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Te P of 16 <br /> Groundwater Eleva d Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy,CA <br /> Well Depth Product Groundwater Groundwater Xylenes <br /> Well Date Elevation to Water Thickness Qevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (it,TOC) (ft) (ft, MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> ATR-7 6120101 P 1247 - 3718 -014 <50 -CO 50 <0 50 <0 50 <0 50 580*(cont) <br /> ATR 8 8/25/91 4598 -- _- -- -- 2,700 110 <0 5 130 98 <br /> 9/25/91 885 -- 3713 -- 1,400 95 <0 5 51 97 --1/23/92 829 -- 3769 056 <50 2 5 <0 5 <0 5 <0 5 <br /> 4120192 811 3787 018 <br /> 4/21192 -- -- -- 140 14 0 9 14 9 3 -- <br /> 7/8/92 848 3750 -- 87 40 <0 5 9 2 08 -- - <br /> 10/7/92 869 - 3729 -021 -- -_ -- _- <br /> 1018/92 -- -- -- 140 78 32 11 88 -- - <br /> 1/18/93 709 -- 38 89 <br /> 1119/93 -- -- -- -- 980 140 17 11 34 -- - <br /> 4/14/93 7 80 - 3818 - -- -- -- -- -- -- -- <br /> 4/15193 -- -- -- 110 42 <0 5 46 49 -- <br /> 8/31/93 981 3617 -- 700 160 15 41 71 - <br /> 10/27/93 868 -- 3730 1 13 52,000 620 2,100 2,800 8,700 -- <br /> 2117/94 825 014 3783 053 <br /> 5/20/94 855 014 3753 -030 <br /> 108194 870 014 3738 -015 <br /> 12/16/94 821 Sheen 3777 039 <br /> 2128/95 845 002 3754 -023 <br /> 4126/95 851 050 3782 028 -- -- -- -_ _ <br /> 7/27/95 985 012 3621 -161 <br /> 10/26/95 928 003 3672 051 <br /> 2112!96 7 87 002 3812 140 <br /> 4/18/96 845 002 3764 -0 58 -- -- -- -_ -- -- <br /> 7/18196 895 - 3703 -0 51 88,000 72 220 620 2,500 <500 -- <br /> 11/15/96 940 3668 -045 52,000 110 130 240 1,300 <200 -- <br /> 3/14197 924 -- 3674 016 350 4 2 <0 5 16 26 <2 5 010 <br /> 614/97 NP 869 $729 055 1,200 42 5 2 8 2 150 <2 5 003 <br /> 8/11197 NP 9 10 -- 36 88 -041 7,800 280 75 140 710 <25 -- <br /> 11/17/97 NP - -- -- 4,200 57 <0 5 <0 5 250 <2 5 -- <br /> 3/30/98 NP 802 3796 -- 320 17 <0 5 <0 5 2 4 <5 01<2 0* 080 <br /> 6125198 NP 969 3629 -167 876 300 190 871 176 <5 0 140 <br /> 9/11/98 Well paved over <br /> 12/15/98 NP 4611 886 3726 -- 456 102 0 690 612 809 <5 0 070 <br /> 3/17/99 NP 855 - 3756 -031 130 212 0 528 212 271 <5 0 260 <br /> 5/14/99 NP 881 3730 026 155 179 <0 5 241 200 <5 0 420 <br /> 9116199 NP 917 - 3694 036 747 278 142 988 840 <5 0 180 <br /> 12/22/99 NP 799 3812 -1 18 648 <0 6 0 686 585 636 <2 50 031 <br /> 2129/00 NP 818 -- 3793 -019 142 160 <0 5 239 136 <2 50 620 <br /> 6/7100 NP 902 -- 3709 -084 576 482 <0 600 843 <2 50 <125 -- <br />