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TABLE
<br /> CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES
<br /> QUIK STOP MARKET NO.132
<br /> f 3555 WEST HAMMER LANE
<br /> STOCKTON,CALIFORNIA
<br /> Ethyl- Total Well Depth to Groundwater
<br /> Date TPH-G Benzene Toluene benzene Xylenes MTBE CO2Elevation Groundwater Elevation
<br /> Sam led u L u IL u 1L u 1L (ug/L u IL m 1L ft above MSL feet ft above MSL
<br /> Well MW-5
<br /> 04/08/91 210 3.4 <0.50 <0.50 2.1 3.38 14.2 -10.82
<br /> 07/31191 1,900 28 8.5 30 7.1 15.27 -11.89
<br /> 09/11/91 1,100 2.6 1.9 18 2.3 15.45 -12.07
<br /> 10/15/91 4,200 <0.50 3.3 24 1.3 15.66 -12.28
<br /> 12/18/91 1,200 .40.50 1.3 1.7 0.6 15.66 -12.28
<br /> 03/18/92 670 <0.50 <0.50 <0.50 <0.50 14.72 -11.34
<br /> 05/05192 610 .40.50 <0.50 <0.50 <0.50 14.76 -11.38
<br /> 06/16/92 650 2.9 <0.50 <0.50 <0.50 15.11 -11.73
<br /> 09122!92 310 <0.50 -4- 0.63 40.50 15.59 -'2.21
<br /> 10/25/92 330 <0.50 1 0.94 0.72 NA NA
<br /> 12121/92 350 <0.50 0.7 0.6 0.7 17.79 -14.41
<br /> 03/17/93 280 <0.50 .40.50 0.6 0.7 12.85 -9.47
<br /> 06118/93 500 1 <0.50 <0.50 <0.50 12.36 -8.98
<br /> 12/17193 <50 <0.50 <0.50 <0.50 <0.50 13.2 -9.82
<br /> 03125/94 <50 <0.50 <0.50 <0.50 <0.50 12.82 -9.44
<br /> 06121/94 <50 <0.50 <0.50 <0.50 <0.50 12.69 -9.31
<br /> 08102/94 53 <0.50 <0.50 <0.50 <0.50 12.85 -9.47
<br /> 09113/94 <50 <0.50 <0.50 <0.50 <0.50 13.14 -9.76
<br /> 12109/94 56 <0.50 <0.50 <0.50 40.50 13.74 -10.36
<br /> 02122/95 <So <0.50 <0.50 <0.50 <0.50 12.18 -8.80
<br /> 03118/95 <50 <0.50 <0.50 <0.50 <0.50 11.37 -7.99
<br /> 05126/95 <50 <0.50 <0.50 <0.50 40.50 NR NR
<br /> 06/22/95 <50 <0.50 <0.50 <D.50 <0.50 11.36 -7.96
<br /> 09126/95 <50 <0.50 <0.50 <0.50 <0.50 790 12.35 -8.97
<br /> 12/21/95 <50 <0.50 <0.50 <D.50 <0.50 750 12.24 -8.86
<br /> 03106/95 <250 <2.50 <2.50 <2.50 <2.50 1,100 670 10,67 -7.29
<br /> 061D4196 <125 <1.2 <1.2 <1.2 <1.2 660 NR 10.25 -6.87
<br /> • 09/17/96 <50 <0.50 <0.50 <0.50 40.50 510 NR 11.2 -7.82
<br /> 12109/96 <50 <0.50 <0.50 .40.50 <0.50 350 NR 11.29 -7.91
<br /> 02/11/97 050 .40.50 <0.50 <0.50 <0.50 340 NR 8.75 -5.37
<br /> 66109/97 <50 <0.50 40.50 <0.50 <0.50 220 NR 9.66 -6.28
<br /> 09103197 <50 <0.50 <0.50 <D.50 <0.50 1,100 NR 3.38 10.34 -6.96
<br /> 12104/97 <50 <0.50 <0.50 <0.50 <0.50 880 NR 10.75 -7.37
<br /> 03110/98 <50 <0,50 <0.50 <0.50 <0.50 1,400 NR 6.95 -3.57
<br /> 06108198 <50 <0.50 <0.50 <0.50 .40.50 1,600 NR 7.76 -4.38
<br /> 09/22198 450 <0,50 <0,50 <D.50 <0.50 2,100 NR 9.25 -5.87
<br /> 12/03/98 <50 <0.50 .40.50 .413.50 <0.50 2,500 NR 9.48 -6.10
<br /> 03117199 450 <0.50 <0.50 <0.50 <0.50 1,970 NR B.84 -5.46
<br /> 06/07199 4,700 <25 <25 <25 <25 2,900 NR 6.40 -5.02
<br /> 09/02/99 1,700 5.0 <2.5 <2.5 <2.5 7,800 NR 9.48 -6.10
<br /> 12/09/99 4,600 <25 32 <25 55 6,300 NR 10.02 -6.64
<br /> 03/27/00 2,500 <12.5 <12.5 <12.5 <12.5 7,000 NR 7.36 -3.98
<br /> 06/15/DD <5000 <50 <50 <50 <50 5,500 NR 8.21 -4.83
<br /> 09/18/00 3.1 D0 <10 <10 <10 <10 2,500 NR 9.39 -6.01
<br /> 11/30100 2,700 27 39 <25 <25 3,400 NR 9.84 -6.46
<br /> 02/23101 2,800 <0.50 <0,50 <O.50 64 3,400 NR 9.75 -6.37
<br /> 05/22/01 1,000 <10 <10 <10 <10 2,006 NR 9,00 -5.62
<br /> 08/23/01 1,600 <10 <10 <10 <10 2,400 NR 10,02 -6.64
<br /> 11130!01 <1000 <20 420 <20 <20 2,806 NR 10.58 -7.20
<br /> 02/27102 <1000 410 410 410 <20 2,200 NR 9.70 -6.32
<br /> 05/31/02 <50O <5.0 <5.0 <5.0 <10 1,500 NR 9.55 -6.17
<br /> 08/30/02 .42500 <25 425 425 <50 2,200 NR 10.35 -6.98
<br /> 11/19/62 <2500 <25 <25 <25 <50 2,100 NR 10.84 -7.46
<br /> 03106/03 1600^ <10 <10 410 <20 1,800 NR 10.58 -7.20
<br /> 05128/03 <1000 <10 <10 <10 <20 2,206 NR 10.39 -7.01
<br /> 09111/03 130DA <10 <10 <1D <20 1,300 NR 10.99 -7.61
<br /> 01!30/04 610A 45.0 <5.0 <5.0 <10 730 NR 1D.54 -7.16
<br /> 03130/04 960A <5.0 <5.0 <5.0 410 1,100 NR 10.03 -6.65
<br /> 06117/04 800A X5.0 <5,0 <5.0 <10 740 NR 10.11 -6.73
<br /> 09130/04 660^" <5.0 <5.0 <5.0 <10 570 NR 11.18 -7.60
<br /> 12/14/04 730A <5.0 <5,0 <5.0 410 311) NR 10.81 -7.43
<br /> 03114105 NR NR NR NR NR 19D NR 9.17 -5.79
<br /> 05!24105 NR NR NR NR NR 410 NR 9.10 -5.72
<br /> 08124105 NR NR NR NR NR 200 NR 9.84 -6.46
<br /> J. 08/24105 NR NR NR NR NR 190 NR micropurge 9.84 -6.46
<br /> 1t 11130105 <50 <0.50 <0.50 <0.50 <1.O 92 NR micropurge 10.68 -7.30
<br /> 03113106 51 <0.50 <0,50 <O.50 .40.50 78 NR mlcropurge 9.01 -5.63
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