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iTab Pao 28 Groundwater Elenation3nd Analytical Data ARCO Service Station#2133 2908 Benkamin Holt Dr,Stockton,California Well Depth Product Groundwater Groundwater Total Date Elevation to Water thickness, Elevation Elevation change TPH-G Benzene Toluene Ethylbenzene Xylenes MTBE DO Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mgA E3 5110M 1747 - -1518 -032 (cont) 5/24190 1742 - -1513 005 6/5190 1738 - -1509 004 - ~ 6/18/90 Dry - _ 7112190 1819 -- -1590 - - - - - 8116/90 Dry -- -- - 9117190 1832 - -1603 -- - - -- - ~ 9119190 1832 -- -1603 000 10/11/90 Dry - - - 1216190 Dry - - 2111191 1830 - -1601 - - 2125M 1826 - -1597 004 4123191 1779 - -1550 047 7115191 Dry - - - 10/8/91 Dry - 1122191 Dry _ 4122192 Dry ~ - 7129/92 Dry - - -- - 10129l92 Dry - -- - _ - - 1127193 16 69 - -1440 -- 57,000 2,700 180 660 1,900 - - 4/29/93 1493 - -12 64 176 32,000 3,400 140 930 2 500 - - 815193 1670 - -1441 -177 27,000 1,8D0 69 670 1,400 ~ - 11110/93 1714 - -14 85 -0 44 47,000 1,700 <50 740 2,000 - -- 3121194 1660 -- -1431 054 24,000 1,500 86 620 1,500 - -- 6127194 1625 - -13 96 0 35 19,000 1,500 36 670 1 400 - - 9129/94 17 04 - -1475 -079 24,000 1,600 77 630 1,300 -- -- 12/8194 1668 - -1439 036 21,000 2,700 58 890 1,900 - - 318195 1420 - -11 91 2 48 94,000 1,600 130 640 2,600 - - 611195 1268 - -1039 '152 58,000 1,900 24 590 2,500 - -- 9111/95 1501 - -1272 -2 33 29,000 1,900 <50 640 1,900 - - 1215/95 1522 - -1293 -021 -- - - -- 3/18/96 1040 - -811 4 82 15,000 480 12 390 660 - -- 6118196 1105 -- -876 -0 65 -- ~ - - - - 9!25196 1352 -- -1123 -247 7,600 160 <5 160 300 <50 -- 12/4/96 1293 - -1064 0 59 - - -- - _ _ _ 3/19/97 P 837 - -608 4 56 4,400 46 6 46 99 - 02 615197 P 1006 - -777 -169 - - - - -- - 0 2 J 8119197 P 1153 - -924 -147 3,900 50 10 41 28 <50 01 1 077 41727 006/GW Tables