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7-Eleven Stare#20632 <br /> • Quarterly Groundwater Monitoring Report(2Q2003) <br /> August 27, 2003 <br /> Page 3 <br /> (TBA), diisopropyl ether (DIPS), ethyl-tert-butyl ether (EtBE), and tert-amyl-methyl ether (TAME) <br /> using EPA Method 8260B The certified laboratory analytical report and chain-of-custody <br /> 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 James Barthovde, Regional Water Quality Control Board - Central Valley Region <br /> Mr Harlin Knoll, San Joaquin County Environmental Health Department <br /> • <br /> d <br /> 20632 03-2Q Report doc SECOR Intematronal Incorporated <br />