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Tab e 1 PAR of 31
<br /> Groundwater Elevation and Analytical Data
<br /> ARCO Service Station#2133
<br /> 2908 Benjamin Holt Dr.,Stockton,California
<br /> Well Depth Product Groundwater Groundwater Total
<br /> Date Elevation to Water thickness, Elevation Elevation change TPH-G Benzene Toluene Ethylbenzene Xylenes MtBE DO
<br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/l
<br /> E-10 7116191 19.11 -17.85 -2.55 9,400 850 230 210 1,100 -
<br /> (cant.) 1018191 19.60 -18.34 -0.49 8,700 860 150 260 820
<br /> 1122192 18.24 -16.98 1.36 32,000 3,200 800 3,600 3,600
<br /> 4122192 17.14 - -15.88 1.10 26,000 2,800 1,300 880 3,400
<br /> 7129192 18.62 -17.36 -1.48 42,000 3,400 1,100 1,400 6,400 -
<br /> 10/29/92 18.99 -17.73 -0.37 25,000 3,600 700 1,200 4,000
<br /> 1127193 15.77 - -14.51 3.22 31,000 2,500 540 1,100 3,100
<br /> 4/29/93 13.96 -- -12.70 1.81 28,000 2,500 640 1,400 4,400 --
<br /> 815193 15.52 - -14.26 -1.56 32,000 3,300 630 1,700 5,700 --
<br /> 11/10/93 15.85 -14.59 -0.33 31,000 2,600 290 1,500 4,400 -
<br /> 3121/94 15.29 -- -14.03 0.56 28,000 2,900 290 1,700 4,500 -
<br /> 6/27194 15.10 -- -13.84 0.19 25,000 3,000 180 1,900 4,100
<br /> 9/29/94 16.11 -14.85 -1.01 27,700 3,200 150 1,780 2,900
<br /> 1218194 15.71 - -14.45 0.40 18,000 3,300 110 1,700 3,000 -
<br /> 3/8195 13.28 -- -12.02 2.43 38,000 2,100 260 1,800 4,000 --
<br /> 6/1/95 14.49 2.74 -13.23 -1.21 -- -- -- _- --
<br /> 9111195 15.01 1.31 -13.75 -0.52 -- - --
<br /> 12/5195 14.64 0.37 -13.38 0.37 -- -- -- -- --
<br /> 3118196 9.55 -- -8.29 5.09 370,000 7,300 2,200 9,900 62,000 --
<br /> 6/18/96 8.87 -7.61 0.68 400,000 390 3,600 2,000 16,000 6,200
<br /> 9/25/96 12.58 -11.32 -3.71 28,000 2,100 3,900 600 5,100 16,000
<br /> 12/4/96 12.05 -10.79 0.53 55,000 3,600 3,900 1,300 9,800 27,000
<br /> 3119197 P 7.37 -6.11 4.68 1,600 39 4.3 5.2 48 1,100 0.1
<br /> 6/5197 N P 8.97 -7.71 -1.60 100 2.6 <0.5 <0.5 2.0 61 0.1
<br /> 8/19197 NP 10.43 -9.17 -1.46 750 18 3.0 3.6 19 1,900 0.1
<br /> 11/25/97 NP 11.61 -10.35 -1.18 10,000 1,000 320 200 1,400 46,000 --
<br /> 3/20/98 P 4.65 -- -3.39 6.96 7,300 2,000 68 350 260 32,000 5.5
<br /> 6124198 P 6.66 -5.40 -2.01 15,000 110 130 120 660 19,000 1.0
<br /> 9110/98 NP 8.32 -7.06 -1.66 196 6.86 1.18 1.23 6.17 1,870 --
<br /> 12/17/98 NP 8.42 -7.16 -0.10 5,020 1,230 51.6 239 313 17,600 --
<br /> 3110199 P 6.21 -4.95 2.21 1,620 235 14.2 71.9 85.9 3,980 8.2
<br /> 6122199 NP 8.77 -7.51 -2.56 160 7.07 0.685 X0.5 <0.5 89.3 3.3
<br /> 9113/99 NP 9.81 -8.55 -1.04 128 9.31 <0.50 <0.50 1.23 299 1.8
<br /> 12/16/99 NP 9.45 -8.19 0.36 10,800 2,290 60.7 433 515 17,800 1.4
<br /> 3/23100 P 4.78 - -3.52 4.67 1,520 161 <10.0 45.5 21.2 3,310 1.7
<br /> 6121/00 P 7.04 -5.78 -2.26 3,770 43.4 36.7 56.0 286 429 0.06
<br /> 9/13100 NP 8.79 -7.53 -1.75 1,130 155 6.62 10.6 47.0 1,030 1.85
<br /> 12/15/00 P 8.25 - -6.99 0.54 18,200 1,440 82.4 245 424 10,700 0.70
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