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w <br /> TABLE <br /> CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES <br /> QUIK STOP MARKET NO.132 <br /> \ 3555 WEST HAMMER LANE <br /> STOCKTON,CALIFORNIA <br /> Ethyl- Total Wei] Depth to Groundwater <br /> Date FTPH- Benzene Toluene benzene Xylenes MTBE CO2 Elevation Groundwater ElevationSam fed <br /> (u ) (u L) (m /L) (ft above MSL) {feet) (ft above MSL) <br /> We11 MW-10 <br /> M02/2'/102 <50 <br /> <0.5 <0.5 <0.5 <0.5 <5 NR 3.16 9.97 6.81 <br /> <1.0 <1.0 <1.0 <I.0 <0.50 NR 10.50 <br /> <030 <0.50 <0.50 <l.0 <0.50 NR -7.34 <br /> 9.58 -6.42 <br /> <0.50 <0.50 <0.50 <1.0 <0.50 NR 9.56 -6,40 <br /> <0.50 <0.50 <0.50 <1.0 <0.50 NR 10.51 1 -7.35 <br /> 11/19/02 <50 <0.50 <0.50 <030 <1.0 <0.50 NR 10.90 -7.74 <br /> 03/06/03 <50 <0.50 <30 <0.50 <LO 0.60 NR 10.56 -7.40 <br /> 05/28/03 <50 <0,50 <0.50 <0.50 <1.0 0.96 NR 10.38 -7.22 <br /> 09/11/03 <50 <0.50 <0.50 <0.50 <1.0 0.68 NR 11.07 -7.91 <br /> 01/30/04 <50 <0.50 <0.50 <0.50 <1.0 3.10 NR 10.56 -7.40 <br /> 03/30/04 NR NR NR NR NR 3.40 NR 10.07 -6.91 <br /> 06/17/04 NR NR NR NR NR 1.70 NR <br /> 10.34 -7.18 <br /> 09/30/04 NR NR NR NR NR 0.80 NR 11.1 -7.94 <br /> 12/14/04 NR NR NR NR NR 0.63 NR 11.91 -8.75 <br /> LM 03/14/05 NR NR NR NR NR <.50 NR 932 -6.16 <br /> 05/24/05 1 NR I NR I NR NR NR <.50 NR 9.13 -5.97 <br /> Notes: ` <br /> In Bold denotes results from recent sampling event <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 /> Wells MW-9 and MW-10 were installed on August 7,2001 and surveyed by Morrow Surveying on August 29,2001 <br /> TAH-G denotes total petroleum hydrocarbons as gasoline <br /> MTBE denotes methyl-tent-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 /> It denotes feet <br /> MSL denotes mean sea level <br /> ttr CO2 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 /> %W 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 /> ^^Sample contains descrete peak in gasoline range <br /> -Quantitv of unknown h drocarbon s in sample based on gasoline. <br /> t* <br /> hr <br /> -%./ <br /> 4.. <br /> Page 10 of 10 <br />