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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station #2133 <br /> 2908 Benjamin Holt Drive <br /> Stockton, California <br /> Well Depth Product Groundwater Groundwater Ethyl- Xylenes <br /> Well 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) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> E-5 6124198 7 66 -- -521 205 <br /> (cant) 9110198 NP 9 40 - -695 174 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 12/17/98 945 -- -700 -005 - -- <br /> 3/10/99 NP 727 -482 218 <50 <0 5 <0 5 <0 5 <0 5 <5 41 <br /> 6/22199 922 -677 1 95 -- 31 <br /> 9/13/99 NP 1093 -848 171 <50 <0 5 <0 5 <0 5 <0 5 <5 5 6 <br /> 12/15/99 1082 -837 Oil - 95 <br /> 3123/00 NP 612 -- -367 470 <50 <05 <0 5 <0 5 <0 5 <250 4 7 <br /> 6/21/00 837 -592 225 - 048 <br /> 9/13/00 NP 1017 -772 -1 80 <50 <0 5 <0 5 <0 5 <0 5 <2 50 309 <br /> 12/15/00 962 -717 055 - 110 <br /> 311/01 P 795 5 50 1 67 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 39 <br /> 5/10/01 764 -519 0 31 2 8 <br /> 8122101 P 1042 -- -797 278 <50 <0 50 <0 50 <0 50 <0 50 <2 5 <br /> 1215/01 959 714 083 - <br /> 3/11102 P 780 -535 1 79 <50 <0 50 <0 50 <0 50 <0 50 <2 5 136 <br /> 6/6102 876 -631 -096 - - - 0 89 <br /> 9124102 P 1055 -810 -179 <50 <0 50 <0 50 <0 50 <0 50 <2 5 148 <br /> 12/17/02 Sao — -635 1 75 — — -- — -- — — <br /> E-6 8/26188 301 11/28/88 - -- -- - -- -- - <br /> 2/27/89 2,230 600 290 1,010 <br /> 5/30/89 <br /> -- -- -- -- -- -- -- <br /> 8122189 --12/4/89 -- -- --1/4/90 1800 -1499 - - - <br /> 2/1/90 1762 -1481 018 - -- <br /> 2115/90 1778 -1477 0 04 - - <br /> 2/22190 1858 -1557 080 - -- <br /> 3/8/90 1765 -1464 0 93 3,600 740 340 980 <br /> 4/5/90 1767 -1466 -002 <br /> 4/19/90 1773 - 1472 -006 - <br /> 5/10/90 1811 -1510 -038 - <br /> Projects/ARCO/2133/Reports/Tables/gwtables2133 As 9 <br />