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Tab Pageof 30 r <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt 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 /> 1214189 -- -- -- - <0 3 <0 3 <0 3 0 4 <br /> 114/90 1641 -- -1561 -- - - -- -- <br /> 211/90 1614 -- -1534 027 -- -- <br /> 2/15/90 1612 -- -1532 002 - -- - - <br /> 2/22190 1694 — -1614 -082 -- -- -- -- <br /> 3/8/90 15 90 -- -1510 104 -- <0 5 <0 5 <0 5 <0 5 - <br /> 4/5/90 1606 -- -1526 -016 -- - -- -- <br /> PR-1 4/19/90 1612 -- -1532 -006 - <br /> (cont) 5/10/90 1659 -- -1579 -047 - -- - <br /> 5/24/90 1657 -- -1577 002 -- -- - <br /> 6/5/90 -- -- -- - <br /> 6/18/90 16 95 -1615 - -- <0 5 <0 5 <0 5 <0 5 <br /> 7/12/90 1736 -1655 -041 -- - - <br /> 8/16/90 1762 -- -1682 -026 -- -- - -- - <br /> 9/17/90 1793 -- -1713 -031 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/19/90 1793 -- -1713 000 <50 <0 5 <0 5 <0 5 <0 5 <br /> 10/11/90 1798 -- -1718 -005 -- - -- - -- <br /> 12J6/90 1783 -1703 0 15 -- -- -- - -- <br /> 2/11/91 1753 -1673 030 <50 <0 5 <05 <0 5 <0 5 - <br /> 2/25/91 1747 -- -1667 006 -- -- - -- -- <br /> 4/23/91 1653 -- .1573 094 <50 <0 5 <05 <0 5 <0 5 <br /> 7/16/91 1818 -- -1738 -165 <50 <0 5 <0 5 <05 <0 5 - <br /> 10/8/91 1863 -- -1783 -045 <50 <0 5 <0 5 <0 5 <0 5 <br /> 1/22J92 1749 -- -1669 1 14 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 4/22192 1690 -- -1610 059 <50 <0 5 <0 5 <0 5 <0 5 <br /> 7/29/92 1640 -- -1760 -150 <50 <0 5 <0 5 <0 5 <0 5 <br /> 10/29/92 18 84 -- -1804 -044 <50 <0 5 <0 5 <0 5 <0 5 <br /> 1127/93 1616 -- -1536 268 <50 <0 5 <0 5 <0 5 <0 5 <br /> 4/29/93 1412 -- -1332 2 04 <50 <05 <0 5 <0 5 <0 5 <br /> 8/5/93 1548 -- -1468 -1 36 <50 <0 5 <0 5 <0 5 <0 5 <br /> 11 A 0/93 1594 -1514 -046 <50 <0 5 <0 5 <05 <0 5 <br /> 3/21/94 1462 -- -1382 132 <10 <0 3 <0 3 <0 3 <0 5 <br /> 6/27/94 1498 -- -1418 -036 <10 <0 3 <0 3 <0 3 <0 5 <br /> 9/29/94 1609 -- -1529 -111 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/8/94 1566 -- -1486 043 <50 <0 5 <0 5 <0 5 <0 5 <br /> 3/8/95 1347 -- -1267 219 <50 <0 5 <05 <0 5 <0 5 <br /> 6/1/95 1194 -- -11 14 153 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/11/95 1382 -- -1302 -188 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/5/95 1422 -- -1342 -040 - -- - -- <br />