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ENVIRONMENTAL HEA LTII'DE PART ME NT SAN JOAQUIN COUNTY Donna K. Reran. RY.H.S. _ 04 East WCK�1- Avenue. Third Floor Stockton, Califol-II'LL 95'()- AI Olsen, R.E.H.S. LI Tcicpholl,': ('09) COW1111. R-FAI.S. Fay: 209) 464-1)1 3,�' June 241. 2005 Ashiq and Khallda Javid 5109 E. Washington St. Stockton, CA 95215 RE: Nitrates in your Water Well for Minor Subdivision PA-0500109 Located at 5500 West Woodbridge Road, Lodi As part of the Minor Subdivision process, water test results were submitted by Earnest Smith, P.E. in which a sample taken April 6, 2005, was tested for Nitrates and showed results of 180 ppm (parts per million) in your domestic well at the above referenced address. The State Department of Health Services adopted a standard of 45 parts per million (ppm) for lally nitrates in public drinking water systems-, however, private well owners are not IeL I required to meet this standard. As a precaution for yourself, members and guests, the Environmental Health Department Would SLQ_',2,CSt that you have your domestic well tested annually to verify if the above-described chemical continues to be above state drinking standards. If your private well analysis for nitrate exceeds the State standard of 45 ppm again. the following, alternatives are being provided for your guidance: I As a temporary measure, it is recommended that bottled drinking: water be used it this well is supplying drinking water. 2. In cases where exposure may continue indefinitely, such as with contaminated private wells, installation of a water treatment device, such as a filter, may be advisable. However, using bottled water or installing a water treatment device at the kitchen water tap. ��ill not stop Cxposiirc to jjjti.atcs in your private water supplv. Most trei)tIllent units Sold 1-ger hollic I a - installation only treat water at the point of use, such as the kitchen faucet. -,W,I do not prevent exposure through skin contact, bathing or inhalation. As a result, ppjnLQLDjta filters., which treat water for the entire house, are recommended because they remove all potential sources of exposure. The "Reverse osmosis Purification Filter" is the recommended \\ater treatment device in this case. It operates by passing the well water through a series of filters and reverse osmosis membranes thereby removing the nitrate contaminant. Water treatment equipment suppliers and installers are listed in Your phone directory yellow paoes under "Water Filtration S, Purification Equipment.-