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Table 2
<br /> Groundwater Elevation and Analytical Data(ARCO)
<br /> ARCO Service Station#2133
<br /> 2908 West Benjamin Drive
<br /> Stockton,California
<br /> Well Depth Product Groundwater Groundwater Ethyl- Total
<br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene Xylenes MtBE DO
<br /> Number Sampled Notes (ft,MSL) (it,TOC) (1t) (11,MSL) Change(ft) (u911) (uglq (ugll) (ug/1) (ugli) (ug") (mgfL)
<br /> 12/6/1990 77.78 -- -16.52 0.16 - - - -- -- --
<br /> 211211991 17,47 -- -16.21 0.31 7,800 1,100 730 320 3,600 --
<br /> E-10 2!2511991 17.41 - -16.15 0.06 - -- -- -- -- -
<br /> (cant.) 412311991 16.56 - -75.30 0.85 8,200 670 180 200 750 -- --
<br /> 7116191 19.11 - •17,85 -2.55 9,400 850 230 210 1,100 -- --
<br /> 101811991 19.60 -- -18.34 -0.49 8,700 860 150 260 820 -- --
<br /> 11221t992 18.24 -- -16.98 1.36 32,ODO 3,200 800 3,600 3,600 - -
<br /> 4/22/1992 17.14 - -15.88 1.10 26,060 2,800 1,300 880 3,400 -- --
<br /> 7/2911992 18.62 -- -17.36 -1.48 42,000 3,400 1,100 1,400 6,400 -- -
<br /> 10129/1992 18.99 -- -17.73 -0.37 25,000 3,600 700 1,200 4,000 - --
<br /> 1/2711993 15.77 -- -14.51 3.22 31,000 2,500 540 1,100 3,100 - --
<br /> 4l2911993 13.96 - -12.70 1.81 28,000 2,500 640 1,400 4,400 - --
<br /> 81511993 15.52 - -14.26 -1.56 32,000 3,300 630 1,700 5,700 - --
<br /> 1111011993 15.85 - -14.59 -0.33 31,000 2,600 29D 1,500 4,400 - --
<br /> 3/2111994 15.29 - -14.03 D.56 28,000 2,900 290 1,700 4,500 -- -
<br /> 6127/1994 15.10 - -13.84 0.19 25.000 3.000 180 1,900 4,100 -- -
<br /> 912911994 16.11 -- -14.85 -1.01 27.700 3.200 150 1,780 2,900 --
<br /> 121811994 15.71 - -14.45 0.40 18,000 3,300 110 1,700 3,000 -- --
<br /> 378/1995 13,28 -• -12.02 2.43 38,DOD 2,100 260 1,800 4,000 - --
<br /> 611195^ 14.49 2.74 -14.18 0.84 - - -- -- - --
<br /> 9111195^ 15.01 1.31 -12.77 -1.59 - - -- -- -- -- --
<br /> 1275795^ 14.64 0.37 -13.10 -0.34 -- -- -- - --
<br /> 3118/1996 9.55 - -8.29 4.81 370,DD0 7,300 2,200 9,900 62,000 -- -
<br /> 6118/1996 8.87 - -7.61 0.68 40D,000 390 3,600 2,000 16,000 6,200 -
<br /> 9125/1996 12.58 - -11.32 -3.71 28,ODO 2.100 3.900 600 5,100 16.000 -
<br /> 1214!1996 12.05 -10.79 0.53 55,000 3,600 3,900 1,300 9,800 27,000
<br /> 311911997 P 7.37 -6.11 4.68 1,600 39 4.3 5.2 48 1,100 0.1
<br /> 615/1997 NP 8.97 -- -7.71 -1.60 100 2.8 <0.5 <0.5 2.0 61 0.1
<br /> 011911997 NP 10.43 -- -9.17 -1.46 750 18 3.0 3.6 19 1,906 0.1
<br /> 11125/1997 NP 11.61 -- -10.35 -1.18 10,000 1,000 320 200 1,400 46,000 --
<br /> 312211998 P 4.65 -- -3,39 159% 7300 2,000 68 350 260 32,000 5,5
<br /> 612411998 P 6.66 -- -5.40 -2.01 15.000 110 130 12D 660 19,000 1.0
<br /> 911011998 NP 8,32 -- -7,06 •1.66 196 6.86 1.18 1.23 6.17 1,870 --
<br /> 12117l1998 NP 8.42 -- -7,16 -0.10 5,020 1,230 51.6 239 313 17,600 -
<br /> -3110/1999 P 6,21 - 4.95 2.21 1,620 235 14.2 71.9 85.9 3,980 8.2
<br /> 6f22/1999 NP 8.77 -- -7.51 -2.56 160 7.07 0.685 <0.5 <0.5 89.3 3.3
<br /> 9/13/1999 NP 9.81 - -8.55 -1.04 128 9.31 <0.50 <0.50 1.23 299 1.8
<br /> 1211611999 NP 9.45 -- -8.19 0.36 10,800 2,290 60.7 433 515 17,800 1.4
<br /> 3123!2000 P 4.78 - -3.52 4.67 1.520 161 <10.0 45.5 21.2 3,310 1.7
<br /> 6!2112000 P 7.04 - -5.78 -2.26 3,770 43.4 36.7 56.0 286 429 0.1
<br /> 9!1312000 NP 8.79 - -7.53 -1.75 1,130 155 6.62 10.6 47.0 1,030 1.9
<br /> 12/1512000 P 8.25 -- -6.99 0.54 18,200 1,440 82.4 245 424 10,700 0.7
<br /> 3/2/2001 P 6.19 sheen -4.93 2.06 6,830 1,770 <50.0 131 228 19,600 --
<br /> 511012001 P 6.62 - -5.36 -0.43 4,500 87.9 22.9 72,1 354 2,750 -
<br /> 812212001 P 9.05 - -7.79 -2.43 8,800 810 250 360 1,500 13,000 -
<br /> 12/512DO1 P 8.48 - -7.22 0.57 11,000' 2,400 110 580 600 37,000 6.8
<br /> 3112/2/)02 P 6.47 - -5.21 2.01 <20,000 610 <200 <200 450 44,000 0.9
<br /> 6/612002 P 7.35 - -6.09 .0.88 8,400• 200 <50 <50 450 14,000 0,2
<br /> 9124/2002 P 9.10 - -7.84 -1.75 570"' 5,8 Q.5 <2.5 <2.5 780 0,1
<br /> 1211712002 P 7.97 - -6.71 1.13 12,000 620 66 160 <20 8500 --
<br /> 3118/2003 P 7.45 •- -6.19 0.52 1,100 6.5 <5.0 <5.0 45.0 11300 1.1
<br /> 611712003 P 7.49 -- -6.23 -0.04 170 3.7 <1.0 1.6 3.5 290 0.1
<br /> 9124103 a P 9,25 -- -7,99 -1.76 6,200 240 110 300 1,300 71500 1.0
<br /> 1211812003 P 8,89 -- -7.63 0.36 3,300 78 17 54 220 1,100 -
<br /> 3/1712004 P 6.64 -- -5.38 2.25 1,300 <10 <10 <10 <10 770 -
<br /> 612212004 8.54 -7.28 -1,90 11600 21 9 34 160 280 --
<br /> 912112004 9.62 -- -8.36 -1.08 14,000 470 62 330 1,300 3,000 --
<br /> 12128/2004 8.47 - -7.21 1.15 3,500 180 50 110 380 680 0.8
<br /> 31812005 5.60 .4.34 2.87 160 1 <C.50 0.79 1.4 3.a 3.6
<br /> 1:5B P-AR COL21331Ta ble s5gwta ble s2133.xl s
<br /> 17024
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