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Date January 22, 2003 <br /> USA GASOLINE QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility No: 65 Address: 2500 West Lodi Avenue, Lodi, California <br /> USA Gasoline Project Supervisor: Charles Miller <br /> Consulting Co./Contact Person: Stratus Environmental, Inc.1 Gowri Kowtha <br /> Consultant Project No: 2007-0065-01 <br /> Primary Agency/Regulatory ID No: Mr. Harlin Knoll, San Joaquin County Public Health Services <br /> WORK PERFORMED THIS QUARTER (Fourth 2002): <br /> 1. Stratus collected groundwater samples from wells MW-1 through MW-4, MW-6 through MW-10, and <br /> S-2 on November 8, 2002. <br /> 2. Stratus compiled and evaluated groundwater monitoring data. <br /> 3. Stratus will prepare and submit a permit application package to San Joaquin Valley Unified Air <br /> Pollution Control District (SJVUAPCD) to abate and discharge soil vapors using activated carbon <br /> WORK PROPOSED FOR NEXT QUARTER(First 2003): <br /> • 1. The next sampling event is tentatively scheduled for February 2003. Groundwater samples will be <br /> collected for laboratory analysis from wells S-1, S-2, MW-1 through MW-4, and MW-6 through <br /> MW-10. <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 (BTEX), methyl tert-butyl ether (MTBE), tertiary amyl methyl <br /> ether (TAME), ethyl tertiary butyl ether (ETBE), di-isopropyl ether (D1PE), and tertiary butyl alcohol <br /> (TBA) by EPA Method SW826013. <br /> 3. Stratus will prepare and submit a workplan for vertical assessment of groundwater impact. <br /> Current Phase of Project: Monitoring and Remediation <br /> Frequency of Groundwater Sampling: All Wells= Quarterly <br /> Frequency of Groundwater Monitoring: Quarterly <br /> Groundwater Sampling Date: November 8,2002 <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: 44.00 to 46.59 feet below top of well casing <br /> Groundwater Flow Direction: South-Southeast <br /> PAUSA Gasoline100651Qtrly120021USA_65_4Q02.DOC 37-RATUS <br />