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0 Pa e�5of 28 Table 1 9 Groundwater Elevation and Analytical Data _ ARCO Service Station#2133 2908 Benjamin Halt 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) BHD-1 2111191 1692 — -1634 032 6,000 890 60 1,000 360 — (cont) 2!25191 1686 -- -1628 006 — — — — -- 4/23191 1599 — -15 41 087 3,300 240 4 8 440 130 -- 7116191 1800 — -1742 -201 7,000 420 420 400 830 — 10/8191 1850 — -1792 -0 50 3,000 220 <4 0 210 15 — 1!22192 1712 -- -1654 138 4,600 200 240 <10 260 — 4122192 1639 — -1581 073 3,000 130 67 200 120 — 7129/92 1793 -- -1735 -1 54 8,100 260 21 600 510 — 10/29/92 1835 — -1777 -042 1,800 80 <2 5 110 17 — 1/27/93 1527 — -1469 308 6,700 270 19 790 300 — 4/29193 1336 — -1278 1 91 7,000 340 <20 610 460 -- 815193 1485 — -1427 -149 10,000 280 31 930 950 — 11/10/93 1523 -- .1465 -038 10,000 220 11 570 420 3121/94 1436 -- -1378 087 8,600 83 14 480 360 — 6127/94 1430 — -1372 006 9,600 110 32 490 420 — 9129194 1546 — -1488 -1 16 7,200 170 12 460 340 -- 12l8194 1499 — -1441 0 47 8,200 160 14 560 640 -- 318/95 1281 -- -1223 218 6,000 84 6 2 300 97 — 611195 11 29 — -1071 152 7,100 97 <5 370 250 -- 9111l95 1321 — -1263 -1 92 5,600 110 6 340 270 — 1215195 1370 -1312 -0 49 9,200 74 <10 470 410 — 3/18/96 938 — -880 432 4,200 99 28 360 320 — i 6/18/96 9 50 — -892 -012 5,500 82 <10 430 300 <100 9125196 1180 — -1122 -230 4,600 75 5 5 280 160 <50 1214196 1150 — -1092 030 4,500 83 11 350 220 <50 3119197 P 702 — -644 448 2,300 54 00 190 100 — 6/5197 NP 838 — -780 -136 3,500 39 3 76 12 170 8119197 NP 998 — -9 40 -160 440 7 9 094 <05 e05 360 11125/97 N P 1042 -- -984 -044 1,300 28 0 85 7 9 28 220 3120/98 P 445 -387 597 490 34 3 37 24 2]0 6124198 P 692 — -634 -147 5,500 37 <10 170 46 680 7G600-Oi9-01/GW Tables