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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIIN COUNTY <br /> � <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br /> 304 East Weber Avenue, Third Floor + Stockton, CA 95202 <br /> C/RORe� <br /> 2091468-3424 <br /> NITRATE <br /> May 28, 1997 <br /> ILE COP'S <br /> Doris Catramis <br /> 23346 Fredrick <br /> Ripon CA 95366 <br /> Re: Soil Suitability Study for Doris Catramis <br /> @ 23346 Fredrick, Ripon, CA MS-96-15 <br /> I <br /> A soil suitability study was submitted by Quality Control Inspection Inc. in which test for <br /> Nitrate was tested for and showed results of 62 mg/1 (parts per million). <br /> The State,Department of Health, Services adopted a standard of 45 parts per million (ppm) for I <br /> nitrates in public drinking water systems however, private well owners are not legally required <br /> to meet this standard. <br /> If your private and/or agricultural well analysis for nitrate exceeded the State standard of 45 <br /> ppm, the following alternatives are being provided for your guidance: <br /> 1. As a temporary measure, it is recommended that bottled drinking water be <br /> used. <br /> k <br /> 2. In cases where exposure may continue indefinitely, such as with contaminated <br /> private well k <br /> p s, installation of a water treatment device. such as a filter, maybe <br /> advisable. However, using bottled water or installing a water treatment device <br /> at the kitchen water tap, will not stop exposure to if it is in your private water <br /> supply. Most treatment units sold for home installation only treat water at the <br /> point of use, uch as faucet. As a result, �ain_t_of entry_ filters, which treat <br /> water for the entire house, are recommended because they remove all potential <br /> sources of exposure. The "Reverse Osmosis Purification Filter" is the i <br /> recommended water treatment device in this case. It operates by passing the <br /> well water through a series of filters and reverse osmosis membranes thereby j <br /> removing the nitrate contaminant. Water treatment equipment suppliers and <br /> installers are listed in your phone directory yellow pages under "Water '� ! <br /> Filtration & Purification Equipment". <br /> t <br /> -- i <br /> i <br /> A Qi inion of fan joaquin County Health Care Services } <br />