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E C 0 lR <br /> 7-Eleven Store#14117 <br /> Quarterly Groundwater Monitoring Report (2Q2005) <br /> August 5, 2005 <br /> Page 4 <br /> Groundwater analytical results are presented on Figure 3, and are summarized in Tables 1 <br /> and 2 Hydrocarbon concentrations were generally consistent with historical data TBA in <br /> MW-1 declined significantly from 2,000 µg/L in the first quarter 2005 to 16 �tg/L in the <br /> second quarter 2005 <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 Michael Infurna, San Joaquin County Environmental Health Department <br /> Mr James Barton, CRWQCB --CVR Sacramento Branch <br /> • <br /> 14117 05-20 Report doc SECOR International Incorporated <br />