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PUBLIC HEALTH SERVICES ,oP ...o <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION q <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> August 10, 1998 <br /> FILE COPY <br /> Ike Rai <br /> 9610 Apple Blossom Way <br /> Stockton, CA 95209 <br /> RE: DBCP in your Water Wells(s) at 3400 W. Kindon Road, Loc <br /> A soil suitability study was submitted by Walter E. Curtis , in which a test for the chemical <br /> Dibromochloropropane (DBCP) was tested for and showed results of.88-92, and 2.10 ug/L <br /> (parts per billion) in your domestichrri ag tion well(s). <br /> The State Department of Health Services adopted a standard of 0.2 parts per billion (ppb) for <br /> DBCP in public drinking water systems in 1989; however, private well owners are not legally <br /> required to meet this standard. As a precaution for yourself and family, we would suggest that <br /> you have the domestic well tested annually to verify if the above-described chemical raises above <br /> State drinking standards. <br /> If your private and/or agricultural well analysis for Dibromochloropropane (DBCP) exceeded the <br /> State standard of 0.2 ppb, the following alternatives are being provided for your guidance: <br /> 1. As a temporary measure, it is recommended that bottled drinking water be used. <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 carbon filter, may be advisable. <br /> However, using bottled water or installing a water treatment device at the kitchen water <br /> tap, will not stop exposure to DBCP if it is in your private water supply. Most treatment <br /> units sold for home installation only treat water at the point of use, such as the kitchen <br /> faucet, and do not prevent exposure through skin contact, bathing or inhalation. As a <br /> result, point of entry filters, which treat water for the entire house, are recommended <br /> because they remove all potential sources of exposure. The "granular activated carbon" <br /> filter is the recommended water treatment device in this case. It operates by passing the <br /> well water through a charcoal bed, thereby absorbing the DBCP contaminant. Water <br /> treatment 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 />