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. Date Janua 10, 2006 <br /> APACHE PLASTICS QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 2050 East Fremont Street, Stockton, California <br /> Consulting Co/Contact Person Stratus Environmental, Inc 1 Jay Johnson, P G <br /> Consultant Project No 2005-2050-01 <br /> Primary Agency/Regulatory ID No Lori Duncan, San Joaquin County Environmental Health Department/ <br /> 2313 <br /> WORK PERFORMED THIS QUARTER (Fourth 2005) <br /> 1 Stratus measured groundwater elevations and collected groundwater samples from wells VEW-1, <br /> VEW-2, MW-2, MW-4 through MW-11, and MWA5 through MWA8 on November 22, 2005 Well <br /> MW-3 remains obstructed and was not monitored or sampled <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> WORK PROPOSED FOR NEXT QUARTER (First 2006) <br /> 1 The next sampling event is tentatively scheduled for February 2006 Groundwater samples will be <br /> collected for laboratory analysis from wells VEW-1, VEW-2, MW-2, MW-4 through MW-11, and <br /> MW-15 through MW-18 <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 tent-butyl ether (MTBE), tertiary amyl methyl <br /> ether(TAME), ethyl tertiary butyl ether (ETBE), di-Isopropyl ether(DIPE), tertiary butyl alcohol (TBA), <br /> 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDS) by EPA Method SW8260B The <br /> laboratory will attempt to Identify all peaks detected in the EPA Method 8260B analysis <br /> 3 Offsite well installation, re-construction, and destruction activities on the south side of East Fremont <br /> Street will be initiated once an encroachment permit has been obtained from the City of Stockton <br /> Current Phase of Project Assessment 1 Monitoring <br /> Frequency of Groundwater Sampling All Wells=Quarterly <br /> Frequency of Groundwater Monitoring Quarter) <br /> Groundwater Sampling Date November 22,2005 <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(shallow wells) 48 91 to 51 10 feet below top of well casing _ <br /> Groundwater Flow Direction/Gradient(shallow wells) East 10 0006 ft/ft <br /> Depth to Groundwater(mid-depth wells) 49 60 to 50 12 feet below top of well casin <br /> •� Groundwater Flow Direction/Gradient (mid-depth wells) NA <br /> K 1Apache Plastics\Quarterly reports120051Apache 4Q05 DOC 5TRATU5 <br />