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GEOTECHNICAL <br /> NEIL O. ANDERSON ENVIRONMENTAL <br /> A N D A S S O C I A T E S INSPECTIONS A TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> POST TENSION DESIGN <br /> February 8, 2008 ECUPAL- <br /> NCA Project Number: LGS080006 <br /> FEB 1 3 2008 <br /> Rodney Estrada ENVIRONMENT HEATH <br /> San Joaquin County Environmental Health Department PERMIT/SERVICES <br /> 600 East Main Street <br /> Stockton, CA 95212 <br /> Re: Well Water Sample Constituents <br /> Depalma Property <br /> 18406 Hazelhurst Road <br /> Escalon, California <br /> Dear Mr. Depalma, <br /> The following discussion concerns the water sample constituent results from the well tested at the <br /> address 18406 Hazelhurst Road in Escalon, California. The well water sample was taken from a <br /> spigot on site by Mr. Jessen Welch of our office on January 29, 2008. <br /> Water Sample 7United <br /> The water samplfor ni rate and DBCP. DBCP was not detected in the water sample. <br /> Nitrate was founNO3, hich is below the maximum contaminant level (MCL) of 45 <br /> mg/L-NO3 set byes A. The analytical reports prepared byFGL 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 /> LODI 902 Industrial Way • Lodi,CA 95240 • 209.367.3701 • FAX 209-369.4228 • w .noandersonxonn <br />