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Environmental Health Department <br />Jasjit Kang, REHS, Director <br />Greatness grows here. Muniappa Naidu, REHS, Assistant Director <br />PROGRAM COORDINATORS <br />Robert McClellon, REHS <br />Jeff Carruesco, REHS, RDI <br />Willy Ng, REHS <br />Michael Kith, REHS <br />Melissa Nissim, REHS <br />Steven Shih, REHS <br />SAN JOAQUIN <br />COUNTY <br />September 28, 2021 <br />Sombun Laxanaamporn <br />PhraBuddhivongsamunee Buddhist Temple <br />11253 N. Thornton Rd <br />Stockton, CA 95366 <br />RE: Nitrates in your Water Well for 11241, 11253, 11265 Thornton, Stockton <br />This letter supersedes Condition #2 of the previous letter dated November 16, 2020 from the <br />Environmental Health Department (EHD), in response to the Soil Suitability/Nitrate Loading (SSNL) Study <br />dated July 11,2019 (SR0080888) and its addendum dated October 19, 2020 (SR0082803) prepared by <br />Terracon, which was conducted as a condition for the land use project PA-1600266 <br />The EHD has received water test results taken by Terracon. The sample taken on May 9, 2019 was <br />tested for nitrates showed results of 27 mg/L (milligrams per litre) Nitrate as Nitrogen in your domestic <br />well at for 11241, 11253, 11265 Thornton, Stockton. <br />The State Water Resources Control Board adopted a Maximum Contamination Level (MCL) of 10 mg/L <br />for Nitrate as Nitrogen (N) in public drinking water systems; however, private well owners are not legally <br />required to meet this standard. As a precaution for yourself, members and guests, the EHD would <br />suggest that you have your domestic well tested annually to verify if the above-described chemical <br />continues to be above state drinking standards. <br />If your private well analysis for nitrate exceeds the State standard of 10 mg/L again, the following <br />alternatives are being provided for your guidance: <br />As a temporary measure, it is recommended that bottled drinking water be used if this well is supplying <br />drinking water. Infants below the age of six months who drink water containing nitrate in excess of <br />the MCL may quickly become seriously ill and, if untreated, may die because high nitrate levels can <br />interfere with the capacity of the infant's blood to carry oxygen. Symptoms include shortness of breath <br />and blueness of the skin. High nitrate levels may also affect the oxygen-carrying ability of the blood <br />of pregnant women. <br />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 bottled <br />water or installing a water treatment device at the kitchen water tap, will not stop exposure to nitrates <br />in your private water supply. Most treatment units sold for home installation only treat water at the <br />point of use, such as the kitchen faucet, and do not prevent exposure through skin contact, bathing <br />or inhalation. As a result, point of entry filters, which treat water for the entire house, are <br />recommended because they remove all potential sources of exposure. The "Reverse Osmosis <br />Purification Filter" is the recommended water treatment device in this case. It operates by passing <br />the well water through a series of filters and reverse osmosis membranes thereby removing the nitrate <br />1868 E. HazeIton Avenue I Stockton, California 95205 I T 209 468-3420 I F 209 464-0138 I www.sjgov.org/ehd