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„ <br /> Date October 25, 2004 <br /> • JOE'S TRUCK PLAZA QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 15600 South Harlan Road, Lathrop, California <br /> Project Supervisor Kashman Singh 1 Dalwinder Dhoot <br /> Consulting Co/Contact Person Stratus Environmental, Inc 1 Stephen J Carter, R G <br /> Consultant Project No 2033-15600-01 <br /> Primary Agency/Regulatory ID No Margaret Lagono 1 San Joaquin County Environmental Management <br /> Department <br /> WORK PERFORMED THIS QUARTER(Third 2004) <br /> 1 Stratus measured groundwater elevations and collected groundwater samples from wells MWA <br /> through MW-7, MWO-1 through MWO-3, and MWO-1X on September 16, 2004 <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> 3 Stratus prepared and submitted a Subsurface Assessment Report (dated August 11, 2004) and a <br /> Dual Phase Extraction Test Report(dated September 28, 2004) <br /> WORK PROPOSED FOR NEXT QUARTER(Fourth 2004) <br /> 1 The next sampling event is tentatively scheduled for December 2004 Groundwater samples will be <br /> • collected for laboratory analysis from wells MWA through MW-7, 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-dibromoethane (1,2-DBA), <br /> ethanol, and methanol by EPA Method SW8260B <br /> 3 Stratus has requested a meeting with SJCEHD and RWQCB to discuss additional assessment <br /> activities and remedial options for the site <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 16, 2004 <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 8 80 to 9 90 feet below top of well casing <br /> Groundwater Flow Direction East(on-site), east-northeast(off-site) - <br /> . Groundwater Gradient 0 0008 and 0 0010 ft/ft <br /> P Voe's Truck Ptaza\Quarter1y12004Voe's Truck PWa_3Q04 DOC STRATUS <br />