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4.2 Groundwater <br /> In the March 1993 sampling event, low concentrations of benzene and xylene were detected <br /> m MW-2 However, the presence of petroleum hydrocarbon impacted groundwater has not <br /> been confirmed in subsequent samplings. In the January 1994 event benzene, toluene, and <br /> xylene were initially reported in MW-3, but reanalysis of the sample did not confirm the <br /> presence of detectable hydrocarbons. Although the reanalysis was not performed until 17 <br /> days after the sample was collected, it is unlikely that impacted groundwater is present at _ <br /> the site. <br /> i <br /> Since no petroleum hydrocarbons have been detected in groundwater for four consecutive <br /> quarters, we believe that the hydrocarbons initially reported were not representative of site <br /> conditions and no impacted groundwater remains at the site <br /> 4.3 Site Closure <br /> In accordance with the "Central Valley Regional Board Requests for Site Closure - <br /> Addendum to Appendix A" and the request of the PHS/EHD, a survey of surrounding <br /> production wells for municipal, domestic, agriculture, industry and other uses within 2000 <br /> feet of the site was performed and reported in the April 1994 Quarterly Report Four <br /> production wells were identified within a 2,000-foot radius of the site The wells are listed <br /> in Table 7 <br /> TABLE 7 <br /> WELL SURVEY <br /> Production Wells Within 2,000 Feet <br /> -- Name/Location Type Depth _ <br /> California Canners & Growers Industrial N/A <br /> Plant #7 <br /> N "A" Street and E Weber Ave <br /> Roek Bros Industrial 220 feet <br /> 1514 East Market <br /> Stockton Metro Industnal SO feet <br /> 1533 East Lindsay <br /> Municipal Well Municipal N/A <br /> SW corner of Fremont Street and <br /> Sierra Nevada Street <br /> I ' <br /> 12 <br />