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PUBLIC -VEfL1WmSERV10ES <br /> SAN JOAQUIN COUNTY �aP4H!.y <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer _ <br /> 304 E.Weber Ave., 3rd Floor • P. O. Box 388 • Stockton, CA 95201-0388 - - <br /> 209/468-3420 <br /> October 26, 1995 <br /> Monty Sanderbeck <br /> 18412 East Louise Avenue <br /> Escalon, CA 95320 <br /> Re: MS-93-117 (18412 East Louise Avenue) <br /> A soil suitability study was submitted by Dwan C. Tosch in which a test for Nitrate was <br /> tested for and showed results of 68 ppm (parts per million) in your well on Parcel #2 . <br /> The State Department of Health Services adopted a standard of 45 parts per million (ppm) <br /> for nitrates in public drinking water systems however, private well owners are not legally <br /> required to meet this standard. As a precaution for yourself and family, we would suggest <br /> that you have your domestic well retested to verify the above sample results. <br /> If your private and/or agricultural well analysis for nitrate exceeded the State standard of 45 <br /> ppm again, the following alternatives are being provided for your guidance: <br /> 1. As a temporary measure, it is recommended that bottled drinking water to be <br /> used if this well is supplying drinking water.. <br /> 2. In cases where exposure may continue indefinitely, such as with contaminated <br /> private wells, 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, such as the kitchen faucet. As a result, point of entry filters, <br /> which treat water for the entire house, are recommended because they remove <br /> all potential sources of exposure. The "Reverse Osmosis Purification Filter" <br /> is the recommended water treatment device in this case. It operates by <br /> passing the well water through a series of filters and reverse osmosis <br /> membranes thereby removing the nitrate contaminant. Water treatment <br /> equipment suppliers and installers are listed in your phone directory yellow <br /> pages under '"Water Filtration & Purification Equipment." <br /> A Division of San Joaquin County Health Care Services <br />