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<br /> Table 1 ! `-
<br /> Groundwater Elevation and Analytical Data Page 3 of 14
<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 Ethyibenzene Xylenes MTBE
<br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb)
<br /> ATR-2 2112196 1140 - 3782 0 86 <50 <06 <0 5 <05 <0 5 -
<br /> (Cont) 4118196 1190 - 3732 -050 <250 <25 <2 5 <25 <2 5 -
<br /> 7118196 1210 -- 3712 -020 <50 <0 5 <05 <0 5 <0 5 500
<br /> 11/15/96 1270 - 3652 -0 60 <50 <0 5 <05 <0 5 <0 5 750
<br /> 3114197 P 1270 -- 36 52 0 00 <50 <0 5 <05 <0 5 <0 5 280
<br /> 614197 NP 1202 -- 3720 068 <50 0 64 <05 <0 5 <0 5 480
<br /> 8111197 P 1233 - 36 89 -031 <50 <0 5 <G5 <0 5 <0 5 440
<br /> 11/17/97 P 1226 -- 3696 007 <50 <0 5 <0 5 <0 5 <05 98
<br /> 3130198 NP 1182 - 3740 044 <50 <0 5 <0 5 <0 5 <0 5 18120"
<br /> 6126198 NP 1206 - 3717 -023 <60 <0 6 <0 6 <0 6 <0 6 109
<br /> ATR-3 4123187 4993 1179 -- 3814 -- 17,000 2,300 180 <50 2,300 -
<br /> 12/22/87 1193 -- 3800 -014 - 5,000 50 530 250
<br /> 3124/88 1258 -- 3735 -065 43,000 8,300 8,700 4,400 7,800
<br /> 6123188 11 17 - 38 76 1 41 70,000 6 160 4,221 1,800 4,750
<br /> 9129188 1223 -- 3770 -106 57,400 8,850 17,600 2,190 8,170 --
<br /> 2122189 1182 - 3811 041 110,000 1,000 2,100 480 2,000 -
<br /> 6129189 - - - - 4,500 890 520 250 1,100 --
<br /> 9118189 1219 -- 3774 -- 7,400 1,000 1,300 460 2,200 --
<br /> 12/28/89 1201 -- 3792 018 27,000 840 1,400 840 5,600 --
<br /> 4/18190 1215 -- 3778 -014 4,800 1,000 490 340 1,500 --
<br /> 10/16/90 1235 - 3758 -020 14,000 1,900 1,300 780 4 600 -
<br /> 10/19/90 1228 - 3765 007 -- - -- - --
<br /> 1/10191 1201 -- 3792 027 2,600 610 230 160 670 --
<br /> 4/10/91 1182 -- 3811 019 3,000 910 120 110 190 --
<br /> 7110191 1223 - 3770 -041 19,000 420 300 340 760 -
<br /> 9124191 1257 - 3736 -034 2,000 280 81 69 130 --
<br /> 1123192 1212 Sheen 3781 045 - -- -- - _ _
<br /> 4120/92 1193 Sheen 3800 019 - - - - - --
<br /> 718192 1222 Sheen 3771 -0 29 -- - -- - - -
<br /> 10!7192 1238 Sheen 3755 -016 - - - -- -- --
<br /> 1118/93 1122 Sheen 3871 1 16
<br /> 4114193 1149 Sheen 3844 -027 -- -- - -
<br /> 8/30193 1243 Sheen 3750 -094 - - -- -- -- -
<br /> 10/27/93 1239 Sheen 3754 004 - -- -- -- -- -
<br /> 2118l94 1200 -- 3793 039 1,900 200 27 120 140 --
<br /> 5120194 1207 Sheen 3786 -007 - - - - M
<br /> f! 1017194 1238 Sheen 3755 -031
<br /> 7G600-026-001/GW Tables
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