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i <br /> Project No. 034-00009 <br /> Page No.3 <br /> As a part of a Phase I ESA prepared by Kleinfelder in August 1996, one groundwater sample was <br /> collected from well MW-1 in June 1996. Laboratory analytical results from the water sample indicated <br /> concentrations of petroleum hydrocarbon constituents were not detected at or above the respective <br /> laboratory reporting limits. A copy of a portion of Kleinfelder's Phase I ESA,report and the associated <br /> laboratory analytical report are included as Attachment 6. <br /> i <br /> Krazan Groundwater Sampling <br /> ,As ;a precautionary measure, Krazan recommended that an additional groundwater water sample be <br /> collected from well MW-1 and analyzed for petroleum hydrocarbons. On May 8, 2000, Krazan sounded 1 <br /> well and the depth to groundwater. Based on the <br /> the well, including measuring the depth o£ the p <br /> measurements, the total water volume of the well was calculated and three volumes were purged prior to <br /> sampling. .A single water sample was then collected from the well and submitted, under COC, to SunStar <br /> Laboratories, Inc., of Tustin, California, for analysis of total petroleum hydrocarbons (TPH) as gasoline <br /> (TPH-G) and diesel (TPH-D); benzene,toulene, ethylbenzene, and total xylenes (BTEX); methyl tertiary <br /> butyl ether (MTBE); and total lead in accordance with EPA Methods 8015m, 8020, and 6010. These <br /> constituents were not detected at or above the respective laboratory reporting limits in the sample from <br /> MW-1. A copy of the laboratory analytical report, COC, and chromatogram for the aromatic volatile <br /> hydrocarbons are attached(Attachment 7). <br /> Conclusion <br /> Groundwater samples collected during the installation of well MW-1, installed in 1991 to monitor <br /> groundwater near the site's former UST, and the subsequent groundwater sampling in June. 1996 and <br /> May 2000 indicate that petroleum hydrocarbon constituents, including MTBE, were not detected at or <br /> above the laboratory reporting limits. Thus, there .appears to be no impact to groundwater from <br /> petroleum hydrocarbon near the former UST. These results and the information provided by'this request <br /> are intended to satisfy the needs of the SJCEHD and support the granting of"no further action" status for <br /> the subject site. <br /> KRAZAN&ASSOCIATES,INC. <br /> offices Serving the Western united States <br /> 3400009.1tr <br />