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San Joaquin County <br /> oP4!'.!N, C DIRECTOR <br /> oG Environmental Health Department Linda Turkatte, REHS <br /> 2 y <br /> y 1868 E Hazelton Avenue <br /> Stockton, California 95205 PROGRAM COORDINATORS <br /> Robert McClellon,REHS <br /> �P Jeff Carruesco,REHS, RDI <br /> n't,FORN Website: www.sjcehd.com Kasen Foley, REHS <br /> Phone: 209 468-3420 Adrienne EstradaEllsaes, <br /> REHS <br /> Fax: (209)464-0138 <br /> November 2, 2015 <br /> Patricia Van Groningen <br /> 13300 S. Jack Tone Rd. <br /> Manteca, CA 95336 <br /> RE: Nitrates in your Water Well for 13300 S. Jack Tone Rd., Manteca <br /> The Environmental Health Department has received water test results taken by Abby Racco with Live <br /> Oak Geoenvironmental. The sample taken on August 25, 2015, was tested for nitrates and showed <br /> results of 10.5 mg/L (milligrams per liter)Nitrate Nitrogen in your domestic well at 13300 S. Jack <br /> Tone Rd. <br /> The State Department of Health Services adopted a standard of 10 mg/L for Nitrate Nitrogen in public <br /> drinking water systems; however,private well owners are not legally required to meet this standard. <br /> As a precaution for yourself, members and guests,the Environmental Health Department would <br /> suggest that you have your domestic well tested annually to verify if the above-described chemical <br /> continues to be above state drinking standards. <br /> If your private well analysis for nitrate exceeds the State standard of 10 mg/L again,the following <br /> 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 is <br /> supplying drinking water. Infants below the age of six months who drink water containing nitrate <br /> in excess of the MCL may quickly become seriously ill and, if untreated,may die because high <br /> nitrate levels can interfere with the capacity of the infant's blood to carry oxygen. Symptoms <br /> include shortness of breath and blueness of the skin. High nitrate levels may also affect the <br /> oxygen-carrying ability of the blood of pregnant women. <br /> 2. In cases where exposure may continue indefinitely, such as with contaminated private wells, <br /> installation of a water treatment device, such as a filter, may be advisable. However, using bottled <br /> water or installing a water treatment device at the kitchen water tap, will not stop exposure to <br /> nitrates in your private water supply. Most treatment units sold for home installation only treat <br /> water at the point of use, such as the kitchen faucet, and do not prevent exposure through skin <br /> contact, bathing or inhalation. As a result, point of entry filters, which treat water for the entire <br /> house, are recommended because they remove all potential sources of exposure. The "Reverse <br /> Osmosis Purification Filter" is the recommended water treatment device in this case. It operates by <br />