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EC ® R <br /> 7-Eleven Store#17334 <br /> Quarterly Groundwater Monitoring Report (2Q2005) <br /> • July 13, 2005 <br /> Page 4 <br /> Groundwater analytical results are presented on Figure 3, and are summarized in Tables 1 <br /> and 2 Petroleum hydrocarbon concentrations were generally consistent with historical data <br /> to wells MW-2, MW-3, MW-4 and MW-5A MtBE concentrations continue to decrease in <br /> well MW-4 <br /> PURGE AND RINSATE WATER DISPOSAL <br /> Water generated during well sampling and equipment cleaning was pumped into a SECOR <br /> truck-mounted water tank The water was transferred into properly labeled 55-gallon drums <br /> and stored on-site The drummed non-hazardous petroleum hydrocarbon contaminated <br /> water is transported quarterly by Belshire Environmental to DeMenno Kerdoon in Compton, <br /> 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 Harlin Knoll, San Joaquin County Environmental Health Department <br /> Mr James Barton, California Regional Water Quality Control Board, Central Valley <br /> Region r <br /> 1 <br /> 17334 05-2Q Report doc SECOR lntematronal Incorporated <br />