Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
I <br /> San Joaquin County DIRECTOR <br /> au'" <br /> DonnaHeran, REHS <br /> ° Environmental Health De Department ASSISTANT <br /> DIRECTOR <br /> Z 600 East Main Street Laurie Cotulla, RENS <br /> Stockton, California 95202-3029PROGRAM COORDINATORS <br /> t <br /> +=r . .:.- :. �'• Carl Borgman,REHS <br /> RDI <br /> Website: www.sl9 9/ehd ov.or Mike Huggins,REHS, <br /> qL�F o•�i� Margaret Lagorio,REHS <br /> Phone: (209)468-3420 Robert McClellon, REHS <br /> i Faz: (209)464-0138 Jeff Carruesco,REHS, RDI <br /> f Kasey Foley, REHS <br /> September 23, 2008 <br /> Rhona Cheatwood <br /> 37651 South Bird Road <br /> Tracy, CA 95304 <br /> Subject: Nitrates in your Water Well for Site Approval PA-0800137 (SA) <br /> As part of the Site Approval process, water test results were submitted by Chesney Consulting <br /> in which samples taken September 4, 2008, were tested for nitrates and showed results of 46 <br /> parts per million (ppm) in your domestic well at 37651 South Bird Road, Tracy, CA. <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 owners are not legally required to <br /> 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 <br /> following 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 <br /> is supplying drinking water. <br /> i <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 /> bottledvater 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 /> sample analysis performed by a State Certified Laboratory. (See attached list of State <br /> Certified Laboratories). <br />