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Date January 26, 2_004 <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 Cc/Contact Person Stratus Environmental, Inc 1 Gown S Kowtha, P E <br /> Consultant Project No 2007-0065-01 <br /> Primary Agency/Regulatory ID No Mr Harlin Knoll, San Joaquin County Public Health Services/ 1356 <br /> WORK PERFORMED THIS QUARTER(Fourth 2003) <br /> 1 Stratus measured groundwater elevations and collected groundwater samples from wells MW-1 <br /> through MW-4, and MW-6 through MW-8 on October 21, 2003 Wells S-1 and S-2 were dry Wells <br /> MW-9 and MW-10 went dry during purging and could not be sampled <br /> 2 Stratus re-started the SVE system after carbon change-out and the SVE system is currently <br /> operating on a continuous basis <br /> 3 Stratus conducted eleven site visits to re-start the SVE system, to conduct operation and <br /> maintenance of SVE system, and to collect the compliance air samples <br /> 4 Stratus prepared and submitted the source test report in accordance with the SJVAPCD ATC permit <br /> requirements <br /> (t, <br /> ti 5 Stratus compiled and evaluated groundwater monitoring data <br /> ` <br /> WORK PROPOSED FOR NEXT QUARTER(First 2004) <br /> 1 The next sampling event is tentatively scheduled for January 2004 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 SW801513IDHS L.UFT 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 (DIPS), and tertiary butyl alcohol <br /> (TBA) by EPA Method SW8260B <br /> 3 Upon receipt of an access agreement, Stratus will initiate assessment activities to characterize the <br /> vertical extent of impact to ground water <br /> 4 Stratus will conduct bi-monthly site visits to conduct operation and maintenance of SVS system and <br /> also to collect the compliance air discharge samples <br /> Current Phase of Project Remediation <br /> Frequency of Groundwater Sampling All Wells= Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> •� f'i � Groundwater Sampling Date October 21, 2003 <br /> P IUSA Gasoline100651Qtriy120031USA_65_4Q03 DOC 5TlZATUS <br />