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• Total Petroleum Hydrocarbons (both gasoline and diesel) we=e <br /> detected only in samples from MW-1 and HW-2. <br /> • Chlorinated organic compounds were only detected j MW-1, at levels <br /> below those initially found in December 1988 (with the exception of <br /> slight increases in chloroform and tr+.chloroethylene). <br /> • Total Petroleum Hydrocarbon gasoline levels in MW-1 are lower, and <br /> ` TPH gasoline levels in HW-2 are slightly higher, than those seen <br /> during initial sampling in December 1988. <br /> r„• <br /> + Analyses for organic lead, ethylene dibromide, and for the BTXE <br /> compounds (except B?X.Es in Mw-1) indicated no level:; above dotection <br /> i <br /> i..,, limits. <br /> After discussion with Ms. Diane Hinson, San Joaquin County Public Health <br /> Services (personal conimur.ication, 1990), it was decided to analyze the water <br /> samples from the monitoring wells for fecal coliform. ;"tiis decision was made <br /> due to the uncertainty of the location of underground sewer lines with respect <br /> to the treils, and for cost efficienc} to avoid a future round of sampling simply <br /> ... to address the presence of fecal;coliform from potentially leaking sewer lines. <br /> The laboratory analyses for fecal coliform for all wells except MW-1, are shown <br /> in Appendix B. <br /> recal cjliform was not detected in any of,the water samples, though wells <br /> w. Moi-2 and .11W-6 had natural coliform, levels greater than 16 r:PN/100 ml_ The lack <br /> of fecal coliform indicates that groundwater sampled at the monitoring well <br /> locations has not been imparted by sewer line Affluent_ <br /> 3.0 -Q&O-WDWA-1-F G— F <br /> Groundwater elevations were measured in wells Ii'+i 1 through HW-6 on <br /> Februavy 21 and 27, 1990. static fluid levels were measured prior to sampling <br /> each Wel 1. <br /> Bl0Y1TL.H2O 3 April, 1990 <br /> .r <br /> r, <br />