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n <br /> I <br /> I GEOTECHNICAL <br /> NEIL O. ANDERSON 1 ENVIRONMENTAL <br /> AN D ASSOCIATES INSPECTIONS a TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> POST TENSION DESIGN <br /> January 17, 2008 <br /> NOA Project Number: E07197BU <br /> Ms. Lisa Medina l� v � <br /> San Joaquin County Environmental Health Department JAN 2 3 2008 <br /> 600 East Main Street El'l RONI'dENT HEALTH <br /> Stockton, CA 95212 PERMIT/SERVICES <br /> Re: Well Water Sample Constituents <br /> Kooyman Property <br /> 5525 West Turner Road <br /> Lodi, California <br /> Dear Mr. Kooyman, <br /> The following discussion concerns the water sample constituent results from the well tested at the <br /> address 5525 West Turner Road, Lodi, California. The well water sample was taken from a faucet <br /> on site by Mr. Jessen Welch of our office on November 11, 2007. <br /> Water Sample Constituents <br /> The water sampl a ze o itrate and DBCP. BCP was not detect In the water sample. <br /> Nitrate was foun%th <br /> 41.4 mg/L-NO3 hich is below the inant level {MCL} of 45 <br /> mg/L-NO3 set by ' ed St PA. The analytical reports prepared by FGL Environmental are <br /> attached. <br /> Well construction, seals, age and depth of the well screens may play significant part in assessing <br /> the 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 is 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 <br /> aquifer regardless of proximity. <br /> ANGELS CAMP • LODI • MODESTO • RENO . SACRAMENTO • WALNUT CREEK <br /> L 0 D 1 902 Industrial Way • Lodi,CA 95240 • 209.367.3701 • FAX 209-369.4228 • www.noanderson.com <br />