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Tat Pap 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 /> BHD-1 114190 1570 -- -1512 -- <br /> (cont) 2/1190 1542 - -1484 028 - <br /> 2/15/90 1539 -- -1481 003 - <br /> 2122190 1622 -- -1564 -083 -- - - <br /> 3/8/90 1517 -1459 105 1,250 50 1,870 1,360 <br /> 4/5190 1538 -- -1480 -021 - - <br /> 4/19/90 1558 - -1500 -020 - <br /> 5/10190 1592 -- -1534 -034 - - <br /> 5/24190 1589 - -1531 003 - <br /> 6/5/90 -- -- -- -- -- - - - <br /> 6/18/90 1637 -1579 - 1180 40 2070 860 <br /> l 7112/90 1660 -1602 -023 - <br /> 8/16/90 1789 -1731 -129 - - - <br /> 9/17/90 1724 -- -1666 065 - <br /> 9/18/90 1724 - -1666 000 2,000 110 9 30 650 <br /> 10/11/90 1731 -1673 -007 -- - <br /> 12/6/90 1724 -- -1666 007 - - - <br /> 2/11/91 1692 -1634 032 6,000 890 60 1,000 360 <br /> 2125191 1686 - -1628 006 -- - -- - - <br /> 4/23/91 1599 - -1541 087 3,300 240 48 440 130 <br /> 7/16/91 1800 -- -1742 -201 7,000 420 420 400 830 <br /> 10/8191 1850 -- -1792 -050 3,000 220 <4 0 210 15 <br /> 1/22/92 1712 - 1654 138 4,600 200 240 <10 260 <br /> 4122/92 1639 -1581 073 3,000 130 67 200 120 <br /> 7129/92 1793 -- -1735 -154 8,100 260 21 600 510 <br /> 10/29/92 1835 -- -1777 -042 1,800 80 <2 5 110 17 <br /> 1/27/93 1527 -1469 308 6,700 270 19 790 300 <br /> 4/29193 1336 -- -1278 191 7,000 340 <20 610 460 <br /> 815193 1485 -- -1427 -149 10,000 280 31 930 950 <br /> 11/10/93 1523 -- -1465 -038 10,000 220 11 570 420 <br /> 3/21/94 1436 -- -1378 087 8,600 83 14 480 360 <br /> 6/27/94 1430 -1372 006 9,600 110 32 490 420 <br /> 9129/94 1546 -1488 -116 7,200 170 12 460 340 <br /> 12/8/94 1499 -1441 047 8,200 160 14 560 640 <br /> 3/8/95 U 81 -- -1223 218 6,000 84 62 300 97 <br /> 611195 1129 -1071 152 7,100 97 <5 370 250 <br /> 9/11/95 1321 -1263 -192 5,600 110 6 340 270 <br /> 1215/95 1370 - -1312 -049 9,200 74 <10 470 410 <br />