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Date July 30, 2004 <br /> • .JOE'S TRUCK PLAZA QUARTERLY GROUNDWATER MONITORING REPORT <br /> FacilityAddress 15600 South Harlan Road Lathrop,, California <br /> Project Supervisor Kashmarl 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/San Joaquin County Environmental Management <br /> Department <br /> WORK PERFORMED THIS QUARTER(Second 2004) <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-1X on June 29, 2004 <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> 3 Stratus oversaw Gregg In-Situ advance eight cone penetration test (CPT) borings to depths up to <br /> 100 feet below ground surface (bgs) on May 10 through 14, 2004 Soil and groundwater samples <br /> were collected at various depths in the borings <br /> 4 Stratus oversaw Gregg Drilling install extraction well MW-7 to a depth of 19 feet bgs on May 14, <br /> 2004 This well was subsequently surveyed and developed <br /> 5 Stratus conducted a Dual Phase Extraction (DPE) Feasibility test from June 14 to 16, 2004, utilizing <br /> well MW-7 as the extraction point <br /> WORK PROPOSED FOR NEXT QUARTER(Third 2004) <br /> 1 The next sampling event is tentatively scheduled for September 2004 Groundwater samples will be <br /> collected for laboratory analysis from wells MW-1 through MW-7, MWO-1 through MWO-3, and <br /> MWO-iX <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 will prepare and submit a report documenting the CPT and well installation activities Results <br /> of the feasibility testing will be submitted in a separate report <br /> Current Phase of Project Assessment <br /> Frequency of Groundwater Sampling _All Wells= Quarterly - <br /> Frequency of Groundwater Monitoring Quarterly _ <br /> Groundwater Sampling Date June 29, 2004 <br /> Is Free Product (FP) Present on Site No <br /> P\Joe's Truck P1aza\Quarterly12004\Joe's Truck Plaza_2Q04 DOC STRATU5 <br />