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Table 1 Pagloof 28 Groundwater Elevation and Analytical Data ARCO Service Station#2133 2908 Benjamin Hoft Dr,Stockton,California Well Depth Product Groundwater Groundwater Total Date Elevation to Water thickness, Elevation Elevation change TPH-G Benzene Toluene Ethylbenzene Xylenes MTBE Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) E-9 2112191 1780 -- -1624 0 31 18,000 2,600 130 610 4,700 -- (cont) 2125191 1876 — -1720 -0 96 -- -- -- -- — — 4/23191 1689 -- -1533 1 87 -- -- — — - - 7115191 Dry — -- -- — -- -- — -- 1018/91 Dry — _ 1122192 18 24 -- -1668 — — — — -- — — 4122192 1745 -- -1589 079 3,600 170 10 50 120 -- 7129192 Dry -- _ — -- -- -- _ -- .. 10/29/92 1719 -- -1563 -- 8,900 480 32 440 1,100 1127193 1610 -- -1454 109 12,000 390 25 310 730 -- 4129193 1419 — -12 63 1 91 12,000 270 <98 150 380 — 8/5193 15 B3 — -1427 -1 64 16,000 370 22 220 460 -- 11/10/93 1618 — -1462 -035 12,000 210 21 200 390 -- 3121194 1551 — -1395 067 6,300 170 24 200 320 -- 6127194 1534 — -1378 017 10,000 780 18 660 980 — 9/29/94 1636 -- -1480 -1 02 8,800 430 14 470 630 — 12/8194 1597 -1441 039 7,800 450 20 610 810 -- 318195 1354 — -1198 2 43 8,600 100 <20 230 260 611195 1202 -- -1046 1 52 24 000 550 38 870 2000 9111195 4 22 -1266 -220 150,000 1,700 7,600 3 000 14,000 -- 1215/95 1458 -1302 -0 36 45,000 960 1,500 1,000 3,200 3118196 962 - -8 06 4 96 8 800 290 130 240 490 — 6116196 1035 — -879 -073 1,600 110 32 69 91 110 9125196 1282 -- -11 26 -2 47 2,800 130 <5 180 46 83 1214196 1220 - -1064 0 62 2,800 290 32 250 80 560 3119197 NP 772 -616 4 48 <50 <0 5 <0 5 <0 5 <0 5 <5 615197 NP 9 39 -783 167 <50 <0 5 <0 5 <0 5 <05 8 5 8119197 NP 1084 -928 -1 45 <50 <0 5 <0 5 <0 5 <0 5 <5 11/25197 NP 11 10 — -954 -0 26 <50 <05 <05 <05 <0 5 <5 3119198 P 480 -324 6 30 <50 <05 <0 5 <0 5 <0 5 320 6124198 NP 676 - -620 -196 <60 <0 5 <0 5 <0 5 <0 6 <5 7G600-019-011GW Tables