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l <br /> 1.0 SUMMARY <br /> 1.1 SOIL AND GROUNDWATER SAMPLING AND ANALYSIS <br /> The purpose of this Phase II ESA-soil and groundwater sampling was to attempt to identify if <br /> previous uses of the Property as a dry cleaner contributed to local soil and groundwater <br /> contamination. <br /> The reported results of the laboratory analysis indicated that volatile organic compound (VOC) <br /> concentrations in both soil and groundwater samples were either not detected above laboratory <br /> reporting limits (ND) or were not high enough to be of regulatory concern. <br /> 1.2 DISCUSSION <br /> Based upon the soil and groundwater analysis it does not appear that sampled areas of the Property <br /> have been adversely impacted by former dry cleaning operations. Withthe exception of one sample <br /> SB3w concentrations of VOCs were not detected above laboratory reporting limits. <br /> have concentrations of tetrachloroethene PCE at 0.72 micro ains er.liter <br /> SB3w was reported to (PCE) �' P <br /> P <br /> Gtg/L) or parts per billion (ppb). This groundwater sample was collected from the boring located <br /> j" south of the former dry cleaning suite, near one of the rear doors of the suite. The maximurn <br /> contaminant level (MCL) for PCE is 5.0 ppb. This reported groundwater concentration of PCE <br /> does appear to represent significant contamination. <br /> Table 1, located in Section 3.0 Soil and Groundwater Sampling, lists samples with detectable <br /> concentrations of VOCs.For laboratory data sheets results see Appendix-Laboratory Data Reports. <br /> These results and conclusions are subject to the limitations outlined in section 4.0 Limitations. <br /> 1.3 RECOMMENDATIONS <br /> Based upon the results of data accumulated during this assessment, Ceres Associates does not <br /> recommend further investigation or assessment at this time. <br /> Ceres Associates 1 Project CAI 156-2 <br /> Cathay Bank(Former Valley Cleaners,Tracy) January 12,2004 <br />