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• Date July 22, 2003 <br /> APACHE PLASTICS QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 2050 East Fremont Street, Stockton, California <br /> Consulting Co/Contact Person Stratus Environmental, Inc /Jay Johnson, R G <br /> Consultant Project No 2005-2050-01 <br /> Primary Agency/Regulatory ID No Lori Duncan 1 San Joaquin County Public Health Service 12313 <br /> WORK PERFORMED THIS QUARTER (Second 2003) <br /> 1 Stratus measured groundwater elevations and collected groundwater samples from wells MW-4, <br /> MW-5, MW-7, MW-9 through MW-12, VEW-1, and VEW-2 on May 28, 2003 Wells MW-2, MW-6, <br /> and MW-8 were covered by vehicles and could not be sampled <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> WORK PROPOSED FOR NEXT QUARTER (Third 2003) <br /> 1 The next sampling event is tentatively scheduled for August 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 (ETRE), di-isopropyl ether (DIPE), tertiary butyl alcohol <br /> (TBA), 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDB) by EPA Method SW8260B <br /> The laboratory will attempt to identify all peaks detected in the EPA Method 82608 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 Project Assessment <br /> Frequency of Groundwater Sampling All Wells = Quarterly <br /> Frequency of Groundwater Monitoring Quarter) <br /> Groundwater Sampling Date May 28, 2003 <br /> Is Free Product(FP) Present on Site No <br /> FP Recovered This Quarter NA <br /> Cumulative FP Recovered to Date NA <br /> Depth to Groundwater (upper zone) 47 76 to 49 88 feet below top of well casing <br /> Depth to Groundwater klower zone) 48 09 to 51 98 feet below top of well casing <br /> Groundwater Flow Direction/Gradient (upper zone) Southeast/0 012 ft/ft <br /> Groundwater Flow Direction/Gradient (lower zone) Southeast/0 014 ft/ft <br /> P 1Apache PlasticslQuarterly reporrs120031Apache_2Q03 DOC 5TRA TU5 <br />