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• J <br /> Page 2 of 17 <br /> r <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard Tracy,CA <br /> Well Depth Groundwater Groundwater Product Ethyl Xylenes <br /> Wetl Date Efevalion to Water Elevation Elevation Thickness TPHg Benzene Toluene benzene (total) MtBE 00 <br /> Number Sampled (tt,MSL) (ft TOG (h MSL) Change(ft) (tt) u /L) (ug/L) (u /L) (u /L) (ug/L) (ug/L) (mg/L) <br /> ATR 1 12/22/1999 1319 37 39 017 — -- 1 77 <br /> (cont) 2/29/2000 NP 1245 3613 074 <50 <0 5 <0 5 <0 5 <0 5 <25 490 <br /> 6!7/2000 NP 1518 3740 0 73 — -- — — — - <br /> 9/25/2000 NP 1339 3719 0 21 — <50 <05 <0 5 <0 5 255 <2 5 030 <br /> 17/29/2000 1299 3759 0 40 — — 5 3 <br /> 3/27/2001 Well inaccessible <br /> 6/20/2001 1301 3757 002 — -- -- <br /> 9/12/2001 Well inaccessible <br /> 12/19/2001 Well Inaccessible <br /> 3/14/2002 Well Inaccesssble <br /> 6/28/2002 Well Inaccessible <br /> 9/11/2002 Well Inaccessible <br /> 12/17/2002 — — — <br /> 3/31/2003 P 1292 37 66 <50 <0 5 <0 5 <0 5 <0 5 0 61 1 3 <br /> 6/9/2003 1252 3806 040 — Not Sampled <br /> ATR 2 4/23/1987 4922 11 28 37 94 — <100 <0 5 0 6 <0 5 <0 5 <br /> 12/22/1987 11 40 3782 -012 <0 5 <0 5 <0 5 <0 5 — — <br /> 3/24/1988 11 35 3787 005 <0 5 <0 5 <0 5 <0 5 — <br /> 6l23/1 988 11 55 3767 -0 20 <0 5 <0 5 <0 5 <0 5 — <br /> 9/29/1988 11 71 37 51 -016 — <0 5 <0 5 <0 5 <0 5 — <br /> ?122l1989 It 35 3787 036 — 370 1 8 0 7 0 6 3 4 — <br /> 6/21/1989 11 45 3777 010 -- <50 1 9 <0 3 0 4 <03 <br /> 9/18/1989 11 65 3757 -020 9 1 9 0 9 1 1 B 2 <br /> 12/27/1989 11 50 3772 015 <50 3 5 <0 3 1 1 0 3 — <br /> 4/18/1990 11 64 3758 014 50 2 9 <0 3 <0 3 <0 3 <br /> 10/16/1990 it 81 3741 017 <50 <0 5 <0 5 <0 5 <0 5 <br /> 10/19/1990 11 81 3741 0 00 - — <br /> 1/10/1991 11 58 3764 0 23 <50 0 8 <0 5 <0 5 <0 5 — <br /> 4/10/1991 11 35 37 87 023 <50 <05 <0 5 <0 5 <0 5 <br /> 7/10/1991 1174 3748 -039 <50 <05 <0 5 <0 5 <05 <br /> 9/24/1991 1202 37 20 0 28 <50 <0 5 <0 5 <0 5 <0 5 <br /> 1/23/1992 11 60 37 62 042 <50 <0 5 <0 5 <0 5 <0 5 <br /> 4/20/1992 11 53 37 69 007 <50 <0 5 <0 5 <0 5 <05 -- <br /> 7/8/1992 11 75 3747 022 — <50 2 B <0 5 <0 5 <05 — — <br /> 10/7/1992 11 83 37 39 008 — 59 5 7 <0 5 <0 5 <0 5 <br /> 1/18193 — -- — <br /> 4/14/1993 11 29 3793 55 3 8 0 7 0 8 1 9 -- <br /> 8/30/1993 11 96 3726 067 <50 <05 <0 5 <0 5 <0 5 — <br /> 10/27/1993 11 95 37 27 0 01 <50 <05 <0 5 <0 5 <0 5 — <br /> 2/18/1994 11 54 37 68 0 41 <10 0 7 0 9 <0 3 0 7 — <br /> 5/20/1994 11 61 37 61 -0 07 <10 0 9 <0 3 <0 3 <0 5 <br /> 107/1994 11 93 3729 -0 32 <50 <0 5 <0 5 <05 <05 <br /> 12/16/1994 i 1 56 3766 037 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/28/1995 11 60 3762 -004 <50 <0 5 <0 5 <0 5 <0 5 <br /> 4/25/1995 1195 3727 0 35 <50 <0 5 <0 5 <0 5 <0 5 — <br /> 7/27/1995 12 91 3631 0 96 - <50 <0 5 <0 5 <0 5 <0 5 — <br /> 1012611995 12 26 36 96 065 <50 <0 5 <05 <0 5 <0 5 1 <br /> K Mpra Qa SP AA0010.W31GodlerW OTR 0342083 GWMR 2009 <br />