Wood Environment & Infrastructure Solutions, Inc. 1281 East Alluvial Avenue, Suite 101 Fresno, CA 93720-2659 USA T: 559-264-2535 www.woodplc.com ‘Wood’ is a trading name for John Wood Group PLC and its subsidiaries July 31, 2018 Project FR1216043A Mr. Joseph D. Hughes Klein, DeNatale, Goldner, LLC 4550 California Avenue, Second Floor Bakersfield, California 93309 Subject: Addendum No. 1 – Revised Groundwater Quality Trend Monitoring Work Plan Westside Water Quality Coalition Western Tulare Lake Basin, California Dear Mr. Hughes: Wood Environment & Infrastructure Solutions, Inc. (Wood), has prepared this Addendum No. 1 -Revised Groundwater Quality Trend Monitoring Work Plan on behalf of Klein, DeNatale, Goldner, LLP, and your client, the Westside Water Quality Coalition (Coalition). The Coalition is acting as a Third-Party Coalition pursuant to Waste Discharge Requirements General Order R5-2013-0120 (General Order) issued by the California Regional Water Quality Control Board (RWQCB) in September 2013. The Coalition entered into a Memorandum of Understanding with the Central Valley Groundwater Monitoring Collaborative on October 31, 2017, and is currently a participating member. Introduction: This addendum is in response to the RWQCB letter dated June 29, 2018, Review of the Westside Water Quality Coalition Revised Groundwater Quality Trend Monitoring Work Plan. The letter requested that the Coalition include the following information: 1. A rational for the sufficiency of the number of proposed wells to provide adequate coverage in the Coalition’s Area; 2. A list of the proposed trend monitoring wells that you have permission to sample, and that have been field verified; 3. Well construction details (e.g., depth, screen interval, well seal information, etc.) for all trend monitoring wells; 4. An additional trend monitoring well to replace Starrh 9K No.2 well; and 5. Trend monitoring well(s) to monitor groundwater in T28S R21E, MDB&M
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Revised Groundwater Quality Trend Monitoring Work Plan
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Wood Environment & Infrastructure Solutions, Inc.
1281 East Alluvial Avenue, Suite 101
Fresno, CA 93720-2659
USA
T: 559-264-2535
www.woodplc.com
‘Wood’ is a trading name for John Wood Group PLC and its subsidiaries
July 31, 2018
Project FR1216043A
Mr. Joseph D. Hughes
Klein, DeNatale, Goldner, LLC
4550 California Avenue, Second Floor
Bakersfield, California 93309
Subject: Addendum No. 1 – Revised Groundwater Quality Trend Monitoring Work Plan
Westside Water Quality Coalition
Western Tulare Lake Basin, California
Dear Mr. Hughes:
Wood Environment & Infrastructure Solutions, Inc. (Wood), has prepared this Addendum No. 1 -Revised
Groundwater Quality Trend Monitoring Work Plan on behalf of Klein, DeNatale, Goldner, LLP, and your
client, the Westside Water Quality Coalition (Coalition). The Coalition is acting as a Third-Party Coalition
pursuant to Waste Discharge Requirements General Order R5-2013-0120 (General Order) issued by the
California Regional Water Quality Control Board (RWQCB) in September 2013. The Coalition entered into
a Memorandum of Understanding with the Central Valley Groundwater Monitoring Collaborative on
October 31, 2017, and is currently a participating member.
Introduction:
This addendum is in response to the RWQCB letter dated June 29, 2018, Review of the Westside Water
Quality Coalition Revised Groundwater Quality Trend Monitoring Work Plan. The letter requested that the
Coalition include the following information:
1. A rational for the sufficiency of the number of proposed wells to provide adequate coverage in
the Coalition’s Area;
2. A list of the proposed trend monitoring wells that you have permission to sample, and that have
been field verified;
3. Well construction details (e.g., depth, screen interval, well seal information, etc.) for all trend
monitoring wells;
4. An additional trend monitoring well to replace Starrh 9K No.2 well; and
5. Trend monitoring well(s) to monitor groundwater in T28S R21E, MDB&M
Mr. Joseph D. Hughes
Klein, DeNatale, Goldner, LLC
July 31, 2018
Page 2
Revised Groundwater Quality Trend Monitoring Program
The Revised Groundwater Quality Trend Monitoring Program (GWQTMP) work plan originally designated
20 wells for the GWQTMP network (13 unconfined and 7 perched zone wells). The Coalition has
subsequently revised their GWQTMP well network based on the comments provided by the RWQCB and
due to the result of the Coalitions field vetting process of the original 20 proposed wells previously
selected for groundwater monitoring.
Coalition personnel conducted field verification for wells and contacted well owner/operators to inquire
about well construction information and to secure site access and permission to sample individual wells.
Wood also obtained well construction records from the California Department of Water Resources (DWR)
Well Completion Report Map Application (https://dwr.maps.arcgis.com/apps/webappviewer/
index.html?id=181078580a214c0986e2da28f8623b37) for each Township, Range, and Section located
within the Coalition boundary. The vetting process found that nine of the originally proposed unconfined
groundwater wells could not be field located, were former test wells that had been subsequently
destroyed, or consisted of wells with little or no well construction information or no associated DWR
record. These wells are shown on Figure 1 in red symbology.
Ten alternative wells were identified as suitable replacements based on well construction and/or proximity
to irrigated agricultural lands. Two of these wells are currently being installed by the United States
Geologic Survey (USGS); the USGS Lost Hills Well and USGS BWSD Well#5. Complete well construction
information for these wells is not currently available, but will be transmitted to the RWQCB when the wells
are completed. USGS has indicated to the Coalition that the wells will be available for groundwater
sampling during the fall 2018 GWQTMP monitoring event. The Coalition intends to sample the within the
cluster completed in first encountered groundwater.
The revised GWQTMP well network now consists of 21 monitoring wells. Thirteen of these wells are
screened in unconfined groundwater wells (Figure 1, in green symbology) and 8 wells are screened in
perched groundwater (Figure 1, in orange symbology). Table 1 contains available well construction
information provided by the well owner or contained in DWR records. Well construction records are
provided in Attachment A.
Two GWQTMP wells, Berrenda Mesa #1 and Berrenda Mesa #3 do not have available well construction
documentation from DWR records. The owner of Berrenda Mesa #1 has provided the Coalition with verbal
information regarding the wells perforated interval (Table 1) and the Coalition is performing research to
attempt to locate well construction information for Berrenda Mesa #3 well.
The RWQCB requested that a replacement to Starrh 9K No. 2 well be added to the GWQTMP network.
There is no adequate replacement well for Star2K No. 2 on irrigated land south of the location of Aera
Energy LLC (Aera), Belridge well 5B2 in T29SR22E Sections 07, 08, 09, or 18. All wells in these sections have
screened intervals located either across or below the E-Clay aquitard. There are shallow wells at the Clean
Harbors facility in Section 16; however, these wells are not downgradient of any irrigated agriculture.
There are also shallow wells that monitor the Cymric produced water impoundments, but they are also
not located downgradient of irrigated lands. We are proposing to use only Aera Belridge well 5B2 to
monitor irrigated lands in T29SR22E; this well is located directly downgradient of irrigated lands.
AeraBelridge_5B2 029S022E05B002M DWR Well Record Monitoring 35.441081 -119.630269 336.5 336.1 110 80-100 2 Bentonite (0-20) 10/03/1986 WWQC Verbal
Unconfined/Semi-Confined Aquifer
Westside Water Quality CoalitionWestern Tulare Lake Basin, California
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Table 1Summary of Well Construction - Groundwater Quality Trend Monitoring Network
Trend Monitoring Well ID State Well Number Source Information Well Type Latitude Longitude
Top of Casing
Elevation (feet)
Ground Surface
Elevation (feet)
Well Depth (feet bgs)1
Screen Interval
(feet bgs)1
Casing Size (inches)
Well Seal (type and footage
bgs)Install Date
Field Verified
Permission To Sample
DWR T25S/R20E-15A 025S020E15A001M DWR Well Record Piezometer 35.757146 -119.799327 TBD 262 14 4-14 2 #3 Sand (0-8) 06/01/1989 WWQC Yes
DWR T25S/R21E-31R1_10 025S021E31R001M DWR Well Record Monitoring 35.70518 -119.745008 TBD 237 19 9-19 2 Bentonite (0-10) 11/06/1998 WWQC Yes
DWR T26S/R21E-16R1 026S021E16R001M DWR Well Record Piezometer 35.659687 -119.71014 TBD 292 22 12-22 2 #3 Sand (0-14) 06/01/1989 WWQC Yes
DWR T27S/R21E-11A_BEL #2 027S021E11A001M DWR Well Record Piezometer 35.60153 -119.67556 TBD 277 20 10-20 2Not Specified
(0-10)08/01/1990 WWQC Yes
DWR T27S/R22E-18B1_BEL #3A 027S022E18B001M DWR Well Record Piezometer 35.586965 -119.64486 TBD 252 20 10-20 2Not Specified
(0-10)08/01/1990 WWQC Yes
DWR T27S/R22E-19P1_BEL #6A 027S022E19P001M DWR Well Record Piezometer 35.560633 -119.647388 TBD 277 20 10-20 2Not Specified
(0-10)08/01/1990 WWQC Yes
DWR T28S/R22E-05F 028S022E05F001M DWR Well Record Piezometer 35.523388 -119.631671 TBD 253 20 10-20 2Not Specified
(0-10)08/01/1990 WWQC Yes
DWR Bel 1S 028S022E08G001M DWR Well Record Piezometer 35.506436 -119.62746 TBD 249 20 10-20 2Not Specified
(0-11)08/01/1990 WWQC Yes
Notes:1. bgs = below ground surface.2. TBD = To be determined by field survey.3. -- = information not available.4. USGS As-built well constructions are pending. The shallow screened well within this cluster will be monitored.
Perched Aquifer
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