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:J <br /> TO P J&f 17 <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 Elevation Elevation Change TPH-G Benzene Toluene Ethylbenzene Xylenes MTBE 00 <br /> Sampled (feet,MSL) (feet,TOC) In feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/1) <br /> ATR-2 10/27/93 11 95 - 3727 0 01 <50 <05 <05 <0 5 <0 5 -- - <br /> (cont) 02/18/94 11 54 - 3768 0 41 <10 0 7 0 9 <0 3 0 7 <br /> 05/20/94 11 61 -- 3761 -0 07 <10 0 9 <03 <0 3 <05 <br /> 10107/94 1193 - 3729 -0 32 <50 <05 <05 <0 5 <05 <br /> 12/16/94 1156 - 3766 037 <50 <05 <05 <0 5 <05 - <br /> 02126195 1160 - 3762 -004 <50 <0 5 <0 5 <0 5 <05 - <br /> 04/25/95 11 95 -- 3727 -035 <50 <0 5 <0 5 <0 5 <05 <br /> 07/27195 12 91 - 3631 -096 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 10/26195 1226 -- 3696 0 65 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 02/12/96 1140 - 3782 0 86 <50 <0 5 <0 5 <05 <0 5 <br /> 04/18/96 1190 - 3732 -050 <250 <2 5 <2 5 <25 <25 - <br /> 07/18/96 1210 - 3712 -020 <50 <0 5 <0 5 <05 <0 5 500 <br /> 11/15/96 1270 - 3652 -060 <50 <0 5 <0 5 <0 5 <0 5 750 -- <br /> 03/14/97 P 1270 - 3652 000 <50 <0 5 <0 5 <0 5 <0 5 280 008 <br /> 06/04/97 NP 1202 - 3720 068 <50 064 <0 5 <05 <0 5 480 006 <br /> 08/11/97 P 1233 - 36 89 -0 31 <50 <0 5 <0 5 <05 <0 5 440 <br /> 11/17/97 P 1226 - 3696 007 <50 <0 5 <0 5 <0 5 <0 5 98 <br /> 03130/98 NP 1182 - 3740 044 <50 <0 5 <0 5 <0 5 <0 5 18120' 1 2 <br /> 06/25/98 NP 1205 - 3717 -023 <50 <0 5 <0 5 <0 5 <0 5 109 1 6 <br /> 09/11/98 NP 1212 - 3710 -007 <50 <0 5 <0 5 <0 5 <0 5 250 1 67 <br /> j 12/15/98 NP 1201 - 3721 Oil <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 5 <br /> 03/17/99 NP 1165 - P 57 036 <50 <0 5 <0 5 <0 5 <0 5 <5 0 2 3 <br /> 05/14199 NP 1205 - 3717 -040 <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 90 <br /> 09/16/99 NP 1223 - 3699 -018 <50 <0 5 <0 5 <0 5 <0 5 <50 37 <br /> 12!22199 NP 1214 - 3708 009 <50 <0 5 <0 5 <0 5 <0 5 <2 50 743 <br /> 02/29/00 NP 1160 - 3772 0 64 <60 <0 5 <0 5 <0 5 <0 5 483 61 <br /> ATR-3 04/23/87 49 93 1179 - 3814 -- 17,000 2 300 180 <5 0 2,300 -- - <br /> 12/22/87 1193 - 38 00 -014 -- 5,000 50 530 250 -- - <br /> 03/24/88 1258 - 3735 -0 65 43,000 8,300 8,700 4,400 7,800 - <br /> 06/23/88 1117 - 3876 141 70,000 6,160 4,221 1,800 4,750 -- - <br /> 09/29/88 1223 - 3770 -106 57,400 8,850 17,600 2,190 8,170 -- <br /> 02122/89 1182 - 3811 041 110,000 1,000 2,100 480 2,000 - <br /> 06/29/89 - - - -- 4,500 890 520 250 1,100 - <br /> 09!18189 1219 - 3774 -- 7,400 1,000 1,300 460 2,200 - <br /> 1212b% 1201 -- 3792 018 27,000 840 1,400 840 5,800 - <br /> 04l18190 1215 - 3778 -014 4,800 1,000 490 340 1,500 - <br />