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<br /> TABLE 1
<br /> CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES
<br /> QUIK STOP MARKET NO.132
<br /> 2555 WEST HAMMER LANE
<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 (uglL) (ug1L) (uglL) (ug(L) (ugfL) (ug1L) (mg/L) (ft above MSL) (feet) (ft above MSL)
<br /> Well MW-S
<br /> 04/08191 210 3.4 <0.50 <0.50 2.1 3.38 1420 -10-82
<br /> 07/31/91 t,900 28 8.5 30 7.1 15.27 -11.89
<br /> 09/11/91 1,100 2.6 t.9 18 2-3 15.45 -12.07
<br /> 10115/91 4,200 <0.50 3,3 24 0 15-66 -12.28
<br /> 1211819] 1,200 <0.50 L3 1,7 0.6 15-66 -12.28
<br /> 03!18192 670 <0.50 <0.50 <0.50 <D.50 14-72 -11.34
<br /> 05/05/92 610 <0.50 <0-50 40.50 <D.50 14-76 -11.38
<br /> 06!16192 650 2.9 <0.50 <0 so <0.50 15,11 -11.73
<br /> 09/22/12 310 <0.50 <0.50 0,63 <0.50 15,59 -12.21
<br /> 10/26/92 330 <0 50 I 0.94 0.72 NA NA
<br /> 12/21/92 350 <0,50 0.7 0.6 0.7 17,79 -14,41
<br /> 03/17193 280 <0,50 <0 so 0.6 0.7 12.85 -9.47
<br /> t 06/18/93 500 I IC50 <0,50 <0.50 I2.36 -8.98
<br /> 12/7193 <50 <0-50 <0.50 <0.50 <0.50 13.2 -9.82
<br /> 03!25/94 <50 <0,50 <0.50 <D.50 <0,50 12.82 -9.44
<br /> 06/21/94 <50 <0.50 <0.50 <0.50 <0 50 12.69 -9.31
<br /> 08/02/94 53 <0.50 <0.50 <0.50 <0.50 12.85 -9.47
<br /> 09/13/94 <50 <0.50 <0.50 <0-50 <0.50 13.14 -9.76
<br /> 12/09/94 56 <0.50 <0.50 <0.50 <D,50 1314 -10.36
<br /> 02122/95 <50 <0.50 <0.50 40.50 <0.50 12.18 -8.8
<br /> 03116/95 <50 <0.50 <0-50 <0.50 <D.50 ]1.37 -7.99
<br /> 05/26/95 <50 <0.50 <0-50 <0.50 <D.50 NR NR
<br /> 06/22/95 <50 <0.50 <0,50 <0.50 <0.so 1136 -7.98
<br /> 09/26/95 <50 <0.50 <0.50 <0.50 <0.50 790 12,35 -8.97
<br /> 12/21/95 <50 <0.50 <0,50 <0.50 <0.50 750 12,24 -8,86
<br /> 03/06/96 <250 <2 50 <150 <2.50 <2.50 1,100 670 10.67 -7.29
<br /> 06/04196 <125 <12 <I,2 <1.2 Q.2 660 NR 1025 -6,87
<br /> ' 09/17196 <50 <Q5 <0,5 <15 <0.5 $10 NR 112 -712
<br /> 12/09196 <50 <0,5 <0.5 <0,5 <05 350 NR 11.7.9 -7.91
<br /> 02/11/97 <50 <0,$ <05 <0,5 <<5 340 NR 8.75 4-37
<br /> ' 06/09/97 <50 <05 <D.5 <0.5 <0.5 220 NR 9.66 -6.28
<br /> 09/03/97 <50 <0.5 <D5 <05 <0.5 1,100 NR 10.34 -6.96
<br /> 12/04/97 <50 <0.5 <0 5 <0,5 <0.5 880 NR 10.75 -7.37
<br /> 03)10/98 <50 <0.5 <05 <0,5 <0.5 1,400 NR 6.95 -3.57
<br /> 06/08/98 <50 <0.5 <0.5 <05 <0,5 1,600 NR 7,76 -4.38
<br /> 09127!98 <50 <0.5 <0.5 <0.5 <0,5 2,100 NR 9,25 -5.87
<br /> 12/03/98 <50 <0.5 <0.5 <0.5 <0,5 2,500 NR 9,48 -6.10
<br /> 03/17/99 <50 <0.5 <0.5 <0.5 <0,5 1,970 NR 8,84 -5.46
<br /> ' 06/07/99 4,700 <25 <25 <25 <25 2,900 NR 8.40 -5.02
<br /> 09/02M 1,700 5-0 <2.5 <2.5 Q.5 7,800 NR 9.48 -6,10
<br /> 12!09/99 4,600 Q5 32 <25 55 6,300 NR 10,02 -6.64
<br /> 03/27100 2,500 <12.5 <12.5 <12.5 <12.5 7,000 NR 7.36 -3.98
<br /> ' 06/15100 <5000 <50 <50 <50 <50 5,500 NR 8.21 -4,83
<br /> 09/18100 3,100 <10 <10 <10 <10 2,500 NR 9.39 -6.01
<br /> 1 1/30100 2,700 27 39 <25 Q5 3.400 NR 9.84 -6.46
<br /> ' 02/23/01 2,800 <D.5 <0.5 <0.5 64 3,400 NR 9.75 -6.37
<br /> 05/22/01 1,000 <10 <10 <10 <10 2.000 NR 9.00 -5.62
<br /> 08/23701 1,600 <10 <10 <10 <10 2,400 NR 10.02 -6.64
<br /> 11/30/01 <1000 <0 CO <20 <2D 2,800 NR 10.58 -720
<br /> 02/27,02 1 <1000 <11) 110 <10 <<0 2.200 NR 1 9.70 -6.32
<br /> r.rc,. c sur 02W)us�❑1-1 U 10k,i,nn.an:ri,11--i Page 5 of 8
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