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Stantec <br /> SECOND QUARTER 2008 GROUNDWATER MONITORING REPORT <br /> Introduction <br /> July 7;2008 <br /> 1.0 Introduction <br /> Stantec Consulting, Inc. Stantec former) SECOR International Incorporated SECOR has <br /> ( ) Y P ( ) <br /> prepared this report to document the second quarter 2008 groundwater monitoring and . <br /> sampling event performed at the Pacific Gas and Electric Company (PG&E) French Camp <br /> General.Construction Yard located at 401 East French Camp Road in french Camp, California <br /> (the Site; Figure 1). <br /> Groundwater monitoring wells were installed at the Site and first sampled in May 2007. Well <br /> installation procedures and initial sampling results were described in Stantec's document <br /> entitled, "Subsurface Investigation and Well Installation Report,"dated July 3, 2007 (SECOR, <br /> 2007a), and submitted to the San Joaquin County Environmental Health Department <br /> (SJCEHD). Chemical impacts to soil and groundwater observed at the Site are believed to have <br /> originated from former fuel aboveground storage tanks (ASTs). Therefore, the SJCEHD <br /> referred the case to the Central Valley Regional Water Quality Control Board (RWQCB) for <br /> regulatory review. This and previous groundwater monitoring reports have been submitted to <br /> the RWQCB, with a courtesy copy submitted to the SJCEHD for their records. <br /> This report is organized as follows: <br /> ❑ Section 2.0 summarizes background information and describes previous work <br /> ' performed at the Site to date; <br /> ❑ Section 3.0 describes groundwater monitoring and sampling procedures including <br /> analytical methods and waste handling procedures; <br /> ❑ Section. 4.0 presents groundwater monitoring results and summarizes chemical <br /> iJ <br /> concentrations in groundwater; <br /> ❑ Section 5.0 presents a discussion and recommendations; and <br /> ❑ Section 6.0 lists references cited in this report. <br /> Supporting documents are attached as tables, figures, and appendices to this report. <br /> 1 <br /> is is\pg&e\french camp\groundwater monitodng\rmy 2008 monitodng\gmr rpt_fnl.doc 1.1 <br />