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i i <br /> Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Drive <br /> Stockton California <br /> Well Depth Product Groundwater Groundwater Ethyl Xylenes <br /> Wefl Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) NO) (ugA) (ugA) (ugA) (ugA) NO) (m91L) <br /> E 12 8126188 1 96 -- <br /> 11/28/88 80 30 8 35 — <br /> 2/27/89 121 34 22 36 <br /> 5/30189 384 19 1 5 131 <br /> 8122189 150 2 2 2 3 136 <br /> 1214/89 — 250 54 <0 3 91 <br /> 114190 1698 15 02 <br /> 211/90 1673 14 77 025 <br /> 2/15190 1669 1473 004 — -- <br /> 2/22190 1756 1560 087 <br /> 318190 1647 1451 109 917 164 3 145 <br /> 415!90 1664 1468 017 -- <br /> 4119/90 1666 1470 002 <br /> 5110190 <br /> 5/24/90 17 05 — 1509 <br /> 6/5190 17 03 1507 002 — <br /> 6/19/90 1780 1584 077 151 47 2 9 76 <br /> 7112/90 1787 1591 007 -- <br /> 8116l90 <br /> 9117/90 1848 1652 <br /> 9119190 1848 -1652 000 1 100 180 2 9 98 32 <br /> 10/11/90 1857 -1661 009 - <br /> 1216/90 1843 -1647 014 — <br /> 2/12191 1810 1614 0 33 500 21 5 8 12 20 — <br /> 2/25191 1808 1612 002 -- <br /> 4/23191 1710 1514 098 <50 6 9 <05 <0 5 <05 <br /> 7116/91 1974 1778 264 320 11 <05 <0 5 09 <br /> 1018/91 2029 1833 055 210 45 <0 5 <0 5 <1 0 <br /> 1!22192 1656 1660 173 630 2 9 1 3 <2 5 08 <br /> 4122192 1769 1573 0 87 660 4 3 <32 09 21 — <br /> 7M/92 1918 -1722 149 830 18 29 2 7 54 — <br /> 10/29192 1955 1759 037 400 67 <0 5 1 3 2 7 — <br /> 1127/93 1626 — 1430 329 380 1 5 2 5 12 <1 <br /> 4/29193 1443 1247 1 83 520 27 <2 <1 <2 <br /> 8/5/93 16 OB 1412 165 830 06 <05 16 22 — <br /> 11/10/93 1622 1426 014 280 <0 7 2 7 <2 4 1 7 <br /> I IProfectsVARCO%21331Tableslgwtables2133 Page 21 of 36 <br />