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� f <br /> r <br /> . GROUND ZERO ANALYSIS, INC. <br /> 1714 Main Street <br /> Escaton, California 95320-1927 <br /> Telephone (209)838-9888 �����[�w��] <br /> Facsrmde (209)838-9883 <br /> ED <br /> JUL 2 3 2003 <br /> July 21, 2003 ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Mr Jeff Wong <br /> q <br /> San Joaquin County 110 t• <br /> Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 <br /> Subject Second Quarter 2003 Groundwater Monitoring and Sampling Report <br /> Speedy Mart, 8200 N Highway 99, Morada, CA <br /> Dear Mr Wong <br /> This letter report summarizes the Second Quarter 2003 groundwater monitoring and sampling <br /> activities at the subject site Figure 1 presents a site vicinity map <br /> 1.0 SITE ACTIVITIES <br /> Activities at the site included removing free product from well MW1, monitoring groundwater <br /> levels in all site wells, purging and sampling groundwater from wells MW1 through MW913, and <br /> analyzing groundwater samples for the presence of gasoline constituents <br /> 2 0 FIELD WORK <br /> 2.1 Free Product Measurement and Recovery <br /> As an interim remedial action, Ground Zero is removing product from well MWl Since August <br /> 16, 2001, a total of approximately 131 5 gallons of product/water mixture has been extracted by <br /> either manually bailing the well, or through the operation of a passive skimmer, and transferring <br /> the liquid into properly labeled DOT-approved 55-gallon drums in accordance with 49 CFR part <br /> 172 and 40 CFR part 262 <br /> • A Ground Zero technician measured free product thickness and removed 10 5 gallons of <br /> product/water mixture from well MW 1 during the reporting period A passive skimmer was <br /> 0 IGROUNDZEITULEI3URG\Reports\QMR12003UQM2003 doc <br />