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Date October 31, 2003 <br /> JOE'S TRUCK PLAZA QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 15600 South Harlan Road, Lathrop, California <br /> Project Supervisor Kashman Singh /Dalwinder Dhoot <br /> Consulting Co/Contact Person Stratus Environmental, Inc /Stephen J Carter, R G _ <br /> Consultant Project No 2033-15600-01 <br /> Primary Agency/Regulatory ID No Margaret Lagorio/San Joaquin County Environmental Management <br /> Department <br /> WORK PERFORMED THIS QUARTER (Third 2003) <br /> 1 Stratus measured groundwater elevations and collected groundwater samples from wells MW-1 <br /> through MW-6, MWO-1 through MWO-3, and MWO-1 X on September 15, 2003 <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> 3 A Site Conceptual Model(dated September 4, 2003) was submitted to SJCEMD <br /> WORK PROPOSED FOR NEXT QUARTER(Fourth 2003) <br /> 1 The next sampling event is tentatively scheduled for December 2003 Groundwater samples will be <br /> collected for laboratory analysis from wells MW-1 through MW-6, MWO-1 through MWO-3, and <br /> MWO-1 X <br /> 2 Groundwater samples will be analyzed at a state-certified analytical laboratory for total petroleum <br /> hydrocarbons as diesel (TPHD) and as gasoline (TPHG) by EPA Method SW8015B/DHS LUFT <br /> Manual, and for benzene, toluene, ethylbenzene, total xylenes (BTEX), methyl tert-butyl ether <br /> (MTBE), tertiary amyl methyl ether (TAME), ethyl tertiary butyl ether (ETBE), di-isopropyl ether <br /> (DIPS), tertiary butyl alcohol (TBA), 1,2-dichloroethane (1,2-DCA), 1,2-dlbromoethane (1,2-DBA), <br /> ethanol, and methanol by EPA Method SW8260B <br /> 3 A Work Plan for Additional Assessment(dated October 21, 2003) proposing additional assessment, <br /> feasibility testing, and interim remedial activities has been submitted to SJCEMD <br /> Current Phase of Project Assessment <br /> Frequency of Groundwater Sampling All Wells=Quarterly _ <br /> Frequency of Groundwater Monitoring _ Quarterly <br /> Groundwater Sampling Date September 15, 2003 <br /> Is Free Product(FP) Present on Site No <br /> FP Recovered This Quarter No <br /> Cumulative FP Recovered to Date NA <br /> Approximate Depth to Groundwater 9 01 to 10 25 feet below top of well casing <br /> Groundwater Flow Direction Northeast <br /> Groundwater Gradient 0 0016 ft/ft <br /> P We's Truck P1aza\Quarterly12003voe s'Truck P3aza_3Q03 DOC 5 rKA 7-115 <br />