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• � y <br /> Tab Pag�"3 of 30 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,CA <br /> Well Depth Product Groundwater Groundwater Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MtBE 00 <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (it,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> 4/5190 1726 -1497 -044 - <br /> 4/19/90 1715 -- -1486 Oil - -- -- - -- <br /> 5/10/90 1747 -- -1518 -032 <br /> 5/24190 1742 -- -1513 005 <br /> 6/5190 1738 -- -1509 004 - <br /> 6/18190 Dry -- -- - - <br /> 7/12/90 1819 -- -1590 - - <br /> 8/16190 Dry -- <br /> 9/1 V90 <br /> -9/17190 1832 -- -1603 -- -- - - - <br /> 9/19190 1832 -- -1603 000 - -- <br /> 10/11/90 Dry - -- - <br /> 12/6/90 Dry -- -- - -- <br /> 2/11/91 1830 -- -1601 -- - - <br /> 2125/91 1826 -- -1597 004 - <br /> 4/23/91 1779 -- -1550 047 - <br /> 7/15/91 Dry -- -- -- <br /> 10/8/91 Dry -- -- <br /> 1/22/91 Dry - - -- -- - <br /> 4/22192 Dry <br /> 7/29/92 Dry <br /> 10/29/92 Dry -- -- -- -- -- - -- - <br /> 1/27/93 1669 -- .1440 57,000 2,700 180 660 1,900 <br /> 4129/93 1493 -- -1264 176 32,000 3,400 140 930 2,500 <br /> 8/5/93 1670 -- -1441 -177 27,000 1,800 69 670 1,400 <br /> 11/10/93 1714 -- -1485 -044 47,000 1,700 <50 740 2,000 <br /> 3121194 1660 -- -1431 054 24,000 1,500 86 620 1,500 <br /> 6/27194 1625 -- -1396 035 19,000 1,500 36 670 1,400 <br /> 9129/94 1704 -- -1475 -079 24,000 1,600 77 630 1,300 <br /> 1218194 1668 -- -1439 036 21,000 2,700 58 890 1,900 <br /> 318195 1420 - -119`1 248 94,000 1,600 130 640 2,600 <br /> 611/95 1268 -- -1039 1 52 58,000 1,900 24 590 2,500 <br /> 9111/95 1501 -- -1272 -233 29,000 1,900 <50 640 1,900 <br /> 1215/95 1522 -- -1293 -021 -- -- - - - <br /> 3/18/96 1040 - -811 482 15,000 480 12 390 660 - <br /> 6/18/96 1105 -- -876 -065 -- -- -- - -- <br /> E 3 9/25/96 1352 -- -1123 -247 7,600 160 <5 160 300 <50 - <br /> (cont) 1214196 1293 -- -1064 069 -- -- - - -- - <br /> 3/19/97 P 837 -- -608 456 4,400 46 6 46 99 02 <br /> 6/5197 P 1006 -- -777 -169 -- -- - - - 02 <br />