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Tab P*of 18 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy,California <br /> Floating <br /> Well Depth product Groundwater Groundwater Total <br /> Date Elevation to Water thickness Bevadon Elevation Change TPHg Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/1) <br /> 01/19/93 -- -- -- 1,200 240 55 44 90 <br /> ATR-4 04/14/93 1087 - 3816 -- -- -- -- - <br /> (cont) 04/15/93 -- -- -- — 810 160 42 47 63 <br /> 08/31/93 (C) 1098 - - - 100 33 <0 5 6 13 - <br /> 10/27/93 1098 •- -- -- 200 12 12 79 16 <br /> 02/18/94 1031 -- -- - 950 140 5 73 30 <br /> 05/20/94 1071 -- -- 8,100 590 59 190 220 <br /> 10/07/94 1100 -- -- -- 1,100 30 1 16 73 <br /> 12/16!94 1061 -- - 1,600 310 23 350 200 <br /> 02/28/95 1068 -- -- -- 4,600 180 <5 750 100 - <br /> 04/26/95 1094 -- -- 1,100 19 <1 110 83 <br /> 07/27/95 11 11 -- -- - 1,700 12 <2 5 170 84 <br /> 10/26J95 1118 - -- -- -- - -- <br /> 10/27/95 -- -- -- 600 7 <1 30 2 <br /> 02/12/96 1043 - -- 6,300 <0 5 <0 5 340 150 <br /> 04/18/96 1077 -- -- 770 <1 0 <1 0 41 19 - <br /> 07/18196 1052 -- -- -- 2,600 12 <5 52 <5 560 <br /> 11/15196 1151 - -- -- 440 <0 5 <0 5 08 22 140 <br /> 03/14/97 1157 -- -- 150 15 <0 5 <0 5 <0 5 870 007 <br /> 06104/97 NP 1093 -- -- -- 420 87 14 1 2 1 3 54 008 <br /> 08/11/97 NP 1055 -- -- 320 24 1 1 <0 5 157 63 - <br /> i 1/V/97 NP 1120 -- -- 420 3,3 14 <0 5 076 48 <br /> 03/30/98 NP 1038 -- -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 1 <br /> 06/25/98 NP 1040 -- -- -- 668 <0 5 <0 5 <0 5 <0 5 <5 0 1 <br /> 09/11/98 NP 1106 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 084 <br /> 12/15/98 NP 1075 -- -- -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 1 <br /> 03/17/99 NP 1053 - -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 67 <br /> 05/14/99 NP 1097 -- -- -- <50 0 591 <0 5 <0 5 <0 5 8,720 20 <br /> 09/16/99 NP 1093 -- - -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 68 <br /> 12/22/99 NP 1089 - - -- <50 <0 5 <0 5 <0 5 <0 5 857 158 <br /> 02/29/00 NP 1026 -- - <50 <0 5 <0 5 <0 5 <0 5 <2 5 31 <br /> 06/07/00 NP 1106 - -- <50 <0 5 <0 5 <0 5 <0 5 842 - <br /> 09/25/00 NP 1124 — — <50 <0 5 <0 5 <0 5 <0 5 280 070 <br />