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<br /> Table 1
<br /> Groundwater Elevation and Analytical Data
<br /> ARCO Service Station#2133
<br /> 2908 Benjamin Halt Dr,Stockton,CA
<br /> Well Depth Product Groundwater Groundwater Xylenes
<br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MtBE DO
<br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L)
<br /> E-10 4/23/91 1656 -- -1530 085 8,200 670 180 200 750
<br /> (cont) 7/16191 1911 -1785 -255 9,400 850 230 210 1,100
<br /> 10/8/91 1960 - -1834 -049 8,700 860 150 260 820
<br /> 1/22/92 1824 -- -1698 136 32,000 3,200 800 3,600 3,600 --
<br /> 4/22/92 1714 -- -1588 1 10 26,000 2,800 1,300 880 3,400
<br /> 7/29/92 1862 - -1736 -148 42,000 3,400 1,100 1,400 6,400
<br /> 10/29/92 1899 -1773 -037 25,000 3,600 700 1,200 4,000
<br /> 1/27/93 1577 -1451 322 31,000 2,500 540 1,100 3,100
<br /> 4/29/93 1396 -- -1270 1 81 28,000 2,500 640 1,400 4,400 -
<br /> 815/93 1552 -- -1426 -156 32,000 3,300 630 1,700 5,700
<br /> 11/10/93 1585 -- -1459 -033 31,000 2,600 290 1,500 4,400
<br /> 3/21/94 1529 -- -1403 056 28,000 2,900 290 1,700 4,500 --
<br /> 6/27/94 1510 -- -1384 019 25,000 3,000 180 1,900 4,100
<br /> 9/29/94 1611 -- -1485 101 27,700 3,200 150 1,780 2,900
<br /> 1218194 1571 -- -1445 040 18,000 3,300 110 1,700 3,000
<br /> 3/8/95 1328 -- -1202 243 38,000 2,100 260 1,800 4,000
<br /> 6/1/95A 1449 274 -11 18 084 -- - -- -- --
<br /> 9/11/95^ 1501 131 -1277 -159 -- -
<br /> 12/5/95^ 1464 037 -1310 -034 -- -. -- -- -- - --
<br /> 3118196 955 -- -829 481 370,000 7,300 2,200 9,900 62,000 --
<br /> 6/18/96 887 -- -761 0 66 400,000 390 3,600 2,000 16,000 6,200
<br /> 9/25/96 1258 -- -1132 -371 28,000 2,100 3,900 600 51100 16,000
<br /> 12/4/96 1205 -1079 053 55,000 3,600 3,900 1,300 9,800 27,000 -
<br /> 3/19/97 P 737 -- -611 468 1,600 39 43 52 48 1,100 01
<br /> 6/5/97 NP 897 - -771 -160 100 28 <0 5 <0 5 20 fit 01
<br /> 8/19/97 NP 1043 -917 -146 750 18 30 36 19 1,900 01
<br /> 11/25/97 NP 1161 -1035 -118 10,000 1,000 320 200 1,400 46,000 --
<br /> 3/20/98 P 465 -- -339 696 7,300 2,000 68 350 260 32,000 55
<br /> 6124/98 P 666 -- -540 -201 15,000 110 130 120 660 19,000 10
<br /> 9/10/98 N P 832 -- -706 -166 196 686 1 18 123 617 1,870 -
<br /> 12/17/98 NP 842 -- -716 -010 5,020 1,230 516 239 313 17,600 --
<br /> 3/10/99 P 621 -- -495 221 1,620 235 142 71 9 859 3,980 82
<br /> 6122199 N P 877 -751 -256 160 707 0 685 <0 5 <0 5 893 33
<br /> 9113199 NP 981 - -855 -104 128 931 <0 50 <0 50 123 299 1 8
<br /> 12/16/99 NP 945 -- -819 036 10,800 2,290 607 433 515 17,800 14
<br /> 3/23100 P 478 -- -352 467 1,520 161 <10 0 455 212 3,310 1 7
<br /> Protects/ARCO/2133/Reports/Tables/gwtables2133 As
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