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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer <br /> P.O. Box 2009 0 (1601 East Hazelton Avenue) • Stockton, California 95201 i j F 6-4 <br /> (209)468-3400 <br /> October 11, 1991 <br /> A & R Trudeau <br /> 20422 N Highway 99 <br /> Acampo, CA 95220 <br /> Re: Soil Suitability for MS-91-96 <br /> A soil suitability study was submitted by Baumbach & Piazza, in <br /> which test for chemical Dibromochloropropane (DBCP) was tested for <br /> and showed results of . 51, mg/1 (parts per billion) . <br /> The State Department of Health Services adopted a standard of 0. 2 <br /> parts per billion (ppb) for DBCP in public drinking water systems <br /> in 1989 , however, private well owners are not legally required to <br /> meet this standard. <br /> If your private and/or agricultural well analysis for <br /> Dibromochloropropane (DBCP) exceeded the State standard of 0. 2 ppb, <br /> the following alternatives are being provided for your guidance: <br /> 1 . As a temporary measure, it is recommended that bottled <br /> drinking water to be used. <br /> 2 . In cases where exposure may continue indefinitely, such <br /> as with contaminated private wells, installation of a <br /> water treatment device, such as a carbon filter, may be <br /> advisable. However, using bottled water or installing a <br /> water treatment device at the kitchen water tap, will not <br /> stop exposure to DBCP if it is in your private water <br /> supply. Most treatment units sold for home installation <br /> only treat water at the point of use, such as the kitchen <br /> faucet, and do not prevent exposure through skin contact, <br /> bathing or inhalation. As a result, point of entry <br /> filters, which treat water for the entire house, are <br /> recommended because they remove all potential sources of <br /> exposure. The "granular activated carbon" filter is the <br /> recommended water treatment device in this case. It <br /> operates by passing the well water through a charcoal <br /> bed, thereby absorbing the DBCP contaminant. Water <br /> treatment equipment suppliers and installers are listed <br /> in your phone directory yellow pages under "Water <br /> Filtration & Purification Equipment. " <br /> 3 . A replacement well is also an alternative for providing <br /> uncontaminated water. It is recommended that a test well <br /> A Division of San Joaquin County Health Care Services <br /> k e <br />