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, <br /> Date February 13, 2003 <br /> APACHE PLASTICS QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 2050 East Fremont Street, Stockton, California <br /> Project Supervisor Larry Beasley <br /> Consulting Co/Contact Person Stratus Environmental, Inc 1 Jay Johnson, R G <br /> Consultant Project No 2005-2050-01 <br /> Primary Agency/Regulatory ID No Lon Duncan 1 San Joaquin County Public Health Service <br /> WORK PERFORMED THIS QUARTER (Fourth 2002) <br /> 1 Groundwater samples were collected from wells MW-2, and MW-4 through MW-12 on December 5, <br /> 2002 <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> 3 Stratus submitted a Site Conceptual Model report (dated September 24, 2002) and a Work Plan <br /> Addendum (dated October 1, 2002) <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 VEW-1, VEW-2, and MW-2 through MW-12 <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(DIPS), tertiary butyl alcohol (TBA), <br /> 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDB) by EPA Method SW8260B The <br /> laboratory will tentatively identify all peaks detected in the EPA Method 82808 analysis <br /> 3 Upon receipt of regulatory approval, Stratus will begin implementing the additional environmental <br /> assessment and well abandonment activities outlined in the Work Plan for Additional Site <br /> Assessment(dated April 9, 2002)and Work Plan Addendum(dated October 1, 2002) <br /> Current Phase of Protect Monitoring <br /> Frequency of Groundwater Sampling All Wells= Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Groundwater Sampling Date December 5,2002 <br /> Is Free Product(FP)Present on Site No <br /> FP Recovered This Quarter NA <br /> p\Apache Plastics%Quarterly reports\2002\Apache_4Q02 DOC 5TKATUS <br />