15/27/2003 8:20 AM 18.1 44 7.4 8.7 30.06/24/2003 12:43 PM 16.6 44 7.5 13.1 8.07/29/2003 11:58 AM 19.1 45 7.9 9.2 5.88/26/2003 8:31 AM 21.7 48 7.7 7.8 4.49/23/2003 8:29 AM 21.9 54 7.4 7.6 12.3
10/28/2003 8:43 AM 16.1 49 7.4 9.1 4.711/18/2003 7:58 AM 13.8 47 7.5 10.1 14.01/28/2004 7:41 AM 9.6 45 8.2 13.1 42.02/24/2004 8:40 AM 11.5 47 7.7 10.3 13.2
12
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
3/24/2004 7:29 AM 14.2 47 7.5 9.8 11.44/28/2004 7:25 AM 16.9 48 7.6 9.5 8.25/26/2004 8:15 AM 16.2 46 7.4 9.5 7.06/23/2004 7:29 AM 19.2 47 7.6 8.9 NA7/28/2004 7:50 AM 24.1 84 8.7 8.6 NA8/25/2004 7:38 AM 22.1 64 8.3 6.8 NA9/29/2004 7:57 AM 19.1 104 8.0 6.9 NA
10/27/2004 7:36 AM 14.0 50 8.3 11.111/22/2004 8:41 AM 9.7 49 8.8 10.912/28/2004 7:49 AM 9.4 50 8.3 11.41/26/2005 8:15 AM 9.4 49 7.9 10.72/23/2005 7:25 AM 10.1 46 7.9 11.03/29/2005 8:45 AM 11.1 48 7.0 10.44/26/2005 8:22 AM 12.4 49 8.2 11.45/24/2005 7:51 AM 13.7 48 7.8 10.66/28/2005 7:43 AM 15.3 46 7.1 10.37/26/2005 7:39 AM 16.3 43 8.0 11.08/23/2005 7:42 AM 18.1 51 7.8 8.19/27/2005 8:14 AM 17.1 41 8.2 12.9
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
n 4 2.2 NA NA Mean 4 2 1498 79ian 3 1.7 2420 67rtile 1 3 1.5 114
MedQua 7 46
rtile Qua 3 6 2.9 2420 110E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable = Site was inaccessible = Site had no flow
NOT
NA =INADRY
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 12 NA 12 NA 10 13 13 24 24Min 0.5 NA 1.0 NA 0.1 0.02 0.5 0.1 0.2Max 1.0 NA 1.0 NA 0.1 0.5 1.5 1.2 1.9Mean 1.0 NA 1.0 NA 0.1 0.4 0.7 0.4 0.6Geo Mean 0.9 NA 1.0 NA 0.1 0.3 0.6 0.4 0.6Median 1.0 NA 1.0 NA 0.1 0.5 0.5 0.4 0.5Quartile 1 1.0 NA 1.0 NA 0.1 0.5 0.5 0.3 0.4Quartile 3 1.0 NA 1.0 NA 0.1 0.5 0.5 0.5 0.6NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
17
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
Date Result Control Result Control
Result (million/m
l)
Control (million/m
l) MDD(%)10/23/2001 100 100 100 100
12/28/2004 100 100 100 100
Count 2 2 2 2 N/A N/A N/A
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
22
B2: 531SAC002 – Mokelumne River at New Hope Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
10/23/2001 <2 <2 <0.1 <1 2.9 1.0 1.811/27/2001 NA NA NA 0.1 5.4 1.9 4.012/26/2001 NA NA 0.2 NA 2.6 1.7 4.11/29/2002 NA 1.4 0.2 NA 4.6 4.7 8.53/26/2002 NA 1.0 0.1 0.1 3.1 3.3 6.04/23/2002 NA NA NA NA 1.5 1.5 2.45/28/2002 NA NA NA 0.1 1.8 1.2 2.06/18/2002 NA 0.5 NA NA 1.3 1.0 1.78/27/2002 NA 0.9 0.4 0.4 NA 4.8 7.49/24/2002 NA NA 0.1 0.1 2.3 1.1 2.2
10/29/2002 NA 0.5 0.1 <0.03 1.4 1.0 1.412/17/2002 NA 1.0 0.2 <0.03 2.3 2.8 4.6
Count 9 NA 15 NA 16 16 19 18 18Min 1.0 NA 0.5 NA 0.1 0.02 1.1 0.7 1.0Max 2.1 NA 1.4 NA 0.4 0.5 5.4 4.8 8.5Mean 1.2 NA 1.0 NA 0.2 0.3 2.3 1.9 3.4Geo Mean 1.2 NA 0.9 NA 0.1 0.2 2.1 1.6 2.7Median 1.0 NA 1.0 NA 0.1 0.5 2.3 1.4 2.4Quartile 1 1.0 NA 1.0 NA 0.1 0.1 1.5 1.0 1.7Quartile 3 1.0 NA 1.0 NA 0.2 0.5 2.7 2.6 4.5NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
28
B3: 531SJC507 – Pixley Slough at Davis Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
32
B4: 544SJC508 – Bear Creek at Thorton Road (J8) Station Code:544SJC508
Location: Latitude 38.04306, Longitude -121.34861
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 8:45 AM 11.7 132 7.011/28/2000 9:20 AM 9.2 210 7.012/27/2000 9:00 AM 5.6 261 7.31/23/2001 9:00 AM 7.6 308 8.82/20/2001 9:19 AM 10.8 93 7.13/27/2001 9:10 AM 16.1 117 6.94/24/2001 10:32 AM 19.9 94 6.85/29/2001 9:00 AM 19.4 85 6.36/5/2001 7:12 AM 19.8 111 7.8 6.46/19/2001 7:50 AM 24.2 57 7.7 7.16/26/2001 8:53 AM 20.3 481 7.7 8.77/24/2001 8:21 AM 22.3 84 7.3 4.98/28/2001 8:29 AM 23.2 76 7.1 4.89/25/2001 9:06 AM 19.0 106 7.4 6.1
10/23/2001 9:02 AM 16.4 148 7.7 8.111/27/2001 8:28 AM 8.5 77 7.7 7.512/26/2001 9:16 AM 9.3 211 7.0 NA1/29/2002 7:55 AM 6.6 198 7.7 11.82/26/2002 7:52 AM 13.2 232 7.8 10.53/26/2002 8:59 AM 14.4 192 7.7 7.94/23/2002 9:19 AM 18.0 71 7.3 8.35/28/2002 8:31 AM 19.5 73 7.5 9.06/18/2002 8:34 AM 20.7 124 7.3 6.77/31/2002 10:11 AM 21.7 94 7.1 6.3 39.18/27/2002 9:10 AM 20.8 116 NA NA1/15/2003 12:44 PM 13.2 239 7.6 9.2 21.6
n 15 7.4 NA NA Mean 11 5.9 997 87ian 15 5.8 1416 106rtile 1 7 3.9 91
MedQua 3 76
rtile Qua 3 21 7.7 1918 136E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable = Site was inaccessible = Site had no flow
NOT
NA =INADRY
B4: 544SJC508 – Bear Creek at Thorton Road (J8) continued …
10/23/2001 <2 <2 0.3 <1 3.9 2.0 3.611/27/2001 NA NA NA 0.1 3.5 2.3 4.312/26/2001 NA NA 1.0 NA 14 2.7 7.31/29/2002 NA 1.6 0.3 0.2 9.9 4.6 8.32/26/2002 NA NA 0.5 0.3 11 2.9 4.93/26/2002 NA 1.6 0.4 0.4 8.7 3.2 6.04/23/2002 NA NA NA NA 1.7 1.2 2.45/28/2002 NA NA NA 0.1 2.3 0.8 1.36/18/2002 NA 0.7 NA 0.1 18 1.2 2.38/27/2002 NA 0.5 0.1 0.1 NA 0.4 0.9
Count 12 NA 16 NA 17 19 20 19 19Min 1.0 NA 0.5 NA 0.1 0.1 1.4 0.4 0.9Max 5.4 NA 2.5 NA 1.0 1.1 19.0 8.4 14.5Mean 2.3 NA 1.1 NA 0.3 0.4 6.8 2.4 4.5Geo Mean 1.9 NA 1.1 NA 0.2 0.3 5.0 1.9 3.6Median 2.3 NA 1.0 NA 0.2 0.5 4.6 2.0 3.9Quartile 1 1.0 NA 1.0 NA 0.1 0.2 2.4 1.1 2.1Quartile 3 2.7 NA 1.0 NA 0.3 0.5 10.2 2.8 6.1NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
35
B4: 544SJC508 – Bear Creek at Thorton Road (J8) continued …
/2005 13 1733 76/2005 16 1553 37/2005 13 >2419.6 145/2005 NA >2419.6 96/2005 NA >2419.6 548/2005 2.9 >2419.6 102/2005 NA >2419.6 2420/2005 4.3 >2419.6 126/2005 4.1 >2419.6 133
t NA 14 28 28NA 2.9 1553 15N
Min Max A 16 2420 2420
n NMea A 8.9 NA NA Mean NA 7.7 2326 113ian N
GeoMed A 8.5 2420 96
rtile 1 NQua A 4.5 2420 47rtile 3 NA 13 2420 151E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable = Site was inaccessibleY = Site had no flow
QuaNOT
NA =INADR
B5: 531SJC515 – Bear Creek at Lower Sacramento Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
9/24/2002 NA NA 0.8 NA 1.9 1.3 2.210/29/2002 NA 0.8 0.1 NA 9.9 0.9 1.511/19/2002 NA 0.8 0.1 0.1 10 1.5 2.712/17/2002 NA 3.7 1.4 <0.03 17 8 16.41/28/2003 NA 1.5 0.4 0.3 12 1.3 2.5
Count NA NA 4 NA 5 3 5 5 5Min NA NA 0.8 NA 0.1 0.02 1.9 0.9 1.5Max NA NA 3.7 NA 1.4 0.3 17.0 8.0 16.4Mean NA NA 1.7 NA 0.6 0.1 10.2 2.6 5.1Geo Mean NA NA 1.4 NA 0.3 0.1 8.3 1.8 3.3Median NA NA 1.2 NA 0.4 0.1 10.0 1.3 2.5Quartile 1 NA NA 0.8 NA 0.1 0.1 9.9 1.3 2.2Quartile 3 NA NA 2.1 NA 0.8 0.2 12.0 1.5 2.7NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
42
B5: 531SJC515 – Bear Creek at Lower Sacramento Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
46
APPENDIX C
EASTSIDE BASIN
APPENDIX C: EASTSIDE BASIN C1: 535MER546 – Merced River @ River Road ………………………………………..03-13 C2: 535MER576 – Turner Slough at Fourth Ave………………………………………..14-26 C3: 535STC501 – TID 5 Harding Drain @ Carpenter Road…………………………….27-39 C4: 535STC513 – Tuolumne River at Shiloh Fishing Access……………………………40-52 C5: 535STC514 – Stanislaus river at Caswell Park………………………………………53-63 C6: 531SJC503 – Lone Tree Creek at Austin Road………………………………………64-75 C7: 531SJC504 – French Camp Slough at Airport Way………………………………….76-86
2
C1: 535MER546 – Merced River @ River Road Station Code:541MER546
C1: 535MER546 – Merced River @ River Road continued …
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 10 NA 9 NA 8 11 10 22 22Min 1.0 NA 1.0 NA 0.05 0.5 0.5 0.1 0.3Max 15 NA 2.4 NA 0.05 0.5 2.5 3.3 7.3Mean 7.6 NA 1.2 NA 0.05 0.5 1.4 0.6 1.1Geo Mean 6.0 NA 1.1 NA 0.05 0.5 1.2 0.4 0.8Median 7.3 NA 1.0 NA 0.05 0.5 1.5 0.5 0.7Quartile 1 5.3 NA 1.0 NA 0.05 0.5 0.7 0.3 0.6Quartile 3 10.3 NA 1.0 NA 0.05 0.5 1.7 0.6 0.9NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
8
C1: 535MER546 – Merced River @ River Road continued …
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
C1: 535MER546 – Merced River @ River Road continued …
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
C2: 535MER576 – Turner Slough at Fourth Ave continued…
Mean 42 8.2 2374 654ian 35 7.6 2420 749rtile 1 30 5.8 2420 381rtile 3 56 13 2420 1363E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
NOT
NA =INA =DRY
C2: 535MER576 – Turner Slough at Fourth Ave continued…
10/25/2001 9.4 <2 0.2 <1 6.011/29/2001 NA NA NA 0.1 NA 3.4 5.212/27/2001 NA NA 0.3 0.1 3.6 2.8 4.81/31/2002 NA 1.3 0.2 0.1 NA 3.1 5.22/28/2002 NA NA 0.2 NA 5.5 4.9 7.93/28/2002 NA 1.1 0.4 0.3 5.6 2.8 4.84/24/2002 NA NA 0.3 0.2 4.0 6.3 10.05/30/2002 NA NA NA 0.2 3.3 3.6 6.16/20/2002 INA INA INA INA INA8/29/2002 NA 0.8 NA 0.1 3.1 2.3 3.69/26/2002 NA 0.9 0.2 0.1 4.2 3.5 5.1
10/31/2002 NA 1.0 0.1 <0.03 2.4 7.5 11.411/21/2002 NA 0.8 0.1 0.1 5.0 4.1 6.112/19/2002 NA 1.6 0.2 0.1 4.4 5.0 6.91/30/2003 NA 2.0 NA 0.1 3.4 8.6 17.0
C2: 535MER576 – Turner Slough at Fourth Ave continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 9 NA 16 NA 18 22 21 20 20Min 1.0 NA 0.8 NA 0.1 0.02 2.4 2.1 3.6Max 9.9 NA 32 NA 12.0 11.0 100 8.7 17.2Mean 4.9 NA 3.5 NA 1.2 1.3 17 4.9 8.6Geo Mean 3.8 NA 1.5 NA 0.3 0.3 6.8 4.3 7.4Median 4.2 NA 1.0 NA 0.2 0.3 4.2 3.9 6.1Quartile 1 3.9 NA 1.0 NA 0.2 0.1 3.4 2.9 5.0Quartile 3 5.7 NA 1.4 NA 0.3 0.5 5.6 7.6 12.5NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
19
C2: 535MER576 – Turner Slough at Fourth Ave continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
26
C3: 535STC501 – TID 5 Harding Drain @ Carpenter Road Station Code:535STC501
Location: Latitude 37.46444, Longitude -121.03028
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/26/2000 2:05 PM 15.9 258 7.311/29/2000 11:10 AM 12.6 1100 7.012/27/2000 10:00 AM 10.5 921 7.21/24/2001 9:20 AM 12.0 1200 7.32/10/2001 10:40 AM 11.4 1030 7.22/11/2001 1:30 AM 10.8 1020 7.72/11/2001 1:30 AM 10.8 1020 7.72/21/2001 10:20 AM 15.7 875 7.53/28/2001 1:10 PM 21.1 517 7.74/25/2001 10:44 AM 22.0 518 7.65/30/2001 1:00 PM 26.2 819 7.16/5/2001 9:46 AM 20.0 624 7.6 6.16/19/2001 10:55 AM 22.5 557 7.8 7.96/27/2001 11:29 AM 21.4 486 7.7 8.77/25/2001 12:24 PM 23.6 536 7.7 8.98/29/2001 12:46 PM 23.0 487 7.8 9.99/26/2001 11:13 AM 20.4 789 7.5 5.2
10/24/2001 12:49 PM 16.3 552 7.6 8.011/28/2001 11:30 AM 10.6 1460 7.8 9.112/26/2001 11:05 AM 14.2 1160 7.7 9.41/30/2002 11:51 AM 12.3 1180 7.8 10.72/27/2002 10:50 AM 17.4 1150 7.7 9.53/27/2002 10:27 AM 16.8 582 7.5 8.44/30/2002 11:27 AM 18.1 649 7.6 8.85/29/2002 11:20 AM 23.3 605 7.7 8.56/19/2002 11:04 AM 22.7 649 7.8 9.37/30/2002 10:07 AM 22.0 713 7.8 7.4 0.78/28/2002 12:00 PM 25.4 647 8.1 NA9/25/2002 12:31 PM 22.8 806 7.8 9.7
10/15/2002 9:34 AM 18.2 378 7.5 8.9 NA10/30/2002 10:57 AM 17.4 1090 7.6 10.711/20/2002 10:48 AM 17.7 999 7.5 8.112/18/2002 11:02 AM 12.8 693 7.3 8.0 16.21/14/2003 1:52 PM 16.7 1130 7.6 9.4 7.31/22/2003 2:25 PM 15.6 1100 7.8 11.5 14.61/29/2003 11:32 AM 16.2 1080 7.5 8.8 5.12/4/2003 10:04 AM 14.3 1070 7.7 9.6 3.42/20/2003 8:54 AM 13.6 902 7.6 9.4 5.03/6/2003 1:49 PM 19.4 930 7.8 15.3 3.1
11/20/2003 11:30 AM 17.9 974 7.6 9.3 NA1/8/2004 10:17 AM 15.0 1190 7.7 7.7 NA7/29/2004 11:38 AM INA INA INA INA INA8/26/2004 11:55 AM 23.5 583 8.1 9.9 NA9/30/2004 11:55 AM 20.4 581 7.9 10.8 NA
10/24/2001 32 <2 0.8 <1 6.6 5.1 8.511/28/2001 NA 0.1 NA <0.03 1.2 3.6 8.812/26/2001 NA 8.8 2.1 2.0 11 7.3 15.51/30/2002 NA 5.2 0.8 0.6 14 7.4 15.92/27/2002 NA 11 1.6 1.4 NA 6.1 14.63/27/2002 NA 4.2 NA 0.5 4.7 7.0 15.54/30/2002 NA NA 2.3 2.0 NA 7.6 14.25/29/2002 NA 2.4 NA 1.6 7.3 4.6 8.26/19/2002 NA 2.5 1.8 NA 9.9 6.3 12.28/28/2002 NA 2.2 0.8 0.7 8.5 4.9 8.09/25/2002 NA NA 1.3 1.3 6.8 1.7 3.5
10/30/2002 NA NA 3.2 0.1 8.7 1.0 3.311/20/2002 NA 6.6 4.2 2.6 1512/18/2002 NA 4.0 3.2 3.2 9.7 6.4 8.71/29/2003 NA NA 7.5 3.7 11 3.6 7.2
Count 14 NA 23 NA 24 27 25 24 24Min 9.9 NA 0.1 NA 0.2 0.02 1.2 1.0 3.3Max 44 NA 16 NA 7.5 4.4 21 8.2 16.6Mean 23 NA 5.4 NA 1.8 1.6 10.8 5.9 11.6Geo Mean 21 NA 3.4 NA 1.3 1.0 9.5 5.4 11Median 21 NA 4.0 NA 1.6 1.4 9.9 6.4 13.2Quartile 1 15 NA 2.3 NA 0.8 0.5 7.3 4.6 8.4Quartile 3 27 NA 8.4 NA 2.0 2.3 15.0 7.5 15.7NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
39
C4: 535STC513 – Tuolumne River at Shiloh Fishing Access Station Code:535STC513
Location: Latitude 37.60306, Longitude -121.13167
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/26/2000 10:55 AM 16.0 175 7.611/29/2000 9:45 AM 10.7 197 7.812/27/2000 11:40 AM 9.1 196 8.21/24/2001 11:00 AM 10.3 207 8.02/7/2001 12:30 PM 11.3 208 8.22/10/2001 12:20 PM 10.0 190 8.02/11/2001 2:20 AM 9.3 160 7.72/21/2001 12:45 PM 13.8 86 9.03/13/2001 12:45 PM 16.2 107 8.23/28/2001 11:15 AM 20.0 197 6.74/18/2001 1:09 PM 20.9 215 8.24/25/2001 9:18 AM 20.4 121 7.25/15/2001 1:05 PM 20.7 95 8.05/30/2001 10:40 AM 23.6 283 7.56/6/2001 9:05 AM 21.1 278 6.7 6.86/13/2001 11:10 AM 22.2 345 8.2 8.16/20/2001 8:50 AM 24.8 396 7.4 7.86/27/2001 9:50 AM 22.8 313 7.9 7.37/25/2001 10:24 AM 25.6 282 8.0 10.18/14/2001 12:20 PM 24.5 236 8.1 9.48/29/2001 10:40 AM 24.5 259 7.5 9.09/26/2001 9:50 AM 20.6 240 7.5 9.6
10/24/2001 10:42 AM 15.6 182 7.9 9.711/28/2001 9:50 AM 10.7 253 8.6 10.712/26/2001 10:08 AM 11.0 266 7.8 10.21/30/2002 10:09 AM 7.7 198 8.0 12.32/27/2002 9:35 AM 15.0 278 7.7 11.03/27/2002 9:15 AM 15.9 235 8.3 9.74/30/2002 10:09 AM 13.5 62 7.4 11.15/29/2002 9:38 AM 22.6 234 7.5 8.46/19/2002 9:20 AM 23.4 300 7.7 7.67/31/2002 8:04 AM 23.9 288 7.0 6.9 2.18/28/2002 10:20 AM 24.1 264 8.1 NA9/25/2002 10:32 AM 22.1 260 7.7 8.4
10/15/2002 10:58 AM 17.6 199 7.8 8.8 NA10/30/2002 9:21 AM 13.9 184 7.5 9.411/20/2002 9:39 AM 12.8 248 7.6 10.312/18/2002 9:11 AM 10.3 217 7.6 8.4 94.5
40
C4: 535STC513 – Tuolumne River at Shiloh Fishing Access continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
1/14/2003 1:19 PM 12.7 229 7.6 10.0 9.81/22/2003 3:06 PM 11.8 260 8.2 11.2 5.81/29/2003 9:59 AM 12.7 228 7.7 10.2 9.92/4/2003 9:30 AM 10.7 240 8.1 11.1 3.22/19/2003 10:40 AM 12.4 236 7.9 10.5 7.03/5/2003 10:12 AM 13.2 240 7.7 11.0 2.63/18/2003 11:38 AM 15.4 216 7.9 9.0 46.83/25/2003 9:06 AM 16.2 217 8.0 10.1 5.74/2/2003 11:40 AM 16.5 205 8.2 9.7 18.54/16/2003 11:16 AM 13.9 58 7.5 10.1 15.85/6/2003 11:59 AM 17.3 114 8.2 9.8 8.85/21/2003 11:42 AM 22.0 207 7.6 9.2 5.66/4/2003 11:05 AM 24.0 168 7.6 8.1 26.36/17/2003 11:08 AM 24.4 182 7.6 9.1 7.26/30/2003 12:49 PM 25.8 158 7.9 8.1 6.97/23/2003 10:03 AM 26.4 163 7.6 7.8 4.18/5/2003 9:54 AM 23.1 151 7.6 9.6 4.28/20/2003 10:13 AM 23.8 164 7.7 8.1 5.09/9/2003 10:02 AM 20.5 173 7.7 8.3 6.09/22/2003 10:17 AM 21.5 165 7.6 8.5 4.910/7/2003 10:43 AM 19.6 173 8.0 8.9 12.4
10/21/2003 11:58 AM 17.3 106 7.7 8.7 4.811/4/2003 10:53 AM 12.5 185 7.8 10.9 10.0
C4: 535STC513 – Tuolumne River at Shiloh Fishing Access continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 14 NA 14 NA 14 15 14 24 24Min 2.5 NA 0.3 NA 0.1 0.1 1.1 0.1 0.2Max 9.3 NA 2.2 NA 0.4 0.5 6.2 5.6 8.4Mean 6.5 NA 1 NA 0.1 0.5 2.4 0.7 1.2Geo Mean 6.2 NA 1 NA 0.1 0.4 2.1 0.5 0.8Median 6.7 NA 1 NA 0.1 0.5 1.8 0.5 0.8Quartile 1 6.0 NA 1 NA 0.1 0.5 1.6 0.3 0.7Quartile 3 7.5 NA 1 NA 0.2 0.5 2.9 0.7 1.2NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
46
C4: 535STC513 – Tuolumne River at Shiloh Fishing Access continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
51
C4: 535STC513 – Tuolumne River at Shiloh Fishing Access continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
C5: 535STC514 – Stanislaus River at Caswell Park continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 11 NA 11 NA 11 12 11 21 21Min 1 NA 0.1 NA 0.1 0.0 0.5 0.2 0.4Max 3.7 NA 1.0 NA 0.1 0.5 2.3 6.2 8.8Mean 2.1 NA 0.9 NA 0.1 0.5 1.5 0.8 1.3Geo Mean 1.7 NA 0.8 NA 0.1 0.4 1.4 0.6 1.0Median 1.0 NA 1.0 NA 0.1 0.5 1.7 0.5 0.9Quartile 1 1.0 NA 1.0 NA 0.1 0.5 1.2 0.4 0.8Quartile 3 3.3 NA 1.0 NA 0.1 0.5 1.8 0.7 1.0NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
58
C5: 535STC514 – Stanislaus River at Caswell Park continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
62
C5: 535STC514 – Stanislaus River at Caswell Park continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
10/24/2001 4.6 <2 0.9 <1 14 2.3 5.511/28/2001 NA 4.3 NA 1.3 30 7.9 16.112/26/2001 NA 4.4 2.0 1.5 33 8.1 16.31/30/2002 NA 12 4.5 2.7 53 8.2 16.42/27/2002 NA 5.2 2.0 1.2 NA 8.2 16.53/27/2002 NA 1.2 NA 0.2 5.6 1.8 2.84/30/2002 NA NA 0.6 0.5 NA 8.2 13.35/29/2002 NA 1.5 NA 0.6 6.8 5.6 8.06/19/2002 NA 1.1 0.5 NA 5.9 3.3 5.28/28/2002 NA 0.7 0.9 0.8 4.8 1.3 2.49/25/2002 NA NA 0.4 0.4 4.9 2.6 3.9
11/20/2002 NA 5.6 1.8 1.2 2912/18/2002 NA 17 4.4 <0.03 42 8.1 16.51/29/2003 NA NA 4.8 2.8 36 7.7 16.1
68
C6: 531SJC503 – Lone Tree Creek at Austin Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 14 NA 23 NA 24 26 24 23 23Min 1.0 NA 0.7 NA 0.2 0.02 2.4 1.3 2.2Max 10.0 NA 17.0 NA 4.8 2.8 53.0 8.3 16.8Mean 4.8 NA 3.6 NA 1.3 1.0 19.2 5.1 9.6Geo Mean 3.8 NA 2.3 NA 0.9 0.7 13.6 4.2 7.7Median 3.8 NA 1.5 NA 0.9 0.7 18.5 5.6 8.0Quartile 1 3.0 NA 1.0 NA 0.5 0.5 5.8 2.4 4.4Quartile 3 7.1 NA 4.8 NA 1.3 1.3 29.3 8.0 16.1NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
69
C6: 531SJC503 – Lone Tree Creek at Austin Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
75
C7: 531SJC504 – French Camp Slough at Airport Way Station Code:531SJC504
Location: Latitude 37.88167, Longitude -121.24944
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 9:35 AM 12.0 289 7.211/28/2000 9:55 AM 9.0 738 8.412/27/2000 9:40 AM 5.8 714 8.71/23/2001 9:30 AM 7.7 402 8.02/20/2001 9:51 AM 11.4 239 7.23/27/2001 9:49 AM 14.6 84 7.24/24/2001 2:51 PM DRY DRY DRY5/29/2001 10:10 AM 19.5 104 6.66/26/2001 9:59 AM 19.4 201 7.8 8.57/24/2001 8:59 AM 22.3 133 7.4 6.98/28/2001 9:11 AM 21.6 138 7.6 8.19/25/2001 10:00 AM 18.2 107 7.6 8.9
10/23/2001 9:31 AM 16.0 296 7.7 7.911/27/2001 9:27 AM 8.0 323 7.4 6.812/26/2001 10:13 AM 9.6 255 7.0 NA1/29/2002 8:46 AM 6.3 187 8.0 13.22/26/2002 8:39 AM 13.1 255 8.0 12.93/26/2002 9:53 AM 13.3 146 7.2 10.34/23/2002 9:59 AM 18.4 149 7.5 8.35/28/2002 9:12 AM 19.7 167 7.1 0.46/18/2002 9:11 AM 21.6 162 7.5 6.77/31/2002 9:08 AM 22.5 172 7.6 6.3 45.78/27/2002 9:50 AM 20.6 131 NA NA9/24/2002 9:30 AM 18.9 107 7.6 8.0
10/23/2001 9.2 <2 0.6 <1 11 3.0 4.811/27/2001 NA NA NA 1.5 37 16.4 33.512/26/2001 NA NA 0.6 NA 11 3.7 6.51/29/2002 NA 1.0 0.2 0.1 5.0 2.0 3.02/26/2002 NA NA 0.1 <0.03 1.9 1.8 2.93/26/2002 NA 0.7 0.1 0.1 2.3 2.1 3.74/23/2002 NA NA NA NA 5.6 3.3 5.35/28/2002 NA NA NA 1.3 10 8.7 17.06/18/2002 NA 1.1 NA 0.5 7.5 3.5 5.58/27/2002 NA 0.8 0.4 0.3 NA 1.0 1.89/24/2002 NA NA 0.5 0.3 4.1 1.8 3.1
10/29/2002 NA 0.6 0.3 0.3 7.6 1.4 2.811/19/2002 NA 3.1 1.2 0.8 21 4.7 8.512/17/2002 NA 4.1 1.5 <0.03 17 8.3 16.81/28/2003 NA 1.3 0.3 0.2 6.8 1.3 2.3
80
C7: 531SJC504 – French Camp Slough at Airport Way continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 11 NA 19 NA 21 23 24 23 23Min 2.6 NA 0.6 NA 0.1 0.02 1.9 1.0 1.8Max 29.0 NA 4.1 NA 1.5 1.5 37.0 16.4 33.5Mean 10.1 NA 1.4 NA 0.5 0.5 9.8 3.6 6.6Geo Mean 7.3 NA 1.2 NA 0.3 0.3 7.5 2.7 4.7Median 7.3 NA 1.0 NA 0.3 0.5 7.2 2.2 3.7Quartile 1 3.6 NA 1.0 NA 0.2 0.3 4.6 1.6 2.9Quartile 3 12.1 NA 1.1 NA 0.5 0.5 11.3 3.6 6.2NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
81
C7: 531SJC504 – French Camp Slough at Airport Way continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
86
APPENDIX D
SOUTHEAST BASIN
APPENDIX D: SOUTHEAST BASIN D1: 545MAD006 – Lone Willow Slough at Road No. 9 ……………………………………...03 D2: 541MER015 – Santa Rita Slough at HWY 152………………………………………...04-09 D3: 535MER577 – Deep Slough at Green House Road…………………………………….10-20 D4: 535MER007 – Bear Creek near Bert Crane Road………………………………………21-32
2
D1: 545MAD006 – Lone Willow Slough at Road No. 9 Station Code: 545MAD006
Location: Latitude 36.86694444, Longitude -120.38194444
Count NA NA NA NA NAMin NA NA NA NA NAMax NA NA NA NA NAMean NA NA NA NA NAGeo Mean NA NA NA NA NAMedian NA NA NA NA NAQuartile 1 NA NA NA NA NAQuartile 3 NA NA NA NA NANOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
3
D2: 541MER015 – Santa Rita Slough at HWY 152 Station Code:541MER015
Location: Latitude 37.04750, Longitude -120.59361
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/26/2000 DRY DRY DRY DRY DRY11/30/2000 6:52 AM DRY DRY DRY DRY12/28/2000 8:20 AM DRY DRY DRY DRY1/25/2001 9:23 AM 5.7 731 7.12/22/2001 8:45 AM 9.6 820 8.23/29/2001 9:00 AM 16.3 830 7.74/26/2001 12:40 PM DRY DRY DRY DRY5/31/2001 12:00 PM DRY DRY DRY DRY6/28/2001 10:34 AM 21.2 615 7.0 6.27/26/2001 DRY DRY DRY DRY DRY8/30/2001 9:00 AM 21.7 643 7.4 NA9/27/2001 10:00 AM DRY DRY DRY DRY
Count 4 5 NA NAMin 3 0.5 NA NAMax 42 24 NA NAMean 19 10 NA NAGeo Mean 12 6 NA NAMedian 16 8.4 NA NAQuartile 1 8 4.3 NA NAQuartile
D2: 541MER015 – Santa Rita Slough at HWY 152 continued…
3 26 12 NA NANOTE: For values reported as < (less than), half the detection limit was used
For values reported as > (greater than), 2420 was used
NA =INA =DRY
Data not applicable Site was inaccessible
= Site had no flow
D2: 541MER015 – Santa Rita Slough at HWY 152 continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
1/25/2001 NA NA 0.5 <1 23 8.4 16.92/22/2001 10 <2 NA <1 8.4 2.4 4.03/29/2001 6.9 NA 1 1.5 8.9 2.6 5.96/28/2001 <2 <2 0.3 <1 6 1.6 2.98/30/2001 <2 <2 0.2 <1 5
Count 4 NA 3 NA 4 5 5 4 4Min 1.0 NA 1.0 NA 0.2 0.5 5.0 1.6 2.9Max 10.0 NA 1.0 NA 1.0 1.5 23.0 8.4 16.9Mean 4.7 NA 1.0 NA 0.5 0.7 10.3 3.8 7.4Geo Mean 2.9 NA 1.0 NA 0.4 0.6 8.8 3.0 5.8Median 4.0 NA 1.0 NA 0.4 0.5 8.4 2.5 5.0Quartile 1 1.0 NA 1.0 NA 0.3 0.5 6.0 2.2 3.7Quartile 3 7.7 NA 1.0 NA 0.6 0.5 8.9 4.1 8.7NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
D2: 541MER015 – Santa Rita Slough at HWY 152 continued…
10/25/2001 <2 <2 0.2 <1 7.4 4.6 7.811/29/2001 NA NA NA 0.2 NA 5.2 8.512/27/2001 NA NA 1.3 1.0 9.7 3.1 6.51/31/2002 NA 2.6 0.5 0.4 NA 3.2 8.02/28/2002 NA NA 0.4 0.2 6.9 8.0 14.13/28/2002 NA 1.7 0.8 0.8 7.7 3.2 5.44/24/2002 NA NA 0.3 0.1 6.1 6.0 10.25/30/2002 NA NA NA 0.2 6.3 2.9 5.06/20/2002 NA 1.3 NA 0.2 6.8 4.6 7.88/29/2002 NA 6.2 NA NA 9.1 8.5 17.1
10/31/2002 NA 1.3 0.2 0.1 4.7 4.4 7.011/21/2002 NA 1.2 0.4 0.2 4.4 5.5 9.012/19/2002 NA 1.9 0.3 <0.03 4.4 5.9 8.61/30/2003 NA 1.2 NA 0.5 5.3 2.4 4.0
D3: 535MER577 – Deep Slough at Green House Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 11 NA 18 NA 18 24 23 23 23Min 1.0 NA 1.0 NA 0.2 0.02 4.4 2.4 4.0Max 23.0 NA 6.2 NA 1.3 1.7 16.0 8.5 17.1Mean 4.8 NA 1.8 NA 0.5 0.5 8.1 5.1 9.3Geo Mean 2.4 NA 1.5 NA 0.5 0.4 7.7 4.8 8.6Median 1.0 NA 1.3 NA 0.4 0.5 7.4 4.6 8.2Quartile 1 1.0 NA 1.0 NA 0.3 0.2 6.0 3.5 6.8Quartile 3 4.8 NA 2.1 NA 0.6 0.5 9.9 6.2 10.9NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
15
D3: 535MER577 – Deep Slough at Green House Road continued…
D4: 535MER007 – Bear Creek near Bert Crane Road continued…
3 44Max 170 21 2420 2420MeaGeoMedQuaQua
n 57 5.9 NA NA Mean 46 4.4 2384 502ian 50 4.8 2420 448rtile 1 33 3.3 2420 265rtile 3 54 7.0 2420 1276E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
NOT
NA =INA =DRY
D4: 535MER007 – Bear Creek near Bert Crane Road continued…
10/25/2001 3 <2 0.2 <1 1.9 1.1 2.311/29/2001 NA NA NA 0.2 NA 7.6 13.512/27/2001 NA NA 0.1 <0.03 2 0.7 1.41/31/2002 NA 0.5 <0.05 <0.03 NA 1 22/28/2002 NA NA 0.1 <0.03 1.3 1.0 1.93/28/2002 NA 0.7 0.1 0.1 2.6 1.7 3.44/24/2002 NA NA 0.2 0.1 1.8 1.6 2.75/30/2002 NA NA NA 0.1 1.9 1.6 2.56/20/2002 NA 0.7 NA 0.1 1.8 1.8 3.18/29/2002 NA 0.9 NA 0.1 2.8 1.5 2.89/26/2002 NA 0.4 0.2 0.1 1.8 1.3 2.4
10/31/2002 NA 0.2 0.1 0.1 1.4 1.4 2.111/21/2002 NA 0.9 0.1 0.1 4 1.0 2.012/19/2002 NA 1.4 0.1 NA 2.5 3.6 5.21/30/2003 NA 0.6 NA <0.03 2.2 1.0 1.6
D4: 535MER007 – Bear Creek near Bert Crane Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 11 NA 19 NA 19 25 24 24 24Min 1.0 NA 0.2 NA 0.03 0.02 1.3 0.7 1.4Max 31.0 NA 9.8 NA 0.3 2.0 11.0 7.6 16.0Mean 5.5 NA 1.3 NA 0.2 0.3 2.7 2.3 4.2Geo Mean 3.1 NA 0.9 NA 0.1 0.2 2.4 1.8 3.3Median 3.0 NA 1.0 NA 0.1 0.2 2.0 1.6 2.8Quartile 1 1.8 NA 0.7 NA 0.1 0.1 1.8 1.1 2.1Quartile 3 3.9 NA 1.0 NA 0.2 0.5 2.9 1.9 4.1NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
26
D4: 535MER007 – Bear Creek near Bert Crane Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
APPENDIX E
GRASSLANDS BASIN
APPENDIX E: GRASSLANDS BASIN E1: 541MER531 – Salt Slough @ Lander Avenue ……………………………………......03-19 E2: 541MER536 – Mud Slough Upstream of SLD Terminus……………………………...20-38 E3: 541MER535 – San Luis Drain @ Terminus……………………………………………39-64 E4: 541MER542 – Mud Slough @ San Luis Drain…………………………………………66-83
2
E1: 541MER531 – Salt Slough @ Lander Avenue Station Code:541MER531
Location: Latitude 37.24861, Longitude -120.85111
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/5/2000 10:12 AM 19.1 1330 7.210/12/2000 10:05 AM 16.1 905 8.010/19/2000 9:47 AM 17.2 1390 7.810/26/2000 2:05 PM 14.7 1600 7.211/2/2000 9:52 AM 14.3 1300 6.311/9/2000 9:35 AM 12.5 1390 7.7
11/16/2000 10:15 AM 10.9 1570 6.911/21/2000 7:45 AM 9.3 1590 7.911/30/2000 9:20 AM 9.6 1660 7.112/7/2000 9:10 AM 9.8 1480 7.6
12/12/2000 9:10 AM 11.2 1460 7.412/21/2000 11:10 AM 9.4 1650 7.712/28/2000 10:50 AM 7.9 1810 7.21/4/2001 9:06 AM 7.6 1920 7.81/11/2001 10:56 AM 9.2 1310 7.71/18/2001 9:15 AM 6.7 1830 7.31/25/2001 11:45 AM 10.5 1790 6.62/1/2001 10:30 AM 8.5 1920 6.82/8/2001 10:00 AM 8.6 1670 7.82/15/2001 11:00 AM 10.5 1560 7.52/22/2001 12:15 PM 17.0 1600 7.63/1/2001 8:55 AM 11.3 1560 7.33/8/2001 9:40 AM 14.9 1340 7.03/15/2001 11:15 AM 16.6 1610 7.43/22/2001 11:36 AM 19.2 1910 7.63/29/2001 11:10 AM 19.4 1540 8.14/5/2001 12:00 PM 15.8 1740 7.74/12/2001 9:42 AM 13.2 1610 7.24/19/2001 11:50 AM 16.8 1890 7.84/26/2001 10:51 AM 22.8 1400 6.85/3/2001 10:20 AM 15.4 1900 7.85/10/2001 8:26 AM 22.9 1240 7.85/17/2001 11:52 AM 23.1 990 7.85/24/2001 9:05 AM 23.5 1300 6.65/31/2001 9:30 AM 24.7 1310 7.86/7/2001 11:15 AM 25.1 1280 7.8 7.56/14/2001 10:08 AM 20.8 1240 7.8 6.8
3
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
6/21/2001 11:38 AM 26.8 1090 7.3 7.16/28/2001 12:45 PM 24.0 1040 7.8 6.17/5/2001 8:47 AM 24.5 1340 7.8 6.17/11/2001 11:05 AM 23.9 975 7.8 7.37/19/2001 11:14 AM 24.2 1100 7.9 8.47/26/2001 1:37 PM 27.6 1000 7.1 NA8/2/2001 9:19 AM 23.9 999 7.9 5.98/9/2001 8:54 AM 25.9 1210 7.6 5.88/16/2001 10:03 AM 24.1 1080 7.5 NA8/23/2001 9:00 AM 22.1 1030 7.7 6.88/30/2001 1:14 PM 25.8 1430 8.3 NA9/6/2001 8:26 AM 20.8 1560 7.8 6.69/13/2001 8:48 AM 20.1 1530 7.7 6.69/20/2001 10:37 AM 21.5 1690 7.9 3.09/27/2001 12:03 PM 22.5 1480 8.0 9.010/4/2001 8:34 AM 19.9 1460 7.8 7.6
10/11/2001 9:14 AM 17.8 1200 7.9 7.110/18/2001 9:09 AM 18.3 1170 7.8 7.610/25/2001 11:36 AM 15.8 1700 7.2 11.411/1/2001 9:30 AM 16.0 1680 7.7 8.311/8/2001 9:11 AM 14.6 1440 8.6 9.8
11/15/2001 9:11 AM 18.3 1280 7.7 7.311/20/2001 11:14 AM 14.4 1570 7.6 9.311/29/2001 10:20 AM 9.9 1710 7.7 9.912/6/2001 8:50 AM 9.9 1480 7.7 11.0
12/13/2001 9:13 AM 9.4 2020 7.7 10.112/20/2001 10:14 AM 10.8 2420 7.8 11.012/27/2001 10:04 AM 10.7 2470 7.7 9.01/3/2002 9:09 AM 12.9 2020 7.6 9.01/10/2002 9:06 AM 12.2 2010 7.5 9.11/17/2002 8:20 AM 7.8 2200 7.6 10.51/24/2002 12:15 PM 8.8 2010 7.5 10.41/31/2002 11:48 AM 8.2 1870 7.8 9.82/7/2002 8:44 AM 10.5 1550 7.8 10.12/14/2002 8:40 AM 11.3 1670 7.5 8.82/21/2002 10:27 AM 14.6 1330 7.7 8.92/28/2002 2:08 PM 17.1 1550 7.9 11.9
4
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
3/7/2002 8:40 AM 14.4 1620 7.7 7.23/14/2002 11:33 AM 13.3 1820 7.9 9.83/21/2002 11:31 AM 15.5 1830 7.6 8.23/28/2002 1:14 PM 18.6 2030 7.8 10.44/4/2002 8:38 AM 17.9 1780 7.7 6.84/11/2002 9:11 AM 18.4 1660 7.7 6.74/18/2002 7:14 AM 14.6 1640 7.8 7.64/24/2002 11:33 AM 20.0 1790 7.7 6.35/2/2002 8:07 AM 16.4 1560 8.1 9.85/9/2002 9:13 AM 18.3 1670 7.7 7.75/16/2002 9:15 AM 20.5 1570 7.7 6.3 54.05/23/2002 6:55 AM 17.5 1120 7.6 NA5/30/2002 11:12 AM 25.9 1340 7.6 6.66/6/2002 7:50 AM 24.4 1220 7.7 NA6/13/2002 11:01 AM 23.1 1230 8.0 NA6/20/2002 11:29 AM 24.7 1240 7.7 5.2 NA6/27/2002 9:36 AM 23.5 1020 7.7 5.97/3/2002 9:55 AM 24.9 1100 8.2 NA7/11/2002 11:51 AM 27.4 1340 7.7 NA7/18/2002 8:55 AM 23.8 1100 7.6 3.1 1487/25/2002 8:25 AM 23.4 960 7.6 6.57/30/2002 11:10 AM 24.2 784 7.7 6.4 1408/1/2002 8:39 AM 24.1 923 7.8 6.38/8/2002 9:56 AM 22.3 896 7.8 6.58/15/2002 8:23 AM 24.1 948 7.7 6.48/22/2002 8:46 AM 21.1 1110 7.7 7.38/29/2002 11:41 AM 23.2 1270 7.7 8.4 68.09/5/2002 8:27 AM 21.5 1110 7.8 7.29/12/2002 8:12 AM 21.4 1280 7.9 7.19/19/2002 8:51 AM 20.5 1320 7.6 7.4 84.09/26/2002 11:34 AM 22.4 1260 8.0 8.810/3/2002 9:05 AM 14.0 1260 8.0 9.5
10/10/2002 11:14 AM 20.1 1360 7.8 5.910/17/2002 11:58 AM 16.8 958 7.8 9.1 79.610/24/2002 9:48 AM 14.7 1110 7.9 9.010/31/2002 12:05 PM 14.5 1390 7.7 8.8 71.211/7/2002 9:02 AM 13.3 1260 7.9 9.7
11/14/2002 9:39 AM 14.2 1300 7.5 8.411/21/2002 8:47 AM 12.4 1440 7.3 8.5 62.111/26/2002 11:22 AM 12.3 1590 7.9 10.3
5
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
12/5/2002 8:57 AM 10.6 1510 7.7 10.8 NA12/12/2002 8:59 AM 11.5 1590 7.6 10.712/19/2002 11:48 AM 9.5 1360 7.4 8.9 55.012/24/2002 9:59 AM 8.0 1460 7.3 10.51/2/2003 11:17 AM 9.9 1630 7.6 13.71/9/2003 10:04 AM 10.2 1850 7.6 11.51/16/2003 10:41 AM 11.7 1730 7.6 9.3 56.41/23/2003 8:28 AM 11.2 1700 7.0 11.41/30/2003 9:20 AM 12.8 1910 7.6 9.0 49.82/6/2003 9:54 AM 9.7 2230 7.7 11.92/13/2003 11:08 AM 13.0 2080 7.7 9.7 35.72/20/2003 10:57 AM 11.3 1340 7.8 10.9 89.22/27/2003 8:25 AM 12.6 1440 7.6 8.33/6/2003 8:53 AM 13.4 1590 7.9 9.0 NA3/13/2003 8:48 AM 17.4 1620 7.7 7.9 44.23/20/2003 8:24 AM 14.6 1820 7.7 8.7 51.53/27/2003 1:35 PM 17.5 1540 7.9 12.4 1504/3/2003 12:30 PM 18.7 1780 7.3 8.3 61.44/10/2003 8:29 AM 18.2 1840 7.8 7.7 83.64/17/2003 8:41 AM 16.0 1590 7.7 7.4 82.84/24/2003 9:19 AM 16.5 1850 7.6 7.3 64.35/1/2003 8:53 AM 17.2 1650 7.7 8.1 NA5/8/2003 8:18 AM 15.8 1770 7.7 8.5 64.35/15/2003 8:35 AM 17.1 1820 7.7 9.65/22/2003 9:05 AM 22.6 1270 7.7 6.5 61.25/29/2003 9:00 AM 24.8 1250 7.6 5.06/5/2003 8:48 AM 23.4 1140 7.6 6.0 1186/12/2003 9:35 AM 19.8 1240 8.0 8.0 1706/19/2003 8:46 AM 21.1 1220 7.7 6.4 1376/26/2003 9:04 AM 23.8 1050 7.7 6.1 1007/3/2003 8:37 AM 23.4 921 7.7 7.27/10/2003 9:03 AM 24.3 990 7.7 7.27/17/2003 8:58 AM 25.6 906 7.8 5.57/24/2003 8:49 AM 26.2 1080 7.8 6.7 1297/31/2003 8:49 AM 25.9 936 7.6 5.0 1238/7/2003 8:45 AM 23.0 824 7.7 6.3 1468/14/2003 8:33 AM 22.8 1030 7.8 6.8
6
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
8/21/2003 8:44 AM 23.9 839 7.7 6.3 1338/28/2003 8:48 AM 23.3 772 7.7 NA 1359/4/2003 8:45 AM 24.2 1060 7.9 6.6 1039/11/2003 9:36 AM 20.8 1180 8.0 8.5 75.69/18/2003 8:45 AM 18.3 1290 7.8 1.2 3309/25/2003 8:59 AM 19.9 1260 8.0 7.6 66.410/2/2003 9:14 AM 19.2 1070 7.8 7.9 11310/9/2003 8:32 AM 19.3 1040 7.8 5.5 209
10/16/2003 10:58 AM 17.1 1250 7.8 10.2 70.010/23/2003 9:10 AM 18.4 1240 7.7 7.6 10410/30/2003 8:50 AM 14.4 1240 7.8 8.9 73.611/6/2003 8:41 AM 12.8 1200 7.7 9.6 73.0
11/13/2003 8:19 AM 12.8 1390 7.7 9.1 51.611/20/2003 8:40 AM 12.6 1380 7.6 8.9 56.211/26/2003 8:21 AM 8.2 1540 7.7 11.0 50.912/4/2003 8:27 AM 12.2 1670 7.9 10.0
12/11/2003 8:24 AM 11.2 2020 7.5 10.2 NA12/18/2003 8:50 AM 8.6 1920 7.6 11.2 NA12/23/2003 8:36 AM 11.4 1740 7.4 10.3 NA12/30/2003 8:38 AM 8.3 1600 7.7 12.0 NA1/8/2004 8:07 AM 8.5 1560 7.7 10.0 NA1/15/2004 8:44 AM 9.8 1690 7.7 9.8 NA1/22/2004 8:47 AM 9.4 1680 7.7 14.9 44.41/29/2004 8:54 AM 10.3 1630 7.6 11.5 49.02/5/2004 8:41 AM 10.1 1510 7.7 11.3 76.12/12/2004 8:30 AM 10.6 1860 7.4 10.8 NA2/19/2004 8:38 AM 12.1 1400 7.5 9.6 NA2/26/2004 8:37 AM 11.9 1500 7.5 8.0 NA3/4/2004 8:40 AM 12.2 1420 7.6 8.8 1253/11/2004 8:46 AM 17.1 1720 7.6 6.6 NA3/18/2004 8:04 AM 19.0 1950 7.9 8.13/25/2004 8:45 AM 17.4 1670 7.7 7.1 62.04/1/2004 8:43 AM 15.7 1980 7.6 8.84/8/2004 8:40 AM 17.2 1700 7.8 7.3 85.14/15/2004 8:57 AM 17.5 1690 7.9 7.8 91.34/22/2004 8:50 AM 16.2 1480 7.8 9.1 1204/29/2004 10:02 AM 17.2 1800 7.9 NA 79.45/6/2004 8:54 AM 21.2 1360 7.8 10.8 84.55/13/2004 9:20 AM 18.8 1330 7.8 12.9 1065/20/2004 8:49 AM 19.9 1320 7.6 7.4 96.75/27/2004 8:35 AM 21.1 1460 7.8 NA NA6/3/2004 9:25 AM 23.0 1190 8.0 6.9 1136/10/2004 9:18 AM 19.4 1010 7.8 7.8 1596/17/2004 9:10 AM 22.9 1100 7.7 6.3 1166/24/2004 9:01 AM 22.4 1130 7.8 6.6 18.8
7
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
7/1/2004 8:53 AM 21.4 1220 7.9 7.5 NA7/8/2004 8:51 AM 22.0 1110 7.8 6.9 NA7/15/2004 9:04 AM 23.7 1090 7.9 6.2 NA7/22/2004 10:43 AM 26.1 966 8.1 8.3 NA7/29/2004 8:32 AM 23.4 1150 7.8 6.6 NA8/5/2004 8:18 AM 23.2 1000 7.4 6.7 NA8/12/2004 8:36 AM 24.9 1100 7.9 5.6 NA8/19/2004 10:49 AM 25.3 955 7.9 7.3 NA8/26/2004 8:43 AM 22.7 1160 8.1 6.8 NA9/2/2004 8:26 AM 23.1 1480 7.8 6.3 NA9/9/2004 9:50 AM 23.5 1130 7.9 7.7 NA9/16/2004 10:27 AM 21.5 1170 8.0 7.8 NA9/23/2004 8:57 AM 18.4 1110 8.1 8.6 NA9/30/2004 8:37 AM 17.3 1190 7.7 4.6 NA10/7/2004 8:09 AM 18.8 1280 8.0 12.1
10/14/2004 8:28 AM 17.6 1210 8.0 8.610/21/2004 9:20 AM 14.8 957 NA 9.510/28/2004 8:29 AM 12.8 1060 7.6 10.911/4/2004 9:08 AM 12.3 1340 7.8 9.3
11/11/2004 8:17 AM 14.0 1400 7.0 8.911/18/2004 8:28 AM 13.5 1250 7.5 9.411/23/2004 11:10 AM 9.5 1330 7.5 10.212/2/2004 8:43 AM 7.2 1590 7.9 11.712/9/2004 8:25 AM 11.2 1660 7.9 10.5
12/16/2004 8:17 AM 11.1 1770 7.8 10.712/22/2004 11:23 AM 9.1 1750 7.7 13.612/29/2004 9:43 AM 10.1 1720 7.7 9.21/6/2005 7:53 AM 9.7 1500 7.8 11.41/13/2005 8:40 AM 9.4 1590 7.7 11.21/20/2005 8:45 AM 9.4 2040 7.4 9.41/27/2005 8:20 AM 11.6 2340 7.6 7.82/3/2005 8:39 AM 10.9 2060 7.6 9.12/10/2005 8:08 AM 12.1 2040 7.7 10.02/17/2005 8:54 AM 14.0 1350 7.6 7.52/24/2005 8:20 AM 14.5 1670 7.6 6.03/3/2005 8:25 AM 15.0 1550 7.6 8.53/10/2005 9:11 AM 18.2 1690 7.6 10.33/17/2005 8:20 AM 16.1 1860 7.8 11.13/24/2005 8:26 AM 14.3 1500 7.4 7.43/31/2005 8:29 AM 14.3 1840 7.6 8.14/7/2005 8:34 AM 17.5 1997 7.6 7.64/14/2005 8:27 AM 14.7 1580 7.8 9.54/21/2005 8:24 AM 16.8 1430 7.9 7.74/28/2005 8:23 AM 17.6 1220 7.8 9.15/5/2005 8:47 AM 19.6 1400 7.5 6.85/12/2005 8:23 AM 18.8 1400 7.5 7.95/19/2005 8:48 AM 20.0 1610 7.4 7.15/26/2005 8:53 AM 24.5 1180 7.1 5.06/2/2005 8:35 AM 21.6 769 7.5 7.36/9/2005 8:07 AM 19.9 808 7.4 5.86/16/2005 8:23 AM 22.2 807 7.5 7.0
8
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
6/23/2005 9:10 AM 22.6 1070 NA 7.66/30/2005 8:36 AM 24.5 886 7.5 6.07/7/2005 8:39 AM 24.1 801 7.6 7.17/13/2005 11:46 AM 28.1 779 7.2 8.67/21/2005 8:24 AM 26.7 911 7.9 5.77/28/2005 8:39 AM 25.8 1010 7.8 6.88/4/2005 8:35 AM 25.6 945 7.7 6.08/11/2005 8:57 AM 24.8 866 7.6 7.18/18/2005 9:04 AM 23.8 940 7.4 6.38/25/2005 8:38 AM 23.3 970 7.7 5.99/1/2005 8:35 AM 22.8 962 7.7 9.19/8/2005 8:42 AM 21.3 1020 7.9 8.79/15/2005 8:25 AM 19.1 925 7.9 8.99/22/2005 9:04 AM 21.3 833 7.8 8.39/29/2005 8:28 AM 19.9 1100 7.7 7.5
170 21 2420 921n 89 7.5 NA NA Mean 78 6 2271 124ian 74 6.9 2420 101rtile 1 60 4.8 2420 64rtile 3 114 8.8 2420 159E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 14 NA 13 NA 13 16 15 27 27Min 1.0 NA 0.5 NA 0.2 0.1 8.2 1.0 2.0Max 15.0 NA 1.0 NA 0.4 0.5 10.0 4.2 7.1Mean 6.0 NA 1.0 NA 0.3 0.5 8.9 2.1 3.6Geo Mean 4.3 NA 0.9 NA 0.3 0.5 8.9 2.0 3.5Median 5.4 NA 1.0 NA 0.3 0.5 9.0 2.0 3.3Quartile 1 2.4 NA 1.0 NA 0.2 0.5 8.6 1.6 2.8Quartile 3 7.9 NA 1.0 NA 0.4 0.5 9.2 2.5 4.3NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
13
E1: 541MER531 – Salt Slough @ Lander Avenue continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
19
E2: 541MER536 – Mud Slough Upstream of SLD Terminus Station Code:541MER536
Location: Latitude 37.25417, Longitude -120.90694
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/5/2000 11:01 AM 20.9 738 7.710/12/2000 12:45 PM 17.9 718 7.810/19/2000 9:30 AM 17.9 796 7.710/26/2000 4:10 PM 14.5 901 7.511/2/2000 10:35 AM 15.0 978 7.611/9/2000 11:35 AM 13.3 1110 7.7
11/16/2000 10:55 AM 10.7 1290 7.511/21/2000 8:50 AM 9.9 1340 7.911/30/2000 12:35 PM 11.6 1320 7.812/7/2000 10:50 AM 9.6 1430 7.9
12/12/2000 10:15 AM 11.6 1440 7.612/21/2000 12:25 PM 10.3 1490 7.812/28/2000 10:27 AM 7.8 1590 7.71/4/2001 10:30 AM 8.0 1750 7.91/11/2001 12:01 PM 8.9 1640 6.91/18/2001 11:40 AM 7.6 1630 7.61/25/2001 11:47 AM 9.7 1690 7.92/1/2001 12:04 PM 8.6 1750 7.32/8/2001 11:35 AM 8.4 1890 8.02/15/2001 12:25 PM 11.6 1840 8.22/22/2001 1:20 PM 12.7 1960 7.93/1/2001 10:15 AM 12.1 1940 7.83/8/2001 10:55 AM 16.6 1750 7.73/15/2001 12:40 PM 17.5 1960 7.93/22/2001 12:55 PM 20.8 2140 7.93/29/2001 11:48 AM 20.4 2700 8.14/5/2001 1:00 PM 18.0 2330 8.54/12/2001 11:07 AM 14.8 1890 8.04/19/2001 12:40 PM 18.3 2460 8.34/26/2001 11:20 AM 23.8 3400 8.05/3/2001 11:10 AM 16.6 1880 8.05/10/2001 10:03 AM 23.3 1460 7.85/17/2001 1:07 PM 26.5 1450 7.45/24/2001 11:37 AM 26.6 1910 7.65/31/2001 11:30 AM 29.1 1580 8.16/6/2001 NA 25.0 2590 8.0 9.46/7/2001 1:32 PM 28.1 1710 8.3 6.86/13/2001 8:34 AM 18.0 2960 6.5 7.7
20
E2: 541MER536 – Mud Slough Upstream of SLD Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
6/14/2001 11:21 AM 23.1 3240 8.1 13.16/20/2001 11:08 AM 27.5 2290 8.1 13.16/21/2001 2:35 PM 32.8 2660 8.4 15.76/28/2001 1:58 PM 29.3 2570 8.5 16.67/5/2001 10:18 AM 25.7 1670 7.8 NA7/11/2001 1:05 PM 28.1 2350 8.2 17.07/19/2001 1:40 PM 29.2 2790 8.3 13.27/26/2001 9:18 AM 23.1 2200 7.9 10.78/2/2001 11:00 AM 24.4 2000 8.3 11.38/9/2001 9:51 AM 23.2 3170 7.9 8.08/16/2001 11:32 AM 25.6 1390 8.0 7.88/23/2001 9:54 AM 22.7 812 8.1 8.28/30/2001 10:56 AM 23.3 1430 7.7 6.49/6/2001 9:31 AM 21.9 1200 7.8 4.99/13/2001 10:53 AM 23.4 1230 7.8 7.79/20/2001 9:56 AM 22.4 1120 7.8 5.39/27/2001 10:30 AM 21.5 1020 7.6 4.310/4/2001 9:17 AM 22.0 1130 7.5 2.1
10/11/2001 10:41 AM 18.3 1130 7.6 4.210/18/2001 10:30 AM 18.7 1230 7.5 4.410/25/2001 11:19 AM 15.8 1420 7.7 6.311/1/2001 11:17 AM 17.1 1330 7.8 7.011/8/2001 11:19 AM 15.4 1450 8.1 7.3
11/15/2001 9:51 AM 15.5 1250 7.8 6.011/20/2001 1:52 PM 15.0 1420 7.9 8.711/29/2001 9:55 AM 10.9 1540 NA NA12/6/2001 10:29 AM 9.9 1590 7.9 9.9
12/13/2001 10:13 AM 8.8 2110 8.0 10.612/20/2001 11:37 AM 9.7 1960 8.1 12.112/27/2001 2:10 PM 10.3 1920 7.9 11.71/3/2002 10:57 AM 12.9 1700 7.7 8.41/10/2002 10:14 AM 11.7 1880 7.9 9.51/17/2002 10:05 AM 6.6 2090 7.9 11.11/24/2002 12:41 PM 8.2 2300 7.9 12.11/31/2002 12:20 PM 7.0 2240 8.2 13.52/7/2002 9:48 AM 10.6 2080 8.1 10.82/14/2002 10:08 AM 11.5 2250 7.9 8.42/21/2002 11:12 AM 14.7 2240 7.8 9.02/28/2002 10:46 AM 15.9 2160 7.9 7.43/7/2002 9:17 AM 14.6 2290 8.1 9.1
21
E2: 541MER536 – Mud Slough Upstream of SLD Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
3/14/2002 10:31 AM 11.8 2820 7.9 11.03/21/2002 10:27 AM 15.6 2870 8.4 8.73/28/2002 12:30 PM 19.1 3200 8.4 9.54/4/2002 9:28 AM 17.8 3290 8.1 7.94/11/2002 10:17 AM 18.9 3820 8.1 10.44/18/2002 8:56 AM 14.9 2080 8.0 9.14/25/2002 10:39 AM 20.5 1410 7.8 8.05/2/2002 9:07 AM 15.6 3050 8.2 12.35/9/2002 10:59 AM 20.5 1260 8.2 11.25/16/2002 10:30 AM 21.7 1530 7.1 NA NA5/23/2002 8:10 AM 16.6 1660 8.0 NA5/30/2002 1:24 PM 31.4 2580 8.3 14.06/6/2002 9:14 AM 23.9 1590 8.0 NA6/13/2002 11:49 AM 25.2 1940 8.3 NA6/20/2002 9:20 AM 23.8 1190 8.5 NA6/27/2002 10:37 AM 24.6 2890 8.2 11.07/3/2002 11:25 AM 26.4 2420 8.6 NA7/11/2002 12:58 PM 29.8 1620 8.3 NA7/18/2002 10:42 AM 25.3 1710 8.3 10.9 68.97/25/2002 9:12 AM 24.0 853 7.9 7.88/1/2002 10:17 AM 26.3 1150 8.3 9.48/8/2002 10:45 AM 23.8 1250 8.7 11.28/15/2002 9:30 AM 23.3 1350 8.1 9.58/22/2002 9:28 AM 21.9 785 7.8 7.58/29/2002 9:22 AM 21.4 1310 8.3 NA9/5/2002 9:10 AM 21.2 1270 8.0 7.89/12/2002 9:37 AM 21.8 1290 8.0 8.99/19/2002 9:43 AM 21.7 1120 8.1 9.1 NA9/26/2002 12:22 PM 25.0 972 7.8 9.310/3/2002 9:58 AM 15.1 1190 7.9 12.0
10/10/2002 1:10 PM 23.4 1360 8.3 9.810/17/2002 9:30 AM 16.6 937 8.1 8.7 68.210/24/2002 10:57 AM 15.9 989 7.7 7.210/31/2002 10:30 AM 14.3 1200 7.7 4.8 15.311/7/2002 10:13 AM 14.0 1330 7.7 5.7
150 27 2420 2420n 33 11 NA NA Mean 24 9 2295 179ian 22 10 2420 152rtile 1 14 8.3 2420 96rtile 3 30 13 2420 326E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
E2: 541MER536 – Mud Slough Upstream of SLD Terminus continued…
10/25/2001 2.5 6.511/29/2001 NA NA NA 0.2 12 1.5 3.312/27/2001 NA 0.8 0.2 0.1 7.2 1.2 31/31/2002 NA NA 0.2 NA NA 2.2 3.92/28/2002 NA NA NA 0.3 NA 2.5 54/25/2002 NA NA 0.3 NA 8.2 3.3 5.45/30/2002 NA NA NA 0.2 NA 2.5 3.96/20/2002 NA 1 0.3 0.1 7.4 2.4 4.37/18/2002 <2.0 <2.0 NA <1.0 8.87/25/2002 4.1 <2.0 0.2 <1.0 6.38/15/2002 <2.0 <2.0 0.3 <1.0 7.28/29/2002 NA 1.4 0.3 0.1 9 4.7 89/26/2002 NA 0.8 NA 0.1 7.4 2.6 5
10/31/2002 NA 1.2 0.3 0.3 6.4 3.3 6.5
29
E2: 541MER536 – Mud Slough Upstream of SLD Terminus continued…
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
E2: 541MER536 – Mud Slough Upstream of SLD Terminus continued…
Date Result Control Result Control
Result (million/m
l)
Control (million/
ml) MDD(%)6/18/2001 100 100 100 90
Count 1 1 1 1 N/A N/A N/A
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
38
E3: 541MER535 – San Luis Drain @ Terminus Station Code:541MER535
Location: Latitude 37.25944, Longitude -120.90389
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/5/2000 10:30 AM 21.1 4600 7.110/12/2000 11:30 AM 17.5 3340 8.010/19/2000 9:05 AM 18.2 3390 7.810/26/2000 3:00 PM 14.6 4320 6.811/2/2000 10:10 AM 15.6 3990 6.911/9/2000 10:00 AM 13.1 4520 8.2
11/16/2000 10:40 AM 10.9 4530 6.711/21/2000 8:10 AM 9.5 4450 7.711/30/2000 11:30 AM 11.9 4240 7.512/7/2000 9:35 AM 9.7 3840 7.4
12/12/2000 9:35 AM 12.1 4280 7.212/21/2000 11:40 AM 11.2 3890 7.912/28/2000 11:16 AM 9.7 4330 7.81/4/2001 9:40 AM 7.8 4510 7.11/11/2001 11:30 AM 8.9 4080 5.51/18/2001 9:45 AM 7.7 4420 5.91/25/2001 11:12 AM 9.9 4390 7.82/1/2001 10:53 AM 8.4 4380 7.32/8/2001 10:50 AM 12.2 4170 8.12/15/2001 11:30 AM 10.8 4360 8.12/22/2001 12:33 PM 12.9 4710 7.83/1/2001 9:25 AM 12.1 4710 7.43/8/2001 10:20 AM 16.1 4520 7.13/15/2001 11:45 AM 17.2 5430 8.33/22/2001 12:18 PM 20.4 5730 8.53/29/2001 10:21 AM 20.3 5250 8.34/5/2001 12:30 PM 17.0 5680 8.14/12/2001 10:03 AM 14.0 4890 7.44/19/2001 12:10 PM 17.5 5710 8.34/26/2001 9:00 AM 21.3 5230 8.35/3/2001 10:45 AM 18.1 5190 7.75/10/2001 9:25 AM 24.3 4460 8.15/17/2001 12:14 PM 25.1 4280 7.85/24/2001 10:03 AM 26.5 4130 7.85/31/2001 10:40 AM 26.1 4470 7.66/6/2001 11:25 AM 22.8 4550 7.6 3.26/7/2001 12:15 PM 27.8 4810 8.5 11.1
39
E3: 541MER535 – San Luis Drain @ Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
6/13/2001 9:05 AM 21.1 4540 8.6 10.16/14/2001 10:32 AM 21.1 4440 8.4 11.96/20/2001 10:32 AM 27.2 4520 8.3 11.86/21/2001 12:42 PM 28.0 4680 8.4 13.56/28/2001 12:43 PM 24.1 4280 8.4 11.97/5/2001 9:17 AM 26.4 4200 8.2 9.27/11/2001 11:32 AM 25.4 3770 8.3 15.17/19/2001 1:04 PM 24.7 4420 8.4 13.07/26/2001 8:45 AM 24.9 4440 8.2 11.58/2/2001 10:31 AM 24.8 3830 8.3 13.38/9/2001 9:22 AM 26.7 3550 8.3 12.28/16/2001 10:57 AM 24.8 3770 8.4 12.78/23/2001 9:19 AM 22.7 3650 8.4 11.98/30/2001 9:29 AM 24.0 4260 8.4 12.59/6/2001 8:57 AM 24.2 3810 8.0 9.79/13/2001 9:27 AM 22.5 4260 8.6 12.59/20/2001 10:16 AM 23.7 4570 8.4 10.99/27/2001 11:24 AM 23.2 5100 8.2 8.810/4/2001 8:51 AM 22.9 4090 8.1 10.3
10/11/2001 9:43 AM 18.9 4340 8.6 12.810/18/2001 9:40 AM 19.4 3940 8.2 16.110/25/2001 9:39 AM 16.4 4250 8.3 13.411/1/2001 10:50 AM 17.6 4000 8.2 13.311/8/2001 9:35 AM 15.7 4090 8.8 14.1
11/15/2001 9:25 AM 16.0 3610 7.9 10.411/20/2001 11:41 AM 14.9 3510 7.5 8.911/29/2001 8:30 AM 9.3 4350 NA NA12/6/2001 9:15 AM 10.2 4320 7.8 12.4
12/13/2001 9:34 AM 9.3 4710 8.1 12.912/20/2001 10:53 AM 9.1 4590 8.1 12.512/27/2001 1:15 PM 10.1 4170 7.9 13.81/3/2002 10:16 AM 12.9 4210 7.9 12.11/10/2002 9:45 AM 12.0 4260 7.7 11.81/17/2002 8:44 AM 8.3 4550 8.0 13.01/24/2002 1:05 PM 8.2 4970 8.1 13.51/31/2002 11:26 AM 7.7 4680 8.1 14.12/7/2002 9:02 AM 10.3 4290 8.1 13.32/14/2002 9:30 AM 12.0 4580 8.3 11.9
40
E3: 541MER535 – San Luis Drain @ Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
2/21/2002 10:52 AM 14.4 4950 7.8 10.62/28/2002 8:40 AM 15.6 5090 8.3 12.83/7/2002 8:58 AM 14.9 4500 8.4 13.43/14/2002 9:51 AM 13.6 4770 8.6 12.93/21/2002 10:01 AM 14.2 4140 7.8 12.13/28/2002 11:12 AM 17.6 5350 8.5 14.84/4/2002 9:03 AM 19.7 5530 8.7 13.84/11/2002 10:50 AM 19.6 5540 8.8 12.64/18/2002 7:28 AM 16.4 5210 8.7 12.64/25/2002 11:21 AM 20.6 5250 8.5 13.15/2/2002 8:28 AM 17.1 4960 8.4 15.75/9/2002 9:52 AM 19.6 4920 8.5 14.55/16/2002 9:41 AM 21.5 5100 8.5 11.1 15.65/23/2002 7:20 AM 18.0 3860 8.4 NA5/30/2002 2:19 PM 27.2 4060 8.2 12.56/6/2002 8:22 AM 24.9 4500 8.3 NA6/13/2002 11:25 AM 24.1 4430 8.2 NA6/20/2002 8:30 AM 25.1 4010 8.5 NA6/27/2002 9:55 AM 24.7 4340 8.4 15.97/3/2002 10:15 AM 26.7 4310 8.1 NA7/11/2002 12:19 PM 27.3 4370 8.7 NA7/18/2002 9:26 AM 24.9 4260 8.6 15.3 16.57/25/2002 8:42 AM 24.3 3730 8.4 13.78/1/2002 9:32 AM 25.1 3610 8.6 13.18/8/2002 10:17 AM 23.2 3960 8.4 8.48/15/2002 8:47 AM 25.3 3600 8.3 10.58/22/2002 9:08 AM 22.3 3660 8.3 11.58/29/2002 8:45 AM 22.4 3420 7.3 NA9/5/2002 8:48 AM 23.6 3570 8.3 11.59/12/2002 8:37 AM 23.0 3620 8.1 11.89/19/2002 9:08 AM 22.4 4940 8.5 9.8 NA9/26/2002 11:42 AM 23.4 4460 7.8 10.310/3/2002 9:30 AM 15.5 4970 8.4 10.6
10/10/2002 11:47 AM 21.2 5010 8.4 10.810/17/2002 8:54 AM 17.7 3860 8.3 12.0 29.210/24/2002 10:11 AM 16.5 3990 8.1 14.110/31/2002 9:50 AM 15.0 4820 8.1 14.3 23.1
41
E3: 541MER535 – San Luis Drain @ Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
11/7/2002 9:36 AM 14.1 4720 8.3 12.211/14/2002 9:57 AM 14.9 4510 8.0 10.811/21/2002 11:27 AM 13.8 4390 8.3 17.3 31.211/26/2002 11:48 AM 13.3 4240 8.3 17.512/5/2002 9:35 AM 11.2 4880 8.1 13.6 40.1
12/12/2002 9:15 AM 11.5 4830 7.7 13.712/19/2002 8:40 AM 9.8 4540 7.8 11.9 35.512/24/2002 10:17 AM 8.6 4240 7.1 18.71/2/2003 11:40 AM 10.4 4510 7.3 15.01/9/2003 10:26 AM 10.2 4830 7.8 12.41/16/2003 11:08 AM 11.5 4850 7.8 11.5 37.81/23/2003 8:45 AM 11.0 4510 7.3 11.91/30/2003 10:19 AM 12.9 4520 7.9 11.8 44.82/6/2003 10:12 AM 10.4 4610 7.9 13.02/13/2003 11:39 AM 11.8 4510 8.0 11.7 45.62/20/2003 11:17 AM 12.4 4280 8.1 14.3 62.52/27/2003 8:57 AM 13.4 4920 8.0 11.23/6/2003 10:50 AM 15.0 5080 7.7 14.7 NA3/13/2003 10:01 AM 18.1 5520 8.3 13.1 26.53/20/2003 8:44 AM 14.9 5580 8.1 12.3 20.93/27/2003 9:23 AM 16.6 5590 8.4 13.8 22.24/3/2003 12:47 PM 16.6 5430 8.3 17.6 28.44/10/2003 9:01 AM 18.7 5190 8.2 14.1 45.04/17/2003 9:04 AM 16.4 5250 8.1 13.3 44.44/24/2003 9:54 AM 17.1 5130 8.3 12.0 48.25/1/2003 9:21 AM 18.5 5110 8.1 12.4 NA5/8/2003 8:40 AM 17.5 4300 8.3 10.9 65.05/15/2003 8:57 AM 19.8 5190 8.7 15.55/22/2003 9:50 AM 22.8 4810 8.2 15.7 46.85/29/2003 9:35 AM 25.3 4740 8.2 12.86/5/2003 9:22 AM 25.1 4660 8.3 11.2 22.96/12/2003 10:00 AM 21.5 4330 8.3 12.9 35.76/19/2003 9:15 AM 22.7 4510 8.5 6.9 38.26/26/2003 9:25 AM 24.2 4400 8.6 15.2 26.47/3/2003 9:24 AM 24.9 4630 8.5 30.07/10/2003 9:21 AM 24.9 4500 8.5 18.27/17/2003 9:24 AM 26.6 4260 8.9 12.67/24/2003 9:06 AM 27.8 4020 8.4 10.2 22.87/31/2003 9:28 AM 26.7 3610 8.2 11.1 26.3
42
E3: 541MER535 – San Luis Drain @ Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
8/7/2003 9:00 AM 24.5 3700 8.4 11.9 25.88/14/2003 8:49 AM 24.4 3950 8.5 12.38/21/2003 9:01 AM 25.6 4400 8.9 9.4 18.48/28/2003 9:10 AM 25.0 3570 8.4 NA 24.09/4/2003 9:04 AM 25.8 3610 8.3 9.0 20.69/11/2003 10:00 AM 22.7 4020 8.4 10.8 12.79/18/2003 9:19 AM 21.2 4480 8.5 8.3 26.39/25/2003 10:01 AM 22.7 4690 8.7 10.8 28.610/2/2003 9:40 AM 21.8 3990 8.4 14.4 17.310/9/2003 9:22 AM 21.3 4140 8.3 19.9 19.4
10/16/2003 11:22 AM 18.5 4640 8.5 17.3 14.610/23/2003 9:41 AM 20.1 4140 8.3 10.6 15.110/30/2003 8:35 AM 16.7 4410 8.1 9.7 21.911/6/2003 9:07 AM 14.1 4460 8.4 14.5 22.2
11/13/2003 8:36 AM 13.7 4380 8.3 10.0 44.511/20/2003 8:50 AM 13.8 3900 8.2 12.0 NA11/26/2003 8:36 AM 8.9 3970 8.3 13.5 23.412/4/2003 9:02 AM 11.9 4350 7.7 12.2
12/11/2003 8:45 AM 11.1 4030 8.0 14.0 NA12/18/2003 9:17 AM 9.5 4430 8.1 14.3 NA12/23/2003 8:58 AM 10.9 4460 7.9 12.7 NA12/30/2003 9:36 AM 8.5 4020 7.8 13.8 NA1/8/2004 8:21 AM 9.0 4450 7.9 11.0 NA1/15/2004 9:11 AM 10.1 4560 8.0 12.1 NA1/22/2004 9:02 AM 9.5 4410 8.0 20.3 23.41/29/2004 9:04 AM 10.2 4550 7.9 13.4 NA2/5/2004 9:01 AM 10.2 4550 8.1 12.3 25.62/12/2004 8:58 AM 11.1 4290 8.2 14.1 NA2/19/2004 8:58 AM 13.0 3660 7.9 12.0 NA2/26/2004 9:14 AM 12.5 4580 8.0 11.5 NA3/4/2004 9:05 AM 12.7 4810 8.2 11.8 41.23/11/2004 9:27 AM 18.2 5150 8.3 11.7 NA3/18/2004 8:22 AM 20.2 5190 8.0 13.23/25/2004 9:14 AM 18.8 5480 8.5 13.7 21.74/1/2004 9:02 AM 16.8 4660 8.5 12.64/8/2004 8:58 AM 17.9 5470 8.4 11.6 43.04/15/2004 9:17 AM 19.0 5150 8.3 11.5 33.94/22/2004 9:25 AM 17.0 5350 8.5 12.2 70.6
43
E3: 541MER535 – San Luis Drain @ Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
4/29/2004 10:30 AM 19.3 4640 8.6 NA 23.65/6/2004 9:20 AM 23.1 4740 8.2 26.2 30.85/13/2004 9:50 AM 19.5 4160 8.4 25.7 38.95/20/2004 9:20 AM 20.9 4560 8.2 12.0 36.85/27/2004 8:57 AM 21.6 3870 8.2 NA NA6/3/2004 10:00 AM 24.4 4680 8.3 13.9 61.96/10/2004 9:42 AM 20.8 4340 8.6 14.0 52.46/17/2004 9:50 AM 24.0 3620 8.5 13.9 25.66/24/2004 9:30 AM 23.4 4080 8.3 12.9 NA7/1/2004 9:27 AM 22.8 3750 8.0 13.5 NA7/8/2004 9:17 AM 24.9 4380 7.8 12.7 NA7/15/2004 9:25 AM 25.2 4160 7.9 11.2 NA7/22/2004 11:24 AM 27.4 3980 8.3 16.9 NA7/29/2004 9:15 AM 23.4 3490 8.4 12.1 NA8/5/2004 8:46 AM 24.1 3900 8.3 10.6 NA8/12/2004 9:11 AM 26.4 3510 8.4 10.2 NA8/19/2004 11:08 AM 26.4 3250 8.2 13.5 NA8/26/2004 9:48 AM 23.9 3800 8.5 11.8 NA9/2/2004 8:55 AM 25.0 4570 8.1 10.5 NA9/9/2004 10:17 AM 24.7 3870 7.8 11.8 NA9/16/2004 10:48 AM 21.7 4690 8.2 12.1 NA9/23/2004 11:22 AM 20.0 3580 8.4 14.2 NA9/30/2004 9:00 AM 19.7 3760 8.1 10.1 NA10/7/2004 8:37 AM 20.6 3480 7.7 18.5
10/14/2004 8:48 AM 18.8 3630 7.5 13.110/21/2004 10:25 AM 15.9 3510 NA 11.610/28/2004 8:54 AM 13.8 3700 7.7 15.111/4/2004 9:35 AM 13.2 4100 8.4 14.8
11/11/2004 8:41 AM 14.3 4310 7.3 10.411/18/2004 9:01 AM 14.0 4410 7.6 10.111/23/2004 11:36 AM 9.9 4510 7.7 11.812/2/2004 9:12 AM 7.6 4390 8.0 13.512/9/2004 8:47 AM 10.3 4400 8.0 11.7
12/16/2004 8:41 AM 11.7 4170 7.4 11.312/22/2004 11:46 AM 9.1 4610 8.0 14.312/29/2004 10:21 AM 9.2 4070 7.6 12.01/6/2005 8:14 AM 10.1 4150 7.3 12.51/13/2005 10:01 AM 10.1 3390 7.6 6.2
44
E3: 541MER535 – San Luis Drain @ Terminus continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
1/20/2005 9:07 AM 9.3 4860 7.5 11.71/27/2005 9:09 AM 10.9 4690 7.9 12.22/3/2005 9:03 AM 11.7 4710 8.1 11.72/10/2005 8:38 AM 13.2 4950 7.9 12.32/17/2005 9:25 AM 14.6 4570 7.4 10.82/24/2005 9:03 AM 15.3 4620 7.8 11.33/3/2005 8:44 AM 15.9 5230 7.8 12.23/10/2005 9:42 AM 18.9 5540 8.0 16.83/17/2005 8:41 AM 16.9 5960 7.8 17.83/24/2005 8:48 AM 14.8 5060 7.8 14.03/31/2005 8:49 AM 14.5 5570 7.9 14.64/7/2005 9:03 AM 18.1 5720 8.4 12.94/14/2005 8:49 AM 15.2 5770 8.3 12.94/21/2005 8:54 AM 18.2 5610 8.3 13.04/28/2005 8:46 AM 18.6 4730 7.7 15.35/5/2005 9:17 AM 20.8 4620 7.5 11.85/12/2005 8:41 AM 20.1 5350 7.9 12.05/19/2005 9:16 AM 21.7 5410 8.0 12.65/26/2005 9:41 AM 25.1 4080 8.2 11.56/2/2005 9:08 AM 21.4 4670 8.4 10.56/9/2005 8:26 AM 20.5 3970 7.9 13.96/16/2005 8:34 AM 24.1 4310 8.1 13.76/23/2005 9:34 AM 23.9 4430 NA 14.16/30/2005 9:18 AM 25.7 3930 8.5 14.97/7/2005 8:56 AM 25.5 4980 8.5 15.57/13/2005 10:40 AM 28.7 4530 8.7 16.57/21/2005 8:50 AM 27.7 4210 8.1 10.67/28/2005 9:16 AM 27.3 4130 8.5 10.98/4/2005 8:58 AM 27.0 3940 8.2 10.88/11/2005 9:20 AM 26.7 4670 8.4 11.88/18/2005 9:27 AM 24.4 3790 8.0 12.88/25/2005 9:08 AM 25.0 3490 8.4 12.19/1/2005 8:56 AM 24.0 4600 7.6 14.79/8/2005 9:12 AM 23.1 4910 8.4 11.89/15/2005 8:54 AM 20.5 3850 7.6 13.49/22/2005 9:39 AM 22.6 4130 8.3 13.99/29/2005 8:53 AM 21.2 4250 7.9 13.1
45
E3: 541MER535 – San Luis Drain @ Terminus continued…
E3: 541MER535 – San Luis Drain @ Terminus continued…
2 1Max 96 16 2420 770MeaGeo
n 45 8.5 NA NA Mean 43 7 1800 12
MedQua
ian 43 8.8 2420 9rtile 1 36 5.9 1905 6
Quartile 3 52 11 2420 23E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
NOT
NA =INA =DRY
E3: 541MER535 – San Luis Drain @ Terminus continued…
rtile 1 27 8.6 2420 44rtile 3 48 13 2420 101E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
NOT
NA =INA =DRY
E4: 541MER542 – Mud Slough @ San Luis Drain continued…
E4: 541MER542 – Mud Slough @ San Luis Drain continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
3/31/2005 10.0 1.7 0.2 0.4 0.24/28/2005 7.5 1.5 0.2 NA NA5/12/2005 12.0 NA NA 0.3 <0.035/26/2005 4.7 1.5 0.1 0.2 <0.036/16/2005 NA 1.2 NA NA NA6/30/2005 6.8 1.8 0.1 0.2 NA7/13/2005 5.6 1.5 NA NA <0.039/29/2005 2.3 1.6 NA NA <0.03
For values reported as > (greater than), 2420 was used
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
83
APPENDIX F
WESTSIDE BASIN
APPENDIX F: WESTSIDE BASIN F1: 541STC019 – Orestimba Creek @ River Road…………………………………….........03-19 F2: 541STC515 – Salado Creek at HWY 33………………………………………………....20-31 F3: 541STC516 – Del Puerto Creek at Vineyard Avenue……………………………………32-42 F4: 541STC040 – Ingram Creek at River Road…………………………………………...…43-55 F5: 541STC042 – Hospital creek at River Road………………………………………..……56-65 F6: 541STC030 – Grayson Road Drain at Grayson…………………………………...……..66-79
2
F1: 541STC019 – Orestimba Creek @ River Road Station Code:541STC019
Location: Latitude 37.41389, Longitude -121.01417
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/26/2000 1:50 PM 15.2 562 7.811/30/2000 10:20 AM 9.4 583 8.012/28/2000 9:36 AM 5.6 637 8.01/25/2001 10:15 AM 8.2 838 8.42/7/2001 10:41 AM 8.4 769 7.32/22/2001 11:20 AM 11.4 769 8.03/13/2001 11:55 AM 16.4 703 7.93/29/2001 12:50 PM 19.5 848 8.44/18/2001 11:38 AM 17.9 921 7.94/26/2001 12:15 PM 22.6 667 8.05/15/2001 12:13 PM 20.0 607 7.45/31/2001 9:50 AM 23.7 864 7.76/6/2001 9:45 AM 19.8 848 7.4 7.36/13/2001 10:25 AM 19.8 702 8.2 8.36/28/2001 11:24 AM 21.7 720 8.1 7.87/26/2001 10:38 AM 23.3 707 8.0 9.28/2/2001 12:17 PM 22.6 750 7.9 8.28/9/2001 11:03 AM 23.6 775 8.0 7.98/14/2001 11:32 AM 20.1 902 8.1 9.48/16/2001 12:16 PM 22.2 908 8.0 8.98/23/2001 11:29 AM 21.3 895 8.0 9.68/30/2001 12:13 PM 22.0 953 8.1 8.09/6/2001 11:22 AM 20.0 1030 7.9 8.09/13/2001 12:44 PM 19.8 1190 8.4 11.59/20/2001 9:06 AM 18.9 1250 8.0 7.79/27/2001 9:33 AM 18.5 827 7.9 8.010/4/2001 10:13 AM 18.7 946 8.0 9.0
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
19
F2: 541STC515 – Salado Creek at HWY 33 Station Code:541STC515
Location: Latitude 37.48139, Longitude -121.13556
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 2:35 PM 20.0 622 7.711/29/2000 10:30 AM 8.8 1140 6.612/27/2000 10:20 AM 5.1 1420 7.41/24/2001 10:00 AM 10.5 787 7.72/21/2001 10:50 AM 14.0 787 7.83/28/2001 12:25 PM 20.8 969 8.24/25/2001 10:10 AM 21.6 1010 8.05/30/2001 11:45 AM 23.5 843 7.76/27/2001 11:08 AM 20.9 971 8.1 10.07/25/2001 11:27 AM 23.6 922 8.2 8.58/29/2001 12:21 PM 25.3 699 8.0 8.49/26/2001 10:43 AM 19.1 1020 8.2 9.5
10/24/2001 11:46 AM 13.4 1250 8.4 12.911/28/2001 10:30 AM 11.6 830 8.1 11.112/26/2001 10:45 AM 11.7 832 8.5 12.11/30/2002 10:53 AM 7.9 1040 8.3 13.12/27/2002 10:15 AM 14.8 1460 8.1 11.43/27/2002 10:03 AM 13.0 570 7.7 10.24/30/2002 10:47 AM 15.8 841 8.3 11.85/29/2002 10:25 AM 21.7 898 8.0 8.46/19/2002 10:12 AM 20.8 543 7.8 7.77/30/2002 10:35 AM 22.3 824 8.3 8.4 43.58/28/2002 11:00 AM 25.2 762 8.6 NA9/25/2002 11:33 AM 21.7 674 8.3 9.1
10/15/2002 10:05 AM 16.4 811 7.9 9.4 NA10/30/2002 10:23 AM 14.7 714 7.4 10.111/20/2002 10:18 AM 15.1 1030 8.2 11.512/18/2002 9:55 AM 9.7 1250 8.1 11.1 19901/14/2003 12:28 PM 13.0 1450 8.2 11.1 1111/29/2003 10:37 AM 11.3 1320 8.8 14.3 19.13/25/2003 9:40 AM 15.0 741 8.2 11.5 19.24/24/2003 1:19 PM 15.9 454 8.3 10.4 2485/29/2003 12:20 PM 25.4 759 8.1 8.7 33.66/26/2003 11:51 AM 24.5 359 8.4 8.8 27.47/31/2003 12:35 PM INA INA INA INA INA8/28/2003 12:42 PM 22.7 684 8.3 10.6 6309/25/2003 12:40 PM 21.2 732 8.5 9.3 695
10/24/2001 9.1 <2 0.2 <1 12 1.7 3.111/28/2001 NA 1.4 NA 0.2 12 1.2 1.812/26/2001 2 2.81/30/2002 NA 1.3 0.1 0.1 7.3 1 1.62/27/2002 NA 0.6 0.2 0.2 NA 0.3 1.33/27/2002 NA 0.8 NA 0.1 3.9 1.1 2.24/30/2002 NA NA 0.1 0.1 NA 0.5 0.95/29/2002 NA 0.8 NA 0.1 5.3 1.9 36/19/2002 NA 1 0.2 NA 4.5 4.4 6.88/28/2002 NA 1 0.1 0.1 4.8 0.2 0.69/25/2002 NA NA 0.1 0.1 5.8 1.5 2.6
10/30/2002 NA NA <0.05 0.1 3.3 1 1.311/20/2002 NA 1 0.1 0.1 3.912/18/2002 NA 2.4 0.2 0.1 6.5 8.3 141/29/2003 NA NA 0.1 0.1 6.9 1.1 2.2
24
F2: 541STC515 – Salado Creek at HWY 33 continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 12 NA 20 NA 22 24 22 23 23Min 2.9 NA 0.6 NA 0.03 0.1 3.3 0.2 0.6Max 23.0 NA 2.4 NA 0.4 0.5 12.0 8.3 14.9Mean 11.1 NA 1.1 NA 0.2 0.3 6.9 2.0 3.5Geo Mean 9.5 NA 1.1 NA 0.2 0.2 6.4 1.4 2.5Median 9.5 NA 1.0 NA 0.2 0.4 6.6 1.5 2.6Quartile 1 6.9 NA 1.0 NA 0.1 0.1 4.9 1.0 1.5Quartile 3 15.5 NA 1.0 NA 0.2 0.5 7.9 1.9 3.1NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
31
F3: 541STC516 – Del Puerto Creek at Vineyard Avenue Station Code:541STC516
Location: Latitude 37.52139, Longitude -121.14861
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 2:15 PM 20.6 594 8.011/29/2000 10:11 AM 9.3 1100 7.612/27/2000 10:30 AM 6.7 819 8.01/24/2001 DRY DRY DRY DRY2/7/2001 12:02 PM 8.5 637 8.12/21/2001 11:28 AM 12.0 1030 8.23/13/2001 12:18 PM 17.4 792 7.63/28/2001 11:50 AM 21.5 1280 7.94/18/2001 12:40 PM 21.3 956 8.34/25/2001 9:54 AM 20.4 669 7.95/15/2001 12:45 PM 23.8 572 7.95/30/2001 11:30 AM 24.7 1190 7.26/5/2001 9:23 AM 19.0 1350 8.1 8.16/19/2001 10:22 AM 24.3 1350 7.9 8.56/27/2001 10:45 AM 21.1 1130 7.8 8.07/25/2001 11:02 AM 25.0 988 8.1 8.38/14/2001 11:57 AM 21.7 1350 7.8 4.58/29/2001 12:05 PM 23.8 1020 7.9 6.49/26/2001 10:28 AM 18.0 690 7.3 7.3
10/24/2001 11:22 AM 12.5 743 8.1 11.111/28/2001 10:10 AM DRY DRY DRY DRY12/26/2001 10:35 AM DRY DRY DRY DRY1/30/2002 DRY DRY DRY DRY DRY2/27/2002 DRY DRY DRY DRY DRY3/27/2002 9:47 AM 13.2 1290 7.8 12.64/30/2002 10:33 AM 18.0 1090 8.2 11.05/29/2002 10:08 AM 21.8 1010 7.9 8.36/19/2002 9:53 AM 20.5 1090 7.8 6.87/30/2002 10:49 AM 21.9 771 8.2 7.1 16.88/28/2002 10:50 AM 23.8 907 7.8 NA9/25/2002 11:09 AM 20.9 1110 7.8 8.6
10/30/2003 >2419.6 >2419.611/20/2003 >2419.6 >2419.61/29/2004 1300 932/26/2004 >2419.6 >2419.63/24/2004 >2419.6 12034/29/2004 >2419.6 >2419.65/27/2004 >2419.6 17336/24/2004 >2419.6 24207/29/2004 NA NA >2419.6 >2419.68/26/2004 NA NA >2419.6 1949/30/2004 NA NA >2419.6 127
10/28/2004 NA 9.1 >2419.6 10111/2/2004 22 5.4 >2419.6 1986
11/16/2004 40 4.8 >2419.6 1553
35
F3: 541STC516 – Del Puerto Creek at Vineyard Avenue continued…
10/24/2001 5.0 <2 0.1 <1 5.3 1.1 1.911/28/2001 NA 4.9 NA 3.5 163/27/2002 NA 0.9 NA 0.1 5.6 2.2 3.64/30/2002 NA NA 0.3 0.2 NA 1.5 2.55/29/2002 NA 1.4 NA 0.3 7.4 3.1 4.66/19/2002 NA 2.3 0.6 NA 6.1 6.2 11.58/28/2002 NA 16 0.3 0.2 5.7 1.9 8.29/25/2002 NA NA 0.3 0.3 7.5 1.2 2.0
10/30/2002 NA NA 0.2 0.1 2.8 0.9 1.512/18/2002 NA 0.7 0.1 0.1 2.6 0.9 1.3
Count 11 NA 16 NA 17 19 18 17 17Min 1.0 NA 0.7 NA 0.1 0.1 2.6 0.7 0.9Max 73.0 NA 16.0 NA 0.6 3.5 16.0 6.9 12.0Mean 19.5 NA 2.5 NA 0.2 0.5 6.7 2.2 4.2Geo Mean 11.0 NA 1.6 NA 0.2 0.4 6.1 1.7 3.0Median 8.5 NA 1.0 NA 0.2 0.5 5.9 1.4 2.2Quartile 1 6.2 NA 1.0 NA 0.1 0.3 5.4 0.9 1.5Quartile 3 28.5 NA 2.3 NA 0.3 0.5 7.5 3.1 6.2NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
38
F3: 541STC516 – Del Puerto Creek at Vineyard Avenue continued…
Count 7 7 6 6 N/A N/A N/A* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
42
F4: 541STC040 – Ingram Creek at River Road Station Code:541STC040
Location: Latitude 37.60028, Longitude -121.22417
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 1:25 PM 16.9 745 6.511/29/2000 8:50 AM 11.9 1980 6.312/27/2000 12:00 PM 11.1 1940 7.91/24/2001 11:27 AM 13.4 2140 6.92/21/2001 1:30 PM 16.3 1960 7.73/28/2001 10:00 AM 18.7 1230 8.04/25/2001 8:25 AM 16.5 908 7.75/30/2001 9:40 AM 19.7 1000 7.56/5/2001 9:04 AM 18.0 1220 8.1 8.46/19/2001 9:55 AM 20.8 963 7.6 8.56/27/2001 8:59 AM 20.1 951 7.9 8.97/25/2001 9:39 AM 20.9 1060 7.9 8.68/29/2001 9:21 AM 21.4 1350 7.9 7.99/26/2001 9:02 AM 17.7 1370 7.9 9.3
10/24/2001 9:45 AM 15.6 1370 7.9 9.511/28/2001 9:18 AM 11.2 2050 8.0 10.312/26/2001 9:37 AM 11.4 2070 8.0 10.41/30/2002 9:24 AM 4.5 2190 8.1 13.22/27/2002 8:48 AM 11.3 1040 7.9 10.23/27/2002 8:35 AM 11.9 1020 8.3 11.24/30/2002 9:32 AM 13.9 1090 7.8 10.65/29/2002 8:53 AM 19.5 1110 7.9 9.46/19/2002 12:19 PM 25.2 1300 8.1 7.67/30/2002 11:09 AM 23.7 1070 8.0 8.0 8408/28/2002 9:36 AM 21.1 1220 8.0 NA9/25/2002 9:41 AM 18.2 963 7.8 9.0
10/15/2002 11:23 AM 16.3 1550 7.8 9.8 NA10/30/2002 8:45 AM 13.5 771 7.2 10.111/20/2002 8:39 AM 13.0 676 7.7 10.612/18/2002 8:38 AM 10.6 1650 7.4 7.7 1031/15/2003 10:33 AM 13.5 2110 8.0 9.6 57.61/29/2003 9:15 AM 11.9 2100 7.6 10.0 63.53/25/2003 8:34 AM 11.4 1390 7.6 10.7 1394/22/2003 11:22 AM 16.9 868 8.0 9.7 4755/27/2003 12:21 PM 22.4 1520 7.7 8.8 22.16/24/2003 8:43 AM 17.9 1030 8.3 10.8 10907/29/2003 10:06 AM 24.9 924 8.0 8.1 12.98/26/2003 11:31 AM 24.6 1030 8.0 7.7 11509/23/2003 11:15 AM 20.5 1430 7.8 9.5 274
43
F4: 541STC040 – Ingram Creek at River Road continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/28/2003 1:07 PM 17.1 1100 8.1 13.0 3.611/18/2003 12:30 PM 16.0 1970 8.3 14.5 27.91/28/2004 10:30 AM DRY DRY DRY DRY DRY2/24/2004 11:20 AM 14.0 2130 8.0 9.5 24.03/24/2004 9:38 AM 13.4 2040 7.8 8.7 1954/28/2004 9:42 AM 17.9 791 7.8 11.4 5805/26/2004 11:35 AM 22.2 1460 8.0 8.3 19006/23/2004 10:28 AM 21.9 104 8.1 9.0 NA7/28/2004 11:11 AM 24.6 1150 8.1 9.4 NA8/25/2004 11:25 AM 23.0 912 8.0 8.2 NA9/29/2004 11:16 AM 17.3 1350 7.8 7.7 NA
10/27/2004 10:56 AM 13.4 802 7.9 8.711/2/2004 7:49 AM 13.5 823 7.8 12.9
11/16/2004 8:30 AM 14.3 709 7.5 10.012/8/2004 8:04 AM 12.2 1730 7.0 10.2
12/21/2004 7:31 AM 9.7 1760 7.7 9.31/4/2005 7:50 AM 11.5 1240 7.9 9.71/18/2005 7:57 AM 12.9 1810 7.7 13.52/1/2005 7:51 AM 10.9 1950 7.7 8.32/15/2005 7:53 AM 14.0 101 7.5 10.43/8/2005 7:59 AM 13.8 1970 7.8 9.63/23/2005 8:00 AM 12.6 1240 8.1 9.74/5/2005 8:03 AM 12.4 107 8.0 7.04/19/2005 8:05 AM 9.2 531 7.0 11.25/3/2005 7:45 AM 14.1 448 7.8 11.55/17/2005 7:58 AM 14.7 483 7.8 10.06/8/2005 8:12 AM 16.6 348 7.7 9.56/21/2005 8:13 AM 17.9 794 7.4 9.27/6/2005 10:18 AM 21.4 585 7.7 8.07/19/2005 8:53 AM 22.2 712 7.8 7.88/2/2005 10:11 AM 24.5 835 7.9 8.18/16/2005 10:30 AM 22.8 789 7.9 8.79/6/2005 10:47 AM 21.6 699 8.0 10.49/20/2005 9:57 AM 18.9 695 7.6 12.5
rtile 1 22 2.8 242Qua 0 131rtile 3 1100 6.2 2420 463E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
QuaNOT
NA =INA =DRY
F4: 541STC040 – Ingram Creek at River Road continued…
10/24/2001 37 <2 0.2 <1 4.3 0.6 111/28/2001 NA 1.9 NA <0.03 4.8 0.2 0.312/26/2001 NA 0.1 <0.05 <0.03 1.3 0.4 0.71/30/2002 NA 3.3 <0.05 <0.03 2.5 0.2 0.32/27/2002 NA 1.1 0.1 <0.03 NA 1.7 3.33/27/2002 NA 1.8 NA 0.4 12 3.1 5.14/30/2002 NA NA 0.3 0.2 NA 2.6 4.35/29/2002 NA 1.4 NA 0.2 6.1 2 3.16/19/2002 NA 5.8 0.5 NA 7.8 7.6 15.88/28/2002 NA 3.5 0.5 0.2 5.2 3.2 6.39/25/2002 NA NA 0.2 0.2 6.2 1.7 3.2
10/30/2002 NA NA 0.1 0.1 2.8 0.7 111/20/2002 NA 0.9 0.1 0.1 3.412/18/2002 NA 4.2 0.5 0.3 8.5 7.4 10.51/29/2003 NA NA <0.05 <0.03 0.9 0.3 0.6
47
F4: 541STC040 – Ingram Creek at River Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 12 NA 21 NA 23 25 23 23 23Min 2.3 NA 0.1 NA 0.03 0.02 0.9 0.2 0.3Max 74.0 NA 5.8 NA 1.4 0.5 15.0 7.6 15.8Mean 34.7 NA 2.0 NA 0.3 0.3 6.6 2.2 3.7Geo Mean 24.6 NA 1.5 NA 0.2 0.2 5.1 1.3 2.1Median 22.5 NA 1.8 NA 0.2 0.4 5.2 1.7 3.1Quartile 1 16.3 NA 1.0 NA 0.1 0.1 3.0 0.6 0.8Quartile 3 62.0 NA 2.4 NA 0.5 0.5 10.1 3.1 5.0NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
48
F4: 541STC040 – Ingram Creek at River Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
55
F5: 541STC042 – Hospital creek at River Road Station Code:541STC042
Location: Latitude 37.61056, Longitude -121.22861
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 1:05 PM 16.0 694 8.111/29/2000 DRY DRY DRY DRY12/27/2000 12:20 PM DRY DRY DRY1/24/2001 11:43 AM 8.8 353 7.52/10/2001 12:50 PM DRY DRY DRY2/11/2001 2:35 AM DRY DRY DRY2/21/2001 1:35 PM DRY DRY DRY3/28/2001 9:50 AM 15.1 1080 7.74/25/2001 8:10 AM 17.1 789 7.95/30/2001 9:20 AM 20.3 1150 7.16/5/2001 8:59 AM 17.4 991 8.1 7.76/19/2001 9:45 AM 20.8 1240 7.6 7.96/27/2001 8:52 AM 19.8 946 8.1 9.37/25/2001 9:30 AM 20.5 916 8.2 9.08/29/2001 9:49 AM 21.0 1050 7.7 7.79/26/2001 8:46 AM 16.4 1190 7.7 9.22/27/2002 DRY DRY DRY DRY DRY3/27/2002 8:20 AM 12.6 1220 8.4 10.54/30/2002 9:24 AM 11.8 651 7.6 11.35/29/2002 8:42 AM 19.1 712 8.0 9.56/19/2002 8:44 AM 19.8 208 7.7 8.57/30/2002 11:18 AM 22.1 75 8.3 8.8 3008/28/2002 9:30 AM 19.8 1380 7.2 NA9/25/2002 9:20 AM 19.9 662 8.1 9.3
10/15/2002 11:32 AM 15.7 962 7.9 10.1 NA10/30/2002 8:29 AM DRY DRY DRY DRY1/15/2003 DRY DRY DRY DRY DRY DRY3/25/2003 8:27 AM 12.2 615 7.9 11.5 2084/22/2003 11:10 AM 14.4 511 8.1 9.8 3655/27/2003 12:05 PM 23.8 833 7.9 8.4 53.46/24/2003 8:56 AM 17.5 877 7.6 9.0 80.67/29/2003 10:14 AM 24.4 721 7.9 8.9 6.88/26/2003 11:24 AM 25.3 385 8.2 7.8 1089/23/2003 11:06 AM 22.0 611 7.9 7.9 355
Count 15 18 33 33Min 27 2.8 691 8Max 3300 23 2420 2420Mean 900 7.6 NA NAGeo Mean 310 6.2 2330 353Median 420 5.3 2420 272Quartile 1 85 4.0 2420 162Quartile 3 1100 9.3 2420 691NOTE: For values reported as < (less than), half the detection limit was used
For values reported as > (greater than), 2420 was used
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
59
60
F5: 541STC042 – Hospital creek at River Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
10/24/2000 9.7 3.4 4 <1 4 3.3 51/24/2001 8.7 <2 0.3 <1 6.8 3.6 83/28/2001 11 <2 0.5 <1 11 1.6 2.74/25/2001 7.1 <2 0.1 <1 4.8 1.1 1.95/30/2001 11 <2 0.2 <1 11 4 6.56/27/2001 18 <2 0.6 <1 12 0.5 18/29/2001 12 <2 0.7 <1 NA9/26/2001 25 4.2 0.5 <1 133/27/2002 NA 1.7 NA 0.1 6.4 0.5 14/30/2002 NA NA 0.6 0.5 NA 6.7 125/29/2002 NA 1 NA 0.3 8.3 4 66/19/2002 NA 2.1 0.4 NA 8.1 8.3 13.78/28/2002 NA 2.5 0.4 0.4 5.4 1.3 2.69/25/2002 NA NA 0.4 NA 5.7 0.9 1.4
Count 8 NA 12 NA 12 12 12 12 12Min 7.1 NA 1.0 NA 0.1 0.1 4.0 0.5 1.0Max 25.0 NA 4.2 NA 4.0 0.5 13.0 8.3 13.7Mean 12.8 NA 1.7 NA 0.7 0.4 8.0 3.0 5.2Geo Mean 11.9 NA 1.5 NA 0.5 0.4 7.5 2.0 3.6Median 11.0 NA 1.0 NA 0.5 0.5 7.5 2.5 3.9Quartile 1 9.5 NA 1.0 NA 0.4 0.5 5.6 1.1 1.8Quartile 3 13.5 NA 2.2 NA 0.6 0.5 11.0 4.0 6.9NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
61
F5: 541STC042 – Hospital creek at River Road continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
65
F6: 541STC030 – Grayson Road Drain at Grayson Station Code:541STC030
Location: Latitude 37.56194, Longitude -121.17417
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 1:45 PM 20.1 671 7.711/29/2000 9:10 AM 12.3 1140 7.312/27/2000 10:55 AM 7.1 627 8.11/24/2001 DRY DRY DRY DRY2/21/2001 12:10 PM 13.3 1370 8.53/28/2001 10:30 AM 18.2 799 7.94/25/2001 8:47 AM 17.9 728 8.15/30/2001 10:05 AM 20.3 960 7.66/27/2001 9:25 AM 20.7 308 8.0 10.17/25/2001 9:57 AM 21.3 1120 8.2 9.08/29/2001 10:12 AM 22.6 806 8.0 8.69/26/2001 9:22 AM 20.8 947 8.1 9.2
10/24/2001 10:10 AM 13.8 958 8.2 10.311/28/2001 9:31 AM DRY DRY DRY DRY12/26/2001 9:59 AM DRY DRY DRY DRY1/30/2002 9:52 AM 8.6 826 7.7 9.52/27/2002 9:11 AM 14.1 1280 8.0 10.03/27/2002 8:52 AM 14.7 1060 8.2 10.54/30/2002 8:48 AM 13.5 964 7.7 9.85/29/2002 9:11 AM 19.5 946 7.9 9.36/19/2002 9:01 AM 19.6 340 8.1 8.87/31/2002 8:27 AM 21.7 919 7.5 8.6 5158/28/2002 9:55 AM 22.1 1330 8.1 NA9/25/2002 9:58 AM 18.9 1460 7.6 NA
10/24/2001 <2 <2 0.4 <1 5.5 1.9 3.711/28/2001 NA 0.2 NA <0.03 2.912/26/2001 NA 0.4 <0.05 <0.03 4.51/30/2002 NA 13 2.9 2.5 15 7.5 162/27/2002 NA 0.5 0.1 0.1 NA 0.6 13/27/2002 NA 0.9 NA NA 2.8 0.8 1.54/30/2002 NA NA 2.2 0.9 NA 8.5 16.85/29/2002 NA 2 NA 0.4 8.2 8.4 15.46/19/2002 NA 0.7 0.3 NA 3.3 1.1 1.68/28/2002 NA 2 0.7 0.2 6.1 3.4 6.79/25/2002 NA NA 0.4 0.4 14 8.4 16.9
10/30/2002 NA NA 0.2 0.1 2.7 1.2 1.911/20/2002 NA 0.8 0.2 0.1 3.6
71
F6: 541STC030 – Grayson Road Drain at Grayson continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 11 NA 19 NA 20 21 20 18 18Min 1.0 NA 0.2 NA 0.03 0.02 2.7 0.6 1.0Max 30.0 NA 13.0 NA 2.9 2.5 15.0 8.5 16.9Mean 11.1 NA 1.9 NA 0.6 0.5 7.0 3.3 6.3Geo Mean 8.4 NA 1.1 NA 0.3 0.3 6.0 2.2 4.0Median 8.7 NA 1.0 NA 0.3 0.5 5.8 2.0 3.7Quartile 1 6.2 NA 0.9 NA 0.2 0.2 4.2 0.9 1.7Quartile 3 13.5 NA 1.5 NA 0.5 0.5 8.4 4.8 7.5NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
72
F6: 541STC030 – Grayson Road Drain at Grayson continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
79
APPENDIX G
SOUTH DELTA BASIN
APPENDIX G: SOUTH DELTA BASIN G1: 544SJC001 – New Jerusalem Tile Drain……………………………………….........03-17 G2: 544SJC505 – Tom Paine Slough at Paradise Road………………………...…..……18-28 G3: 544SJC506 – Old River at Tracy Blvd.………………………………….…..………29-39 G4: 544SJC509 – Mt House Creek @ Mt. House Parkway………………….………….40-47
2
G1: 544SJC001 – New Jerusalem Tile Drain Station Code:544SJC001
10/23/2001 11:23 AM 19.5 2440 7.9 9.711/27/2001 11:15 AM 19.0 1340 8.0 9.212/26/2001 1:12 PM 13.6 2670 8.2 NA1/29/2002 10:41 AM 17.3 2790 8.1 11.22/26/2002 10:41 AM 17.5 2590 8.0 9.33/26/2002 12:20 PM 15.0 1730 7.9 10.14/23/2002 1:12 PM 17.1 2570 7.5 10.15/28/2002 11:10 AM 17.7 2390 7.5 11.86/18/2002 11:18 AM 17.9 2560 7.4 9.17/31/2002 9:20 AM 18.5 2560 7.6 8.9 2.48/27/2002 NA 20.3 2370 NA NA9/24/2002 11:41 AM 19.3 2430 7.6 10.1
10/15/2002 8:40 AM 19.2 2280 7.6 9.2 0.210/29/2002 1:15 PM 19.2 2290 7.7 9.2 0.211/19/2002 11:01 AM 19.0 2260 7.7 9.812/17/2002 10:14 AM 18.0 2060 7.9 9.5 2901/15/2003 INA INA INA INA INA INA1/28/2003 10:30 AM INA INA INA INA INA3/25/2003 10:15 AM 17.4 2300 7.7 10.9 2.64/22/2003 10:45 AM 17.2 2660 7.6 11.7 13.95/27/2003 11:29 AM 17.4 2510 7.1 9.6 38.36/24/2003 9:34 AM 17.8 2280 7.4 10.3 35.57/29/2003 9:35 AM 18.8 2410 7.4 8.3 2.58/26/2003 11:01 AM 19.1 2550 7.5 9.7 0.79/23/2003 10:42 AM 19.4 2440 7.7 10.2 0.9
10/28/2003 12:27 PM 19.6 2250 7.9 11.2 5.711/18/2003 11:52 AM 19.4 2320 8.3 12.6 6.61/28/2004 INA INA INA INA INA INA
3
G1: 544SJC001 – New Jerusalem Tile Drain continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
2/24/2004 10:55 AM 15.6 2240 8.1 10.3 NA5/26/2004 10:55 AM INA INA INA INA INA6/23/2004 9:47 AM 18.2 2530 7.5 11.9 NA7/28/2004 10:27 AM 19.4 2190 7.4 11.0 NA8/25/2004 10:38 AM 19.2 2510 7.4 9.9 NA9/29/2004 10:43 AM 19.4 2240 7.3 11.2 NA
10/27/2004 10:43 AM INA INA INA INA INA11/22/2004 11:24 AM 11.0 2540 8.1 10.112/28/2004 10:10 AM INA INA INA INA INA1/26/2005 10:25 AM 17.5 2650 8.0 9.12/23/2005 9:53 AM 17.4 2620 7.8 10.13/29/2005 11:00 AM INA INA INA INA3/31/2005 12:49 PM 17.1 2550 7.5 10.64/26/2005 10:50 AM 17.2 2770 7.4 11.35/24/2005 10:05 AM 17.4 2550 7.2 9.26/28/2005 10:12 AM 17.9 2450 7.3 9.77/26/2005 10:08 AM 18.6 2320 7.3 9.38/23/2005 10:14 AM 19.1 2340 7.2 9.19/27/2005 10:59 AM 19.1 2290 7.4 14.6
G1: 544SJC001 – New Jerusalem Tile Drain continued…
2 6Median 3 2.0 1986 6QuaQuaNOT
NA =INA =DRY
rtile 1 3 0.5 548 4rtile 3 3 2.7 2420 15E: For values reported as < (less than), half the detection limit was used. For values reported as > (greater than), 2420 was used Data not applicable Site was inaccessible
= Site had no flow
G1: 544SJC001 – New Jerusalem Tile Drain continued…
10/23/2001 53 <2 <0.1 <1 4.1 0.1 0.111/27/2001 NA NA NA NA 6.6 <0.1 <0.112/26/2001 NA NA <0.05 NA 2.4 <0.1 0.31/29/2002 NA 2.8 <0.05 <0.03 5.6 0.1 0.12/26/2002 NA NA 0.1 <0.03 2.9 0.2 0.23/26/2002 NA 1 0.1 0.1 3.5 0.3 0.74/23/2002 NA NA NA NA 4.7 <0.1 <0.15/28/2002 NA NA NA 0.1 5.1 0.1 0.16/18/2002 NA 0.8 NA NA 4.2 0.4 0.68/27/2002 NA 1.1 0.1 0.1 NA <0.1 <0.19/24/2002 NA NA <0.05 0.1 4.1 0.1 0.2
10/29/2002 NA 0.8 <0.05 <0.03 1.8 0.1 0.211/19/2002 NA 4.5 <0.05 <0.03 1.8 0.3 0.312/17/2002 NA 1.3 0.1 <0.03 1.9 0.3 0.3
G1: 544SJC001 – New Jerusalem Tile Drain continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5 Day (mg/L)
BOD 10 Day (mg/L)
Count 10 NA 19 NA 19 21 24 23 23Min 49 NA 0.8 NA 0.03 0.02 1.8 0.1 0.1Max 77 NA 4.5 NA 0.1 0.5 19 0.4 0.7Mean 59 NA 1.3 NA 0.1 0.3 4.7 0.1 0.2Geo Mean 59 NA 1.1 NA 0.1 0.1 4.1 0.1 0.1Median 58 NA 1.0 NA 0.1 0.5 4.2 0.1 0.1Quartile 1 53 NA 1.0 NA 0.04 0.1 3.8 0.1 0.1Quartile 3 61 NA 1.0 NA 0.1 0.5 4.8 0.2 0.3NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
8
G1: 544SJC001 – New Jerusalem Tile Drain continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
15
G2: 544SJC505 – Tom Paine Slough at Paradise Road Station Code:544SJC505
Location: Latitude 37.77417, Longitude -121.38222
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 10:40 AM 14.3 2920 7.811/28/2000 12:15 PM 10.0 2100 7.212/27/2000 10:15 AM 7.2 2980 8.11/23/2001 10:10 AM 9.0 2920 6.92/20/2001 10:29 AM 11.5 2200 7.63/27/2001 10:27 AM 16.9 2580 7.44/24/2001 11:30 AM 21.7 955 7.25/29/2001 12:20 PM 21.9 812 7.56/26/2001 10:57 AM 21.9 1010 7.5 4.27/24/2001 9:32 AM 23.4 1090 7.4 3.48/28/2001 10:38 AM 24.4 1060 7.7 6.89/25/2001 11:21 AM 21.0 1150 7.8 10.9
10/23/2001 10:48 AM 17.2 1590 7.6 8.911/27/2001 9:59 AM 10.3 2780 7.5 6.412/26/2001 10:50 AM 10.6 2860 7.3 NA1/29/2002 9:29 AM 7.8 3040 7.9 10.32/26/2002 10:11 AM 15.0 3110 8.0 13.63/26/2002 10:46 AM 15.6 1260 7.3 5.44/23/2002 10:42 AM 18.8 1030 7.5 5.45/28/2002 10:42 AM 20.9 845 7.8 8.36/18/2002 10:50 AM 21.6 1070 7.6 5.57/31/2002 INA INA INA INA INA INA8/27/2002 11:00 AM 22.4 1240 NA NA9/24/2002 11:16 AM 23.9 1210 7.5 4.8
10/15/2002 10:05 AM 18.0 1460 7.7 10.6 16.910/29/2002 10:37 AM 15.4 2220 7.4 10.4 13.411/19/2002 9:33 AM 12.8 2700 7.5 7.212/17/2002 9:50 AM 11.1 1240 7.8 9.5 52.71/15/2003 9:18 AM 13.0 1610 7.5 7.0 17.11/28/2003 10:05 AM 13.3 2570 8.0 14.3 38.13/25/2003 8:53 AM 15.9 1660 7.6 8.3 15.14/22/2003 10:14 AM 15.6 1110 8.0 8.6 13.25/27/2003 9:54 AM 20.5 1090 7.2 5.5 15.26/24/2003 10:56 AM 19.9 1240 7.7 8.1 3.97/29/2003 9:09 AM 25.7 918 7.3 2.2 4.08/26/2003 10:42 AM 25.5 1120 7.5 5.4 12.49/23/2003 10:17 AM 22.6 1430 7.1 4.3 10.5
10/28/2003 10:18 AM 17.6 1530 7.2 6.1 8.711/18/2003 9:45 AM 13.5 2660 7.4 8.0 551/28/2004 9:45 AM INA INA INA INA INA2/24/2004 10:16 AM 13.0 2820 7.5 5.6 110
16
G2: 544SJC505 – Tom Paine Slough at Paradise Road continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
3/24/2004 9:07 AM 16.2 3060 7.4 3.6 5.94/28/2004 9:04 AM 21.7 1030 7.1 10.5 48.55/26/2004 10:30 AM INA INA INA INA INA6/23/2004 9:06 AM 21.2 1190 7.0 3.5 NA7/28/2004 9:58 AM INA INA INA INA INA8/25/2004 9:19 AM 22.0 1120 6.9 2.7 NA9/29/2004 10:03 AM 19.7 1500 7.3 5.8 NA
10/27/2004 10:05 AM 14.7 2220 7.3 4.711/22/2004 10:47 AM 10.9 2990 7.4 9.612/28/2004 9:42 AM 8.4 2890 7.2 8.31/26/2005 9:54 AM 10.1 3180 7.6 6.82/23/2005 9:25 AM 14.9 2900 8.2 16.23/29/2005 10:36 AM 15.5 2950 7.9 13.94/26/2005 10:20 AM 16.8 762 7.4 7.95/24/2005 9:42 AM 20.9 767 7.7 9.26/28/2005 9:38 AM 19.1 784 7.1 6.57/26/2005 9:39 AM 25.2 894 7.4 5.08/23/2005 9:45 AM 23.5 781 7.5 7.69/27/2005 10:25 AM 19.3 1030 7.8 14.3
G2: 544SJC505 – Tom Paine Slough at Paradise Road continued…
ian 27 4.9 2420 47rtile 1 23 4.2 2420 29rtile 3 30 6.2 2420 104E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
G2: 544SJC505 – Tom Paine Slough at Paradise Road continued…
10/23/2001 <2 <2 0.2 <1 7.911/27/2001 NA NA NA 0.1 11 4.4 6.912/26/2001 NA NA 0.2 NA 4.0 3.1 7.21/29/2002 NA 1.1 0.1 0.1 14 5.1 8.02/26/2002 NA NA 0.3 <0.03 7.3 8.6 16.03/26/2002 NA 0.9 0.2 0.1 4.3 2.5 4.24/23/2002 NA NA NA NA 6.3 3.2 4.95/28/2002 NA NA NA 0.2 4.0 1.6 2.56/18/2002 NA 0.6 NA 0.3 6.7 1.3 2.28/27/2002 NA 0.6 0.2 0.2 NA 0.8 1.59/24/2002 NA NA 0.2 0.2 5.8 1.8 3.9
10/29/2002 NA 1.3 0.2 <0.03 4.5 8.6 13.611/19/2002 NA 1.4 0.2 0.1 4.4 4.7 8.212/17/2002 NA 1.5 0.2 0.1 2.0 2.4 4.81/28/2003 NA 1.3 0.2 <0.03 3.2 6.7 12.4
20
G2: 544SJC505 – Tom Paine Slough at Paradise Road continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 12 NA 20 NA 22 24 25 23 23Min 1 NA 0.6 NA 0.1 0.02 2.0 0.8 1.5Max 8.0 NA 2.1 NA 0.4 0.5 14 8.6 16.0Mean 3.8 NA 1.1 NA 0.2 0.3 6.6 4.5 7.7Geo Mean 2.8 NA 1.1 NA 0.2 0.2 6.1 3.7 6.4Median 3.4 NA 1.0 NA 0.2 0.3 6.7 4.4 7.2Quartile 1 1.0 NA 1.0 NA 0.2 0.1 4.5 2.5 4.5Quartile 3 5.7 NA 1.3 NA 0.3 0.5 7.8 6.7 11.8NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
21
G2: 544SJC505 – Tom Paine Slough at Paradise Road continued…
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
G2: 544SJC505 – Tom Paine Slough at Paradise Road continued…
Date Result Control Result Control
Result (million/m
l)
Control (million/m
l) MDD(%)1/28/2003 95 100 90 100 1.7* 3.10 NA
Count 1 1 1 1 1 1 N/A
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to untimely shipping of fish by fish supplier.
28
G3: 544SJC506 – Old River at Tracy Blvd Station Code:544SJC506
Location: Latitude 37.80472, Longitude -121.44944
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
10/24/2000 11:00 AM 15.8 984 8.211/28/2000 12:40 PM 10.0 802 8.212/27/2000 10:40 AM 8.4 824 6.91/23/2001 10:30 AM 9.3 949 7.72/20/2001 10:49 AM 11.6 718 8.23/27/2001 10:47 AM 18.6 1190 8.04/24/2001 12:15 PM 20.1 498 6.55/29/2001 11:50 AM 22.2 768 7.56/26/2001 11:30 AM 23.0 941 7.6 5.27/24/2001 9:50 AM 23.9 816 7.7 6.78/28/2001 11:10 AM 25.4 875 8.0 8.59/25/2001 10:58 AM 22.6 754 7.8 9.4
10/23/2001 10:22 AM 18.1 852 7.8 8.111/27/2001 10:23 AM 11.8 808 7.3 8.512/26/2001 11:10 AM 10.3 1200 8.0 NA1/29/2002 9:47 AM 8.4 1140 8.0 11.32/26/2002 9:22 AM 14.8 1070 7.8 10.03/26/2002 11:02 AM 15.6 1040 7.8 10.84/23/2002 11:20 AM 19.0 1080 7.9 7.65/28/2002 9:45 AM 20.5 617 8.1 12.06/18/2002 10:26 AM 23.1 827 7.6 5.37/31/2002 10:29 AM 24.4 889 8.3 6.3 55.98/27/2002 10:35 AM 23.8 932 NA NA9/24/2002 10:55 AM 23.9 899 7.5 3.3
10/15/2002 9:45 AM 19.2 1070 8.0 8.9 22.010/29/2002 11:02 AM 16.3 693 7.9 7.2 24.711/19/2002 9:51 AM 13.1 883 7.7 7.712/17/2002 9:29 AM 11.4 952 7.8 9.3 37.21/15/2003 9:36 AM 12.6 1110 7.7 8.9 26.61/28/2003 9:54 AM 13.0 1140 7.6 10.1 33.33/25/2003 9:30 AM 16.0 1230 7.8 12.6 30.24/22/2003 9:06 AM 14.9 793 7.7 9.9 33.95/27/2003 10:14 AM 22.3 617 8.5 10.9 32.06/24/2003 10:22 AM 21.0 694 8.1 9.3 50.97/29/2003 8:00 AM 26.6 727 7.7 6.6 42.88/26/2003 9:57 AM 26.3 771 8.0 5.7 46.59/23/2003 9:55 AM 23.4 785 7.9 9.0 26.8
10/28/2003 10:38 AM 18.9 572 7.8 8.3 20.611/18/2003 10:05 AM 15.6 864 7.8 8.8 19.31/28/2004 9:28 AM 10.1 1090 7.7 14.4 53.0
29
G3: 544SJC506 – Old River at Tracy Blvd continued…
Date TimeTemp (ºC)
Field SC (umhos) pH
Dissolved Oxygen (mg/L)
Turbidity (ntu)
2/24/2004 10:00 AM 13.2 837 7.6 8.7 41.73/24/2004 8:47 AM 16.9 769 8.0 10.2 32.14/28/2004 8:44 AM 20.8 773 7.5 11.0 32.45/26/2004 10:05 AM 19.7 767 8.2 11.4 30.76/23/2004 8:46 AM 21.2 745 7.7 7.2 NA7/28/2004 9:40 AM 25.8 833 8.1 7.3 NA8/25/2004 9:37 AM 23.0 830 7.6 6.2 NA9/29/2004 9:40 AM 20.4 943 7.4 8.3 NA
10/27/2004 9:38 AM 15.4 979 7.5 7.611/22/2004 10:29 AM 11.6 1140 7.6 9.412/28/2004 9:25 AM 8.9 1020 7.6 12.61/26/2005 9:37 AM 9.7 776 7.6 9.12/23/2005 9:07 AM 13.5 650 7.5 8.23/29/2005 10:19 AM 13.9 324 7.4 9.24/26/2005 10:03 AM 15.2 438 7.4 10.65/24/2005 9:21 AM 17.6 150 7.5 8.86/28/2005 9:21 AM 19.6 449 7.1 8.37/26/2005 9:23 AM 25.4 465 7.4 7.28/23/2005 9:24 AM 23.3 628 7.4 6.89/27/2005 10:04 AM 20.1 570 7.5 10.6
G3: 544SJC506 – Old River at Tracy Blvd continued…
5Max 44 17 2420 345Mean 28 5.0 NA NAGeo Mean 26 4.3 2169 74Median 25 4.1 2420 61Quartile 1 21 3.3 2420 50Quartile 3 35 5.7 2420 104NOTE: For values reported as < (less than), half the detection limit wa
For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
NA =INA =DRY
G3: 544SJC506 – Old River at Tracy Blvd continued…
DateNitrate (mg/L)
Nitrate-N (mg/L)
TKN (mg/L)
Ammonia-N (mg/L)
Phosphorus (mg/L)
Ortho-phosphate-
P (mg/L)
Potassium (mg/L)
BOD 5-Day (mg/L)
BOD 10-Day (mg/L)
Count 12 NA 20 NA 22 24 25 24 24Min 4.8 NA 0.6 NA 0.2 0.1 3.0 1.2 2.5Max 10.0 NA 2.1 NA 0.7 0.5 8.1 6.1 10.4Mean 7.6 NA 1.1 NA 0.3 0.3 5.3 3.0 5.1Geo Mean 7.4 NA 1.1 NA 0.2 0.3 5.1 2.6 4.6Median 7.9 NA 1.0 NA 0.2 0.2 5.3 2.6 4.2Quartile 1 6.8 NA 1.0 NA 0.2 0.2 4.4 1.9 3.3Quartile 3 8.4 NA 1.1 NA 0.3 0.5 5.9 3.7 6.4NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
33
G3: 544SJC506 – Old River at Tracy Blvd continued…
110 14 2420 1203n 43 7.2 NA NA Mean 35 6.1 2420 1122ian 34 6.0 2420 1125rtile 1 25 4.3 2420 1085rtile 3 49 9.7 2420 1164E: For values reported as < (less than), half the detection limit was used For values reported as > (greater than), 2420 was used
Data not applicable Site was inaccessible
= Site had no flow
NOT
NA =INA =DRY
G4: 544SJC509 – Mt House Creek @ Mt. House Parkway continued…
10/29/2002 NA 0.6 0.1 <0.03 3.9 1.3 2.012/17/2002 NA 3.4 0.3 0.3 13 7.0 13.2
Count 10 NA 13 NA 13 14 15 12 12Min 1.0 NA 0.6 NA 0.1 0.02 3.9 1.2 2.0Max 7.6 NA 3.4 NA 0.4 0.5 22 8.0 15.3Mean 4.5 NA 1.5 NA 0.2 0.4 11 3.3 6.2Geo Mean 3.9 NA 1.3 NA 0.2 0.3 9.4 2.6 5.0Median 5.1 NA 1.0 NA 0.2 0.5 7.4 2.3 4.2Quartile 1 3.1 NA 1.0 NA 0.2 0.2 6.0 1.6 3.4Quartile 3 5.5 NA 2.1 NA 0.3 0.5 19 3.9 7.9NOTE: For values reported as < (less than), half the detection limit was used.
NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
43
G4: 544SJC509 – Mt House Creek @ Mt. House Parkway continued…
* Significantly reduced from the lab control.** Significantly greater than the lab control.^ Fish were from a "forced hatch," duplicate failed QA.
1 Duplicate sample for the set was low - 77% recovery.
3 Samples qualified, but duplicate sample recovery for the set was high - 126% (53.8%/42.5%)NA = Data not applicableINA = Site was inaccessibleDRY = Site had no flow
2 Testing for the Fathead minnow was initiated when samples were approx. 48h old due to
96h Acute Fathead Minnow
(% Survival)
48h Acute Ceriodaphnia Dubia
(% Survival) Algae Cell Growth
47
APPENDIX H
PARAMETERS, DETECTION LEVELS, HOLDING TIMES AND ANALYTICAL RECOVERIES
Appendix H. Parameters, Detection Levels, Holding Times and Acceptable Analytical Recoveries (Revised Aug 2007)
Total Coliform CVRWQCB 100 mL MPN Colilert® 18 by Idexx 95% CI 6 Hr - Cool, 4 °C in the dark 100 mL
Polyethylene 95%
E. Coli CVRWQCB 100 mL MPN Colilert® 18 by Idexx 95% CI 6 Hr - Cool, 4 °C in the dark 100 mL
Polyethylene 95%
Organics in Water
Total Organic Carbon SFL 100 mL / 125
mL mg/L, % SM5310C 0.20 RPD<20% 28 days - Cool, 4 °C in the dark, H2SO4 to pH <2
250 mL Glass-Amber 95%
Biological Oxygen Demand
BOD 5-Day SFL 2000 ml mg/L SM 5210 B 1.0 RPD<20% 48 Hr - Cool, 4 °C in the dark Polyethylene 95%
BOD 10-Day SFL 2000 ml mg/L SM 5210 B 1.0 RPD<20% 48 Hr - Cool, 4 °C in the dark Polyethylene 95%
a. A YSI 6600 and a 600XLM Instrument is used to determine field SC, pH, Temp, DO, Turb.
b. A YSI 3200 Bench Top conductivity meter is used to determine lab SC.
c. Laboratory is determined through SWAMP - SJSU Master Contract
d. Samples analyzed as part of the Grassland Bypass Program and are set based on those Waste Discharge Requirements.
e. low range2-2400; mid range 20-2400; high range 200-240000; very high range 2000-2400000 *Carlson, R.M. 1978. Automated separation and conductimetric determination of ammonia and dissolved carbon dioxide.
Analytical Chemistry 50:1528-1531. *Carlson, R.M. 1986. Continuous flow reduction of nitrate to ammonia with granular zinc. Analytical Chemistry 58:1590-1591. **Yu, Z., Northup, R.R. and Dahlgren, R.A. 1994. Determination of dissolved organic nitrogen using persulfate oxidation and conductimetric
quantification of nitrate-nitrogen. Commun. Soil Sci. Plant Anal. 25:3161-3169. *** low range 2-2400; mid range 20-24000; high range 200-240000; very high range 2000-2,400,000
SFL = Sierra Foothill Laboratory Basic = Basic Laboratory CVRWQCB = in house processing in the Central Valley Regional Water Quality Control Board laboratory Eaton, A. D. ed., Clesceri, L. S. ed., Greenberg, A. E. ed. 1995. Standard Methods for the Examination of Water and Wastewater. 19th edition. American Public Health Association, American Water Works Association, Water Environment Federation.
APPENDIX I:
SJR Main Stem Site Information and Photographic Documentation
APPENDIX I: SJR Main Stem Site Information and Photographic Documentation I1: 541MAD007 – SJR at Sack Dam…………………………………………………03-04 I2: 541MER522 – SJR at Lander Avenue……………………………………....……05-06 I3: 541MER538 – SJR at Fremont Ford………………………………………….......07-08 I4: 541STC512 – SJR at Hills Ferry………………………………………………….09-10 I5: 535STC504 – SJR at Crows Landing…………………………………………….11-12 I6: 541STC507 – SJR at Patterson…………………………………………………...13-14 I7: 541STC510 – SJR at Maze……………………………………………………….15-16 I8: 541SJC501 – SJR at Airport Way………………………………………………...17-18
2
I1: 541MAD007 – SJR at Sack Dam
MONITORING SITE INFORMATION Site Description, Location and Access: Exit East onto Highway 152 off of Interstate 5. Exit South onto Highway 33 to Dos Palos. Go East onto Valeria Avenue until it dead-ends. Access is via a dirt road at the end of Valeria Avenue. Latitude/Longitude: Lat. N 36° 59’ 01.2” Long. W 120° 30’ 01.0” County: Madera WATER SOURCE The source of water is primarily from the Mendota Pool. Mendota Pool is supplied with Delta water pumped via the Delta Mendota Canal. During the wet season or during periods of planned releases, high quality San Joaquin River water from Friant Dam also flows to Mendota Pool.
3
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 01/27/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/29/05
4
I2: 541MER522 – SJR at Lander Avenue
MONITORING SITE INFORMATION Site Description, Location and Access: The site is located approximately 16.5 miles north of Los Banos on Lander Avenue (Highway 165). The site is 1.2 miles south of the Highway 140 –Lander Avenue intersection. The sample is taken at the northwest corner of the Lander Avenue Bridge over the San Joaquin River. Township/Range/Section: NE ¼, NE ¼, SE ¼, Section 27, T7S, R10E (DWR#7S/10E-27J) Latitude/Longitude: Lat. N 37o 17’ 43” Long. W 120o 51’ 01” County: Merced USGS Quad map: Stevenson, CA WATER SOURCE Surface water in the San Joaquin River. In low flow periods, a significant portion of the river flow will consist of surface runoff from irrigated areas. Water quality at this site is expected to show natural background levels or good quality surface runoff from irrigated agriculture. No tile drainage water enters the river upstream of this site.
5
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
6
I3: 541MER538 – SJR at Fremont Ford
MONITORING SITE INFORMATION Site Description, Location and Access: The monitoring site is located at Fremont Ford on the west bank of the San Joaquin River at Highway 140. The Sample is taken on the southwest side of the bridge. Fremont Ford is located approximately 5.4 miles northeast of Gustine on Highway 140. Township/Range/Section: NW ¼, NW ¼, SE ¼, Section 24, T7S, R9E (DWR#7S/9E-24K) Latitude/Longitude: Lat. N 37° 18’ 34” Long. W 120° 55’ 45” County: Merced USGS Quad Map: Gustine WATER SOURCE This site represents the San Joaquin River downstream of the confluence with Salt Slough. Water quality at this site is usually elevated with respect to salinity.
7
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
8
I4: 541STC512 – SJR at Hills Ferry
MONITORING SITE INFORMATION Site Description, Location and Access: The site is located on the west band of the San Joaquin River approximately 30 yards south of the Merced River confluence. Access to the site is via Hills Ferry Road west of Newman. Hills Ferry Road crosses the San Joaquin River just north (downstream) of the Merced River confluence. To get to the sample point, park vehicle on northwest side of bridge, on shoulder of road and hike down the Merced River confluence to take sample. Township/Range/Section: SE ¼, SW ¼, SW 1/4, Section 3, T7S, R9E (DWR#7S/9E-3N) Latitude/Longitude: Lat. N 37º 20’ 33” Long. W 120º 58’ 38” County: Stanislaus USGS Quad Map: Gustine WATER SOURCE Flows at this site are composed of subsurface agricultural drainage, wetland drainage, and some surface runoff from the Grassland Area, as well as wet season inflows from Merced River flood channels. The quality of these flows will greatly influence quality in the river. Water at this site will likely be elevated with respect to salt, selenium, and boron.
9
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
03/25/04 02/17/05
Spring Runoff
04/29/04 05/19/05
Irrigation Season
07/29/04 08/18/05
Dry Season
09/30/04 09/29/05
10
I5: 535STC504 – SJR at Crows Landing
MONITORING SITE INFORMATION Site Description, Location and Access: The sampling site is located on the fishing dock on the East bank at the Turlock Sports Club off of Carpenter road. The entrance to the sports club is 100 ft north of Crows Landing road. Upon entering, drive north on dirt road and take first left to fishing dock. Sample off of the west side of the dock. Township/Range/Section: NW ¼, SE ¼, NE ¼, Section 7, T6S, R9E (DWR#6S/9E-7H) Latitude/Longitude: Lat. N 37° 25’ 55” Long. W 121° 00’ 42” County: Stanislaus USGS Quad Map: Crows Landing, CA WATER SOURCE Water quality at this site will be better than that at upstream stations as the Merced River and Orestimba Creek drain to the San Joaquin River upstream of this station. This station will represent the San Joaquin River as influenced by the Grassland discharges and diluted by the Merced River flow.
11
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
01/29/04 01/20/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
06/24/04 06/09/05
Dry Season
09/30/04 09/22/05
12
I6: 541STC507 – SJR at Patterson
MONITORING SITE INFORMATION Site Description, Location and Access: The monitoring site is located north of the Patterson Bridge at the fishing access off of Poplar Avenue. Access to the site is via Las Palmas Avenue (West Main St.) east from Patterson to Poplar Avenue located on the north side of the road approximately 0.5 miles west of the bridge. Go north on Poplar Avenue and make an immediate right on the road to Las Palmas Fishing Access. The sample is taken at the launch ramp on the southeast corner parking lot. Township/Range/Section: SW ¼, NW ¼, SW ¼, Section 15, T5S, R8E (DWR#5S/8E-15M) Latitude/Longitude: Lat. N 37° 29’ 52” Long. W 121° 04’ 54” County: Stanislaus USGS Quad Map: Crows Landing, CA WATER SOURCE Water quality at this site will be similar to that at Crows Landing Bridge (Site STC 504) with the additional influence of a few agricultural discharges to the river.
13
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
14
I7: 541STC510 – SJR at Maze
MONITORING SITE INFORMATION Site Description, Location and Access: The monitoring site is located on the southwest side of the Highway 132 Bridge approximately 100 yards south of the Bridge. Access to the site is via River road, then turn down the alfalfa farmers’ driveway towards the pump house on the river. Parking is on a gravel turnabout at the pump house, then hike down to the river bank for sampling. Township/Range/Section: SW ¼, NW ¼, SW ¼, Section 29, T3S, R7E (DWR#3S/7E-29M) Latitude/Longitude: Lat. N 37° 38’ 31” Long. W 121° 13’ 40” County: Stanislaus USGS Quad Map: Ripon, CA WATER SOURCE Water quality and water quantity at this site is poor and lower, respectively than that found immediately downstream at Vernalis (site SJC 501). This station is immediately upstream of the inflow of the Stanislaus River and downstream of the inflow of the Tuolumne River.
15
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 01/27/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
16
I8: 541SJC501 – SJR at Airport Way
MONITORING SITE INFORMATION Site Description, Location and Access: The site is located on the west bank of the San Joaquin River on the south side of the Airport Way Bridge. Access to the site is via Kasson Road to Airport Way. Airport Way is located just south of San Joaquin River Club. Township/Range/Section: SE ¼, SW ¼, NW ¼, Section 13, T3S, R6E (DWR#3S/6E-13E) Latitude/Longitude: Lat. N 37° 40’ 32” Long. W 121° 15’ 51” County: San Joaquin USGS Quad Map: Vernalis, CA WATER SOURCE Water at this site is natural surface flow in the San Joaquin River. Water quality at this site is good and shows typical surface flow quality. This site is just downstream of the inflow from the Stanislaus River. Quality is likely to be the best of any of the river sites.
17
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
18
Dry Season
09/30/04 09/22/05
APPENDIX J:
Northeast Basin Site Information and Photographic Documentation
APPENDIX J: Northeast Basin Site Information and Photographic Documentation J1: 531SAC001 – Cosumnes River at Twin Cities Road.……………………………03-04 J2: 544SAC002 – Mokelumne River at New Hope Road……………………....……05-06 J3: 531SJC507 – Pixley Slough at Davis Road.………………………………….......07-08 J4: 544SJC508 – Bear Creek at Thornton Road (J8)...……………………………….09-10 J5: 531SJC515 – Bear Creek at Lower Sacramento Road..………………………….11-12
2
J1: 531SAC001 – Cosumnes River at Twin Cities Road
MONITORING SITE INFORMATION Site Description, Location and Access: Exiting West onto Twin Cities Road (E13) from Highway 99, the site location is at the Eastern most crossing of the River. Access is via the Northeastern side of the first bridge. Latitude/Longitude: Lat. N 38° 17’ 27.1” Long. W 121° 22’ 33.2” County: Sacramento WATER SOURCE The Cosumnes River is a natural stream, which ceases to flow during summer months from July until the first major storm in the fall unless water is diverted to it. Water is diverted, when available, from the Folsom-South Canal by Omochumne-Hartnell Water District. The channel, for about 10.5 miles, is dominated by agricultural supply water when water is diverted from the Folsom-South Canal from April through September.
3
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
06/23/04 06/28/05
Dry Season
08/25/04 08/23/05
J2: 544SAC002 – Mokelumne River at New Hope Road
MONITORING SITE INFORMATION Site Description, Location and Access: Exiting East off of Interstate 5 onto Thornton Road (J8), take Thornton Road North. Make a left hand turn onto New Hope Road. Access is via the Southeast corner where New Hope Road crosses the river. Latitude/Longitude: Lat. N 38° 14’ 10” Long. W 121° 25’ 08” County: Sacramento WATER SOURCE This site is a culmination of the entire watershed and serves as an integrator for the lower watershed. The river is wide and deep and has been channeled between levees, which in turn have been reinforced with concrete riprap in several locations.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
J3: 531SJC507 – Pixley Slough at Davis Road
MONITORING SITE INFORMATION Site Description, Location and Access: Exit East onto Eight Mile Road off of Interstate 5. Make a right hand turn onto Davis Road. Access is via the northwest side of the bridge at Davis Road and Pixley Slough. Latitude/Longitude: Lat. N 38° 03’ 22.3” Long. W 121° 19’ 59.5” County: San Joaquin WATER SOURCE This slough originates at Bear Creek and carries supply water from Bear Creek to agricultural land in the North San Joaquin W.C.D. It carries agricultural supply water until it is diverted back into Bear Creek, north of Stockton. The total length of the slough is about 9.7 miles. The period that agricultural supply water dominates the flow in Pixley Slough is during the growing season from April through October.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
J4: 544SJC508 – Bear Creek at Thornton Road (J8)
MONITORING SITE INFORMATION Site Description, Location and Access: Exit East onto Eight Mile Road from Interstate 5. Make a right hand turn onto Thornton Road (J8). Access to the Creek is via the Northwest corner of the bridge. Latitude/Longitude: Lat. N 38° 02’ 35.3” Long. W 121° 20’ 54.8” County: San Joaquin WATER SOURCE The headwater of Bear Creek extends to the foothills. Under natural conditions, it would flow only part of the year. Supply waters which are released form upstream reservoirs are diverted form the Mokelumne River in the North San Joaquin W.C.D. This water supplies agriculture in the district. Operational spill water contributes its flow until it reaches the Delta tidal influence at Interstate 5. The total distance is about 13.6 miles. It has been channeled in a number of locations.
Water Year 2001 Water Year 2002 Rainy Season
02/26/02
Spring Runoff
04/24/01 04/23/02
Irrigation Season
07/24/01
Dry Season
09/26/01
J5: 531SJC515 – Bear Creek at Lower Sacramento Road
MONITORING SITE INFORMATION Site Description, Location and Access: Exit East onto Eight Mile Road from Interstate 5. Make a right hand turn onto Lower Sacramento Road. Access to the Creek is via the Southwest corner of the bridge. Latitude/Longitude: Lat. N 38° 02’ 33.9” Long. W 121° 19’ 16.9” County: San Joaquin WATER SOURCE The headwater of Bear Creek extends to the foothills. Under natural conditions, it would flow only part of the year. Supply waters that are released from upstream reservoirs are diverted from the Mokelumne River in the North San Joaquin W.C.D. This water supplies agriculture in the district. Operational spill water contributes its flow until it reaches the Delta tidal influence at Interstate 5. The total distance is about 13.6 miles. It has been channeled in a number of locations. Note: This site was changed from the Thornton Rd. site (May of 2002) due to the influx of tidal waters from the Delta. The new (Lower Sacramento Rd.) site is upstream of the tidal influence.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
06/23/04 06/28/05
Dry Season
08/25/04 08/23/05
APPENDIX K:
Eastside Basin Site Information and Photographic Documentation
APPENDIX K: Eastside Basin Site Information and Photographic Documentation K1: 531SJC503 – Lone Tree Creek at Austin Road.…………………………………03-04 K2: 531SJC504 – French Camp Slough at Airport Way..……………………....……05-06 K3: 535MER576 – Turner Slough at Fourth Avenue….…..……………………........07-08 K4: 535MER546 – Merced River at River Road……………………………………….09-10 K5: 535STC501 – TID 5 Harding Drain at Carpenter Road...……………………….11-12 K6: 535STC513 – Tuolumne River at Shiloh Fishing Access..……………………...13-14 K7: 535STC514 – Stanislaus River at Caswell Park...……………………………….15-16
2
K1: 531SJC503 – Lone Tree Creek at Austin Road
MONITORING SITE INFORMATION Site Description, Location and Access: Going East on Camp Road from Highway 99, turn left (north) onto Austin Rd. As the road curves to the right it will cross the Creek. Latitude/Longitude: Lat. N 37° 51’ 20” Long. W 121° 11’ 06” County: San Joaquin WATER SOURCE A 20 mile natural Channel originating south of Woodward Reservoir, this ephemeral stream carries natural runoff for four months of the year, in a westerly direction until its confluence with French Camp Slough and ultimate discharge into the San Joaquin River. Between March and November, flows in the creek are dominated by agricultural return flow beginning south of Woodward and continuing to French Camp Slough. Water is recaptured from irrigation as it moves downstream.
3
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
K2: 531SJC504 – French Camp Slough at Airport Way
MONITORING SITE INFORMATION Site Description, Location and Access: Exit West onto French Camp Road (J9) off of Highway 99 South of Stockton. Make a right hand turn onto Airport Way (J3). Access to this site is via the Northwest side of the Slough where it meets Airport Way, at the Gauging system. Latitude/Longitude: Lat. N 37° 52’ 54.2” Long. W 121° 14’ 57.6” County: San Joaquin WATER SOURCE French Camp Slough originates at the confluence of Lone Tree Creek and Littlejohns Creek. The Slough carries agricultural return flows from March to November and storm runoff the rest of the year (ISWP 1993). As a long term monitoring site, sampling was augmented as part of this project.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
03/24/04 03/29/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
K3: 535MER576 – Turner Slough at Fourth Avenue
MONITORING SITE INFORMATION Site Description, Location and Access: Going south on Highway 165, turn right (west) onto Fourth Avenue (south Stevenson). Access to the slough is on the south side of Fourth Avenue, 1/8 of a mile east of Edminster Rd. Samples are taken from the south side of the bridge. Latitude/Longitude: Lat. N 37° 19’ 14” Long. W 120° 53’ 21” County: Merced WATER SOURCE Turner Slough is a former flood channel that has no natural flow. The channel has been reconstructed and realigned now to serve as a main drain for areas in the Stevenson Water District. Flow in the reconstructed channel is totally agricultural drainage flows.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/24/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/29/05
K4: 535MER546 – Merced River at River Road
MONITORING SITE INFORMATION Site Description, Location and Access: The site is under the historic bridge on the north bank near the mouth of the Merced River. The site is accessed via the parking lot at the intersection of River Road and Kelly Roads. Township/Range/Section: NW ¼, SW ¼, SW ¼, Section 2, T7S, R9E (DWR#7S/9E-2N) Latitude/Longitude: Lat. N 37° 20’ 59” Long. W 120° 57’ 28” County: Merced USGS Quad Map: Gustine, CA WATER SOURCE Water quality at this site is likely to reflect the quality of the major eastside tributaries.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/28/05
Dry Season
09/30/04 09/27/05
K5: 535STC501 – TID 5 Harding Drain at Carpenter Road
MONITORING SITE INFORMATION Site Description, Location and Access: From interstate 5, take Fink Road east for approximately 3.6 miles. Continue northeast on Crows Landing Road for approximately 3.6 miles until Carpenter Road. Travel approximately 2.4 miles northwest until drain. Sample on west side. Township/Range/Section: SE ¼ Section 5, T5S, R9E Latitude/Longitude: Lat. N 37° 27’ 52” Long. W 120° 01’ 49” County: Stanislaus USGS Quad Map: Crows Landing, CA WATER SOURCE Agricultural return flows, sewage disposal, and industrial flows.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
11/20/03 11/23/04
Spring Runoff
04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/29/05
K6: 535STC513 – Tuolumne River at Shiloh Fishing Access
MONITORING SITE INFORMATION Site Description, Location and Access: The site is on the left bank of the Tuolumne River, under the Shiloh Road Bridge, approximately seven miles upstream of the confluence with the San Joaquin River. The site can be reached following the sign for Shiloh fishing access on the south side of the Shiloh Road Bridge. Sample from the sandy bar under the bridge. Latitude/Longitude: Lat. N 37° 36’ 11” Long. W 121° 07’ 54” County: Stanislaus WATER SOURCE Water quality at this site is representative of drainage from the entire watershed (1,540 square miles) and has an average annual unimpaired runoff of about 1.8 million-acre feet. The area is a daytime recreation area and is adjacent to a Recreational Vehicle park. As a long time monitoring site, sampling was augmented as part of this project.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/24/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/29/05
K7: 535STC514 – Stanislaus River at Caswell Park
MONITORING SITE INFORMATION Site Description, Location and Access: This site is on the right bank of the Stanislaus River approximately seven miles upstream of the confluence with the San Joaquin River. The site can be reached by entering Caswell Memorial State Park via Austin Road, then following signs to campsite number 17. Walk down bank and collect sample from riprap. Latitude/Longitude: Lat. N 37° 42’ 09” Long. W 121° 10’ 38” County: Stanislaus WATER SOURCE Water quality at this site is representative of drainage from the entire watershed (1,100 square miles). Caswell Park is a 258-acre park containing examples of riparian forest. The area is a daytime and overnight recreation area supporting activities such as swimming, fishing, camping, and hiking. There are urban influences from nearby communities such as Oakdale and Riverbank. Orchards, cropland, pastureland, and herbaceous rangeland are among the land uses in the Caswell park vicinity. Flow at this site is moderate and the channel is approximately 30 feet wide. As a long term monitoring site, sampling was augmented as part of this project.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
03/24/04 04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
APPENDIX L:
Southeast Basin Site Information and Photographic Documentation
APPENDIX L: Southeast Basin Site Information and Photographic Documentation L1: 545MAD006 – Lone Willow Slough at Road 9…………………….………………03-04 L2: 541MER015 – Santa Rita Slough at Highway 152…...……….….………....……05-06 L3: 535MER577 – Deep Slough at Green House Road………………………….......07-08 L4: 535MER007 – Bear Creek near Bert Crane Road…………….………………….09-10
2
L1: 545MAD006 – Lone Willow Slough at Road 9
MONITORING SITE INFORMATION Site Description, Location and Access: Exiting West from Highway 99 onto Avenue 7. Following Avenue 7 make a right hand turn onto Rd. 9. Access is via the east side of Rd. 9. Latitude/Longitude: Lat. N 36° 52’ 00.9” Long. W 120° 22’ 54.9” County: Madera WATER SOURCE Lone Willow Slough is an old flood channel of the San Joaquin River extending from near Mendota to the Fresno River. The slough was isolated off from the San Joaquin River with the construction of the Eastside Bypass. With the construction of Friant Dam, the Slough rarely conveys natural flood flows. There are discharges of tailwater into various reaches of the Slough, but these are not sufficient to sustain a continuous flow. The Slough is dominated by these flows as there is no other flow in the Slough. Some of these tailwater flows are diverted for agricultural use.
3
Water Year 2001 Water Year 2002 Rainy Season
12/28/00 01/31/02
Spring Runoff
04/26/01 04/24/02
Irrigation Season
07/25/01
Dry Season
09/27/01
L2: 541MER015 – Santa Rita Slough at Highway 152
MONITORING SITE INFORMATION Site Description, Location and Access: Going East on Highway 152 from Interstate 5. Access to the Slough is via Indiana Avenue on the south side of Highway 152 near the Cotton Gin. Latitude/Longitude: Lat. N 37° 02’ 51.1” Long. W 120° 35’ 36.9” County: Merced WATER SOURCE A former overflow channel of the San Joaquin River, Santa Rita Slough now only conveys flood flows and has been extensively modified to enhance its use as an agricultural supply and drainage channel. The seven-mile channel conveys supply and return flows from approximately the Merced-Fresno County line to its discharge into Salt Slough Ditch during the irrigation season (March to October).
Water Year 2001 Rainy Season
12/28/00
Spring Runoff
04/26/01
Irrigation Season
07/25/01
Dry Season
09/27/01
L3: 535MER577 – Deep Slough at Green House Road
MONITORING SITE INFORMATION Site Description, Location and Access: Exiting South onto Bert Crane Road from Highway 99 follow Bert Crane Road until it makes a left hand turn where it turns into Dan McNamara Road. Make a right hand turn (west) off of Dan McNamara onto Green House Road. Access to the sight is via Green House Road. Latitude/Longitude: Lat. N 37° 13’ 47.3” Long. W 120° 43’ 41.6” County: Merced WATER SOURCE Deep Slough is a small, reconstructed, former overflow channel of the San Joaquin River. The 1.35-mile slough receives agricultural drainage from 432 acres between February and October.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/24/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 06/30/05
Dry Season
08/26/04 08/25/05
L4: 535MER007 – Bear Creek near Bert Crane Road
MONITORING SITE INFORMATION Site Description, Location and Access: From Highway 99, head west on Highway 140 for approximately 7.3 miles to Bert Crane Road. Travel south on Bert Crane Road for Approximately 4.2 miles. Turn west on dirt road on south side of Bear Creek for approximately 300 feet to gauging station. Latitude/Longitude: Lat. N 37° 15’ 20” Long. W 120° 39’ 07” County: Merced WATER SOURCE Agricultural return flows, operational spill from Merced Irrigation District and storm flows.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/24/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 08/25/05
APPENDIX M:
Grasslands Basin Site Information and Photographic Documentation
APPENDIX M: Grasslands Basin Site Information and Photographic Documentation M1: 541MER531 – Salt Slough at Lander Avenue (Highway 165)…………………03-04 M2: 541MER536 – Mud Slough Upstream of SLD Terminus..…….….……....……05-06 M3: 541MER535 – San Luis Drain at Terminus………………………………….......07-08 M4: 541MER542 – Mud Slough (North) at SLD………..…………………………….09-10
2
M1: 541MER531 – Salt Slough at Lander Avenue (Highway 165)
MONITORING SITE INFORMATION Site Description, Location and Access: The site is located on Lander Avenue approximately 13.0 miles north of Los Banos and 5.0 miles south of Highway 140. The samples are taken at the northeast corner of bridge. Township/Range/Section: NW ¼, SE ¼, SE ¼, Section 10, T8S, R10E (DWR#8S/10E-10R) Latitude/Longitude: Lat. N 37o 14’ 55” Long. W 120o 51’ 04” County: Merced USGS Quad Map: San Luis Ranch, CA WATER SOURCE The water at this site is a blend of surface tail water, operational spills, and wetland drainage from the Salt Slough area. This site represents the drainage from the Grassland Watershed entering the San Joaquin River above Highway 140. The water quality and quantity at the site will vary, but the range of variation is dampened by the large amount of area, which drains into the San Joaquin River. Salinity is expected to be elevated.
3
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
M2: 541MER536 – Mud Slough Upstream of SLD Terminus
MONITORING SITE INFORMATION Site Description, Location and Access: Township/Range/Section: SE ¼, SE ¼, Section 6, T8S, R10E Latitude/Longitude: Lat. N 37° 15’ 15” Long. W 120° 54’ 25” County: Merced USGS Quad Map: Gustine, CA WATER SOURCE Mud Slough (north) at this site carries mainly wetland spills and drainage. The flow is highly variable throughout the year, ranging from high flow during the wet season and during periods of wetland releases to very low flow during the summer and early fall. The water is usually elevated with respect to salinity.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
M3: 541MER535 – San Luis Drain at Terminus
MONITORING SITE INFORMATION Site Description, Location and Access: Township/Range/Section: SE ¼, SE ¼, Section 6, T8S, R10E Latitude/Longitude: Lat. N 37° 14’ 26” Long. W 120° 52’ 55” County: Merced USGS Quad Map: Gustine, CA WATER SOURCE This water at this site consists of subsurface agricultural drainage from the Grassland Watershed. The water is elevated with respect to salinity, selenium, and boron. Flows at this site are highly managed and tend to have the highest concentrations of salt selenium and boron in during the pre-irrigation season, with concentrations decreasing throughout the year to a minimum during the non-irrigation season.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
01/29/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
M4: 541MER542 – Mud Slough (North) at SLD
MONITORING SITE INFORMATION Site Description, Location and Access: The monitoring site is located approximately 5.2 miles east of Gustine and 2 miles southeast of Highway 140. The site is located at the footbridge 400 ft northwest of the terminus of the San Luis Drain. The site is located in the Kesterson National Wildlife Refuge. The USGS gauge is at the site. The sample is taken at the bridge. Township/Range/Section: SE ¼, SE ¼, Section 6, T8S, R10E Latitude/Longitude: Lat. N 37ο 15’ 50” Long. W 120o 54’ 22” County: Merced USGS Quad Map: Gustine WATER SOURCE Mud Slough (North) at this site carries a blend of subsurface tile drainage water and discharges from surrounding duck clubs. The main flow in Mud Slough (North) is composed of subsurface agricultural drainage flows from the San Luis Drain and seasonal wetland releases. Water quality at this site is elevated with respect to salinity, selenium, and boron.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
01/29/04 02/17/05
Spring Runoff
04/29/04 04/28/05
Irrigation Season
07/29/04 07/28/05
Dry Season
09/30/04 09/22/05
APPENDIX N:
Westside Basin Site Information and Photographic Documentation
APPENDIX N: Westside Basin Site Information and Photographic Documentation N1: 541STC019 – Orestimba Creek at River Road……………..……………………03-04 N2: 541STC515 – Salado Creek at Highway 33……………..…..….….……....……05-06 N3: 541STC516 – Del Puerto Creek at Vineyard Avenue..……….…………….......07-08 N4: 541STC040 – Ingram Creek at River Road…………..………….……………….09-10 N5: 541STC042 – Hospital Creek at River Road………….…………..………….......11-12 N6: 541STC030 – Grayson Road Drain at Grayson……....………..…………….......13-14
2
N1: 541STC019 – Orestimba Creek at River Road
MONITORING SITE INFORMATION Site Description, Location and Access: Orestimba Creek at River Road gives good access to the creek and represents runoff water quality just prior to its entrance to the San Joaquin River at Mile 109.0. Township/Range/Section: SE ¼, SE ¼, NE ¼, Section 18, T6S, R9E (DWR#6S/9E-18H) Latitude/Longitude: Lat. N 37° 24’ 50” Long. W 121° 00’ 51” County: Stanislaus USGS Quad Map: Crows Landing WATER SOURCE The water in Orestimba Creek consists of both natural surface flow from Orestimba Creek, Crow Creek and runoff, tail water and operational spills from the tear depending upon the intensity of irrigation on the area. There are no known discharges of tile drainage water directly into the creek Orestimba Creek carries both natural runoff and agricultural return flows. It is also likely that the deep entrenchment of the creek in its lower reaches near the San Joaquin causes seepage of groundwater into the creek in several reaches.
3
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/16/05
Spring Runoff
04/29/04 04/20/05
Irrigation Season
07/29/04 07/20/05
Dry Season
09/02/04 09/21/05
N2: 541STC515 – Salado Creek at Highway 33
MONITORING SITE INFORMATION Site Description, Location and Access: Located just before the city of Patterson going South on Highway 33. Access to this Creek is via the east side of Highway 33 where it crosses the Creek. Bridge 38-20 Latitude/Longitude: Lat. N 37° 28’ 53.3” Long. W 121° 08’ 07.9” County: Stanislaus WATER SOURCE Salado Creek is an ephemeral stream originating in the Coast Range whose flows only reach the San Joaquin River during high flood periods. Natural runoff occurs for 2-3 months of the year upstream of power lines which transverse the creek approximately 1.5 miles upstream of Interstate 5. Downstream of the power line, the Creek channel is dominated by agricultural return flows from March to November. Downstream of the Delta Mendota Canal, the flood channel has been extensively reworked; now it can be considered a constructed channel carrying only agricultural return flows that is then piped underground from Highway 33 until it discharges into the San Joaquin River along Olive Avenue.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/16/05
Spring Runoff
04/29/04 04/20/05
Irrigation Season
08/26/04 07/20/05
Dry Season
09/02/04 09/21/05
N3: 541STC516 – Del Puerto Creek at Vineyard Avenue
MONITORING SITE INFORMATION Site Description, Location and Access: Del Puerto Creek at the intersection of Vineyard Road and Loquat. The creek is sampled at the bridge. Latitude/Longitude: Lat. N 37° 31’ 17.3” Long. W 121° 08’ 55.3” County: Stanislaus WATER SOURCE Type and source of water being monitored (description): The majority of the water in Del Puerto Creek is tail water from irrigated fields in the adjacent areas. Also in the creek is operational spill water from both West Stanislaus Irrigation District and Patterson Water District. Little if any tile drainage enters the creek. It would be expected that seepage into the creek from high groundwater would also be present but little is found. Comments on factors affecting water quality and quantity at the site: The quality of the creek will be related to the operational spill water quality and the quality of the tail water leaving individual fields.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/15/05
Spring Runoff
04/29/04 04/19/05
Irrigation Season
07/29/04 07/19/05
Dry Season
09/30/04 09/20/05
N4: 541STC040 – Ingram Creek at River Road
MONITORING SITE INFORMATION Site Description, Location and Access: Ingram Creek as it passes under River Road. Sample site is on the east side of the road 200 feet downstream of the last pope input to the drain at River Road. Township/Range/Section: SE ¼, NE ¼, SW ¼, Section 8, T4S, R7E (DWR#4S/7E-8L) Latitude/Longitude: Lat. N 37° 36’ 01” Long. W 121° 13’ 27” County: Stanislaus USGS Quad Map: Westley, CA WATER SOURCE The water in Ingram Creek at this site is a combination of tail water and subsurface tile drainage water. The majority of the flow will be tail water. The quality of the flow will be determined by the amount of tail water in the creek. The site is very near the Ingram Creek Drain (site STC041), which enters on the east side of River Road just downstream of the bridge from the south bank.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/15/05
Spring Runoff
04/28/04 04/19/05
Irrigation Season
07/28/04 07/19/05
Dry Season
09/29/04 09/20/05
N5: 541STC042 – Hospital Creek at River Road
MONITORING SITE INFORMATION Site Description, Location and Access: Hospital Creek just downstream of its crossing of River Road. Township/Range/Section: SW ¼, SW ¼, SW ¼, Section 5, T4S, R7E (DWR#4S/7E-5N) Latitude/Longitude: Lat. N 37° 36’ 38” Long. W 121° 13’ 43” County: Stanislaus USGS Quad Map: Westley, CA WATER SOURCE Hospital Creek carries storm runoff and tail water from irrigated land upslope. No known tile drainage enters the creek upstream of River Road.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/15/05
Spring Runoff
04/28/04 04/19/05
Irrigation Season
06/23/04 06/21/05
Dry Season
09/29/04 09/20/05
N6: 541STC030 – Grayson Road Drain at Grayson
MONITORING SITE INFORMATION Site Description, Location and Access: Sampling point is at the Grayson Road Bridge as it crosses the old river channel (0.15 miles west of the intersection of Grayson Road and Cox Road). Discharged is from a black pipe in the west bank of the old channel under the bridge. This closes pipeline collection system is owned and operated by the West Stanislaus Irrigation District. Township/Range/Section: NW ¼, SW ¼, NW ¼, Section 26, T4S, R7E (DWR#4S/7E-26E) Latitude/Longitude: Lat. N 37° 33’ 43” Long. W 121° 10’ 27” County: Stanislaus USGS Quad Map: Westley, CA WATER SOURCE All water entering this closed pipeline is tail water from the West Stanislaus Irrigation District. During periods of no flow, some seepage does enter the pipeline due to high groundwater in the area, but the flow is small compared to the total discharge volume.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/26/04 02/16/05
Spring Runoff
04/29/04 04/20/05
Irrigation Season
07/29/04 07/20/05
Dry Season
09/29/04 09/21/05
APPENDIX O:
Delta Basin Site Information and Photographic Documentation
APPENDIX O: Delta Basin Site Information and Photographic Documentation O1: 544SJC001 – New Jerusalem Tile Drain…………………………………………03-04 O2: 544SJC505 – Tom Paine Slough at Paradise Road……..…….….……....……05-06 O3: 544SJC506 – Old River at Tracy Blvd……………....………….…………….......07-08 O4: 544SJC509 – Mountain House Creek at Mountain House Parkway….……….09-10
2
O1: 544SJC001 – New Jerusalem Tile Drain
MONITORING SITE INFORMATION Site Description, Location and Access: This tile drain system discharges to the SJR at approximately mile 63.5. There is a concrete deep structure on the levee and the sample is taken from the river side of the levee below this structure. The site is accessed via Wright Road northeast off of Kasson Road for approximately 1.25 miles to a barn and farmhouse. Take the dirt road at the farmhouse and go southeast to the levee. Go south on the levee for approximately 0.2 miles to the drop structure and sample site. Alternate access to this site is via the Banta Carbona Canal levee road on the North side of the Banta Carbona Lift Pumps (the pumps are located approximately 1.0 miles south of Wright Rd. on the East side of Kasson Rd). By driving NE on the levee road to a second gate (past the fish screen) the drop structure and site is accessed by foot. Walk NE on the levee road to the site. For access to the levee road from Kasson Rd, contact: Keith Robertson, partner of K&H Farms, cell-- (209) 914-1391 office (209) 836-2068. Latitude/Longitude: Lat. N 37° 42’ 32” Long. W 121° 17’ 55” County: San Joaquin WATER SOURCE: The water source for the drain farm tile drainage.
3
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
O2: 544SJC505 – Tom Paine Slough at Paradise Road
MONITORING SITE INFORMATION Site Description, Location and Access: Exit North onto Macarthur Boulevard off of Interstate 205. Make a right hand turn onto Arbor Road. Follow Arbor Road until it dead ends into Paradise Road. Make a left hand turn onto Paradise Road. Follow Tom Payne Slough along the right side of Paradise Road until you come to the bridge. Access is via the Northeast corner of the bridge. Latitude/Longitude: Lat. N 37° 46’ 27.1” Long. W 121° 22’ 55.8” County: San Joaquin WATER SOURCE Tom Payne Slough is a natural flood channel of the San Joaquin River. River and agricultural development has cut off the Slough from the San Joaquin River. Flow in the Slough is now from the Delta and return flows entering the Slough. The Slough, from its origin near the San Joaquin River to the tide gates at Sugar Cut, is dominated by agricultural activities and return flows. The portion downstream of the tide gates is a natural channel, but flow and quality are affected by NPDES discharges near Sugar Cut. These discharges also affect the quality in Tom Payne Slough during high tide periods as water flows into the Slough.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
O3: 544SJC506 – Old River at Tracy Blvd
MONITORING SITE INFORMATION Site Description, Location and Access: Exit North onto Tracy Boulevard off of Interstate 205. Follow Tracy Boulevard, North, until it comes to Old River, the first Bridge. Access is via the Northeast side of the Bridge next to the Gauging System. Latitude/Longitude: Lat. N 37° 48’ 17.2” Long. W 121° 26’ 58.3” County: San Joaquin WATER SOURCE A major river that borders the South Delta Basin, influenced heavily by river flow, pumping action, and tides. It is argued that Old River can be designated as a natural water body dominated by agricultural supply, but estuary flow characteristics are considered more dominant.
Water Year 2004 – Dry Water Year 2005 – Wet Rainy Season
02/24/04 02/23/05
Spring Runoff
04/28/04 04/26/05
Irrigation Season
07/28/04 07/26/05
Dry Season
09/29/04 09/27/05
O4: 544SJC509 – Mountain House Creek at Mountain House Parkway
MONITORING SITE INFORMATION Site Description, Location and Access: Going Northwest on Byron Highway (J4) out of Tracy, the Creek can be accessed on your right hand side approx. 2/5 mile after the Mt. House Parkway turn off. Access is via a dirt road that crosses over the Creek itself. Note: As you approach Mt. House Creek driving on Byron Highway, you will notice a row of trees that lines the creek on the left hand side of the Highway. Access is on your right where the creek crosses under the Highway. Latitude/Longitude: Lat. N 37o 47’ 8.88” Long. W -121o 32’ 8.12” County: San Joaquin WATER SOURCE The water type and source being discharged is farm tile drainage. This water discharges directly into Old River.
Water Year 2002 Water Year 2003 Rainy Season
01/29/02 01/28/03
Spring Runoff
04/23/02 04/22/03
Irrigation Season
06/18/02 06/24/03
Dry Season
08/27/02 08/26/03
APPENDIX P
EXCEEDANCE/ELEVATED LEVELS SUMMARY
Appendix P: Exceedance/elevated levels Summary
Temp Counts: Bay-Delta
Authority targets Temp (ºC)
Field SC Counts
Goal Basin PlanBasin Plan
(ref) Goal
San Joaquin River at Vernalis
SJR at Airport Way , Vernalis; Old r iver at tracy Road Bridge MUN
Total Program Count 2136 880 4210 2503 103 2909NA= Not Applicable/Not a designated Benificial Use
Field SC (umhos)
*Note for the Field SC Basin Plan objective for SJR at Airport Way the thirty day running average defined in the basin plan was not applied; looking only at individual grab samples.
from Goodwin Dam to SJR, Tuolumne from New Don Pedro
Dam to SJR, Fr iant Dam to Mendota Pool, McSWAIN
reservoir to SJR, Spawning3: Mendota dam to Vernalis, Mud
Slough North, Salt Slough.
Delta waters6:
except for periods of
storm runoff :Other Delta
waters
LocationBasin Plan (<6.5, >8.5) Basin Plan (5.0mg/L) Basin Plan (7.0mg/L)
Bas in Plan (150 NTU)
Main StemSJR @Sack Dam 65 4 51 NA 7 NA NASJR @ Lander 261 24 217 NA 26 NA NASJR @ Fremont Ford 256 2 214 NA 30 NA NASJR @ Hills Ferry 82 0 67 NA 6 NA NASJR @ Crows 259 0 216 NA 9 NA NASJR @ Patterson 260 10 215 NA 1 NA NASJR @ Maze 258 34 213 NA 3 NA NASJR @ Airport Way/Vernalis 263 42 216 NA 1 NA NA
1704 116 1409 NA 83 NA NASoutheast Bas in Deep Slough Green House Rd 54 8 43 NA 10 NA NASanta Rita Slough at Highway 152 5 0 1 NA 1 NA NA Bear Creek Bert Crane Rd 60 4 49 NA 2 NA NA
119 12 93 NA 13 0 NAGrassland BasinSalt Slough @Lander/Hwy 165 260 2 216 NA 60 NA NAMud Slough (n) (upstream) @ SLD 257 12 210 NA 30 NA NADischarge from SLD 261 43 218 NA 3 NA NAMud Slough (n) (downstream) @ SLD 261 17 218 NA 16 NA NA
1039 74 1005 NA 109 0 NAEastside BasinTurner Slough at 4th Avenue 51 5 47 NA 19 NA NAMerced River Hatf ield Park (River Rd) 54 5 46 NA 1 NA NAHarding Drain discharge @ SJR (TID5) 74 2 62 NA 2 NA NAFrench Camp Slough @ Airport 47 2 38 NA 9 NA NA
Lone Tree Creek @ Austin Rd 49 6 37 NA 7 NA NA Tuolumne River @ Shiloh 84 4 69 NA 2 NA NA Stanislaus River @Caswell 49 3 40 NA 0 NA NA
408 27 339 NA 40 0 NAWest Side BasinOrestimba Creek @ River Rd. 197 5 176 NA 5 NA NASolado Creek @ Hwy 33 70 10 61 NA 1 NA NADel Puerto Creek @Vineyard 68 10 56 NA 8 NA NAGrayson Drain 56 6 47 NA 2 NA NAIngram Creek @River Rd. 72 2 63 NA 1 NA NAHospital Creek @River Rd. 53 2 47 NA 1 NA NA
516 35 450 NA 18 0 NANortheast BasinCosumnes River @ Twin Cities Rd. 38 7 27 NA 0 NA NAMokelumne River @New Hope Rd. 57 5 48 NA 6 18 0Pixley Slough @ Davis Rd 53 2 47 NA 17 NA NABear Creek @ Thorton Road (J8) 25 2 16 2 NA 2 0Bear Creek @Lower Sacramento Rd. 36 0 36 NA 21 NA NA
209 16 174 2 44 20 0Delta BasinNew Jerusalem Drain 51 0 42 0 NA 13 0Tom Payne Slough @Paradise Rd. 55 0 46 10 NA 17 0Old River @Tracy Blvd 59 2 50 1 NA 20 0Mountain House Creek 20 1 12 1 NA 6 1
185 3 150 12 NA 56 1
4180 283 3620 14 307 76 1NA= Not Applicable/Not a designated Benificial Use
Total Main Stem Count 1028 874 335 51Southeast Bas in Deep Slough Green House Rd 535MER577 31 29 25 12Santa Rita Slough at Highway 152 541MER015 5 4 NA 0 Bear Creek Bert Crane Rd 535MER007 31 24 30 24
Total Southeast Basin Count 67 57 55 36Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 38 35 30 5Mud Slough (n) (upstream) @ San Luis Drain 541MER536 38 35 29 10Discharge from SLD 541MER535 33 30 21 1Mud Slough (n) (downstream) @ San Luis Drain 541MER542 39 37 28 3
Total Grassland Basin Count 148 137 108 19Eastside BasinTurner Slough at 4th Avenue 535MER576 29 28 28 23Merced River Hatf ield Park (River Road) 541MER546 26 7 26 7Harding Drain discharge @ San Joaquin River (TID5) 535STC501 34 31 40 33French Camp Slough @ Airport 531SJC504 28 25 22 10Lone Tree Creek @ Austin Rd 531SJC503 23 22 21 16 Tuolumne River @ Shiloh 535STC513 34 6 46 7 Stanislaus River @Caswell 535STC514 23 7 22 2
Total Eastside Basin Count 197 126 205 98West Side BasinOres timba Creek @ River Rd. 541STC019 33 22 39 27Solado Creek @ Hwy 33 541STC515 36 30 40 23Del Puerto Creek @Vineyard 541STC516 33 27 38 30Grayson Drain 541STC030 27 25 31 17Ingram Creek @River Rd. 541STC040 25 18 40 18Hospital Creek @River Rd. 541STC042 18 17 33 19
Total West Side Basin Count 172 139 221 134Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 21 8 16 2Mokelumne River @New Hope Rd. 544SAC002 30 7 28 2Pixley Slough @ Davis Rd 531SJC507 24 11 28 15Bear Creek @ Thorton Road (J8) 544SJC508 15 12 2 0Bear Creek @Lower Sacramento Rd. 531SJC515 14 13 28 6
Total Northeast Basin Count 104 51 102 25Delta Basin New Jerusalem Drain 544SJC001 28 7 20 0 Tom Payne Slough @Paradise Rd. 544SJC505 30 25 26 4Old River @Tracy Blvd 544SJC506 31 25 30 2Mountain House Creek 544SJC509 14 12 2 2
Total Delta Basin Count 103 69 78 8
Total Program Count 1819 1453 1104 371NA= Not Applicable/Not a designated Benificial Use
Basin Plan (ref) Basin Plan (ref) GoalMun Mun Aquatic Life
Location SiteCalifornia Primary
MCL (45mg/L)California Primary
MCL (10mg/L)
USEPA National Ambient W Q Criteria/1 hour average (calc)
Main StemSJR @Sack Dam 541MAD007 14 0 NA 0 NA 0SJR @ Lander 541MER522 22 0 NA 0 NA 0SJR @ Fremont Ford 541MER538 37 0 24 0 17 0SJR @ Hills Ferry 541STC512 11 0 NA 0 NA 0SJR @ Crows 535STC504 39 0 27 0 17 0SJR @ Patterson 541STC507 20 0 NA 0 1 0SJR @ Maze 541STC510 19 0 NA 0 1 0SJR @ Airport Way/Vernalis 541SJC501 23 0 NA 0 1 0
Total Main Stem Count 185 0 51 0 37 0Southeast Bas in Deep Slough Green House Rd 535MER577 11 0 NA 0 NA 0Santa Rita Slough at Highway 152 541MER015 4 0 NA 0 NA 0 Bear Creek Bert Crane Rd 535MER007 11 0 NA 0 NA 0
Total Southeast Basin Count 26 0 0 0 0 0Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 14 13 NA 0 NA 0
Mud Slough (n) (upstream) @ San Luis Drain 541MER536 30 0 25 0 18 0Discharge from SLD 541MER535 19 14 27 18 19 0Mud Slough (n) (downstream) @ San Luis Drain 541MER542 19 8 27 3 21 0
Total Grassland Basin Count 82 35 79 21 58 0Eastside BasinTurner Slough at 4th Avenue 535MER576 9 0 NA 0 NA 0Merced River Hatf ield Park (River Road) 541MER546 10 NA NA NA NA 0Harding Drain discharge @ San Joaquin River (TID5) 535STC501 14 0 NA 0 NA 0French Camp Slough @ Airport 531SJC504 11 0 31 0 NA 0Lone Tree Creek @ Austin Rd 531SJC503 14 0 NA 0 NA 0 Tuolumne River @ Shiloh 535STC513 14 0 NA 0 NA 0 Stanislaus River @Caswell 535STC514 11 0 NA 0 NA 0
Total Eastside Basin Count 83 0 31 0 0 0West Side BasinOres timba Creek @ River Rd. 541STC019 10 0 NA 0 1 0Solado Creek @ Hwy 33 541STC515 12 0 NA 0 NA 0Del Puerto Creek @Vineyard 541STC516 11 1 NA 0 NA 0Grayson Drain 541STC030 11 0 NA 0 NA 0Ingram Creek @River Rd. 541STC040 12 4 NA 0 NA 0Hospital Creek @River Rd. 541STC042 8 0 NA 0 NA 0
Total West Side Basin Count 64 5 0 0 1 0Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 9 0 NA 0 NA 0Mokelumne River @New Hope Rd. 544SAC002 12 NA NA NA NA 0Pixley Slough @ Davis Rd 531SJC507 9 0 NA 0 NA 0Bear Creek @ Thorton Road (J8) 544SJC508 12 0 NA 0 NA 0Bear Creek @Lower Sacramento Rd. 531SJC515 NA 0 NA 0 NA 0
Total Northeast Basin Count 42 0 0 0 0 0Delta Basin New Jerusalem Drain 544SJC001 10 10 NA 0 NA 0 Tom Payne Slough @Paradise Rd. 544SJC505 12 0 NA 0 NA 0Old River @Tracy Blvd 544SJC506 12 0 NA 0 NA 0Mountain House Creek 544SJC509 10 0 NA 0 NA 0
Total Delta Basin Count 44 10 0 0 0 0
Total Program Count 526 50 161 21 96 0NA= Not Applicable/Not a designated Benificial Use
Appendix P: Exceedance/elevated levels Summary continued… Total
Arsenic Sample Count
Total Cadmium Sample Count
Basin Plan (ref) Goal Goal Basin Plan (ref) Goal Goal
MUNIrrig. Water
Supply Drinking Water Mun Aquatic LifeIrr ig. Water
Total Main Stem Count 234 0 224 0 0 0 0Southeast Bas in Deep Slough Green House Rd 535MER577 26 0 26 0 0 0 0Santa Rita Slough at Highway 152 541MER015 5 0 5 0 0 0 0 Bear Creek Bert Crane Rd 535MER007 27 0 27 0 4 0 0
Total Southeast Basin Count 58 0 58 0 4 0 0Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 20 NA 29 NA 0 0 0
Mud Slough (n) (upstream) @ San Luis Drain 541MER536 30 NA 28 NA 0 0 0Discharge from SLD 541MER535 29 NA 28 NA 0 0 0Mud Slough (n) (downstream) @ San Luis Drain 541MER542 30 NA 28 NA 0 0 0
Total Grassland Basin Count 109 NA 113 NA 0 0 0Eastside BasinTurner Slough at 4th Avenue 535MER576 24 0 24 0 1 0 0Merced River Hatf ield Park (River Road) 541MER546 21 0 18 0 0 0 0Harding Drain discharge @ San Joaquin River (TID5) 535STC501 28 0 27 0 1 0 0French Camp Slough @ Airport 531SJC504 22 0 22 0 7 0 0Lone Tree Creek @ Austin Rd 531SJC503 22 0 21 0 9 0 0 Tuolumne River @ Shiloh 535STC513 28 0 26 0 1 0 0 Stanislaus River @Caswell 535STC514 20 0 18 0 0 0 0
Total Eastside Basin Count 165 0 156 0 19 0 0West Side BasinOres timba Creek @ River Rd. 541STC019 27 0 25 0 0 0 0Solado Creek @ Hwy 33 541STC515 25 0 23 0 0 0 0Del Puerto Creek @Vineyard 541STC516 20 0 18 0 0 0 0Grayson Drain 541STC030 22 4 20 0 0 0 0Ingram Creek @River Rd. 541STC040 25 3 23 0 2 0 0Hospital Creek @River Rd. 541STC042 17 3 15 0 1 0 0
Total West Side Basin Count 136 10 124 0 3 0 0Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 20 0 20 0 0 0 0Mokelumne River @New Hope Rd. 544SAC002 27 NA 27 NA 1 0 NAPixley Slough @ Davis Rd 531SJC507 23 0 23 0 11 0 0Bear Creek @ Thorton Road (J8) 544SJC508 20 0 20 0 5 0 0Bear Creek @Lower Sacramento Rd. 531SJC515 25 0 23 0 1 0 0
Total Northeast Basin Count 115 0 113 0 18 0 0Delta Basin New Jerusalem Drain 544SJC001 27 0 27 0 0 0 0 Tom Payne Slough @Paradise Rd. 544SJC505 27 0 27 0 0 0 0Old River @Tracy Blvd 544SJC506 27 0 27 0 0 0 0Mountain House Creek 544SJC509 16 0 16 0 0 0 0
Total Delta Basin Count 97 0 97 0 0 0 0
Total Program Count 914 10 885 0 44 0 0NA= Not Applicable/Not a designated Benificial Use
Total Main Stem Count 235Southeast Bas in Deep Slough Green House Rd 535MER577 26 0 0 0 25 0 0 0 0Santa Rita Slough at Highway 152 541MER015 5 0 0 0 5 0 0 0 0 Bear Creek Bert Crane Rd 535MER007 27 0 0 0 26 0 0 0 0
Total Southeast Basin Count 58 0 0 0 56 0 0 0 0Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 30 NA 0 0 29 NA 0 0 0
Mud Slough (n) (upstream) @ San Luis Drain 541MER536 30 NA 0 0 31 NA 0 0 0Discharge from SLD 541MER535 29 NA 0 0 30 NA 0 0 0Mud Slough (n) (downstream) @ San Luis Drain 541MER542 30 NA 0 0 31 NA 0 0 0
Total Grassland Basin Count 119 NA 0 0 121 NA 0 0 0Eastside BasinTurner Slough at 4th Avenue 535MER576 24 0 0 0 23 0 0 0 0Merced River Hatf ield Park (River Road) 541MER546 21 0 0 0 20 0 0 0 0Harding Drain discharge @ San Joaquin River (TID5) 535STC501 29 0 0 0 28 0 0 0 0French Camp Slough @ Airport 531SJC504 22 0 0 0 22 0 0 0 0Lone Tree Creek @ Austin Rd 531SJC503 23 0 0 0 22 0 0 0 0 Tuolumne River @ Shiloh 535STC513 29 0 0 0 28 0 0 0 0 Stanislaus River @Caswell 535STC514 21 0 0 0 20 0 0 0 0
Total Main Stem CountSoutheast Bas in Deep Slough Green House Rd 535MER577 25 0 0 0 0 14 0 0 0Santa Rita Slough at Highway 152 541MER015 5 0 0 0 0 1 0 0 0 Bear Creek Bert Crane Rd 535MER007 26 0 0 0 0 15 0 0 0
Total Southeast Basin Count 56 0 0 0 0 30 0 0 0Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 28 NA 0 0 0 19 NA 0 NA
Mud Slough (n) (upstream) @ San Luis Drain 541MER536 30 NA 0 0 0 21 NA 0 NADischarge from SLD 541MER535 29 NA 0 0 0 21 NA 0 NAMud Slough (n) (downstream) @ San Luis Drain 541MER542 30 NA 0 0 0 21 NA 0 NA
Total Grassland Basin Count 117 NA 0 0 0 82 NA 0 NAEastside BasinTurner Slough at 4th Avenue 535MER576 23 0 0 0 0 14 0 0 0Merced River Hatf ield Park (River Road) 541MER546 20 0 0 0 0 12 0 0 0Harding Drain discharge @ San Joaquin River (TID5) 535STC501 28 0 0 0 0 17 0 0 0French Camp Slough @ Airport 531SJC504 22 0 0 0 0 12 0 0 0Lone Tree Creek @ Austin Rd 531SJC503 22 0 0 0 0 11 0 0 0 Tuolumne River @ Shiloh 535STC513 27 0 0 0 0 17 0 0 0 Stanislaus River @Caswell 535STC514 20 0 0 0 0 12 0 0 0
Main StemSJR @Sack Dam 541MAD007 14 NA 0 14 0 21 NA 0SJR @ Lander 541MER522 17 NA 0 17 0 27 NA 0SJR @ Fremont Ford 541MER538 18 NA 0 18 0 25 NA 0SJR @ Hills Ferry 541STC512 12 NA 0 12 0 19 NA 0SJR @ Crows 535STC504 18 NA 0 18 0 25 NA 0SJR @ Patterson 541STC507 18 NA 0 18 0 25 NA 0SJR @ Maze 541STC510 17 NA 0 17 0 24 NA 0SJR @ Airport Way/Vernalis 541SJC501 18 NA 0 18 0 27 NA 0
Total Main Stem Count 132 NA 0 132 0 193 NA 0Southeast Bas in Deep Slough Green House Rd 535MER577 13 NA 0 13 0 21 NA 0Santa Rita Slough at Highway 152 541MER015 2 NA 0 2 0 5 NA 0 Bear Creek Bert Crane Rd 535MER007 14 NA 0 14 0 22 NA 0
Total Southeast Basin Count 29 NA 0 29 0 48 NA 0Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 14 NA 0 14 0 22 NA 0
Mud Slough (n) (upstream) @ San Luis Drain 541MER536 18 NA 0 18 0 25 NA 0Discharge from SLD 541MER535 17 NA 0 17 0 23 NA 0Mud Slough (n) (downstream) @ San Luis Drain 541MER542 18 NA 0 18 0 25 NA 0
Total Grassland Basin Count 67 NA 0 67 0 95 NA 0Eastside BasinTurner Slough at 4th Avenue 535MER576 13 NA 0 13 0 19 NA 0Merced River Hatf ield Park (River Road) 541MER546 13 NA 0 13 0 19 NA 0Harding Drain discharge @ San Joaquin River (TID5) 535STC501 12 NA 0 12 0 21 NA 0French Camp Slough @ Airport 531SJC504 14 NA 0 14 0 20 NA 0Lone Tree Creek @ Austin Rd 531SJC503 12 NA 0 12 0 20 NA 7 Tuolumne River @ Shiloh 535STC513 13 NA 0 13 0 22 NA 0 Stanislaus River @Caswell 535STC514 13 NA 0 13 0 19 NA 0
Total Eastside Basin Count 90 NA 0 90 0 140 NA 7West Side BasinOres timba Creek @ River Rd. 541STC019 14 NA 0 15 0 22 NA 0Solado Creek @ Hwy 33 541STC515 13 NA 0 13 0 19 NA 0Del Puerto Creek @Vineyard 541STC516 9 NA 0 9 0 14 NA 0Grayson Drain 541STC030 11 NA 0 11 0 16 NA 0Ingram Creek @River Rd. 541STC040 13 NA 0 13 0 19 NA 0Hospital Creek @River Rd. 541STC042 7 NA 0 7 0 10 NA 0
Total West Side Basin Count 67 NA 0 68 0 100 NA 0Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 8 NA 0 8 0 15 NA 0Mokelumne River @New Hope Rd. 544SAC002 14 0 0 14 0 21 0 0Pixley Slough @ Davis Rd 531SJC507 13 NA 0 13 0 17 NA 1Bear Creek @ Thorton Road (J8) 544SJC508 11 0 0 11 0 18 0 2Bear Creek @Lower Sacramento Rd. 531SJC515 3 0 0 3 0 3 0 0
Main StemSJR @Sack Dam 541MAD007 21 0 21 0 21 NA 0SJR @ Lander 541MER522 27 0 27 0 27 NA 0SJR @ Fremont Ford 541MER538 26 0 26 0 25 NA 0SJR @ Hills Ferry 541STC512 20 0 20 0 19 NA 0SJR @ Crows 535STC504 26 0 26 0 25 NA 0SJR @ Patterson 541STC507 26 0 26 0 25 NA 0SJR @ Maze 541STC510 25 0 25 0 24 NA 0SJR @ Airport Way/Vernalis 541SJC501 28 0 28 0 27 NA 0
Total Main Stem Count 199 0 199 0 193 NA 0Southeast Bas in Deep Slough Green House Rd 535MER577 21 0 21 0 21 NA 0Santa Rita Slough at Highway 152 541MER015 5 0 5 0 5 NA 0 Bear Creek Bert Crane Rd 535MER007 22 0 22 0 22 NA 0
Total Southeast Basin Count 48 0 48 0 48 NA 0Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 22 0 22 0 22 NA 0
Mud Slough (n) (upstream) @ San Luis Drain 541MER536 26 0 26 0 25 NA 0Discharge from SLD 541MER535 24 0 24 0 23 NA 0Mud Slough (n) (downstream) @ San Luis Drain 541MER542 26 0 26 0 25 NA 0
Total Grassland Basin Count 98 0 98 0 95 NA 0Eastside BasinTurner Slough at 4th Avenue 535MER576 19 0 19 0 19 NA 0Merced River Hatf ield Park (River Road) 541MER546 20 0 20 0 19 NA 0Harding Drain discharge @ San Joaquin River (TID5) 535STC501 22 0 22 0 21 NA 0French Camp Slough @ Airport 531SJC504 20 0 20 0 20 NA 0Lone Tree Creek @ Austin Rd 531SJC503 21 0 21 0 20 NA 0 Tuolumne River @ Shiloh 535STC513 23 0 23 0 22 NA 0 Stanislaus River @Caswell 535STC514 20 0 20 0 19 NA 0
Total Eastside Basin Count 145 0 145 0 140 NA 0West Side BasinOres timba Creek @ River Rd. 541STC019 23 0 23 0 22 NA 0Solado Creek @ Hwy 33 541STC515 20 0 20 0 19 NA 0Del Puerto Creek @Vineyard 541STC516 15 0 15 0 15 NA 0Grayson Drain 541STC030 17 0 17 0 17 NA 0Ingram Creek @River Rd. 541STC040 20 0 20 0 19 NA 0Hospital Creek @River Rd. 541STC042 11 0 11 0 11 NA 0
Total West Side Basin Count 106 0 106 0 103 NA 0Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 15 0 15 0 15 NA 0Mokelumne River @New Hope Rd. 544SAC002 21 0 21 0 21 0 0Pixley Slough @ Davis Rd 531SJC507 17 0 17 0 17 NA 0Bear Creek @ Thorton Road (J8) 544SJC508 18 0 18 0 18 0 0Bear Creek @Lower Sacramento Rd. 531SJC515 3 0 3 0 3 0 0
Total Northeast Basin Count 74 0 74 0 74 0 0Delta Basin New Jerusalem Drain 544SJC001 21 0 21 0 20 0 0 Tom Payne Slough @Paradise Rd. 544SJC505 21 0 21 0 21 0 0Old River @Tracy Blvd 544SJC506 21 0 21 0 21 0 0Mountain House Creek 544SJC509 14 0 14 0 14 0 0
Total Delta Basin Count 77 0 77 0 76 0 0
Total Program Count 747 0 747 0 729 0 0NA= Not Applicable/Not a designated Benificial Use
Total Main Stem Count 166 148 153 166Southeast Basin Deep Slough Green House Rd 535MER577 22 4 7 22Santa Rita Slough at Highway 152 541MER015 5 4 4 5 Bear Creek Bert Crane Rd 535MER007 23 1 1 1
Total Southeast Basin Count 50 9 12 28Grassland BasinSalt Slough @Lander/Hwy 165 541MER531 15 15 15 15Mud Slough (n) (upstream) @ San Luis Drain 541MER536 25 25 25 25Discharge from SLD 541MER535 16 16 16 16Mud Slough (n) (downstream) @ San Luis Drain 541MER542 16 16 16 16
Total Grassland Basin Count 72 72 72 72Eastside BasinTurner Slough at 4th Avenue 535MER576 20 4 4 11
Merced River Hatfield Park (River Road) 541MER546 12 0 0 2Harding Drain discharge @ San Joaquin River (TID5) 535STC501 25 18 20 25French Camp Slough @ Airport 531SJC504 20 0 0 2Lone Tree Creek @ Austin Rd 531SJC503 24 0 0 2 Tuolumne River @ Shiloh 535STC513 14 0 0 2 Stanislaus River @Caswell 535STC514 12 0 0 0
Total Eastside Basin Count 127 22 24 44West Side BasinOrestimba Creek @ River Rd. 541STC019 13 8 10 13Solado Creek @ Hwy 33 541STC515 23 20 21 23Del Puerto Creek @Vineyard 541STC516 17 15 17 17Grayson Drain 541STC030 20 17 18 20Ingram Creek @River Rd. 541STC040 23 23 23 23Hospital Creek @River Rd. 541STC042 13 12 12 13
Total West Side Basin Count 109 95 101 109Northeast BasinCosumnes River @ Twin Cities Rd. 531SAC001 9 0 0 0Mokelumne River @New Hope Rd. 544SAC002 12 0 NA NAPixley Slough @ Davis Rd 531SJC507 16 0 0 0Bear Creek @ Thorton Road (J8) 544SJC508 17 0 0 0Bear Creek @Lower Sacramento Rd. 531SJC515 3 0 0 0
Total Northeast Basin Count 57 0 0 0Delta Basin New Jerusalem Drain 544SJC001 21 21 21 21 Tom Payne Slough @Paradise Rd. 544SJC505 21 21 21 21Old River @Tracy Blvd 544SJC506 21 18 19 20Mountain House Creek 544SJC509 13 9 9 13
Total Delta Basin Count 76 69 70 75
Total Program Count 657 415 432 494NA= Not Applicable/Not a designated Benificial Use
Sodium (mg/L)
APPENDIX Q
WATER QUALITY OBJECTIVES/GOALS AND RELATED BENEFICIAL USE TABLES (Q1-Q3)
Appendix Q1: Basin Plan Objectives for the San Joaquin Basin Water Quality Objectives and Targets used to analyze San Joaquin River SWAMP data
Arsenic (Dissolved)
all
Critical Year10
Copper (Dissolved)
all
San Joaquin River between Turner Cut and Stockton. Sept 1- Nov 30All other2 Delta waters, excluding bodies of water constructed for special purposes and from which fish have been excluded or where the fishery is not important as a beneficial use.
all
Cold/Spawning: Cosumnes, Mokelumne, Calaveras, Stanislaus from Goodwin Dam to SJR, Tuolumne from New Don Pedro Dam to SJR, Friant Dam to Mendota Pool, McSWAIN reservoir to SJR, Spawning3: Mendota dam to Vernalis, Mud Slough North, Salt Slough.
all
Merced River from Cressy to New Exchequer Dam allTuolumne River from Waterford to La Grange Oct 15 - Jun 15
Apr 1- Aug 31Sep 1- Mar 31
pH5 all
Temperature5
See Resolution R5-2005-0119
Central Delta all
other Delta waters all
0-5 NTU no >1 NTU5-50 NTU no >20%
50-100 NTU no >10 NTU
>100 NTU no >10%<1 NTU no >5 NTU
1-5 NTU no >5 NTU
>5 NTU General turbidity objectives
Zinc (Dissolved)
all
San Joaquin River at Airport Way Bridge, Vernalis; Old River at Tracy Road Bridge11
8.0 mg/L
all
all
6.5 - 8.5
10 µg/L50 µg/L
Outside Delta (legal
boundaries)4
Electrical Conductivity
50 NTU
Dissolved Oxygen
Deer Creek, source to Cosumnes River. The following applies to daily maximum turbidity. For daily average turbidity see Resolution R5-2002-
0127. (ephemeral water body)
Delta waters6:
except for periods of
storm runoff
Turbidity
In fresh waters with designated COLD or WARM beneficial uses.San Joaquin River, mouth of the Merced River to Vernalis
Salt Slough, Mud Slough (north), San Joaquin River from Sack Dam to the mouth of Merced River
7.0 mg/L
0.1 mg/L
15 µg/LMonthly mean
allSan Joaquin River, mouth of the Merced River to Vernalis
700 µmhos/cm1000 µmhos/cm
Monthly mean
Constituent Location/Comment
Within Delta (legal
boundaries)
5.0 mg/L
Objective
Sacramento-San Joaquin Delta
Dates
SACRAMENTO-SAN JOAQUIN BASIN PLAN OBJECTIVES (CVRWQCB, 1998)
Boron (Total)
Numeric
2.0 mg/L
2.6 mg/L
Mar 15- Sept 15
Sept 16 -Mar 14
Monthly mean 0.8 mg/L
Sacramento-San Joaquin Delta 0.01 mg/L
all
150 NTU
6.0 mg/L
8.0 mg/L
19 µg/L
5 µg/L20 µg/L
4 day Average
Monthly mean
San Joaquin River, mouth of the Merced River to Vernalis
Monthly mean 1.3 mg/L0.01 mg/L
1.0 mg/L
4 day AverageSalt Slough, Mud Slough (north), and the San Joaquin River from Sack
Dam to the mouth of Merced River
Where natural turbidity is between:
all
all
Range 63-81ºF
Sacramento River and San Joaquin River Basins6
Deer Creek, source to Cosumnes River. The following applies to daily maximum temperature. For Monthly average temperature see Resolution
R5-2005-0119 (ephemeral water body).
Where the dilution ratio for discharges is < 20:1 and natural
turbidity is:Where natural
turbidity is:Where the
dilution ratio for discharges is
>20:1 and natural turbidity
is:
5 µg/L
all20 µg/L
Monthly mean 2 µg/L
Molybdenum (Total)
Selenium (Total)
Salt Slough and constructed and re-constructed water supply channels in the Grassland watershed listed in Appendix 40 (See Basin Plan).
Sacramento-San Joaquin Delta
12 µg/L
Appendix Q1: Basin Plan Objectives for the San Joaquin Basin continued…
pH5all
Temperature5all
Toxicity
all
TSS
all
SACRAMENTO-SAN JOAQUIN BASIN PLAN OBJECTIVES*Arsenic (Total)
all
Cadmium (Total)
all
Recommended 250 mg/LUpper 500 mg/L
Short Term 600 mg/LChromium
(Total)all
Copper (Total)
all
Lead (Total)all
Mercury (Total)
all
Nickel (Total)all
Nitrate (as NO3)
all
Nitrate-Nall
Recommended 900 µmhos/cmUpper 1600 µmhos/cm
Short Term 2200 µmhos/cm
Seleniumall
Recommended 250 mg/LUpper 500 mg/L
Short Term 600 mg/LRecommended 500mg/L
Upper 1000mg/LShort Term 1500 mg/L
Turbidityall
Zinc (Total)all
BAY-DELTA AUTHORITY TARGETS (CALFED Water Quality Program plan, 2000)
Temperature7/
8
April 1 - Jun 30 and Sept 1-
Nov 30TOC all
3 Spawning was used in areas designated as WARM and SPAWNING (Applied most limiting)4 Apply most limiting.5 Contains narrative and Numeric. Apply most limiting. 6 Exceptions to the following limit will be considered when a dredging operation can cause an increase in turbidity.7 Daily average temperature in all water-year types.8 Central Valley Regional Water Quality Control Board (CVRWQCB) Water Quality Control Plan
11 Maximum 30-day running average of mean daily, in µmhos/cm
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
50 µg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Secondary MCL
1000 µg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Secondary MCL
5 NTU
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
100 µg/L
45 mg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
10 mg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
2 µg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
5 µg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
50 µg/L
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Secondary MCL
Maximum Contaminant Level Ranges
all
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
Electrical Conductivity
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Secondary MCL
all Maximum Contaminant Level Ranges
SulfateWater Bodies Designated as Municipal and Domestic Supply (MUN)-
Drinking Water. California Secondary MCL
San Joaquin River at Vernalis <68 ºF
TDSWater Bodies Designated as Municipal and Domestic Supply (MUN)-
Drinking Water. California Secondary MCL all Maximum
Contaminant Level Ranges
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Secondary MCL
5000 µg/L
The suspended sediment load and suspended sediment discharge rate of surface waters shall not be altered in such a manner as to cause nuisance
or adversely affect beneficial uses.
Sacramento River and San Joaquin River Basins
Sacramento River and San Joaquin River Basins
Changes in normal ambient pH levels shall not exceed 0.5 in fresh waters with designated COLD
or WARM beneficial uses.
Sacramento River and San Joaquin River BasinsNarrative
At no time or place shall the temperature of intrastate waters be increased more than 5 ºF
above natural receiving water temperature.
Location/Comment Dates Objective
2 Refers to the above cell and the following: Sacramento river (below the I Street Bridge) and in all Delta waters west of the Antioch Bridge.
All waters shall be maintained free of toxic substances in concentrations that produce
detrimental physiological responses in human, plant, animal, or aquatic life.
Sacramento River and San Joaquin River Basins
3.0 mg/LSource water quality for the Delta
50 µg/L
all Maximum Contaminant Level Ranges
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
15 µg/L
10 See Table IV-3 in Basin Plan
Water Bodies Designated as Municipal and Domestic Supply (MUN)-Drinking Water. California Primary MCL
*Title 22 of the California code of regulations, which are incorporated by reference into the Sacramento-San Joaquin Basin Plan Objectives: Table 64431-A (Inorganic Chemicals), Table 64449-A (Secondary Maximum contaminant Levels-consumer Acceptance Limits) and Table 64449-B (Secondary Maximum Contaminant Levels-Ranges). Lead is stated in Article 19, Section 64468.1 and also in the Basin plan (III-3). Use the following objectives unless otherwise stated above.
Chloride
Constituent
Appendix Q2: Water Quality Goals for the San Joaquin Basin
UnitsDrinking
WaterAquatic
LifeIrrig. Water
Supply Rec. Use
24.1u1
36.1u2
Arsenic (dissolved) µg/L 340f
0.004m
10t
Boron (total) mg/L 1a 0.7e
Cadmium (dissolved) µg/L 1.6r
Cadmium (total) µg/L 0.07m 1.6r 10 e
Chloride mg/L 860j 106e
Copper (dissolved) µg/L 5.7h
1300g
170m
235 v
298 w
409 x
575 y
Electrical Conductivity µmhos/cm 700e
30-60 c
20 d
Lead (dissolved) µg/L 23.5l
Lead (total) µg/L 2m 25.4l 5000e
0.05g
1.2m
Molybdenum µg/L 10e 35q
Nickel (dissolved) µg/L 215.7n
610g
12m 216.1n 200e
1.4 j
SJR-BENEFICIAL USE(S)
Sodium mg/L 69 e
Indicator(s)Ammonia Nitrogen (NH3-N) mg N/L
200eCopper (total) µg/L 5.9h
Nickel (total)
Mercury (total) µg/L
µg/L
E. coli MPN/100mL
Arsenic (total) µg/L 100e
Appendix Q2: Water Quality Goals for the San Joaquin Basin continued…
UnitsDrinking
WaterAquatic
LifeIrrig. Water
Supply Rec. UseNitrate-nitrogen (NO3-N) mg/L 10m
Selenium µg/L 20b 20e 35q
Total Dissolved Solids mg/L 450e
Zinc (total) µg/L 55.1o 2000e 2100q
Zinc (dissolved) µg/L 53.9o
a California DHS Action Level for drinking waterb National Toxics Rule (USEPA) / 1-hour average (total)c Taste and odor threshold (USEPA Drinking Water Advisory)d USEPA Drinking Water Advisory for persons on restricted sodium diet eWater Quality for Agriculture (Ayers & Westcot)f California Toxics Rule (USEPA)/ 1-hour averageg California Toxics Rule (USEPA) for sources of drinking water j USEPA National Ambient W Q Criteria / 1-hour average
m California Public Health Goal for Drinking Water
Indicator(s)
SJR-BENEFICIAL USE(S)
Maximum concentation (1-hour Average,dissolved) =(e(0.9422*LN(hardness)-1.700))*(0.960)
Maximum concentration (1-hour Average, total recoverable) =(e(1.273*LN(hardness)-1.460))
Maximum concentration (1-hour Average, dissolved) =(e(1.273*LN(hardness)-1.460))*(1.46203-(LN(hardness)*0.145712))
h California Toxics Rule (USEPA): The concluding concentration was determined by using a 40 mg/L hardness. Where deviations from 40 mg/L of water hardness occur, the goals, in mg/L, shall be determined using the following formulas: (As hardness increases copper increases)
l California Toxics Rule (USEPA): The concluding concentration was determined by using a 40 mg/L hardness. Where deviations from 40 mg/L of water hardness occur, the goals, in mg/L, shall be determined using the following formulas: (As hardness increases lead increases)
Maximum concentration(1-hour Average,total recoverable) =(e(0.9422*LN(hardness)-1.700))
Appendix Q2: Water Quality Goals for the San Joaquin Basin continued…
t USEPA P
x USEPAC.L.)
Maximum concentration (1-hour Average, total recoverable)=(e(0.8473*LN(hardness)+0.884))
Maximum concentration(1-hour Average, total recoverable)=e(0.8460*LN(hardness)+2.255)
y USEPA 95% C.L.)
q USEPA Irelative so
r Californdeviationshardness i
v USEPA
w USEPAC.L.)
u1&2 USWhere devmore acidic to
o California Toxics Rule (USEPA): The concluding concentration was determined by using a 40 mg/L hardness. Where deviations from 40 mg/L of water hardness occur, the goals, in mg/L, shall be determined using the following formulas: (As hardness increases zinc increases)
Maximum concentration(1-hour Average, dissolved)=e(0.8460*LN(hardness)+2.255))*(0.998)
n California Toxics Rule (USEPA): The concluding concentration was determined by using a 40 mg/L hardness. Where deviations from 40 mg/L of water hardness occur, the goals, in mg/L, shall be determined using the following formulas: (As hardness increases nickel increases)
rimary MCL
Criteria Maximum concentration 1-hour Average (mg N/L):
Salmonids
Guideline - Single Sample Maximum Allowable Density: lightly used full body contact recreation (upper 90%
2- Absent:
Maximum concentration(1-hour Average, dissolved)=(e(0.8473*LN(hardness)+0.884))*(0.978)
Guideline - Single Sample Maximum Allowable Density: infrequently used full body contact recreation (upper
Maximum concentration (1 hour Average, total recoverable) =(exp(1.128*LN(hardness)-3.6867))
Maximum concentration (1-hour Average, dissolved) =(exp(1.128*LN(hardness)-3.6867))*(1.136672-(LN(hardness)*0.041838))
RIS Reference Dose (Assumes 70 kg body weight, 2 liters per day drinking water consumption, and 20 percent urce contrubution. An additional undertainty factor of 10 is used for Class C carcinogens.)
ia Toxics Rule (USEPA): The concluding concentration was determined by using a 40 mg/L hardness. Where from 40 mg/L of water hardness occur, the goals, in mg/L, shall be determined using the following formulas: (As ncreases cadmium increases)
Guideline - Single Sample Maximum Allowable Density: designated Beach Area (upper 75% C.L.)
Guideline - Single Sample Maximum Allowable Density: moderate full body contact recreation (upper 82%
EPA National Ambient Water Quality Criteria: the concluding concentration was determined by using a pH of 7. iations from pH of 7 occur, the goal, in mg/L, shall be determined using the following formulas: (As pH becomes
tal ammonia Nitrogen increases)
1- Present:
CMC =
0.2751+107.204−pH +
39.01+10pH−7.204
CMC =
0.4111+107.204−pH +
58.41+10pH−7.204
Appendix Q3: Site Specific Representations and Beneficial Use(s) By Sub-Areas (All identified uses are being evaluated whether or not designated in current Basin plan)
Process IND POW REC-2 WARM COLD
Mun
icip
al a
nd D
omes
tic
Supp
ly
Irri
gatio
n
Stoc
k W
ater
ing
Proc
ess
Serv
ice
Supp
ly
Pow
er
Con
tact
Can
oein
g an
d R
aftin
g
Oth
er N
onco
ntac
t
War
m
Col
d
War
m
Col
d
War
m
Col
d
Wild
life
Hab
itat
SJR @Sack Dam541MAD007
P E E E E E E E E E E P E D
SJR @ Lander541MER522
P E E E E E E E E E E P E D
SJR @ Fremont Ford541MER538
P E E E E E E E E E E P E D
SJR @ Hills Ferry541STC512
P E E E E E E E E E E P E D
SJR @ Crows535STC504
P E E E E E E E E E E E D
SJR @ Patterson541STC507
P E E E E E E E E E E E D
SJR @ Maze541STC510
P E E E E E E E E E E E D
SJR @ Airport Way/Vernalis541SJC501
P E E E E E E E E E E E D
North East Basin
Cosumnes River @ Twin Cities Rd.531SAC001
E E E E E E E E E E E E E D
Mokelumne River @ New Hope Rd.544SAC002
E E E E E E E E E E E E D
Pixley Slough @Davis Rd. *544SJC507
E E E E E E E E E E E E E T
Bear Creek @Thornton Rd (J8) *544SJC508
E E E E E E E E E E E E E T
Bear Creek @Lower Sacramento Rd. *531SJC515
E E E E E E E E E E E E E T
DRAINAGE BASIN INFLOWS TO SJR
WILD
Des
igna
ted
(D) o
r T
ribu
tary
(T)AGR REC-1 MIGR SPWN
RECREATION FRESHWATER MIGRATION
MAIN STEM SAN JOAQUIN RIVER
SPAWNING
SITE SPECIFIC MONITORING BY PROGRAM AND SUB-AREA BASIN Site ID A
pplic
able
Bas
in P
lan
Obj
ectiv
e Su
rfac
e W
ater
Bod
y D
esig
natio
n MUNAGRICULTURE INDUSTRY
Appendix Q3: Site Specific Representations and Beneficial Use(s) By Sub-Areas continued…
Process IND POW REC-2 WARM COLD
Mun
icip
al a
nd D
omes
tic
Supp
ly
Irri
gatio
n
Stoc
k W
ater
ing
Proc
ess
Serv
ice
Supp
ly
Pow
er
Con
tact
Can
oein
g an
d R
aftin
g
Oth
er N
onco
ntac
t
War
m
Col
d
War
m
Col
d
War
m
Col
d
Wild
life
Hab
itat
Eastside Basin
Lone Tree Creek *531SJC503
E E E E E E E E E E E E E T
French Camp Slough @ Airport *531SJC504
E E E E E E E E E E E E E T
Merced River Hatfield Park (River Road)541MER546
E E E E E E E E E E E E E E E D
Turner Slough @ 4th Avenue *535MER576
P E E E E E E E E E E P E T
TID 5 (Harding Drain)*535STC501
P E E E E E E E E E E E T
Tuolumne River @ Shiloh535STC513
P E E E E E E E E E E E E D
Stanislaus River @Caswell535STC514
P E E E E E E E E E E E E E E D
Southeast Basin
Lone Willow Slough *545MAD006
P E E E E E E E E E E P E T
Bear Creek @ Bert Crane Rd. *535MER007
P E E E E E E E E E E P E T
Deep Slough Green House Rd. *535MER577
P E E E E E E E E E E P E T
Grassland Basin
Discharge from San Luis Drain (SLD)*541MER535
L E E E E E E T
Mud Slough (upstream of SLD)541MER536
L E E E E E E D
Mud Slough (Downstream of SLD)541MER542
L E E E E E E D
Salt Slough @Lander/Hwy 165 541MER531
E E E E E E E D
AGR REC-1 MIGR SPWNMIGRATION SPAWNING
WILD
Des
igna
ted
(D) o
r T
ribu
tary
(T)
AGRICULTURE INDUSTRY RECREATION FRESHWATER
SITE SPECIFIC MONITORING BY PROGRAM AND SUB-AREA BASIN Site ID A
pplic
able
Bas
in P
lan
Obj
ectiv
e Su
rfac
e W
ater
Bod
y D
esig
natio
n MUN
Appendix Q3: Site Specific Representations and Beneficial Use(s) By Sub-Areas continued…
Process IND POW REC-2 WARM COLD
Mun
icip
al a
nd D
omes
tic
Supp
ly
Irri
gatio
n
Stoc
k W
ater
ing
Proc
ess
Serv
ice
Supp
ly
Pow
er
Con
tact
Can
oein
g an
d R
aftin
g
Oth
er N
onco
ntac
t
War
m
Col
d
War
m
Col
d
War
m
Col
d
Wild
life
Hab
itat
West Side Basin
Orestimba Creek @ River Rd. *541STC019
P E E E E E E E E E E E T
Solado Creek @ Hwy 33 *541STC515
P E E E E E E E E E E E T
Del Puerto Creek @Vineyard *541STC516
P E E E E E E E E E E E T
Grayson Drain *541STC030
P E E E E E E E E E E E T
Ingram Creek @River Rd. *541STC040
P E E E E E E E E E E E T
Hospital Creek @River Rd. *541STC042
P E E E E E E E E E E E T
Delta Basin
New Jerusalem Drain*544SJC501
E E E E E E E E E E E E T
Tom Payne Slough @Paradise Rd.544SJC505
E E E E E E E E E E E E E D
Old River @Tracy Blvd544SJC506
E E E E E E E E E E E E E D
Mt. House Creek @ Mt. House Parkway S544SJC509
E E E E E E E E E E E E E T
* = Beneficial uses not specifically designated, therefore current listing based on downstream beneficial useE = Exisiting beneficial usesP = Potential beneficial usesL=Existing Limited Beneficial Use
AGR REC-1 MIGR SPWNMIGRATION SPAWNING
WILD
Des
igna
ted
(D) o
r Tr
ibut
ary
(T)
AGRICULTURE INDUSTRY RECREATION FRESHWATER
SITE SPECIFIC MONITORING BY PROGRAM AND SUB-AREA BASIN Site ID A
pplic
able
Bas
in P
lan
Obj
ectiv
e Su
rfac
e W
ater
Bod
y D
esig
natio
n MUN
APPENDIX R
GRAPHICAL SUMMARY OF RESULTS
APPENDIX R: GRAPHICAL SUMMARY OF RESULTS R1: San Joaquin River Main Stem………………………………….……….1-53 R2: Northeast Basin………………………………………………………54-103 R3: Eastside Basin………………………………………………………104-153 R4: Southeast Basin……………………………………………….…….154-203 R5: Grassland Basin……………………………………………………..204-255 R6: Westside Basin…………………………………………..………….256-305 R7: South Delta Basin…………………………………………………...306-356
San Joaquin River Main Stem Temperature WY01-WY05
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tem
pera
ture
(ºC
)
SJR @Sack Dam
SJR @ Lander
SJR @ Fremont Ford
SJR @ Hills Ferry
SJR @ Crows
R1-1
1
San Joaquin River Main StemTemperature WY01- WY05
0
5
10
15
20
25
30
35
SJR @SackDam
SJR @ Lander SJR @Fremont Ford
SJR @ HillsFerry
SJR @ Crows SJR @Patterson
SJR @ Maze SJR @ AirportWay/Vernalis
Tem
pera
ture
(ºC
)
Median
R1-2
2
San Joaquin River Main Stem Specific Conductivity WY01-WY05
San Joaquin River Main StemTotal Alkalinity WY01-WY03
0
50
100
150
200
250
300
SJR @SackDam
SJR @ Lander SJR @Fremont Ford
SJR @ HillsFerry
SJR @ Crows SJR @Patterson
SJR @ Maze SJR @ AirportWay/Vernalis
Tota
l Alk
alin
ity (m
g/L)
Median
R1-51
51
San Joaquin River Main Stem Sodium WY01-WY03
0
50
100
150
200
250
300
350
400
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Sodi
um (m
g/L)
SJR @Sack Dam SJR @ Lander SJR @ Fremont Ford SJR @ Hills Ferry SJR @ Crows SJR @ Patterson SJR @ Maze SJR @ Airport Way/Vernalis Water Quality for Agriculture(Ayers & Westcot) (69 mg/L)
R1-52
52
San Joaquin River Main StemSodium WY01-WY03
0
50
100
150
200
250
300
350
400
SJR @SackDam
SJR @ Lander SJR @Fremont Ford
SJR @ HillsFerry
SJR @ Crows SJR @Patterson
SJR @ Maze SJR @ AirportWay/Vernalis
Sodi
um (m
g/L)
MedianWater Quality for Agriculture (Ayers & Westcot) (69 mg/L)
R1-53
53
San Joaquin River Northeast Basin Temperature WY01-WY05
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Oct
-05
Jan-
06
Sample Date
Tem
pera
ture
(ºC
)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Bay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
R2-1
54
San Joaquin River Northeast BasinTemperature WY01- WY05
0
5
10
15
20
25
30
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Tem
pera
ture
(ºC
)
Median
R2-2
55
San Joaquin River Northeast Basin Specific Conductivity WY01- WY05
0
200
400
600
800
1000
1200
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Oct
-05
Jan-
06
Sample Date
SC (μ
mho
s/cm
)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Basin Plan Objective (Apr 1-Aug 31, 700 μmhos/cm; Sep 1-Mar 31,1000 μmhos/cm)
R2-3
56
San Joaquin River Northeast BasinSpecific Conductivity WY01- WY05
0
100
200
300
400
500
600
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Median
R2-4
57
San Joaquin River Northeast Basin pH WY01-WY05
5
6
7
8
9
10
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
pH
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd. Basin Plan Objective (6.5-8.5)
R2-5
58
San Joaquin River Northeast BasinpH WY01- WY05
5
6
7
8
9
10
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
pH
MedianBasin Plan Objective (6.5-8.5)
R2-6
59
San Joaquin River Northeast Basin Dissolved Oxygen WY01-WY05
0
2
4
6
8
10
12
14
16
18
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Oct
-05
Jan-
06
Sample Date
DO
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd. Basin Plan Objective (7.0 mg/L)
R2-7
60
San Joaquin River Northeast BasinDissolved Oxygen WY01- WY05
0
2
4
6
8
10
12
14
16
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Dis
solv
ed O
xyge
n (m
g/L)
MedianBasin Plan Objective (7.0 mg/L)
R2-8
61
San Joaquin River Notheast Basin Turbidity WY02-WY04
0
50
100
150
200
250
300
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Sample Date
Turb
idity
(ntu
)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd.
R2-9
62
San Joaquin River Northeast BasinTurbidity WY02- WY04
0
50
100
150
200
250
300
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Turb
idity
(ntu
)
Median
R2-10
63
San Joaquin River Notheast Basin Total Suspended Solids WY01
0
10
20
30
40
50
60
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Sample Date
TSS
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)
R2-11
64
San Joaquin River Northeast BasinTotal Suspended Solids WY01- WY05
0
10
20
30
40
50
60
Cosumnes River @ Twin CitiesRd.
Mokelumne River @New HopeRd.
Pixley Slough @ Davis Rd Bear Creek @ Thorton Road(J8)
Tota
l Sus
pend
ed S
olid
s (m
g/L)
Median
R2-12
65
San Joaquin River Northeast BasinTotal Organic Carbon WY01-WY05
0
5
10
15
20
25
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TOC
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd. Bay-Delta Authority Target (3 mg/L)
R2-13
66
San Joaquin River Northeast BasinTotal Organic Carbon WY01- WY05
0
5
10
15
20
25
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Tota
l Org
anic
Car
bon
(mg/
L)
MedianBay-Delta Authority Target (3 mg/L)
R2-14
67
San Joaquin River Northeast Basin Total Coliform WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
/100
ml)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd.
R2-15
68
San Joaquin River Northeast BasinTotal Coliform WY02- WY05
0
500
1000
1500
2000
2500
3000
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Tota
l Col
iform
(MPN
/100
ml)
Median
R2-16
69
San Joaquin River Northeast Basin Escherichia coli WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
E. c
oli
(MPN
/100
ml)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. USEPA Guideline - Designated beach area. (235 MPN/100 mL)
R2-17
70
San Joaquin River Northeast BasinEscherichia coli WY02-WY05
San Joaquin River Northeast Basin Carbonate WY01-WY03
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Car
bona
te (m
g/L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd.
R2-43
96
San Joaquin River Northeast BasinCarbonate WY01-WY03
0
0.1
0.2
0.3
0.4
0.5
0.6
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Car
bona
te (m
g/L)
Median
R2-44
97
San Joaquin River Northesat Basin Bicarbonate WY01-WY03
0
20
40
60
80
100
120
140
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Bic
arbo
nate
(mg/
L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd.
R2-45
98
San Joaquin River Northeast BasinBicarbonate WY01-WY03
0
20
40
60
80
100
120
140
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Bic
arbo
nate
(mg/
L)
Median
R2-46
99
San Joaquin River Northeast Basin Total Alkalinity WY01-WY03
0
20
40
60
80
100
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Tota
l Alk
alin
ity (m
g/L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis RdBear Creek @ Thorton Road (J8) Bear Creek @Lower Sacramento Rd.
R2-47
100
San Joaquin River Northeast BasinTotal Alkalinity WY01-WY03
0
20
40
60
80
100
120
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Tota
l Alk
alin
ity (m
g/L)
Median
R2-48
101
San Joaquin River Northeast Basin Sodium WY01-WY03
0
10
20
30
40
50
60
70
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Sodi
um (m
g/L)
Cosumnes River @ Twin Cities Rd. Mokelumne River @New Hope Rd. Pixley Slough @ Davis Rd Bear Creek @ Thorton Road (J8)Bear Creek @Lower Sacramento Rd. Water Quality for Agriculture(Ayers & Westcot) (69 mg/L)
R2-49
102
San Joaquin River Northeast BasinSodium WY01-WY03
0
10
20
30
40
50
60
70
Cosumnes River @ TwinCities Rd.
Mokelumne River @NewHope Rd.
Pixley Slough @ DavisRd
Bear Creek @ ThortonRoad (J8)
Bear Creek @LowerSacramento Rd.
Sodi
um (m
g/L)
MedianWater Quality for Agriculture (Ayers & Westcot) (69 mg/L)
R2-50
103
San Joaquin River East Side Basin Temperature WY01-WY05
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tem
p (º
C)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin RdBay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
R3-1
104
San Joaquin River Eastside BasinTemperature WY01- WY05
0
5
10
15
20
25
30
35
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Tem
pera
ture
(ºC
)
Median
R3-2
105
San Joaquin River East Side Basin Specific Conductivity WY01-WY05
0
200
400
600
800
1000
1200
1400
1600
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell Basin Plan Objective (Apr 1-Aug 31, 700 μmhos/cm; Sep 1-Mar 31,1000 μmhos/cm)French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-3
106
San Joaquin River Eastside BasinSpecific Conductivity WY01- WY05
0
200
400
600
800
1000
1200
1400
1600
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Median
R3-4
107
San Joaquin River East Side Basin pH WY01-WY05
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
pH
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell Basin Plan Objective (6.5-8.5)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
R3-5
108
San Joaquin River Eastside BasinpH WY01- WY05
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
pH
MedianBasin Plan Objective (6.5-8.5)
R3-6
109
San Joaquin River East Side Basin Dissolved Oxygen WY01-WY05
0
2
4
6
8
10
12
14
16
18
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
DO
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell Basin Plan Objective (7.0 mg/L)French Camp Slough @ Airport
R3-7
110
San Joaquin River Eastside BasinDissolved Oxygen WY01- WY05
0
2
4
6
8
10
12
14
16
18
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Dis
solv
ed O
xyge
n (m
g/L)
MedianBasin Plan Objective (7.0 mg/L)
R3-8
111
San Joaquin River East Side Basin Turbidity WY02-WY04
0
100
200
300
400
500
600
700
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Sample Date
Turb
idity
(ntu
)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-9
112
San Joaquin River Eastside BasinTurbidity WY02- WY04
0
100
200
300
400
500
600
700
800
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Turb
idity
(ntu
)
Median
R3-10
113
San Joaquin River East Side Basin Total Suspended Solids WY01-WY03
0
20
40
60
80
100
120
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
TSS
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-11
114
San Joaquin River Eastside BasinTotal Suspended Solids WY01- WY05
0
20
40
60
80
100
120
140
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Tota
l Sus
pend
ed S
olid
s (m
g/L)
Median
R3-12
115
San Joaquin River East Side Basin Total Orgainic Carbon WY01-WY05
0
10
20
30
40
50
60
70
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TOC
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell Bay-Delta Authority Target (3 mg/L)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
R3-13
116
San Joaquin River Eastside BasinTotal Organic Carbon WY01- WY05
0
10
20
30
40
50
60
70
80
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Tota
l Org
anic
Car
bon
(mg/
L)
MedianBay-Delta Authority Target (3 mg/L)
R3-14
117
San Joaquin River East Side Basin Total Coliform WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
/100
ml)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-15
118
San Joaquin River Eastside BasinTotal Coliform WY02- WY05
0
500
1000
1500
2000
2500
3000
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Tota
l Col
iform
(MPN
/100
ml)
Median
R3-16
119
San Joaquin River East Side Basin Escherichia coli WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
E. c
oli
(MPN
/100
ml)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell USEPA Guideline - Designated beach area. (235 MPN/100 mL)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
R3-17
120
San Joaquin River Eastside BasinEscherichia coli WY02-WY05
San Joaquin River East Side Basin Nitrate WY01-WY02
0
5
10
15
20
25
30
35
40
45
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Sample Date
Nitr
ate
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell California Primary MCL (45mg/L)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
R3-19
122
San Joaquin River Eastside BasinNitrate WY01-WY04
0
5
10
15
20
25
30
35
40
45
50
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Nitr
ate
(mg/
L)
MedianCalifornia Primary MCL (45mg/L)
R3-20
123
San Joaquin River East Side BasinTotal Kjeldahl Nitrogen WY01-WY03
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
TKN
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-21
124
San Joaquin River Eastside BasinTotal Kjeldahl Nitrogen WY01-WY05
0
5
10
15
20
25
30
35
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
TKN
(mg/
L)
Median
R3-22
125
San Joaquin River East Side Basin Phosphorus WY01-WY03
0
2
4
6
8
10
12
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Phos
phor
us (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-23
126
San Joaquin River Eastside BasinPhosphorus WY01-WY05
0
2
4
6
8
10
12
14
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Phos
phor
us (m
g/L)
Median
R3-24
127
San Joaquin River East Side Basin Orthophosphate-P WY01-WY03
0
2
4
6
8
10
12
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Ort
ho-P
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-25
128
San Joaquin River Eastside BasinOrthophosphate-P WY01-WY05
0
2
4
6
8
10
12
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Ort
hoph
osph
ate-
P (m
g/L)
Median
R3-26
129
San Joaquin River East Side Basin Potassium WY01-WY03
0
10
20
30
40
50
60
70
80
90
100
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Pota
ssiu
m (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-27
130
San Joaquin River Eastside BasinPotassium WY01-WY04
0
20
40
60
80
100
120
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Pota
ssiu
m (m
g/L)
Median
R3-28
131
San Joaquin River East Side Basin Biochemical Oxygen Demand 5-Day WY01-WY03
0
1
2
3
4
5
6
7
8
9
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
BO
D 5
-Day
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-29
132
San Joaquin River Eastside BasinBiological Oxygen Demand 5-Day WY01-WY03
0
2
4
6
8
10
12
14
16
18
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
BO
D- 5
(mg/
L)
Median
R3-30
133
San Joaquin River East Side Basin Biochemical Oxygen Demand 10-Day WY01-WY03
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
BO
D 1
0-D
ay (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-31
134
San Joaquin River Eastside BasinBiological Oxygen Demand 10-Day WY01-WY03
0
5
10
15
20
25
30
35
40
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
BO
D- 1
0 (m
g/L)
Median
R3-32
135
San Joaquin River East Side Basin Chloride WY01-WY03
0
50
100
150
200
250
300
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Chl
orid
e (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell California Secondary MCL (recommended level) (250 mg/L)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
R3-33
136
San Joaquin River Eastside BasinChloride WY01-WY03
San Joaquin River East Side Basin Sulfate WY01-WY03
0
50
100
150
200
250
300
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Sulfa
te (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell California Secondary MCL (recommended level) (250 mg/L)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
San Joaquin River East Side Basin Calcium WY01-WY03
0
10
20
30
40
50
60
70
80
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Cal
cium
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-37
140
San Joaquin River Eastside BasinCalcium WY01-WY03
0
10
20
30
40
50
60
70
80
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Cal
cium
(mg/
L)
Median
R3-38
141
San Joaquin River East Side Basin Magnesium WY01-WY03
0
5
10
15
20
25
30
35
40
45
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Mag
nesi
um (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-39
142
San Joaquin River Eastside BasinMagnesium WY01-WY03
0
5
10
15
20
25
30
35
40
45
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Mag
nesi
um (m
g/L)
Median
R3-40
143
San Joaquin River East Side Basin Total Dissolved Solids WY01-WY03
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
TDS
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell California Secondary MCL (recommended level) (500 mg/L)French Camp Slough @ Airport Lone Tree Creek @ Austin Rd
R3-41
144
San Joaquin River Eastside BasinTotal Dissolved Solids WY01-WY03
San Joaquin River East Side Basin Carbonate WY01-WY03
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Sample Date
Car
bona
te (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-43
146
San Joaquin River Eastside BasinCarbonate WY01-WY03
0
5
10
15
20
25
30
35
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Car
bona
te (m
g/L)
Median
R3-44
147
San Joaquin River East Side BasinBicarbonate WY01-WY03
0
200
400
600
800
1000
1200
1400
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Bic
arbo
nate
(mg/
L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-45
148
San Joaquin River Eastside BasinBicarbonate WY01-WY03
0
200
400
600
800
1000
1200
1400
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Bic
arbo
nate
(mg/
L)
Median
R3-46
149
San Joaquin River East Side Basin Total Alkalinity WY01-WY03
0
200
400
600
800
1000
1200
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Tota
l Alk
alin
ity (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd
R3-47
150
San Joaquin River Eastside BasinTotal Alkalinity WY01-WY03
0
200
400
600
800
1000
1200
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Tota
l Alk
alin
ity (m
g/L)
Median
R3-48
151
San Joaquin River East Side Basin Sodium WY01-WY03
0
50
100
150
200
250
300
350
400
450
500
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Sodi
um (m
g/L)
Turner Slough at 4th Avenue Merced River Hatfield Park (River Road) Harding Drain discharge @ San Joaquin River (TID5) Tuolumne River @ Shiloh Stanislaus River @Caswell French Camp Slough @ AirportLone Tree Creek @ Austin Rd Water Quality for Agriculture(Ayers & Westcot) (69 mg/L)
R3-49
152
San Joaquin River Eastside BasinSodium WY01-WY03
0
50
100
150
200
250
300
350
400
450
500
Turner Slough at4th Avenue
Merced RiverHatfield
Park(River Rd)
Lone Tree Creek@ Austin Rd
French CampSlough @ Airport
Harding Drain @SJR (TID5)
Tuolumne River@ Shiloh
Stanislaus River@Caswell
Sodi
um (m
g/L)
MedianWater Quality for Agriculture (Ayers & Westcot) (69 mg/L)
R3-50
153
San Joaquin River Southeast Basin Temperature WY01-WY05
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tem
pera
ture
(ºC
)
Deep Slough Green House RdBear Creek Bert Crane Rd Santa Rita Slough at Highway 152 Bay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
R4-1
154
San Joaquin River Southeast BasinTemperature WY01- WY05
0
5
10
15
20
25
30
35
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Tem
pera
ture
(ºC
)
Median
R4-2
155
San Joaquin River Southeast Basin Specific Conductivity WY01-WY05
0
200
400
600
800
1000
1200
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
SC (μ
mho
s/cm
)
Deep Slough Green House RdBear Creek Bert Crane Rd Basin Plan Objective (Apr 1-Aug 31, 700 μmhos/cm; Sep 1-Mar 31,1000 μmhos/cm)Santa Rita Slough at Highway 152
R4-3
156
San Joaquin River Southeast BasinSpecific Conductivity WY01- WY05
0
200
400
600
800
1000
1200
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Median
R4-4
157
San Joaquin River Southeast Basin pH WY01-WY05
6.0
6.5
7.0
7.5
8.0
8.5
9.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
pH
Deep Slough Green House Rd Bear Creek Bert Crane Rd Basin Plan Objective (6.5-8.5) Santa Rita Slough at Highway 152
R4-5
158
San Joaquin River Southeast BasinpH WY01- WY05
6
6.5
7
7.5
8
8.5
9
9.5
10
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
pH
MedianBasin Plan Objective (6.5-8.5)
R4-6
159
San Joaquin River Southeast Basin Dissolved Oxygen WY01-WY05
4
6
8
10
12
14
16
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
DO
(mg/
L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Basin Plan Objective (7.0 mg/L) Santa Rita Slough at Highway 152
R4-7
160
San Joaquin River Southeast BasinDissolved Oxygen WY01- WY05
0
2
4
6
8
10
12
14
16
18
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Dis
solv
ed O
xyge
n (m
g/L)
MedianBasin Plan Objective (7.0 mg/L)
R4-8
161
San Joaquin River Southeast Basin Turbidity WY02-WY04
0
50
100
150
200
250
300
350
400
450
500
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Sample Date
Turb
idity
(ntu
)
Deep Slough Green House Rd Bear Creek Bert Crane Rd
R4-9
162
San Joaquin River Southeast BasinTurbidity WY02- WY04
0
100
200
300
400
500
600
Deep Slough Green House Rd Bear Creek Bert Crane Rd
Turb
idity
(ntu
)
Median
R4-10
163
San Joaquin River Southeast Basin Total Suspended Solids WY01
0
50
100
150
200
250
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Sample Date
TSS
(mg/
L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Santa Rita Slough at Highway 152
R4-11
164
San Joaquin River Southeast BasinTotal Suspended Solids WY01- WY05
0
50
100
150
200
250
SJR @Sack Dam SJR @ Lander SJR @ Fremont Ford
Tota
l Sus
pend
ed S
olid
s (m
g/L)
Median
R4-12
165
San Joaquin River Southeast Basin Total Organic Carbon WY01-WY05
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TOC
(mg/
L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Santa Rita Slough at Highway 152 Bay-Delta Authority Target (3 mg/L)Bay-Delta Authority Target (3 mg/L)
R4-13
166
San Joaquin River Southeast BasinTotal Organic Carbon WY01- WY05
0
5
10
15
20
25
30
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Tota
l Org
anic
Car
bon
(mg/
L)
MedianBay-Delta Authority Target (3 mg/L)
R4-14
167
San Joaquin River Southeast Basin Total Coliform WY02-WY05
500
700
900
1100
1300
1500
1700
1900
2100
2300
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
/100
ml)
Deep Slough Green House Rd Bear Creek Bert Crane Rd
R4-15
168
San Joaquin River Southeast BasinTotal Coliform WY02- WY05
0
500
1000
1500
2000
2500
3000
Deep Slough Green House Rd Bear Creek Bert Crane Rd
Tota
l Col
iform
(MPN
/100
ml)
Median
R4-16
169
San Joaquin River Southeast Basin Escherichia coli WY02-WY05
0
500
1000
1500
2000
2500
3000
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
E. c
oli
(MPN
/100
ml)
Deep Slough Green House Rd Bear Creek Bert Crane Rd USEPA Guideline - Designated beach area. (235 MPN/100 mL)
R4-17
170
San Joaquin River Southeast BasinEscherichia coli WY02-WY05
0
500
1000
1500
2000
2500
3000
Deep Slough Green House Rd Bear Creek Bert Crane Rd
San Joaquin River Southeast Basin Carbonate WY01-WY03
0
10
20
30
40
50
60
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Car
bona
te (m
g/L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Santa Rita Slough at Highway 152
R4-43
196
San Joaquin River Southeast BasinCarbonate WY01-WY03
0
10
20
30
40
50
60
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Car
bona
te (m
g/L)
Median
R4-44
197
San Joaquin River Southeast Basin Bicarbonate WY01-WY03
0
50
100
150
200
250
300
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Bic
arbo
nate
(mg/
L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Santa Rita Slough at Highway 152
R4-45
198
San Joaquin River Southeast BasinBicarbonate WY01-WY03
0
50
100
150
200
250
300
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Bic
arbo
nate
(mg/
L)
Median
R4-46
199
San Joaquin River Southeast Basin Total Alkalinity WY01-WY03
0
50
100
150
200
250
300
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Tota
l Alk
alin
ity (m
g/L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Santa Rita Slough at Highway 152
R4-47
200
San Joaquin River Southeast BasinTotal Alkalinity WY01-WY03
0
50
100
150
200
250
300
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Tota
l Alk
alin
ity (m
g/L)
Median
R4-48
201
San Joaquin River Southeast Basin Sodium WY01-WY03
0
10
20
30
40
50
60
70
80
90
100
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Sodi
um (m
g/L)
Deep Slough Green House Rd Bear Creek Bert Crane Rd Water Quality for Agriculture(Ayers & Westcot) (69 mg/L) Santa Rita Slough at Highway 152
R4-49
202
San Joaquin River Southeast BasinSodium WY01-WY03
0
10
20
30
40
50
60
70
80
90
100
Santa Rita Slough at Highway 152 Deep Slough Green House Rd Bear Creek Bert Crane Rd
Sodi
um (m
g/L)
MedianWater Quality for Agriculture (Ayers & Westcot) (69 mg/L)
R4-50
203
San Joaquin River Grassland Basin Temperature WY01-WY05
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tem
pera
ture
(ºC
)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain Bay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
R5-1
204
San Joaquin River Grassland BasinTemperature WY01- WY05
0
5
10
15
20
25
30
35
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Tem
pera
ture
(ºC
)
Median
R5-2
205
San Joaquin River Grassland Basin Specific Conductivity WY01-WY05
0
1000
2000
3000
4000
5000
6000
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
SC (μ
mho
s/cm
)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain Basin Plan Objective (Apr 1-Aug 31, 700 μmhos/cm; Sep 1-Mar 31,1000 μmhos/cm)
R5-3
206
San Joaquin River Grassland BasinSpecific Conductivity WY01- WY05
0
1000
2000
3000
4000
5000
6000
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Median
R5-4
207
San Joaquin River Grassland Basin pH WY01-WY05
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
pH
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain Basin Plan Objective (6.5-8.5)
R5-5
208
San Joaquin River Grassland BasinpH WY01- WY05
6
6.5
7
7.5
8
8.5
9
9.5
10
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
pH
MedianBasin Plan Objective (6.5-8.5)
R5-6
209
San Joaquin River Grassland Basin Dissolved Oxygen WY01-WY05
0
5
10
15
20
25
30
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
DO
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain Basin Plan Objective (7.0 mg/L)
R5-7
210
San Joaquin River Grassland BasinDissolved Oxygen WY01- WY05
0
5
10
15
20
25
30
35
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Dis
solv
ed O
xyge
n (m
g/L)
MedianBasin Plan Objective (7.0 mg/L)
R5-8
211
San Joaquin River Grassland Basin Turbidity WY01-WY05
0
100
200
300
400
500
600
700
800
900
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Sample Date
Turb
idity
(ntu
)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-9
212
San Joaquin River Grassland BasinTurbidity WY02- WY04
0
50
100
150
200
250
300
350
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Turb
idity
(ntu
)
Median
R5-10
213
San Joaquin River Grassland Basin Total Suspended Solids WY01-WY05
0
20
40
60
80
100
120
140
160
180
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TSS
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-11
214
San Joaquin River Grassland BasinTotal Suspended Solids WY01- WY05
0
20
40
60
80
100
120
140
160
180
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Tota
l Sus
pend
ed S
olid
s (m
g/L)
Median
R5-12
215
San Joaquin River Grassland Basin Total Organic Carbon WY01-WY05
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TOC
(mg/
L)
Mud Slough (n) (upstream) @ San Luis Drain Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain Bay-Delta Authority Target (3 mg/L)
R5-13
216
San Joaquin River Grassland BasinTotal Organic Carbon WY01- WY05
0
5
10
15
20
25
30
35
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Tota
l Org
anic
Car
bon
(mg/
L)
MedianBay-Delta Authority Target (3 mg/L)
R5-14
217
San Joaquin River Grassland Basin Total Coliform WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
/100
ml)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-15
218
San Joaquin River Grassland BasinTotal Coliform WY02- WY05
0
500
1000
1500
2000
2500
3000
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Tota
l Col
iform
(MPN
/100
ml)
Median
R5-16
219
San Joaquin River Grassland Basin Echerichia coli WY02-WY05
0
200
400
600
800
1000
1200
1400
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
E. c
oli
(MPN
/100
ml)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain USEPA Guideline - Designated beach area. (235 MPN/100 mL)
E. coli
2100
2300
2500
Apr
-03
Jun-
03
Sample Date
E. c
oli
(MPN
/100
ml)
R5-17
220
San Joaquin River Grassland BasinEscherichia coli WY02-WY05
0
500
1000
1500
2000
2500
3000
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
San Joaquin River Grassland BasinNitrate WY01-WY04
0
20
40
60
80
100
120
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Sample Date
Nitr
ate
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain California Primary MCL (45mg/L)
R5-19
222
San Joaquin River Grassland BasinNitrate WY01-WY04
0
20
40
60
80
100
120
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Nitr
ate
(mg/
L)
MedianCalifornia Primary MCL (45mg/L)
R5-20
223
San Joaquin River Grassland Basin Nitrate-N WY04-WY05
0
5
10
15
20
25
30
35
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Nitr
ate-
N (m
g/L)
Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain California Primary MCL (10mg/L)
R5-21
224
San Joaquin River Grassland Basin Total Kjeldahl Nitrogen WY01-WY05
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TKN
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-22
225
San Joaquin River Grassland BasinTotal Kjeldahl Nitrogen WY01-WY05
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
TKN
(mg/
L)
Median
R5-23
226
San Joaquin River Grassland Basin Ammonia-N WY01-WY05
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Am
mon
ia-N
(mg/
L)
Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-24
227
San Joaquin River Grassland BasinAmmonia-N WY04-WY05
San Joaquin River Grassland Basin Phosphorus WY01-WY05
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Phos
phor
us (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-26
229
San Joaquin River Grassland BasinPhosphorus WY01-WY05
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Phos
phor
us (m
g/L)
Median
R5-27
230
San Joaquin River Grassland Basin Orthophosphate-P WY01-WY05
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Ort
ho-P
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-28
231
San Joaquin River Grassland BasinOrthophosphate-P WY01-WY05
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Ort
hoph
osph
ate-
P (m
g/L)
Median
R5-29
232
San Joaquin River Grassland Basin Potassium WY01-WY04
0
2
4
6
8
10
12
14
16
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Sample Date
Pota
ssiu
m (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-30
233
San Joaquin River Grassland BasinPotassium WY01-WY04
0
2
4
6
8
10
12
14
16
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Pota
ssiu
m (m
g/L)
Median
R5-31
234
San Joaquin River Grassland Basin Biochemical Oxygen Demand 5-Day WY01-WY03
0
1
2
3
4
5
6
7
8
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Sample Date
BO
D 5
-Day
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-32
235
San Joaquin River Grassland BasinBiological Oxygen Demand 5-Day WY01-WY03
0
1
2
3
4
5
6
7
8
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
BO
D- 5
(mg/
L)
Median
R5-33
236
San Joaquin River Grassland Basin Biochemical Oxygen Demand 10-Day WY01-WY03
0
2
4
6
8
10
12
14
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Sample Date
BO
D 1
0-D
ay (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-34
237
San Joaquin River Grassland BasinBiological Oxygen Demand 10-Day WY01-WY03
0
2
4
6
8
10
12
14
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
BO
D- 1
0 (m
g/L)
Median
R5-35
238
San Joaquin River Grassland Basin Chloride WY01-WY03
0
100
200
300
400
500
600
700
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Chl
orid
e (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain California Secondary MCL (recommended level) (250 mg/L)
R5-36
239
San Joaquin River Grassland BasinChloride WY01-WY03
0
100
200
300
400
500
600
700
800
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Chl
orid
e (m
g/L)
Median
R5-37
240
San Joaquin River Grassland Basin Sulfate WY01-WY03
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Sulfa
te (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain California Secondary MCL (recommended level) (250 mg/L)
R5-38
241
San Joaquin River Grassland BasinSulfate WY01-WY03
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
San Joaquin River Grassland Basin Calcium WY01-WY03
0
50
100
150
200
250
300
350
400
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Sample Date
Cal
cium
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-40
243
San Joaquin River Grassland BasinCalcium WY01-WY03
0
50
100
150
200
250
300
350
400
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Cal
cium
(mg/
L)
Median
R5-41
244
San Joaquin River Grassland BasinMagnesium WY01-WY03
0
20
40
60
80
100
120
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Mag
nesi
um (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-42
245
San Joaquin River Grassland BasinMagnesium WY01-WY03
0
20
40
60
80
100
120
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Mag
nesi
um (m
g/L)
Median
R5-43
246
San Joaquin River Grassland Basin Total Dissolved Solids WY01-WY03
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
TDS
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain California Secondary MCL (recommended level) (500 mg/L)
R5-44
247
San Joaquin River Grassland BasinTotal Dissolved Solids WY01-WY03
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
San Joaquin River Grassland Basin Carbonate WY01-WY03
0
5
10
15
20
25
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Sample Date
Car
bona
te (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-46
249
San Joaquin River Grassland BasinCarbonate WY01-WY03
0
5
10
15
20
25
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Car
bona
te (m
g/L)
Median
R5-47
250
San Joaquin River Grassland Basin Bicarbonate WY01-WY03
50
100
150
200
250
300
350
400
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Bic
arbo
nate
(mg/
L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-48
251
San Joaquin River Grassland BasinBicarbonate WY01-WY03
0
50
100
150
200
250
300
350
400
450
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Bic
arbo
nate
(mg/
L)
Median
R5-49
252
San Joaquin River Grassland Basin Total Alkalinity WY01-WY03
50
100
150
200
250
300
350
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Tota
l Alk
alin
ity (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain
R5-50
253
San Joaquin River Grassland BasinTotal Alkalinity WY01-WY03
0
50
100
150
200
250
300
350
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Tota
l Alk
alin
ity (m
g/L)
Median
R5-51
254
San Joaquin River Grassland Basin Sodium WY01-WY03
0
100
200
300
400
500
600
700
800
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Sodi
um (m
g/L)
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @ San Luis Drain Discharge from SLD Mud Slough (n) (downstream) @ San Luis Drain Water Quality for Agriculture(Ayers & Westcot) (69 mg/L)
R5-52
255
San Joaquin River Grassland BasinSodium WY01-WY03
0
100
200
300
400
500
600
700
800
900
Salt Slough @Lander/Hwy 165 Mud Slough (n) (upstream) @SLD
Discharge from SLD Mud Slough (n) (downstream)@ SLD
Sodi
um (m
g/L)
MedianWater Quality for Agriculture (Ayers & Westcot) (69 mg/L)
R5-53
256
San Joaquin River West Side Basin Temperature WY01-WY05
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tem
pera
ture
(ºC
)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Bay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
R6-1
257
San Joaquin River Westside BasinTemperature WY01- WY05
0
5
10
15
20
25
30
35
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Tem
pera
ture
(ºC
)
Median
R6-2
258
San Joaquin River West Side Basin Specific Conductivity WY01-WY05
0
500
1000
1500
2000
2500
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
SC (μ
mho
s/cm
)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. H it l C k @Ri Rd
Solado Creek @ Hwy 33
38003900400041004200
Jan- 05 M
ar-
05
Sample Date
EC
(μm
hos/
cm)
R6-3
259
San Joaquin River Westside BasinSpecific Conductivity WY01- WY05
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Median
R6-4
260
San Joaquin River Northwest Basin pH WY01-WY05
6.0
6.5
7.0
7.5
8.0
8.5
9.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
pH
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Basin Plan Objective (6.5-8.5) Series2
R6-5
261
San Joaquin River Westside BasinpH WY01- WY05
6
6.5
7
7.5
8
8.5
9
9.5
10
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
pH
MedianBasin Plan Objective (6.5-8.5)
R6-6
262
San Joaquin River West Side Basin Dissolved Oxygen WY01-WY05
2
4
6
8
10
12
14
16
18
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
DO
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Basin Plan Objective (7.0 mg/L)
R6-7
263
San Joaquin River Westside BasinDissolved Oxygen WY01- WY05
0
2
4
6
8
10
12
14
16
18
20
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Dis
solv
ed O
xyge
n (m
g/L)
MedianBasin Plan Objective (7.0 mg/L)
R6-8
264
San Joaquin River West Side Basin Turbidity WY02-WY04
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Sample Date
Turb
idity
(ntu
)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-9
265
San Joaquin River Westside BasinTurbidity WY02- WY04
0
500
1000
1500
2000
2500
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Turb
idity
(ntu
)
Median
R6-10
266
San Joaquin River West Side Basin Total Suspended Solids WY01-WY05
0
1000
2000
3000
4000
5000
6000
7000
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TSS
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
Grayson Drain
27000
28000
29000
Jul-
05
Sep
-05
Sample Date
TSS
(mg/
L)
R6-11
267
San Joaquin River Westside BasinTotal Suspended Solids WY01- WY05
0
5000
10000
15000
20000
25000
30000
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Tota
l Sus
pend
ed S
olid
s (m
g/L)
Median
R6-12
268
San Joaquin River West Side Basin Total Organic Carbon WY01-WY05
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
TOC
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Bay-Delta Authority Target (3 mg/L)
R6-13
269
San Joaquin River Westside BasinTotal Organic Carbon WY01- WY05
0
5
10
15
20
25
30
35
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Tota
l Org
anic
Car
bon
(mg/
L)
MedianBay-Delta Authority Target (3 mg/L)
R6-14
270
San Joaquin River West Side Basin Total Coliform WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-15
271
San Joaquin River Westside BasinTotal Coliform WY02- WY05
0
500
1000
1500
2000
2500
3000
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Tota
l Col
iform
(MPN
/100
ml)
Median
R6-16
272
San Joaquin River West Side Basin Escherichia coli WY02-WY05
0
500
1000
1500
2000
2500
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Jan-
04
Apr
-04
Jul-0
4
Oct
-04
Jan-
05
Apr
-05
Jul-0
5
Sample Date
E. c
oli
(MPN
)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. USEPA Guideline - Designated beach area. (235 MPN/100 mL)
R6-17
273
San Joaquin River Westside BasinEscherichia coli WY02-WY05
San Joaquin River West Side Basin Summary Nitrate WY01-WY02
0
10
20
30
40
50
60
70
80
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Sample Date
Nitr
ate
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. California Primary MCL (45mg/L)
R6-19
275
San Joaquin River Westside BasinNitrate WY01-WY04
0
10
20
30
40
50
60
70
80
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Nitr
ate
(mg/
L)
MedianCalifornia Primary MCL (45mg/L)
R6-20
276
San Joaquin River West Side Basin Total Kjeldahl Nitrogen WY01-WY03
0
2
4
6
8
10
12
14
16
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
TKN
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-21
277
San Joaquin River Westside BasinTotal Kjeldahl Nitrogen WY01-WY05
0
2
4
6
8
10
12
14
16
18
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
TKN
(mg/
L)
Median
R6-22
278
San Joaquin River West SideBasin Phosporus WY01-WY03
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Phos
phor
us (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-23
279
San Joaquin River Westside BasinPhosphorus WY01-WY05
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Phos
phor
us (m
g/L)
Median
R6-24
280
San Joaquin River West Side Basin Orthophosphate-P WY01-WY03
0.0
1.0
2.0
3.0
4.0
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Ort
hoph
osph
ate-
P (m
g/L)
Orestimba Creek @ River Rd. Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard
R6-25
281
San Joaquin River Westside BasinOrthophosphate-P WY01-WY05
0
0.5
1
1.5
2
2.5
3
3.5
4
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Ort
hoph
osph
ate-
P (m
g/L)
Median
R6-26
282
San Joaquin River West Side Basin Potassium WY01-WY03
0
2
4
6
8
10
12
14
16
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Pota
ssiu
m (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-27
283
San Joaquin River Westside BasinPotassium WY01-WY04
0
2
4
6
8
10
12
14
16
18
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Pota
ssiu
m (m
g/L)
Median
R6-28
284
San Joaquin River West Side Basin Biochemical Oxygen Demand 5-day WY01-WY03
0
1
2
3
4
5
6
7
8
9
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
BO
D 5
-Day
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-29
285
San Joaquin River Westside BasinBiological Oxygen Demand 5-Day WY01-WY03
0
1
2
3
4
5
6
7
8
9
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
BO
D- 5
(mg/
L)
Median
R6-30
286
San Joaquin River West Side Basin Biochemical Oygen Demand 10-Day WY01-WY03
0
2
4
6
8
10
12
14
16
18
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
BO
D 1
0-D
ay (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-31
287
San Joaquin River Westside BasinBiological Oxygen Demand 10-Day WY01-WY03
0
2
4
6
8
10
12
14
16
18
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
BO
D- 1
0 (m
g/L)
Median
R6-32
288
San Joaquin River West Side Basin Chloride WY01-WY03
0
50
100
150
200
250
300
350
400
450
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Chl
orid
e (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. California Secondary MCL (recommended level) (250 mg/L)
R6-33
289
San Joaquin River Westside BasinChloride WY01-WY03
San Joaquin River West Side Basin Sulfate WY01-WY03
0
50
100
150
200
250
300
350
400
450
500
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Jul-0
3
Oct
-03
Sample Date
Sulfa
te (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. California Secondary MCL (recommended level) (250 mg/L)
San Joaquin River West Side Basin Calcium WY01-WY03
0
20
40
60
80
100
120
140
160
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Cal
cium
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-37
293
San Joaquin River Westside BasinCalcium WY01-WY03
0
20
40
60
80
100
120
140
160
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Cal
cium
(mg/
L)
Median
R6-38
294
San Joaquin River West Side Basin Magnesium WY01- WY03
10
20
30
40
50
60
70
80
90
100
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Jan-
03
Apr
-03
Sample Date
Mag
nesi
um (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-39
295
San Joaquin River Westside BasinMagnesium WY01-WY03
0
10
20
30
40
50
60
70
80
90
100
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Mag
nesi
um (m
g/L)
Median
R6-40
296
San Joaquin River West Side Basin Total Dissolved Solids WY01-W03
0
200
400
600
800
1000
1200
1400
1600
1800
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
TDS
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. California Secondary MCL (recommended level) (500 mg/L)
R6-41
297
San Joaquin River Westside BasinTotal Dissolved Solids WY01-WY03
San Joaquin River West Side Basin Carbonate WY01- WY03
0
5
10
15
20
25
30
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Car
bona
te (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-43
299
San Joaquin River Westside BasinCarbonate WY01-WY03
0
5
10
15
20
25
30
Orestimba Creek @River Rd.
Solado Creek @ Hwy33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Car
bona
te (m
g/L)
Median
R6-44
300
San Joaquin River West Side Basin Bicarbonate WY01- WY03
0
50
100
150
200
250
300
350
400
450
500
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Bic
arbo
nate
(mg/
L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-45
301
San Joaquin River Westside BasinBicarbonate WY01-WY03
0
50
100
150
200
250
300
350
400
450
500
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Bic
arbo
nate
(mg/
L)
Median
R6-46
302
San Joaquin River West Side Basin Total Alkalinity WY01-WY03
50
100
150
200
250
300
350
400
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Tota
l Alk
alin
ity (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd.
R6-47
303
San Joaquin River Westside BasinTotal Alkalinity WY01-WY03
0
50
100
150
200
250
300
350
400
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Tota
l Alk
alin
ity (m
g/L)
Median
R6-48
304
San Joaquin River West Side Basin Sodium WY01-WY03
0
50
100
150
200
250
Oct
-00
Jan-
01
Apr
-01
Jul-0
1
Oct
-01
Jan-
02
Apr
-02
Jul-0
2
Oct
-02
Sample Date
Sodi
um (m
g/L)
Orestimba Creek @ River Rd. Solado Creek @ Hwy 33 Del Puerto Creek @Vineyard Grayson Drain Ingram Creek @River Rd. Hospital Creek @River Rd. Water Quality for Agriculture(Ayers & Westcot) (69 mg/L)
R6-49
305
San Joaquin River Westside BasinSodium WY01-WY03
0
50
100
150
200
250
300
Orestimba Creek @River Rd.
Solado Creek @Hwy 33
Del Puerto Creek@Vineyard
Grayson Drain Ingram Creek@River Rd.
Hospital Creek@River Rd.
Sodi
um (m
g/L)
MedianWater Quality for Agriculture (Ayers & Westcot) (69 mg/L)
R6-50
306
San Joaquin River Delta Basin Temperature WY01-WY05
5
10
15
20
25
30O
ct-0
0
Jan-
01
Apr-0
1
Jul-0
1
Oct
-01
Jan-
02
Apr-0
2
Jul-0
2
Oct
-02
Jan-
03
Apr-0
3
Jul-0
3
Oct
-03
Jan-
04
Apr-0
4
Jul-0
4
Oct
-04
Jan-
05
Apr-0
5
Jul-0
5
Sample Date
Tem
pera
ture
(ºC
)
New Jerusalem DrainTom Payne Slough @Paradise Rd.Old River @Tracy Blvd Mountain House CreekBay-Delta Authority Target, SJR @ Vernalis (Apr 1-Jun 30 & Sept 1- Nov 30, 20ºC)
R7-1
307
San Joaquin River South Delta BasinTemperature WY01- WY05
5
10
15
20
25
30
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Tem
pera
ture
(ºC
)
Median
R7-2
308
San Joaquin River Delta BasinSpecific Conductivity WY01-WY05
0
500
1000
1500
2000
2500
3000
3500
Oct
-00
Jan-
01
Apr-
01
Jul-0
1
Oct
-01
Jan-
02
Apr-
02
Jul-0
2
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Jul-0
4
Oct
-04
Jan-
05
Apr-
05
Jul-0
5
Sample Date
SC (μ
mho
s/cm
)
New Jerusalem DrainTom Payne Slough @Paradise Rd.Old River @Tracy Blvd Mountain House CreekBasin Plan Objective (Apr 1-Aug 31, 700 μmhos/cm; Sep 1-Mar 31,1000 μmhos/cm)
R7-3
309
San Joaquin River South Delta BasinSpecific Conductivity WY01- WY05
0
500
1000
1500
2000
2500
3000
3500
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Spec
ific
Con
duct
ivity
(μm
hos/
cm)
Median
R7-4
310
San Joaquin River Delta BasinpH WY01-WY05
6.0
6.5
7.0
7.5
8.0
8.5
9.0
Oct
-00
Jan-
01
Apr-
01
Jul-0
1
Oct
-01
Jan-
02
Apr-
02
Jul-0
2
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Jul-0
4
Oct
-04
Jan-
05
Apr-
05
Jul-0
5
Sample Date
pH
New Jerusalem Drain Tom Payne Slough @Paradise Rd. Old River @Tracy Blvd Mountain House Creek Basin Plan Objective (6.5-8.5)
R7-5
311
San Joaquin River South Delta BasinpH WY01- WY05
6
6.5
7
7.5
8
8.5
9
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
pH
MedianBasin Plan Objective (6.5-8.5)
R7-6
312
San Joaquin River Delta Basin Dissolved Oxygen WY01-WY05
0
2
4
6
8
10
12
14
16
18
Apr-
01
Jul-0
1
Oct
-01
Jan-
02
Apr-
02
Jul-0
2
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Jul-0
4
Oct
-04
Jan-
05
Apr-
05
Jul-0
5
Sample Date
Dis
solv
ed O
xyge
n (m
g/L)
New Jerusalem Drain Tom Payne Slough @Paradise Rd. Old River @Tracy Blvd Mountain House Creek Basin Plan Objective (5 mg/L)
R7-7
313
San Joaquin River South Delta BasinDissolved Oxygen WY01- WY05
0
2
4
6
8
10
12
14
16
18
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Dis
solv
ed O
xyge
n (m
g/L)
MedianBasin Plan Objective (5 mg/L)
R7-8
314
San Joaquin River Delta Basin Turbidity WY02-WY04
0
50
100
150
200
250
300
Jul-0
2
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Sample Date
Turb
idity
(ntu
)
New Jerusalem Drain Tom Payne Slough @Paradise Rd. Old River @Tracy Blvd Mountain House Creek
R7-9
315
San Joaquin River South Delta BasinTurbidity WY02- WY04
0
50
100
150
200
250
300
350
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Turb
idity
(ntu
)
Median
R7-10
316
San Joaquin River Delta Basin Total Suspended Solids WY01
0
20
40
60
80
100
120
Oct
-00
Jan-
01
Apr-
01
Jul-0
1
Sample Date
TSS
(mg/
L)
New Jerusalem Drain Tom Payne Slough @Paradise Rd. Old River @Tracy Blvd Mountain House Creek
R7-11
317
San Joaquin River South Delta BasinTotal Suspended Solids WY01
0
20
40
60
80
100
120
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Tota
l Sus
pend
ed S
olid
s (m
g/L)
Median
R7-12
318
San Joaquin River Delta Basin Total Organic Carbon WY01-WY05
0
5
10
15
20
25
30
35
Oct
-00
Jan-
01
Apr-
01
Jul-0
1
Oct
-01
Jan-
02
Apr-
02
Jul-0
2
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Jul-0
4
Oct
-04
Jan-
05
Apr-
05
Jul-0
5
Sample Date
TOC
(mg/
L)
New Jerusalem Drain Tom Payne Slough @Paradise Rd. Old River @Tracy Blvd Mountain House Creek Bay-Delta Authority Target (3 mg/L)
R7-13
319
San Joaquin River South Delta BasinTotal Organic Carbon WY01- WY05
0
5
10
15
20
25
30
35
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Tota
l Org
anic
Car
bon
(mg/
L)
MedianBay-Delta Authority Target (3 mg/L)
R7-14
320
San Joaquin River Delta Basin Total Coliform WY02-WY05
0
500
1000
1500
2000
2500
3000
Jul-0
2
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Jul-0
4
Oct
-04
Jan-
05
Apr-
05
Jul-0
5
Sample Date
Tota
l Col
iform
(MPN
)
New Jerusalem Drain Tom Payne Slough @Paradise Rd. Old River @Tracy Blvd Mountain House Creek
R7-15
321
San Joaquin River South Delta BasinTotal Coliform WY02- WY05
0
500
1000
1500
2000
2500
3000
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.
Old River @Tracy Blvd Mountain House Creek
Tota
l Col
iform
(MPN
/100
ml)
Median
R7-16
322
San Joaquin River Delta BasinEscherichia coli WY02-WY05
0
200
400
600
800
1000
1200
1400Ju
l-02
Oct
-02
Jan-
03
Apr-
03
Jul-0
3
Oct
-03
Jan-
04
Apr-
04
Jul-0
4
Oct
-04
Jan-
05
Apr-
05
Jul-0
5
Sample Date
E. c
oli
(MPN
)
New Jerusalem DrainTom Payne Slough @Paradise Rd.Old River @Tracy Blvd Mountain House CreekUSEPA Guideline - Designated beach area. (235 MPN/100 mL)
R7-17
323
San Joaquin River South Delta BasinEscherichia coli WY02-WY05
0
200
400
600
800
1000
1200
1400
New Jerusalem Drain Tom Payne Slough @ ParadiseRd.