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NEIL <br /> NEIL O. ANDERSON �'� ENVIRONMENTAL <br /> j �- <br /> F A N D A S S O :C I A T E S I FNSPECTIONS & TESTING <br /> !i LABORATORY SERVICES j <br /> POOL ENGINEERING <br /> � ON DESIGN <br /> August 28,2006 <br /> NOA Project Number:E06087A AUG 2 9 2006 <br /> Greg Oliveira <br /> ` ENVIRONMENT HEALTH <br /> San Joaquin County Environmental Health Department PERMIT/SERVICES <br /> 304 E. Weber Avenue <br /> k <br /> Stockton,CA 95212 <br /> Re: Harvest Bible Church SSS/NLS <br /> Water Sample Constituents . <br /> . F <br /> I <br /> Dear Greg, <br /> The following discussion concerns the water sample constituent results from the well tested at <br /> Harvest Bible Church property, located at 11130 North Highwayi 99,Lodi. <br /> I <br /> Water Sample Constituents <br /> The water sample was analyzed for nitrate and DBCP. DBCP was not detected in the water sample. <br /> Nitrate was found at 22.0 mg/L-NO3,which is below the maximum contaminant level (MCL) of 45 <br /> mg/L-NO3 set by the United States EPA. The analytical reports prepared by FGL Environmental <br /> are attached. <br /> Well construction, seals, age and depth of the well screens may Iplay significant part in assessing the <br /> levels of nitrate and DBCP in various aquifers. Without knowing specific details regarding well <br /> construction and condition,it would be difficult to accurately comment on the condition of the <br /> aquifer. Essentially,the water sample concentration approximately indicates the contaminant <br /> concentration level of the aquifer from which the well its drawing. It is Neil O. Anderson and <br /> Associates' opinion that,in general, near-surface aquifers are more'likely to have elevated <br /> concentrations of nitrate and DBCP than the deeper aquifers. However the contaminant <br /> concentration of one aquifer cannot give any indication as to the concentrations of any other aquifer <br /> regardless of proximity. <br /> Theresence of nitrates is not uncommon in shallow ground later aquifers in San Joaquin County <br /> P I <br /> and other parts of the Central Valley. Nitrate in ground water occurs as a result of the application of <br /> fertilizers,livestock waste, and untreated septic tank waste. Nitrate is mobile and often accumulates <br /> in the shallow ground water zones. <br /> F <br /> LODI ■ SACRAMENTO ■ MOD ESTO <br /> i ENVIRONMENTAL DIVISION 902 Industrial Way,Lodi,California 93240 0 209.367.3701 0 209.369.4228 fax ■www.noanderson.com <br />