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TABLE 1 <br /> CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES <br /> QUIK STOP MARKET NO. 132 <br /> 3 X555 WEST HAMMER LANE <br /> Vol <br /> STOCKTON,CALIFORNIA <br /> Ethyl- Total Well Depth to Groundwater <br /> Date TPH-G Benzene Toluene benzene Xylenes MTBE CO2 Elevation Groundwater Elevation <br /> Sampled (ug/!) (ug1L) (ug/L) (ug/L) (ug/L) (ugQ (mg/L) (f1 above MSL) (feet) (ft above MSL) <br /> Well MW-9(Coni'd) <br /> 08!30102 <50 <0.50 <0.50 <0.50 <1.D <0.50 NR 10.53 -7.38 <br /> 11!19!02 <50 <0.50 1.1 <0.50 1.7 1.1 NR 10.89 -7.74 <br /> 031061D3 <50 <0.50 <0.50 <0.50 <1.0 0.97 NR 10.57 -7.42 <br /> Well MW-10 <br /> �l <br /> 08123!01 <50 <0.5 <0,5 <0.5 <0.5 <5 NR 3.16 9.97 -6,81 <br /> � 11/30/01 <50 <l.D <1.0 <1.0 <1.0 <0.50 NR 10.50 -7.34 <br /> 02127!02 <50 c0.50 <0.50 <0,50 <br /> <1.0 <0.50 NR 9.58 -6.42 <br /> 05/31/02 <50 <0.N <0.50 <0.50 <1.0 <0.50 NR 9.56 -6.40 <br /> 08/30/02 <50 <0.50 <0.50 <0.50 <1.0 <0.50 NR 10.51 -7.35 <br /> 11119!02 <50 <0,50 <0.50 <0.50 <1.0 <0.50 NR 10.90 -7.74 <br /> 03/06/03 <50 <0.50 <0.50 <0.50 <1,0 0.60 NR 10.56 - -7.40 <br /> Notes: <br /> Well MW-8 was installed on 11-19-99 and surveyed by Siegfried Engineering Inc.on 12-9-99;MW-2,MW-5,and MW-6 were also surveyed. <br /> 1 Wells MW-9 and MW-10 were installed on August 7,2001 and surveyed by Mormw Surveying on August 29,2001 <br /> 1l-G denotes total petroleum hydrocarbons as gasoline <br /> MTBE denotes methyl-tert-butyl ether;from 12-3-98 MTBE analyses were performed by EPA Method 8260 <br /> NR denotes analysis not requested. NA denotes not available <br /> ug/L.denotes micrograms per liter, mg/L denotes milligrams per liter <br /> denotes not detected above listed detection limit for the method <br /> ft denotes feet <br /> SL denotes mean sea level <br /> 02 denotes carbon dioxide <br /> Due to construction activities,the well MW-8 elevation has been changed,but the well could not be resurveyed prior to this monitoring event <br /> *'Because MW-8 needs to be resurveyed,the groundwater elevation for MW-8 could not be determined. <br /> ***MW-8 was recently paved over by the City of Stockton preventing access to it. ATC was unable to collect a sample from this well <br /> and the groundwater elevation could not be calculated for well MW-8 this quarter <br /> Hydrocarbon reported in the gasoline range does not match the gasoline standard <br /> i <br /> 1 <br /> ' H ,o �Sep(6zM)X2513:(00W)inck'"vW200t,xtjgr�i Page 10 of 10 <br />