Front Cover: Reclaimed water use at Trilogy Golf Course, northern …€¦ · Arizona Canal. Nearly 48% of Peoria’s water was supplied from the Colorado River via the 336-mile long

Ver este informe en espanol, visita www.peoriaaz.com/utilities/o llamando 623-773-7286 por favor.

Peoria Utilities customers used 7.4 billion gallons ofwater in 2004 – an average of 188 gallons of waterper customer every day.

More than 80,000 water quality tests were performedon Peoria’s water in 2004.

There is the same amount of water on Earth todayas there was 3 billion years ago. The water we usetoday is the same water the dinosaurs used.

In 2004, Peoria recharged 620 million gallons ofreclaimed water.

Front Cover: Reclaimed water use at Trilogy Golf Course, northern Peoria.

The information and data contained in this report applies only to those who receive theirwater from the City of Peoria. There are several private water companies that serve residents in certain areas of the city. If you receive your water from Sunrise, New River,Rose Valley, or Arizona American water company, you should contact your water supplierdirectly for water data that affects you:

Sunrise Water Company: 623-972-6133New River Water Company: 623-561-1848Rose Valley Water Company: 800-850-4482

Arizona American: 800-383-0834

FA S T FA C T S

The City of Peoria Utilities Department isdedicated to providing safe, convenient, andaffordable water for your life. We havemade great strides in providing a high-quality, sustainable water supply to our citizens through comprehensive, long-range water resources planning and management. As always, we encourage awater-conserving lifestyle and commitmentto using water wisely.

While the primary purpose of theConsumer Confidence Report is to provideinformation about the quality of your drinking water supply, a large portion of this year’s water report is dedicated to the Utility’s newest strategy to provide a renewable water supply – the use ofreclaimed water. Please read on for moreinformation on how we provide you, ourvalued customer, with a high-quality, safe,and sustainable water supply.

Sincerely,

Stephen Bontrager, P.E., D.E.E.Utilities Department Director

Phone: (623)773-7286

E-mail: [email protected]

WATER SUPPLY SOURCESThe City of Peoria has invested in four distinct water supplies: Salt River Project(SRP), Central Arizona Project (CAP),groundwater, and reclaimed water.Therefore, when one water supply is experiencing below-normal water levels, the City has three other supplies it can relyupon to provide water to its customers.In 2004, SRP delivered approximately 31%of Peoria’s water supply from its reservoirson the Salt and Verde Rivers through theArizona Canal. Nearly 48% of Peoria’swater was supplied from the ColoradoRiver via the 336-mile long CAP canal,which starts in Lake Havasu (see map onpage 10). Approximately 21% of the City’swater supply came from groundwater. This groundwater use is offset by rechargeof renewable surface water supplies.

WATERREPORT 2005

2004 Water Supply

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Both surface water systems (Salt/Verde and Colorado River) have experienced significant drought conditions for the past five consecutive years. However, conditions have improved over the last sixmonths because the Southwest has receivedmore precipitation than normal. As aresult, short-term drought conditions, suchas low soil moisture, have been alleviated in many areas. Although the precipitationwas beneficial, we need to carefully evaluate its impact on long-term droughtconditions and Peoria’s water supply. While this winter’s rains and snow helped to fill SRP reservoirs and lakes, ColoradoRiver reservoirs such as Lake Mead andLake Powell are still only approximatelyhalf full.

With Peoria’s progressive leadership, theCity has planned for decades to meet thechallenge of providing customers with asafe, high-quality water supply, even duringtimes of drought. Reclaimed water hasbeen an underused resource that has onlybegun to play an integral role in Peoria’swater supply.

WATER – TOO VALUABLETO BE USED JUST ONCEArizona Governor Janet Napolitano promotes a “culture of conservation” for allcitizens of Arizona. Conservation helps usachieve our long-term goal of reducingwater use to protect our water suppliestoday and in the future. One way Peoria isencouraging a culture of conservation is byusing reclaimed water.

Reclaimed Water – Water reclamation,also known as water reuse or water recycling, is the collection and treatment ofwastewater from homes and businesses tobe utilized where potable (drinking-quality)water is not required. Reclaimed water can be used for landscape irrigation, decorative water features, and in variousindustrial processes.

The use of reclaimed water conserves drinking-quality water and may also delay costly expansion of water treatmentfacilities, which means lower water rates

Photo courtesy of City of Chandler, AZ

A park irrigated with reclaimed water in northern Peoria

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for City water customers. In addition,reclaimed water provides a readily availableand reliable source of water, even duringtimes of shortage, like a drought. Reclaimedwater supplies also will increase as population increases.

Treatment and Safety – Using state-of-the-art treatment and disinfection technologies, a water reclamation facilityremoves harmful substances from

wastewater. Monitoringand testing are routinelyperformed to ensure the quality of reclaimed water is compliant with all regulations.

As with drinking water, thequality of reclaimed water is regulated bythe Arizona Department of EnvironmentalQuality (ADEQ) and the Maricopa CountyEnvironmental Services Department.While reclaimed water is not intended fordrinking or swimming, it is completely safeto use for irrigation in parks and commonareas. The water is treated to the highestwater quality criteria established by ADEQso that contact or accidental ingestion poses no significant concern for humans or animals.

Reclaimed Water Use Throughout the Country – Many other municipalitiesin the country have extensive reclaimedwater systems; some even provide it to customers for residential landscape irrigation.In 2003, the City of Tucson delivered 3.7billion gallons of reclaimed water to about600 schools, golf courses, and parks, which

saved enough drinking water to supply more than 30,000 families for a year. Thereare also several communities in Florida,California, Washington, and NorthCarolina that have extensive water reuse programs.

Seeing Purple in Peoria – Reclaimedwater pipes are colored purple and are clearly labeled with the words “Reclaimedwater – do not drink.” The pipes are completely separate from the drinking watersystem. In the City of Peoria there are currently two water reclamation facilities(WRF) in operation – Beardsley WRF andJomax WRF. In 2004, these facilitiesreclaimed 630 million gallons of wastewaterfor the City of Peoria. If fully reused, thisamount has the potential to save enoughdrinking water for 3,500 families for a year.The water reuse system will be expandedwith the completion of the Butler DriveWRF by June 2009. See the map on page 10 for an overview of Peoria’s watersupply system, including water reclamationfacilities and water treatment plants.

WATERREPORT 2005

Jomax Water Reclamation Facility, northern Peoria

Reclaimed water can be used indirectly ordirectly. Currently, the City of Peoria indirectly uses reclaimed water by recharging it, which helps to replenish groundwater supplies and provide a “bankaccount” for long-term sustainability.Recharge basins, such as those atBeardsley WRF, allow highly treatedreclaimed water to infiltrate into subsurfacegeologic materials, where they are furthercleaned through natural processes. In2004, Peoria recharged 620 million gallonsof reclaimed water.

Vistancia is the first community built inPeoria to directly use reclaimed water to filldecorative lakes and to irrigate golf courses,parks, and schools. In fact, over 283,000 gallons of reclaimed water was used to irrigate the Trilogy at Vistancia Golf Coursein December 2004.

To help the City plan for the anticipatedincrease in use of reclaimed water, areclaimed water service ordinance wasadopted by City Council, and a WaterReuse Master Plan is being finalized.These documents will help dictate thedetails of how, when, and where reclaimedwater will be utilized in the City and for its citizens.

IMPROVED WATER SYSTEM SECURITYOver the last two years, the City of PeoriaUtilities Department has undertaken several projects to improve the water quality and security aspects of all its waterproduction facilities. In addition to theseupgrades, we encourage our customers toalways report suspicious activity at anywater facility by calling the police at 911.

One important addition to maintaining a safe and secure water supply is the installation of on-line chlorine residual disinfection monitors. Chlorine is used todisinfect and maintain a safe water supply.Chlorine monitors, installed at well sitesand water storage facilities, automaticallyadjust the amount of chlorine to insure the drinking water leaving the facility isproperly protected. This ensures qualitydrinking water for our customers.

Although the specifics of physical securityupgrades cannot be discussed, actions arebeing taken to further protect the drinking

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Reclaimed water feature at Vistancia, northern Peoria

Reclaimed water irrigation system components are clearly labeled and colored purple

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water system as part of the NationalStrategy for Homeland Protection.Maintaining drinking water quality is anextremely high priority for the City ofPeoria, and these projects help us to accomplish that objective.

TREATED, TESTED, SAFEThe City of Peoria Utilities Department iscommitted to providing a safe, healthy,assured water supply to the community at areasonable cost. City of Peoria drinkingwater is “treated, tested, and safe.” This is

WATERREPORT 2005

FROM THE ENVIRONMENTAL PROTECTION AGENCYIn order to ensure that tap water is safe to drink, the Environmental Protection Agency (EPA) prescribes regulationsthat limit the amount of certain contaminants in water provided by public water systems. The Food and DrugAdministration (FDA) regulations establish limits for contaminants in bottled water.

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs,springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurringminerals, and in some cases radioactive material, and can pick up substances resulting from the presence of animals orfrom human activity.

Contaminants that may be present in source water include the following:

1. Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, or wildlife;

2. Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming;

3. Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban storm water runoff,and residential uses;

4. Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, urban storm water runoff, andseptic systems; and

5. Radioactive contaminants, which can be naturally occurring or can be the result of oil and gas production and mining activities.

Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the EPA’s Safe Drinking Water Hotline: 800-426-4791. Information on bottled water can be obtained from the FDA.

Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers.EPA/CDC (Center for Disease Control) guidelines on appropriate means to lessen the risk of infection byCryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline: 800-426-4791.

a phrase commonly used, but what does itmean to you as a consumer?

Treated – Since the City’s drinking water originates fromboth groundwater and surfacewater, two different treatment methods are used. Water fromwells is chlorinated prior to delivery. Surface water

undergoes extensive treatment at either the Pyramid Peak or Greenway WaterTreatment Plants (see map on page 10) to meet drinking water standards. These facilities use conventional and chemicaltreatment including chlorine dioxide orozone to mitigate taste and odor and minimize disinfectant by-products.

Tested – Over 200 tests are performed byplant operators each day, and severalparameters are monitored continuouslyusing state-of-the-art equipment, which notifies staff members of any deviancesfrom acceptable conditions. Once the waterleaves the water supply well or water treatment plant, samples are taken withinthe distribution system to ensure drinkingwater standards are maintained. The Cityof Peoria analyzed nearly 11,500 samples at150 locations in 2004.

Safe – Water safety is the primary concernof the Utilities Department. Safety isachieved by coordinating technology and qualified staff members to monitor production systems, sample the distributionsystem, and evaluate opportunities to continually enhance the program whileminimizing cost to our customers.

Water is treated and tested at groundwaterwells and treatment plants and then monitored to ensure it remains safe on theway to your tap. Numerous chemical andbiological analyses are conducted daily. Awide variety of compounds are monitoredand tested for in your drinking water, inaccordance with federal and state laws andlocal water quality guidelines.

ARSENICArsenic is an element found naturally inrocks, water, plants, and animals. It is alsoused by industries as a wood preservativeand in the manufacturing process of paints, drugs, dyes, soaps, metals, and semi-conductors.

The current federal and state maximumcontaminant level (MCL) for arsenic in drinking water is 50 parts per billion(ppb). Effective January 2006, the EPA will lower the MCL from 50 ppbto 10 ppb. In 2003, the UtilitiesDepartment determined that 7 of the City’s 25 groundwater wells had arsenicconcentrations above the future MCL of 10 ppb. Various options to meet the new MCL by January 2006 are beinginvestigated.

ARSENIC MITIGATIONArsenic treatment technologies are rapidly changing. Compliance options forarsenic mitigation include blending, on-sitetreatment, and modification to current operations. Capital investment costs for on-site treatment may exceed one milliondollars per site. In an attempt to reducecostly investments, the Utilities Department

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is evaluating how the water system is operated. The goal is to apply effective technology while minimizing the impact on customers. This approach will allow the Utilities Department to make a well-informed decision aboutarsenic mitigation.

GET INVOLVEDThere are several ways you, as a City of Peoria citizen, can have a voice in the decisions made regarding the drinking watersystem. You can attend and participate inCity Council meetings, Citizen BondCommittee meetings, and the PeoriaLeadership Institute, a series of classes onCity of Peoria government. These forumsall provide ways for you to express your opinions and concerns regarding our drinking water system and allow you tolearn more about the decision-makingprocess. For more information regardingthese forums please visit www.peoriaaz.comor call 623-773-7000.

In addition, the Source Water AssessmentProgram (SWAP) report for the City ofPeoria is now available for review. Basedon a mandate set forth in the 1996 amendments to the Safe Drinking WaterAct, the Arizona Department ofEnvironmental Quality (ADEQ) evaluatedeach water source used by public water systems in Arizona. ADEQ looked at thequality of groundwater being drawn intowells, the watersheds supplying surfacewater, and land use activities occurring neardrinking water sources. This information isused to determine the degree to which a

public drinking water source is protectedfrom, or at risk of, contamination. It is also used to assist local communities inimplementing source water protection measures to preserve drinking water quality.

When preparing Peoria’s SWAP, ADEQevaluated 24 wells. One of these wells wasfound to have a high risk of contamination.Because of this, ADEQ lists the wholePeoria system as having a high risk of contamination. This does not mean contamination is imminent or even active,just possible. City of Peoria water qualitysampling has not shown any contaminationin any City wells. The full SWAP reportfor the City of Peoria can be reviewed atboth Peoria public libraries and the UtilitiesDepartment office. The well in questionwas not used in 2004.

WATER QUALITY DATAThe data presented on the following pagesprovide a detailed chemical analysis ofPeoria’s water supply for calendar year2004, during which Peoria supplied waterthrough two distribution systems. Datafrom the main Peoria water system and the Vistancia area system are reported separately for compliance purposes. City of Peoria water customers west of the Agua Fria River and north of the Loop303/Happy Valley Road alignment receivedwater from the Vistancia area system; allother City of Peoria water customersreceived water from the main Peoria system. The data tables are color-coded tomatch the water system area (see map onpage 10 for colors).

WATERREPORT 2005

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WATERREPORT 2005

Main Peoria Water System Water Quality DataRefer to notes on page 17 for explanation of units, definitions, and abbreviations.

Text in green is language required by the US Environmental Protection Agency.

Radiological

Radon is a radioactive gas that you cannot see, taste, or smell. It is found throughout the United States. Radon can move up through theground and into a home through cracks and holes in the foundation. Radon can build up to high levels in all types of homes. Radon canalso get into indoor air when released from tap water from showering, washing dishes, and other household activities. Compared toradon entering the home through soil, radon entering the home through tap water will in most cases be a small source of radon in indoorair. Radon is a known human carcinogen. Breathing air containing radon can lead to lung cancer. Drinking water containing radonmay also cause increased risk of stomach cancer. If you are concerned about radon in your home, test the air in your home. Testing isinexpensive and easy. For additional information, call your state radon program or call EPA’s Radon Hotline (800-SOS-RADON).

Gross Alpha pCi/L ND-3.0 1.82 0.1 - 3.0 1.8 0.6-2.3 1.45 15 0 2003-4 Erosion of natural deposits

Gross Beta mrem ND ND ND ND 3.5 3.5 4 0 2003-4 Erosion of natural deposits

Radium 226 pCi/L ND-0.3 0.15 ND ND NR NR NA NA 2003-4 Erosion of natural deposits

Radium 228 pCi/L ND ND ND ND NR NR NA NA 2003-4 Erosion of natural deposits

Combined pCi/L ND-0.9 0.45 NR NR NR NR 5 0 2003 Erosion of natural depositsRadium

Uranium µg/L ND-3.4 1.4 ND - 1.9 1.7 NR NR 30 0 2003-4 Erosion of natural deposits

Radon pCi/L ND-588 255 NR NR ND ND NA NA 2004 Erosion of natural deposits

Range Average Range Average Range Average

Copper and Lead

Samples were collected from 76 homes, primarily from homes built between 1980 and 1984.

Percentile reporting means the data is first organized from smallest to the largest. In the case of copper, there were 76 samples rangingfrom 0.01 to 0.33 mg/L. We then determine which sample to evaluate by taking 90% of 76, which is 68. We then pick the 68th data resultfrom the smallest as the reporting level. In this case, 0.33 mg/L. Ninety percent of the data is below 0.33 mg/L while the remaining tenpercent is above. For lead there were also 76 samples and the 90th percentile was ND, or no detection.

Greenway Pyramid Peak 90th Groundwater Surface Water Surface Water

Percentile Maximum Maxmimum Maximum EPA Action EPA Limit SampleAnalyte Units Reported Concentration Concentration Concentration Level mg/L MCLG Date Possible Sources

Copper mg/L 0.33 ND NR 0.8 1.3 1.3 2003-4 Erosion of natural deposits, Home plumbing systems.

Lead mg/L ND ND ND NR 0.015 0 2003-4 Erosion of natural deposits, Home plumbing systems.

Greenway Pyramind Peak EPA EPAGroundwater Surface Water Surface Water Limit Limit Sample

Analyte Units Concentrations Concentrations Concentrations MCL MCLG Date Possible Sources

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Inorganics

Tested for but not found in Peoria: Asbestos; Antimony; Beryllium; Cyanide; Mercury; Nitrite; Thallium

Nitrate: The City of Peoria has five wells with nitrate concentrations above 5.0 mg/L but less than the MCL of 10.0 mg/L. The wellsare located at 11940 N 75th Ave, 8301 N 103rd Ave, 14017 N 73rd Ave, 8451 W Bell Rd., and 8897 W Beardsley Rd. Nitrate in drinking water at levels above 10 mg/L is a health risk for infants of less than six months of age. High nitrate levels in drinking watercan cause blue baby syndrome. Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If youare caring for an infant, ask advice from your health care provider.

Arsenic Information: The City of Peoria obtained about 21% of its water from groundwater wells during 2004. Some of these wells contain arsenic above a new MCL of 10 µg/L that goes into effect in 2006. Peoria has evaluated its arsenic treatment options this yearand is developing a compliance strategy.

Due to the variation of the arsenic concentration, the City is providing the following statements as required by the US EnvironmentalProtection Agency (EPA):

Arsenic Educational Statement: While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic.EPA’s standard balances the current understanding of arsenic’s possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels of arsenic, which is a mineral known to cause cancer inhumans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.

Arsenic Health Effects Statement: Some people who drink water containing arsenic in excess of the MCL over many years could experience skin damage or problems with their circulatory system and may have an increased risk of getting cancer.

Arsenic mg/L 0.002-0.015 0.005 0.003-0.008 0.005 0.0015-0.0017 0.0016 0.05 0 2004 Erosion of natural deposits

Barium mg/L ND-0.09 0.029 0.11 0.11 0.135 0.135 2 2 2004 Erosion of natural deposits

Cadmium mg/L ND-0.0012 0.0002 ND ND ND ND 0.005 0.005 2003-04 Erosion of natural deposits

Chromium mg/L ND-0.038 0.015 0.0024 0.0024 ND ND 0.1 0.1 2001-04 Erosion of natural deposits

Fluoride mg/L 0.3-1.9 1.24 0.3-1.1 0.63 0.37 0.37 4 NA 2003-04 Erosion of natural deposits

Nitrate mg/L 7.0-8.2 7.3 0.2-1.5 0.88 <0.1 <0.1 10 10 2003-04 Fertilizer runoff, erosion of natural deposits

Selenium mg/L ND-0.012 0.005 ND ND ND ND 0.05 0.05 2004 Erosion of natural deposits




* A single analysis above the MCL is not a violation. Compliance is determined on a running annual average.

Disinfection Byproducts

Bromate µg/L NR NR ND-11* 0 NR NR 10 0 2004 By-product of drinking water ozonation

Chlorite mg/L ND-0.013 0.01 NR NR ND ND 1 0.8 2004 By-product of chlorine dioxide for oxidation

Total Organic mg/L NR NR 1-2.6 1.8 2.09-3.15 2.46 TT NA 2002-04 Naturally present inCarbon the environment

Total µg/L ND-103* 48 1-57 39 20-74 33.7 80 NA 2003-04 By-product of drinking Trihalomethanes water chlorination

Total Haloacetic µg/L ND-27 13 1-6 4 6-24 10.1 60 NA 2003-04 By-product of drinking Acids water chlorination




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WATERREPORT 2005

Organics

Dibromochloropropane mg/L one detect 0.00002 ND ND ND ND 0.0002 0 2001 Runoff/leaching from soil fumigant(DBCP) used on soybeans, cotton,

pineapples, and orchards.

Di (2-Ethylhexyl) mg/L <0.0006 - 0.0012 ND ND ND ND 0.006 0 2004 Discharge from rubber phthalate 0.038* and chemical factories.

Dieldrin mg/L one detect 0.00002 ND ND ND ND NA NA 2001 Residue of banned insecticide.

Dalapon mg/L <0.001 - 0.001 ND ND ND ND 0.2 0.2 2004 Runoff from herbicides 0.0016 used on rights of way.

Dinoseb mg/L <0.0002 - 0.0002 ND ND ND ND 0.007 0.007 2004 Runoff from herbicides used 0.0003 on soybeans and vegetables.

Ethylbenzene mg/L <0.0005 - 0.0005 ND ND ND ND 0.7 0.7 2004 Discharge from0.0014 petroleum refineries.

Total Xylenes mg/L <0.0005 - 0.0015 ND ND ND ND 10 10 2004 Discharge from petroleum 0.0051 and chemical factories.

Range RangeAverage Average Range Average



Some people who drink water containing DBCP in excess of the MCL over many years couldexperience reproductive problems and may have an increased risk of getting cancer.

Some people who drink water containing di (2-ethylhexyl) phthalate in excess of the MCLover many years may have problems with their liver, or experience reproductive difficulties,and may have an increased risk of getting cancer.

No health effects determined at this time.

Some people who drink water containing Dalapon well in excess of the MCL over many yearscould experience minor kidney changes.

Some people who drink water containing Dinoseb well in excess of the MCL over many yearscould experience reproductive difficulties.

Some people who drink water containing ethylbenzene well in excess of the MCL over manyyears could experience problems with their liver or kidneys.

Some people who drink water containing xylenes in excess of the MCL over many yearscould experience damage to their nervous system.

Dibromochloropropane (DBCP)

Di (2-Ethylhexyl) phthalate

Dieldrin

Dalapon

Dinoseb

Ethylbenzene

Total Xylene*

*One sample above MCL is not a violation. Compliance is determined on the annual average of quarterly samples for the sample site.

Tested for but not found in Peoria: Synthetic Organic Chemicals: 2,4-D; 2,4,5-TP (Silvex); Alachlor; Atrazine; Carbofuran; Chloridane;Diquat; Ethylene Dibromochloropropane (DBCP); Ethylene Dibromide (EDB); Heptachlor; Heptachlor Epoxide; Lindane; Benzo (a)Pyrene; Di(2-ethylexyl)phthalate; Di (2-ethylhexyl) adipate; 2, 3, 7, 8 TCDD Dioxin; Endothall; Endrin; Glyphosate;Hexachlorobenzene; Hexachlorocycopentadiene; Oxamyl; Pocloram; Simazine; Methoxychlor; PCB: Polychlorinated Biphonels.

Tested for but not found in Peoria: Volatile Organic Chemicals: 1,1-Dichloroethylene; 1,1,1-Trichloroehtane; 1,1,2-Trichloroethane; 1,2-Dichloroethane;1,2-Dichloropropane; Benzene; Carbon Tetrachloride; cis-1,2-Dichloroethylene; (mono)chlorobenzene; o-Dichlorobenzene; para-Dichlorobenzene; Styrene; Tetrachloroethylene; Toluene; trans-1,2-Dichloroethylene; Trichloroethylene; Vinyl Chloride; 1,2.4-Trichlorobenzene; Dichloromethane.

Missed Monitoring in 2004:The City of Peoria is required to monitor your drinking water for specific contaminants on a regular basis. Results of regular monitoringare an indicator of whether or not your drinking water meets health standards. During the second quarter of 2004, the City of Peoriadid not complete all monitoring for Volatile Organic Compounds (VOCs) at two wells and at one well for the second and third quarter of 2004. Therefore, we cannot be sure of the quality of your drinking water during that time. Monitoring results from these three wells in the first quarter and third quarter 2004 did not report any detection for VOCs. The City of Peoria has an external audit procedure in place to prevent this from happening again. For more information please contact Dave Van Fleet at 623-773-7730,[email protected], or the EPA Safe Drinking Water Hotline: 1-800-426-4791.

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Pyramid Peak tested for but did not find cryptosporidium.

Other Analysis

Total Coliforms C/100 mL 0-0.5% NR NR 0 0.00% 0.003% 0 <5.0% 0 2004 NA Naturally present

Chlorine mg/L 0.05-2.4 NR NR 0.82- 1.22 0.74- 1.23 4 NA 2004 4 Water additive used Residual 1.98 1.66 to control microbes

Perchlorate µg/L NA ND ND NA NA 0-6.04 1.34 NA NA 2001/2 NA Rocket propellent


Water Greenway Pyramind Peak EPA EPASystem Groundwater Surface Water Surface Water Limit EPA Sample Limit

Analyte Units Concentrations Concentrations Concentrations Concentrations MCL MCLG Date MCLG Possible Sources

Aesthetics

Alkalinity mg/L 108-176 136 115-186 136 111-149 120 NA NA 2004 Naturally present

Calcium mg/L 14-71 46 57* 57* NA NA NA NA 2004 Erosion of natural deposits

Geosmin µg/L NA NA ND ND ND-0.0032 0.0021 NA NA 2004 Naturally present

Hardness Gr/gal 2.0-11 6.7 12* 12* NA NA NA NA 2004 Naturally present

Iron mg/L 0.12* 0.12* NA NA ND-0.023 0.020 NA 0.3 2001-04 Erosion of natural deposits

Magnesium mg/L 18* 18* 21* 21* NA NA NA NA 2003-4 Erosion of natural deposits

Manganese mg/L ND ND NA NA NA NA NA 0.05 2004 Naturally present

Methylisoborneol µg/L NA NA ND ND ND-0.0426 0.0063 NA NA 2004 Naturally present(MIB)

pH SU 7.2-8.5 8.0 7.5-8.7 7.9 7.6 7.6 NA NA 2004 NA

Total Dissolved mg/L 255-651 329.0 611* 611* 590-690 657 NA NA 2002-4 Naturally presentSolids

Sulfate mg/L 33-44 38.5 180* 180* 243* 243* NA 250 2002-4 Naturally present

Sodium mg/L 29-154 66 170* 170* NA NA NA NA 2004 Naturally present




* One sample collected, as required.

TurbiditySurface Water

Treatment Plant Analyte Units Level Found Range MCL MCLG Possible Sources

0.41 NA TT=1 NTU 0 Soil Runoff

97.5% NA TT= % of samples 0 Soil Runoff<0.3 NTU

0.25 NA TT=1 NTU 0 Soil Runoff

100% NA TT= % of samples 0 Soil Runoff<0.3 NTU

Greenway Turbidity NTU

Pyramid Peak Turbidity NTU

Turbidity has no health effects. However, turbidity can interfere with disinfection and provide a medium for microbial growth. Turbiditymay indicate the presence of disease-causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea, and associated headaches.

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WATERREPORT 2005

Vistancia Area Water System Water Quality DataRefer to notes on page 17 for explanation of units, definitions, and abbreviations.

Text in green is language required by the US Environmental Protection Agency.

This sampling program began in May 2005.

Copper and Lead

Other Radiochemistry samples will be collected in 2005.

Radon is a radioactive gas that you cannot see, taste, or smell. It is found throughout the United States. Radon can move up through theground and into a home through cracks and holes in the foundation. Radon can build up to high levels in all types of homes. Radon canalso get into indoor air when released from tap water from showering, washing dishes, and other household activities. Compared toradon entering the home through soil, radon entering the home through tap water will in most cases be a small source of radon in indoorair. Radon is a known human carcinogen. Breathing air containing radon can lead to lung cancer. Drinking water containing radonmay also cause increased risk of stomach cancer. If you are concerned about radon in your home, test the air in your home. Testing isinexpensive and easy. For additional information, call your state radon program or call EPA’s Radon Hotline (800-SOS-RADON).

Radiological

Radon pCi/L 200-471 326.0 4,000 300 2003-4 Erosion of natural deposits

Range Average

Groundwater EPA Limit EPA LimitAnalyte Units Concentrates MCL MCLG Sample Date Possible Sources

This sampling program begins in August 2005.

Disinfection Byproducts

Tested for but not found: Asbestos; Antimony; Beryllium; Cadmium; Chromium; Cyanide; Mercury; Nitrite; Selenium; Thallium


Arsenic Information: The City of Peoria water system 07-520 (Vistancia) obtained 100% of its water from groundwater wells during2004. Some of these wells contain arsenic near the new MCL of 10 µg/L that goes into effect in 2006. Peoria has evaluated its arsenictreatment options this year and is developing a compliance strategy.

Due to the variation of the arsenic concentration, the City is providing the following statement as required by the US EnvironmentalProtection Agency (EPA):

Arsenic Educational Statement: While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic.EPA’s standard balances the current understanding of arsenic’s possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels of arsenic which is a mineral known to cause cancer inhumans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.

Inorganics

Arsenic mg/L 0.005* 0.005* 0.05 0 2004 Erosion of natural deposits

Barium mg/L 0.03* 0.03* 2 2 2004 Erosion of natural deposits

Fluoride mg/L 0.3* 0.3* 4 NA 2004 Erosion of natural deposits

Nitrate mg/L 1.5* 1.5* 10 10 2004 Fertilizer runoff, erosion of natural deposits

Range Average


16

Tested for but not found: Synthetic Organic Chemicals: 2,4-D; 2,4,5-TP (Silvex); Alachlor; Atrazine; Carbofuran; Chloridane; Dalapon;Diquat; Ethylene Dibromochloropropane (DBCP); Ethylene Dibromide (EDB); Heptachlor; Heptachlor Epoxide; Lindane; Benzo (a)Pyrene; Di(2-ethylexyl)phthalate; Di (2-ethylhexyl) adipate; Dinoseb; 2, 3, 7, 8 TCDD Dioxin; Endothall; Endrin; Glyphosate;Hexachlorobenzene; Hexachlorocycopentadiene; Oxamyl; Picloram; Simazine; Methoxychlor; PCB: Polychlorinated Biphonels;Pentqchlorophenol; Toxaphene.

Tested for but not found: Volatile Organic Chemicals: 1,1-Dichloroethylene; 1,1,1-Trichloroehtane; 1,1,2-Trichloroethane; 1,2-Dichloroethane;1,2-Dichloropropane; Benzene; Carbon Tetrachloride; cis-1,2-Dichloroethylene; (mono)chlorobenzene; o-Dichlorobenzene; para-Dichlorobenzene; Styrene; Tetrachloroethylene; Toluene; trans-1,2-Dichloroethylene; Trichloroethylene; Vinyl Chloride; 1,2.4-Trichlorobenzene; Dichloromethane.

Organics

Ethylbenzene mg/L <0.0005 - 0.0006 0.7 0.7 2004 Discharge from petroleum0.007 refineries.

Total Xylenes mg/L <0.0005 - 0.0025 10 10 2004 Discharge from petroleum 0.0038 and chemical factories.

Ethylbenzene Some people who drink water containing ethylbenzene well in excess of the MCL over many years could experience problems with their liver or kidneys.

Total Xylene* Some people who drink water containing xylenes in excess of the MCL over many years could experience damageto their nervous system.

Range Average



Aesthetics

Calcium mg/L 50* 50* NA NA 2004 Erosion of natural deposits

Hardness Gr/gal 12.3* 12.3* NA NA 2004 Naturally present

Magnesium mg/L 21* 21* NA NA 2004 Erosion of natural deposits

Manganese mg/L ND ND NA 0.05 2004 Naturally present

Sodium mg/L 46* 46* NA NA 2004 Naturally present

Range Average


17

WATERREPORT 2005

<: less than

Action level: The concentration of a contaminant that, if exceeded, triggers treatment or other requirements that a community water system shall follow

C/100mL: colonies per 100 milliliters

Gr/gal: Grains Per Gallon: measure of water hardness

EPA: United States Environmental Protection Agency

MCL: Maximum Contaminant Level: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.

MCLG: Maximum Contaminant Level Goal: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

µg/L: micrograms per liter: a unit of measurement equal to ppb

mg/L: milligrams per liter: a unit of measurement equal to ppm

MRDL: Maximum Residual Disinfectant Level goal: The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDL goals do not reflect the benefits of the use of disinfectants to control microbial contaminants.

NA: not applicable

ND: none detected

NR: not required

NTU: Nephelometric Turbidity Unit: measure of how light is scattered by particulate matter in water

pCi/L: pico-Curies per Liter: a measure of radioactivity

ppb: parts per billion: a unit of measurement equal to micrograms per liter (µg/L). 1 ppb (or 1 µg/L) is comparable to one penny in $10,000,000.

ppm: parts per million: a unit of measurement equal to milligrams per liter (mg/L). 1 ppm (or 1 mg/L) is comparable to one penny in $10,000.

TT: Treatment Technique: a required process intended to reduce the level of a contaminant in drinkingwater

DEFINITIONS AND ABBREVIATIONS

Other Analysis

Total Coliforms C/100 mL 0% NR NR <5.0% 0 2004 NA Naturally present

Chlorine Residual mg/L 0.41 - 1.4 NR NR 4 NA 2004 4 Water additive used to control microbes

Range Average

EPA EPA EPAWater System Groundwater Limit Limit Sample Limit

Analyte Units Concentrations Concentrates MCL MCLG Date MRDL Possible Sources

18

WATER CONSERVATION –ANOTHER SUPPLY

Effective water conservation measuresare encouraged by the City to helpensure that sufficient waterresources are available today andfor future generations. Water

conservation may actually be considered another supply of water.The water we choose to save today becomes water our children

and grandchildren can use tomorrow.

The citizens of Peoria havealready made progress in reducing theirwater use. The City measures this by calculating how the average water use perperson changes over time. In the last tenyears, the average daily water use perPeoria water customer has decreased fromapproximately 200 gallons per day to 188gallons per day in 2004.

Water conservation is easy, and it doesn’trequire major changes in the way you liveyour life. The City of Peoria’s Water Conservation Division offers assistance, incentives, and a variety of resources tohelp you make the small, everyday changesthat will add up to large water savings.

FREE WATER CONSERVATION CLASSESAND LITERATUREThe City of Peoria Utilities Departmentoffers free classes on indoor and landscapewater conservation, which meet in theevenings at the City Hall Complex.

Free information booklets and brochuresare also available for citizens interested inlearning more about water resources, lowwater use landscaping, and indoor water conservation. If you would like to registerto attend a class or request a literaturepacket, visit www.conserve.peoriaaz.com or call (623)773-7286.

REBATES FOR CONSERVATIONThe City of Peoria offers three rebates (up to $680 total) to encourage a permanentreduction in water use inside and outsidethe home. Utilities customers may be eligible for a rebate for installing a hot waterrecirculator in their home, converting theirhigh water use landscape to colorful, lowwater use Xeriscape, and installing a timer on their irrigation system. Moreinformation regarding these rebates can befound at www.conserve.peoriaaz.com or bycalling (623)773-7286. Once your utilitiesaccount information is verified, an officialapplication will be sent to you by mail.

HOW DO I LEARN MORE?The following websites provide more information about drinking water

quality standards in Arizona and the United States:

United States Environmental Protection Agency:www.epa.gov/OGWDE

Arizona Department of Environmental Quality:www.adeq.state.az.us/environ/water/dw/index.html

Maricopa County Environmental Services:www.maricopa.gov/envsvc/water/drinking.asp

To review any of the information presented in this report,contact the City of Peoria Utilities Department:

[email protected]

Water – Too Precious To WasteThe City of Peoria 2005 Water Report is produced by the

City of Peoria Utilities Department

Water Resource & Conservation DivisionStephen L. Bontrager, P.E., D.E.E. Director

Visit us online: www.peoriaaz.com/utilities

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Front Cover: Reclaimed water use at Trilogy Golf Course, northern …€¦ · Arizona Canal. Nearly 48% of Peoria’s water was supplied from the Colorado River via the 336-mile long

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