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i - <br /> A Pa•of 13 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 w <br /> 3425 Tracy Blvd,Tracy,Caldomla <br /> Floating <br /> Well Depth product Groundwater Groundwater Total <br /> Date Elevation to Water thnkness Elevation Elevabon Change TPH-G Benzene Toluene Ethytbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet TOC) in feet (feet,MSL) {feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mgll) <br /> ATR-4 4/23187 49 03 1085 - 3818 - 21 000 3 000 200 <10 950 <br /> 12/22/87 1100 - 3803 -015 -- - <br /> 310 430 270 - <br /> 3/24/88 1098 38 05 002 6 000 5 800 320 930 740 - <br /> 6/13188 1211 - 36 92 1 13 5200 237 8 8 2 10 - <br /> - <br /> 9/29/88 1072 - 3831 139 1,400 1,430 115 350 130 <br /> 2122189 1091 - 3612 -019 22 000 1 300 82 54 170 <br /> 6/29189 11 00 - 3803 -009 1 300 590 38 97 220 <br /> 9118/89 1119 - 37 84 -019 630 280 13 49 100 - _ <br /> 12/28/89 1108 - 3795 Oil 1,300 500 25 56 160 <br /> 4118!90 1125 - 37 78 -017 440 150 51 35 63 - W <br /> 10/16190 11 38 - 37 65 -013 380 26 41 48 0 38 - ` <br /> 1/10191 11 16 - 3787 022 330 150 31 30 35 <br /> 4110191 1099 -- - <br /> 04 0 17 500 8 4 <0 5 <0 5 24 - <br /> 7110191 1132 - 3771 -033 190 39 <0 5 3 7 3 _ - <br /> 9124191 1157 -- 3746 -025 70 22 <05 4 2 15 _ <br /> 1123192 11 16 - 3787 041 1,200 300 52 49 72 - <br /> 4/10192 11 12 - 3791 004 - <br /> 4121192 -- 560 150 c5 36 29 <br /> 7/8/92 1131 - 3772 -- 590 150 21 36 39 Y <br /> 1017192 1145 - 3758 -014 - - - <br /> 10/8192 _ - - 1200 240 4 8 62 97 - <br /> 1/18193 1045 - 3858 -- _ <br /> 1/19193 - - - - 1200 240 5 5 44 90 _ - <br /> 4/14193 1087 3816 - _ <br /> 4/15193 -- - - 810 160 4 2 47 63 <br /> 8131/93 {c) 1098 -- -- - 100 33 <0 5 6 13 <br /> 10127/93 1098 -- - - 200 12 1 2 7 9 16 <br /> 2118/94 1031 -- - - 950 140 5 73 30 <br /> 5/20/94 1071 -- - -- 8 100 590 5 9 190 220 - <br /> 10A/94 1100 - - -- 1 100 30 1 16 7 3 _ <br /> 12/16194 1061 - - - 1 600 310 2 3 350 200 <br /> 2/28195 1068 - - - 4 600 180 <5 750 100 <br /> 4/16195 1094 -- - - 1,100 19 <1 110 8 3 _ - <br /> 7/27195 11 11 - - 1 700 12 <2 5 170 8 4 _ <br /> 10/26/95 1118 - <br /> 10/27/95 - - - - 600 7 <1 30 2 _ - <br /> 2/12/96 1043 -- - - 6,300 <0 5 <0 5 340 150 <br /> 4118/96 1077 - -- 770 <1 0 Cl 0 41 19 <br /> 7118196 1052 - - 2,600 12 <5 52 c5 560 - <br /> 11/15196 1151 -- -- 440 <05 <0 5 0 8 2 2 140 <br /> 3114197 1157 - -- 150 1 5 c0 5 <0 5 <0 5 870 0 07 <br /> 614/97 NP 1093 - - - 420 8 7 1 4 1 2 1 3 5 4 0 08 <br /> 8111197 NP 1055 -- -- -- 320 2 4 1 1 <0 5 157 6 3 <br /> 11/17/97 NP 1120 - - 420 3,3 1 4 <0 5 0 76 4 8 - <br /> 3130198 NP 1038 -- - <50 <0 5 <0 5 <0 5 <0 5 <50 11 <br /> 6125198 NP 1040 - -- -- 658 <0 5 <05 <0 5 <0 5 <5 0 1 <br /> 9111198 NP 11 06 - - <50 <0 5 <0 5 <0 5 <0 5 <2 5 084 <br /> 12115198 NP 1075 - - - <50 <05 <0 5 <0 5 <0 5 <5 0 1 1 <br /> 3!17!99 NP 1063 - 3860 - <60 <0 6 <0 5 <0 6 <0 6 450 67 <br /> 7G600-028-002/GW Tables <br />