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C0R <br /> 7-Eleven Store#14117 <br /> • Quarterly Groundwater Monitoring Report(2Q2003) <br /> August 27, 2003 <br /> Page 3 <br /> approved containers, labeled, logged onto chain-of-custody documents, and transported on ice to a <br /> California state-certified laboratory Copies of the field notes have been included in Attachment A <br /> GROUNDWATER SAMPLE ANALYSES AND RESULTS <br /> The groundwater samples collected from MW-1 through MW-7 were analyzed for the presence of <br /> TPHg, BTEX, and fuel oxygenates MtBE, tert-butyl alcohol (TBA), dusopropyl ether (DIPS), ethyl- <br /> tert-butyl ether (EtBE), and tert-amyl-methyl ether (TAME) using EPA Method 8260B The certified <br /> laboratory analytical report and chain-of-custody documentation are presented as Attachment B <br /> Groundwater analytical results are presented on Figure 3 and are summarized in Tables 1 and 2 <br /> Chemical concentrations were generally consistent with historical data <br /> PURGE AND RINSATE WATER DISPOSAL <br /> Water generated during well sampling and equipment cleaning is pumped into a SECOR truck- <br /> mounted water tank The water is transferred into properly labeled 55-gallon drums and stored on- <br /> site The drummed non-hazardous petroleum hydrocarbon contaminated water is transported <br /> quarterly by Belshire Environmental to Demenno Kerdoon in Compton, California, for disposal <br /> ATTACHMENTS <br /> Figures <br /> Tables <br /> Attachment A— Field Notes <br /> Attachment B —Certified Laboratory Analytical Reports and Chain-of-Custody Documentation <br /> cc Mr Michael Infurna, San Joaquin County Public Health Services <br /> 14117 03-2Q Report doc <br /> SECOR International Incorporated <br />