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. Date October 27, 2003 <br /> IBC QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 1426 South Lincoln Street, Stockton, California <br /> Consulting Co/Contact Person Stratus Environmental, Inc /Jay Johnson, R G <br /> Consultant Project No 2002-1426-01 <br /> Primary Agency/Regulatory ID No Nuel Henderson/San Joaquin County Environmental Health <br /> Department <br /> WORK PERFORMED THIS QUARTER (Third 2003) <br /> 1 Stratus collected groundwater samples from wells MW-1 and MW-2 on August 4, 2003 <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> WORK PROPOSED FOR NEXT QUARTER (Fourth 2003) <br /> 1 The next sampling event is tentatively scheduled for November 2003 Groundwater samples will be <br /> collected for laboratory analysis from wells MW-1 and MW-2 <br /> 2 Groundwater samples will be analyzed at a state-certified analytical laboratory for total petroleum <br /> hydrocarbons as gasoline (TPHG) by EPA Method SW8015B/DHS LUFT Manual, and for benzene, <br /> toluene, ethylbenzene, total xylenes (STEX), methyl tert-butyl ether (MTBE), tertiary amyl methyl <br /> ether (TAME), ethyl tertiary butyl ether (ETBE), dl-isopropyl ether (DIPS), and tertiary butyl alcohol <br /> (TBA) by EPA Method SW8260B <br /> Current Phase of Project Monitoring <br /> Frequency of Groundwater Sampling All Wells=Quarterly TT <br /> Frequency of Groundwater Monitoring Quarterly <br /> Groundwater Sampling Date August 4, 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 21 45 to 21 68 feet below top of well casing <br /> Groundwater Flow Direction NA <br /> Groundwater Gradient NA <br /> • <br /> P 1I B C\Stockton\Qrt1y1200311BC Stockton-3Q03 DOC 6 7K rus <br />