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pU1N <br /> _I_- 66' SANJOAQUIN Environmental Health Department <br /> " J! yr �' COUNTY <br /> Linda Turkatte, REHS, Director <br /> Greatness grows here. Kasey Foley,REHS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Robert McClellan,REHS <br /> Jeff Carruesco,REHS,RDI <br /> Rodney Estrada,REHS <br /> Willy Ng,REHS <br /> March 16, 2018 Muniappa Naidu,REHS <br /> Bart Vink <br /> 31000 S. Chrisman Road <br /> Tracy, CA 95376 <br /> RE: Nitrates in your Water Well for Address <br /> The Environmental Health Department has received water test results taken by A&L Western <br /> Agricultural Laboratories, Inc. The sample taken on 2/21/2018, was tested for nitrates and showed <br /> results of 65 mg/L (milligrams per litre) Nitrate as Nitrogen (N) in your domestic well at 31000 S. <br /> Chrisman Rd. <br /> The State Department of Health Services adopted a standard of 10 mg/L for Nitrate as <br /> Nitrogen (N) in public drinking water systems; however, private well owners are not legally <br /> required to meet this standard. As a precaution for yourself, members and guests, the <br /> Environmental Health Department would suggest that you have your domestic well tested <br /> annually to verify if the above-described chemical continues to be above state drinking <br /> standards. <br /> If your private well analysis for nitrate exceeds the State standard of 10 mg/L again, the <br /> following alternatives are being provided for your guidance: <br /> 1. As a temporary measure, it is recommended that bottled drinking water be used if this well <br /> is supplying drinking water. Infants below the age of six months who drink water containing <br /> nitrate in excess of the MCL may quickly become seriously ill and, if untreated, may die <br /> because high nitrate levels can interfere with the capacity of the infant's blood to carry <br /> oxygen. Symptoms include shortness of breath and blueness of the skin. High nitrate <br /> levels may also affect the oxygen-carrying ability of the blood of pregnant women. <br /> 2. In cases where exposure may continue indefinitely, such as with contaminated private <br /> wells, installation of a water treatment device, such as a filter, may be advisable. However, <br /> using bottled water or installing a water treatment device at the kitchen water tap, will not <br /> stop exposure to nitrates in your private water supply. Most treatment units sold for home <br /> installation only treat water at the point of use, such as the kitchen faucet, and do not <br /> prevent exposure through skin contact, bathing or inhalation. As a result, point of entry <br /> filters, which treat water for the entire house, are recommended because they remove all <br /> potential sources of exposure. The "Reverse Osmosis Purification Filter" is the <br /> recommended water treatment device in this case. It operates by passing the well water <br /> through a series of filters and reverse osmosis membranes thereby removing the nitrate <br /> 1868 E. Hazelton Avenue I Stockton, California 952051 T 209 468-34201 F 209 464-0138 1 www.sjcehd.com <br />