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Detailed Water Quality Report 2013 Reporting May 2012 Thru April 2013 Central Lake County Join Action Water Agency

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Detailed Water Quality Report 2013 Reporting May 2012 Thru April 2013 Central Lake County Join Action Water Agency Detailed Water Quality Report 2013 Reporting May 2012 thru April 2013 Central Lake County Join Action Water Agency this issue Testing at CLCJAWA P.1 Table of Compounds Detected P.2 Regulated Compounds P.3 Unregulated Compounds P.4 Commitment to Quality P.5 NEW TESTING ON THE HORIZON The Environmental Protection Agency (EPA) is continually researching and studying possible contaminants that may be found in our Nation’s water sources and their effects on our health. The Unregulated Contaminant Monitor- ing Rule (UCMR) program was Taking Water To A Higher Standard developed in coordination with the Contaminant Candidate List (CCL). The CCL is a list of contaminants The Central Lake County Joint Action Water Agency (CLCJAWA) is required under that are not regulated by the state and federal law to monitor water quality. While we carefully do so, we go above and National Primary Drinking Water beyond by voluntarily monitoring for hundreds more compounds. This is done with automatic Regulations; are known or instrumentation every 10 seconds, manually by our certified lab analysts and independently by anticipated to occur at public water certified testing laboratories. systems; and may warrant regulation under the Safe Drinking Because we more frequently test for many more compounds, and because we use Water Act. Data collected through more sensitive test methods in many cases, we detect more compounds than others might UCMR support analysis and review report. These compounds are expected to be found in most drinking water originating from the of contaminant occurrence, guide Great Lakes. Public water supplies are required to issue a water quality report, termed the the CCL selection process, and Consumer Confidence Report or CCR, each year. The CCR is composed of mandated language support the determination of and lists only regulated contaminants in contrast with this “Detailed Water Quality Report” that whether to regulate a contaminant in the interest of protecting public lists both regulated and unregulated compounds that we detect. It should be noted that bottled health. Thirty possible contami- water companies are not required to issue water quality reports. nants are now being tested in The drinking water at CLCJAWA meets all drinking water standards. The compounds water systems throughout the detected in our drinking water do not exceed drinking water standards. We have set more United States but here at CLCJAWA stringent goals to assure a consistent water quality that is better than mandated drinking water we have been testing for over 20 of these contaminants for the last 10 standards. You may independently verify our performance by visiting the Illinois Environmental years prior. We will continue to Protection Agency (IEPA) “Drinking Water Watch” website at http://www.epa.state.il.us/water/ test rigorously all possible UCMR drinking-water-watch/. contaminants to ensure the safest water possible Compounds Detected At CLCJAWA All Drinking Water Regulations were Met this Year for Testing Completed from May 2012 thru April 2013 Untreated Treated Drinking Water WHAT ARE Unit of Lake Compound Date Tested MCL Drinking In Pipe To Measure Michigan Water Customer REGULATORY Water Barium ug/L 7/5/2012 2000 -- 19.7 -- COMPOUNDS Bromate ug/L quarterly 10 -- 2.4 - 3.7 -- Regulated com- Chlorine, free mg/L daily 4 -- 0.81 0.78 pounds have been Chlorine, total mg/L daily 4 -- 0.94 -- shown to impact Combined Radium 226/228 pCi/L 8/21/2012 5 -- 0.88 -- health when they Fluoride mg/L monthly 4 -- 0.8 - 1.0 -- exceed regulations. Nitrate as (N03) calculated mg/L 4/8/2013 10 -- 0.43 -- The maximum level Sodium (Na) mg/L 7/5/2012 None -- 8 -- allowed in water is Sulfate mg/L 7/5/2012 250 -- 25 -- set by the Environ- Regulated Compounds Detected Compounds Regulated Total Haloacetic Acids (THAA-5) ug/L quarterly 60 -- -- 1.8 - 10.4 mental Protection Total Trihalomethanes (TTHM-4) ug/L quarterly 80 -- -- 5.2 - 11.5 Agency (EPA). It is Assimilable Organic Carbon ug/L 5/7/2012 NR 73 84 -- set at a level that Bromodichloromethane ug/L quarterly NR -- -- 1.7 - 6.1 assures the tap Bromoform ug/L quarterly NR -- -- 1.2 - 1.3 water is safe to Chloroacetic Acid ug/L quarterly NR -- -- 2.2 consume over a Chloroform ug/L quarterly NR -- -- 1.3 - 5.8 lifetime. Unregu- Chromium, Hexavalent ug/L quarterly UCMR 0.20 - 0.29 0.10 - 0.26 -- Cotinine ug/L 5/7/2012 NR 0.002 0.001 -- lated compounds Dibromoacetic Acid ug/L quarterly NR -- -- 1.4 - 2.4 are those that the Dibromochloromethane ug/L quarterly NR -- -- 2.1 - 5.0 EPA does not be- Dichloroacetic Acid ug/L quarterly NR -- -- 1.8 - 4.0 lieve pose a health Perfluorooctane Sulfonate (PFOS) ng/L 3/11/2013 UCMR 2.4 2.1 -- threat in drinking Perfluorooctanoic Acid (PFOA) ng/L 3/11/2013 UCMR 2.7 2.7 -- water or are still Progesterone ng/L 5/7/2012 NR 0.1 ND -- being evaluated. Unregulated Compounds Detected Compounds Unregulated Sulfamethoxazole ug/L 5/7/2012 NR 0.001 ND -- Total Organic Carbon mg/L monthly NR 1.1 - 2.1 1.1 - 1.5 -- We are regulated Trans-Testosterone ng/L 5/7/2012 UCMR 0.2 ND -- by the Illinois Envi- Trichloroacetic Acid ug/L quarterly NR -- -- 1.76 ronmental Agency Alkalinity mg/L monthly NR 105 - 127 91 -- (IEPA) as are all Conductivity uS/cm weekly NR 299 307 -- drinking water Hardness mg/L monthly NR 126 125 -- plants in Illinois. pH None daily 6.5-8.5 8.3 7.8 7.8 The IEPA lists Water Chemistry Water Turbidity NTU hourly 5 13.2 0.02 0.02 about 100 com- MCL is the maximum contaminant level allowed by state regulations. pounds that we Units of Measure include mg/l or milligrams per liter, which is the same as parts per million or PPM. must test for on an annual basis in our water. Micrograms per liter is noted as ug/l and is equal to part per billion (PPB). These compounds are the regulated com- NR depicts compounds that are not regulated by the Federal or State Government. pounds. We also voluntarily test our water for ND depicts compounds that were not detected during the testing process. more than 350 additional compounds that are — indicts no reportable data. unregulated. We do this to better understand UCMR are compounds that are unregulated at this time but the Federal Government is conducting research to our water quality and the performance of our determine if they should be regulated and at what level. water treatment process. Page 3 of this report contains information regarding all compounds found in our water. For in depth information about all the compounds in this report please visit the Environmental Protection Agency website at www.epa.gov/ drink/contaminants/index.cfm Regulated Compounds Detected in our Water What Each Compound is and its Entry into our Water System NATURALLY OCCURRING TREATMENT RELATED COMPOUNDS DETECTED COMPOUNDS DETECTED Barium Chlorine Barium is present fairly consistently in Lake The Illinois EPA requires that public water Michigan water at concentrations of about 0.02 supplies chlorinate their water. They require a OPEN DOOR PHILOSOPHY mg/L or about 100 times less than the chlorine level between 0.2 and 4.0 mg/L. We AT CLCJAWA maximum allowed level in drinking water. The strive for a does of 1 mg/L or the equivalent of source is believed to be from erosion of natural one pound of chlorine per one million pounds deposits though barium is found in air, soil and of water. The term free chlorine indicates the Here at CLCJAWA we take water water throughout the world.11 chlorine we measured that is not chemically treatment very seriously and strive bound to anything. Total chlorine is the sum of Minerals to keep the public informed. From Sodium and sulfate are present primarily due to free chlorine and bound or combined chlorine. erosion of soils and rock. These minerals are Combined chlorine is the fraction of chlorine providing a detailed water quality not viewed as a health concern by the USEPA. that binds with other substances in the water report to opening up our doors for after it is added. Both forms are effective Nitrates public tours, we make our data and disinfectants. Nitrate is present in nearly all lakes and our facilities accessible to all. streams including Lake Michigan, whose CLCJAWA has been providing tours primary source is from rainfall and the break- Fluoride down of organic matter. It may also enter The Illinois Department of Public Health free of charge to all that enjoy our through runoff from agricultural sources. 2 We require that public water supplies add fluoride 17 water. detected 0.43 mg/L of nitrate in our tap water to their water. Fluoride levels between 0.8 and the maximum level allowed is 10 mg/L. and 1.2 mg/L are optimum for dental health. Tours need to be scheduled in ad- vance and include a brief presenta- Radiological Substance Bromate We detected radium 226 & 228. Their source tion about our Lake Michigan source Bromate is produced in water during ozone in Lake Michigan is most likely from decay of disinfection. Ozone is used in drinking and water, followed by a tour of the minerals in the lake and its watershed. Most bottled water production to kill germs and drinking water facilities. Additional drinking water sources contain these eliminate odors in water. During this process, radioactive compounds at levels which are not activities can be added such as ozone reacts with harmless bromide in the considered a public health concern.6 Every- water and forms bromate.
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