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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran, REHS <br /> r' 1868 East Hazelton Avenue <br /> N Stockton, California 95205-6232 PROGRAM COORDINATORS <br /> ` Robert McClellon, REHS <br /> Jeff Carruesco, REHS, RDI <br /> cq .:-.. �P Kasey Foley, REHS <br /> C!F O RN Website: www.sjgov.org/ehd Linda Turkatte, REHS <br /> Phone: (209) 468-3420 Rodney Estrada, REHS <br /> Fax: (209) 464-0138 Adrienne Ellsaesser, REHS <br /> June10, 2013 <br /> Mark Lucchesi <br /> Lucca Winery <br /> 16261 East River Road <br /> Ripon, CA 95366 <br /> RE: Nitrates in your Water Well for Site Approval PA-1100122 <br /> As part of the Site Approval process, water test results were submitted by FGL Environmental in <br /> which a sample taken February 25, 2013, was tested for Nitrates and showed results of 46.1 <br /> ppm (parts per million) in your domestic well at 16261 East River Road, Ripon, California. <br /> The State Department of Health Services adopted a standard of 45 parts per million (ppm) for <br /> nitrates in public drinking water systems; however, private well owners are not legally required <br /> to meet this standard. As a precaution for yourself, members and guests, the Environmental <br /> Health Department would suggest that you have your domestic well tested annually to verify if <br /> the above-described chemical continues to be above state drinking standards. <br /> If your private well analysis for nitrate exceeds the State standard of 45 ppm 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. <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 <br /> bottled water or installing a water treatment device at the kitchen water tap, will not stop <br /> exposure to nitrates in your private water supply. Most treatment units sold for home <br /> installation only treat water at the point of use, such as the kitchen faucet, and do not <br /> prevent exposure through skin contact, bathing or inhalation. As a result, point of entry <br /> filters, which treat water for the entire house, are recommended because they remove all <br /> potential sources of exposure. The `Reverse Osmosis Purification Filter" is the <br /> recommended water treatment device in this case. It operates by passing the well water <br /> through a series of filters and reverse osmosis membranes thereby removing the nitrate <br /> contaminant. Water treatment equipment suppliers and installers are listed in your phone <br /> directory yellow pages under "Water Filtration & Purification Equipment." <br /> 3. A replacement well is also an alternative for providing uncontaminated water. It is <br /> recommended that a test well be drilled, in order to determine water quality prior to final <br /> placement of the well. Water quality may be determined and monitored through water <br />