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Date December 21,2004 <br /> ,y Quarter 4"'Quarter,2004 <br /> • <br /> ARCO QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility No 760 <br /> Address 225 South Cherokee Lane, Lodi, CA <br /> ARCO Environmental Engineer Paul Supple <br /> Consulting Co/Contact Person URS/Vernon Elarth <br /> Consultant Project No 38466403 OL058 <br /> Primary Agency/Regulatory ID No _San Joaquin County Environmental Health Department <br /> Assembly Bill 681 Status Property Owned by Gurpreet Dhatt and Kuldeep Dhatt <br /> WORK PERFORMED THIS QUARTER (Fourth 2004) <br /> 1 Performed quarterly groundwater monitoring and sampling <br /> 2 Prepared and submitted quarterly groundwater monitoring report <br /> 3 Install two additional monitoring wells and drill one boring <br /> WORK PROPOSED FOR NEXT QUARTER (First 2005): <br /> 1 Perform quarterly groundwater monitoring and sampling <br /> 2 Prepare and submit quarterly groundwater monitoring report <br /> 3 Prepare assessment report <br /> QUARTERLY RESULTS SUMMARY (Fourth 2004): <br /> Current Phase of Project Mon itonn /Assessment <br /> Frequency of Groundwater Sampling _MW-1 through MW-3 sampled quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Is Free Product (FP) Present Onsite No <br /> FP Recovered this Quarter None <br /> Cumulative FP Recovered to Date None <br /> Current Remediation Techniques None <br /> Approximate Depth to Groundwater 61 70 to 63 03 feet below ground surface b s <br /> Groundwater Flow and Gradient Southeast @ 0 018 feet/foot (ft/ft) <br /> ANALYTICAL DATA REVIEW: <br /> Based on the review of the analytical and hardcopy data (chain-of-custody records, blanks, dilutions, holding times, <br /> LCS/LCSD results,MS/MSD results, and surrogate recoveries), the data are acceptable as reported by the laboratory <br /> with the following limitation <br /> * The elevated reporting limas were the result of dilutions performed by the laboratory in order to quantitate a <br /> target analyte <br /> K\Wpmcec.V5 BP ARCO\OW60\Quanerly\2004\4Qtr94\760 GWMR 4Q04 doc Page 1 <br />