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KLEIN FELDER <br /> ' 4.2 RESULTS OF WATER SAMPLES <br /> ' The following table outlines the results of the water samples collected from this area of the project <br /> near the Shell Station For further details, please see the laboratory data sheets and chain of <br /> custody records In Appendix D <br /> ' Table 2 <br /> Selected Analytes in Groundwater <br /> ' Country Club Trunk Sewer Project <br /> Portion Adjacent to the Shell Station at 2575 Country Club Drive <br /> ' Stockton, California <br /> Sam le Location _ EPA�18260 Oil& ' <br /> p TPR-G Metals** °TPH-D <br /> Sample Date pH, ( } (mg/1L) <br /> `Comds, ` Grease - ) a <br /> Sample ID - m Iaincl. X'' m m_ <br /> PTI <br /> 04/05/03 None of these samples analyzed <br /> all this location <br /> PT2 <br /> 04/05/03 6 0* NO(<050) 0 12 Pb ND for all *** *** <br /> 27164 <br /> ' PT3 <br /> 04/05/03 6 0* ND(<050) 0 26 Pb NO for all *** *** <br /> 27165 <br /> PT4 <br /> 04/05/03 6 0* NO(<050) 0 50 Pb ND for all *** *** <br /> 27166 <br /> DW-32 <br /> 04/05/03 6 0* NO(<050) *** ND for all *** *** <br /> ' 27174 <br /> Bore Pit(SCT) <br /> 04/05/03 2 0* *** *** (BTEXDonly) *** ND(<050) <br /> 27168 <br /> ' 0 0058 Cr ND for all <br /> Bore Pit(SCT2) <O0050Ni (Also NO for <br /> 04/11/03 829 *** <00050CU all EPA NO(<5) *** <br /> 27416 <04507Fi Method <br /> ' <I.0050 Cd 6241625 <br /> <0 0050 Pb I analytes) <br /> PT5 <br /> ' 04/05/03 None of these samples analyzed <br /> all this location <br /> ND —Analyte not detected at or above the laboratory reporting Brut noted <br /> mg/kg milligram per kilogram < —less than <br /> ' BTEX —Benzene,Toluene,Ethylbenzene,Xylenes <br /> * <br /> —This pH has been lowered due to preservative used for VOC analysis Not actual pH <br /> Cr —chromium Ni —nickel <br /> Cu —copper Zn —zinc <br /> ' Cd —cadmium Pb —lead <br /> ** —Only tested for the metals shown in the table <br /> *** —This sample was not analyzed for this analyte <br /> Based on the results summarized In Table 2 (above), the only detectable analytes In the water <br /> . samples were total lead and chromium The total lead and chromium values for all samples <br /> analyzed were representative of normally occurring background levels <br /> 28699 E01 /5T03R627 Page 6 of 8 <br /> ' Copyright 2003,Kleinfelder,Inc April 22,2003 <br />