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Q9e5of16 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd Tracy CA <br /> Well Depth Groundwater Groundwater Product Ethyl Xyleres <br /> Well Date Elevation to Water Elevaticn Elevation Thickness TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft TOC) (ft MSL) Change(ft) (ft) (ppb) (Ppb) (ppb) (ppb) (ppb) (ppb) mg/L) <br /> ATR 4 1/23/1992 11 16 3767 0 41 1200 300 52 49 72 <br /> (cont) 4/20/1992 11 12 3791 004 _ _ — <br /> 4/21/1992 560 150 <5 36 29 — <br /> 7/8/1992 11 31 3772 590 ISO 21 36 39 <br /> 10/7/1992 11 45 3758 014 _ <br /> 10/8/1992 1 200 240 4 8 62 97 — <br /> 1/18/1993 1045 38 58 <br /> 1/19/1993 1,200 240 5 5 44 g0 <br /> 4/14/1993 1087 38 16 _ — <br /> 4/15/1993 810 160 42 47 63 _ — <br /> 8/31/1993 (a) 1098 100 33 <0 5 6 13 <br /> 10/27/1993 1098 000 200 12 1 2 7 9 16 — <br /> 2/1811994 1031 0 67 960 140 5 73 30 — <br /> 5/20/1994 10 71 — 040 8 100 590 5 9 190 220 — <br /> l OnA 994 11 00 — -029 — t 100 30 1 16 7 3 <br /> 12/16/1994 1061 0 39 1,600 310 2 3 350 200 <br /> 2/28/1995 1068 007 4 600 180 <5 750 100 <br /> 4/26/1995 1094 0215 1 100 19 <4 Ito 8 3 <br /> 7127li 995 11 11 0 17 1 700 12 <2 5 170 8 4 _ — <br /> 10/26/1995 11 18 007 <br /> 10/27/1995 600 7 <1 30 2 <br /> 2/12/1996 1043 6 300 <0 5 <0 5 340 ISO <br /> 4/18/1996 1077 0 34 — 770 <1 0 <1 0 41 1 9 <br /> 7118/199s 1052 — 025 2 600 12 <5 52 <5 560 <br /> 11/15/7996 11 51 099 440 <0 5 <0 5 05 2 2 f40 <br /> 3/14/1997 11 57 006 150 1 5 <0 5 <0 5 <0 5 870 007 <br /> 6/4/1997 NP 1093 064 420 8 7 1 4 12 1 3 54 008 <br /> 8/11/1997 NP 1055 0 38 320 2 4 1 1 <0 5 57 63 <br /> 1111711997 NP 11 20 — 065 420 3,3 1 4 <0 5 076 4 8 <br /> 3130/1998 NP 1038 — 0 82 <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 1 <br /> 6/25/1998 NP 1040 002 — 65 B <0 5 <0 5 <0$ <0 5 <5 0 1 <br /> 9/11/1998 NP 1106 0 66 <50 <0 5 <0 5 <0 5 <0 6 <2 5 0 84 <br /> 1211511996 N P 1075 0 31 <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 1 <br /> 3/1711999 NP 1053 022 <50 <0 5 <0 5 <0 5 <0 5 <5 0 6 7 <br /> 5/14/1999 NP 1097 -044 <50 0 591 <0 5 <0 5 <0 5 $720 2 0 <br /> 9/16/1999 NP 1093 0 04 — <50 <0 5 <0 5 <0 5 <0 5 <5 0 6 8 <br /> 1212211999 NP 1089 004 <50 <0 5 <0 5 <0 5 <0 5 857 1 58 <br /> 2/29/2000 NP 1026 0 63 <50 <0 5 <0 6 <0 6 <0 5 <2 5 31 <br /> 6/7/2000 NP 11 06 080 <50 <0 5 <0 5 <0 5 <0 5 842 <br /> 912512000 NP 11 24 — -018 <50 <0 5 <0 5 <0 5 <0 5 280 070 <br /> 12/29/2000 P 1081 043 <50 0 <0 500 <0$00 <0 500 <0 500 636' 4 5 <br /> 3/27/20Qi P 1064 0 17 <50 0 <0 500 <0 500 <0$00 <0 500 <2 00' 31 <br /> 6/20/2001 P 1084 020 <50 <0 50 <0 50 <0 50 <0 50 <2 0' <br /> 9/1212001 P 1094 010 — <50 <0 50 <0 50 <0 50 <0 50 <2 5 2 4 <br /> 12/19/2001 P 1078 — 016 <50 <0 50 <0 50 <0 50 <0 50 <2 0' 1 59 <br /> 3/14/2002 P 1078 000 <50 <0 50 <0 50 <0 50 <0 50 710' t 29 <br /> 6/26/2002 P 1078 0 00 <50 <0 6 <0 5 <0 5 <0 5 <0 5' 3 5 <br /> 9/11/2002 P 49 03 1092 3911 — <50 <0 5 <0 5 <0 5 <0 5 <0 5' 3 3 <br /> K VA aP AR001020435QWWs A3 QTR 021TQAo 12 3 As <br />