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0 • • <br /> Table 1 Page 21 of 26 <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 TPN-G Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet {feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mgll <br /> BHD-1 10/11/90 1731 -- -1673 -007 - — -- <br /> (cont) 12!6190 1724 -1666 0 07 -- -- -- -- -- <br /> 2111191 1692 -1634 0 32 6 000 890 60 1,000 360 <br /> 2/25191 16 86 — -1628 0 06 — -- -- -- — <br /> 4123191 1599 1541 087 3 300 240 48 440 130 <br /> 7116191 1800 -- 1742 -201 7,000 420 420 400 830 <br /> 1418191 1850 -1792 -0 50 3,000 220 <40 210 15 <br /> 1122192 1712 -- 1654 1 38 4 600 200 240 <10 260 — -- <br /> 4122192 1639 -1581 073 3 000 130 6 7 200 120 <br /> 7129192 1793 -1735 154 8 100 260 21 600 510 <br /> 10/29/92 1835 1777 -042 1 800 80 <2 5 110 17 <br /> 1/27M 1527 -1469 3 08 6 700 270 19 790 300 <br /> 4129193 1336 -1278 191 7 000 340 <20 610 460 <br /> 815193 1485 1427 -1 49 10 000 280 31 930 950 <br /> 11110193 1523 1465 0 38 10 000 220 11 570 420 <br /> 3121194 1436 1378 0 87 8 600 83 14 480 360 <br /> 6127194 1430 1372 006 9 600 110 32 490 420 <br /> 9/29194 1546 1488 -1 16 7200 170 12 460 340 <br /> 1218194 1499 -1441 047 8,200 160 14 560 640 -- — <br /> 318195 1281 -1223 218 6 000 84 6 2 300 97 -- <br /> 611/95 11 29 -1071 152 7,100 97 <5 370 250 -- — <br /> 9/11195 1321 -1263 -192 5,600 110 6 340 270 — <br /> 12/5195 1370 - -1312 -0 49 9,200 74 <10 470 410 -- <br /> 3118196 938 -880 432 4,200 99 28 360 320 — - <br /> 6118196 9 50 -892 -012 5,500 82 <10 430 300 <100 <br /> 9125196 11 80 - 11 22 -230 4,600 75 5 5 280 160 <50 <br /> 12!4!96 11 50 -1092 030 4,500 83 11 350 220 <50 <br /> 3119197 P 702 -- -6 44 4 48 2,300 54 <10 190 100 -- 009 <br /> 6/5197 NP 838 -7 80 -1 36 3,500 39 3 76 12 170 015 <br /> 8119197 NP 998 -940 -160 440 7 9 0 94 <0 5 <06 360 017 <br /> 11/25197 NP 1042 - -984 -0 44 1 300 28 085 7 9 2 8 220 -- <br /> 3/20198 P 4 45 - -387 5 97 490 34 3 37 24 210 5 4 <br /> 6124198 P 5 92 - -534 -147 5,500 37 <10 170 46 580 3 <br /> 9110198 NP 812 — -7 54 -2 20 349 319 <0 500 0 542 <0 500 567 NO <br /> 12117198 P 770 — -712 042 1,000 25 2 <10 109 36 8 627 -- <br /> 1 <br /> 7G60M19-01/GW Tables <br /> I <br />