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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station 112133 <br /> 2908 Benjamin Bolt Drive <br /> Stockton California <br /> wall 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 n,MSL r4 TOC h Itt,MSL Change(ft) (ug/1) <br /> u NO) (ug/1) (W) u ) (mg/L <br /> E 3 5!1011990 1747 — 1518 032 <br /> (cont) 5124/1990 1742 -- 1513 005 <br /> 6/5/1990 1738 — 1509 004 <br /> 6/1811990 dry — -- <br /> 7/12/1990 1819 — 1590 —8/1611990 dry — -- — <br /> 9117/1990 1832 -- 1603 <br /> 9119/1990 1632 — 1603 000 <br /> 10/1111990 dry -- <br /> 1 21611 9 90 day — <br /> 2 l 111991 1830 — 1601 <br /> 212WI991 1826 — 1597 004 <br /> 4723/1991 1779 — 1550 047 <br /> 7115/1991 dry — — <br /> 1 01811 9 9 1 dry — — — <br /> 1/2271991 dry — -- — <br /> 4122n 992 dry — — -- <br /> 772911992 d=y - - <br /> 10/29/1992 dry -- — <br /> 1/27/1993 1669 -- 1440 -- 57 000 2 700 180 660 1900 <br /> 4129/1993 1493 — 1264 1 76 32 000 3 400 140 930 2 500 <br /> 875/1993 16 70 — 1441 1 77 27 000 1 800 69 670 1 400 <br /> 11/1011993 1714 — 14 85 -044 47 000 1 700 <50 740 2000 <br /> 312111994 1660 -- 14 31 054 24 000 1 500 86 620 1 Soo <br /> 6127/1994 1625 — 1396 035 19 000 1 500 36 670 1 400 <br /> 9/2911994 1704 -- 1475 -079 24 000 1 600 77 630 t 300 <br /> 12/8/1994 1668 — 14 39 036 21 000 2 700 58 890 1900 <br /> 3/8/1995 1420 — 11 91 248 94 000 1 600 130 640 2 600 <br /> 6/1/1995 1268 — 1039 1 52 58 000 1900 24 590 2 500 <br /> 9/1171995 15 01 — 1272 233 29 000 1 900 <60 640 1 900 <br /> 12/511995 15 22 -- 1293 021 <br /> 3118/1996 1040 -- 811 482 15 000 480 12 390 660 <br /> 611871996 1105 — -876 -065 — <br /> 9125/1996 1352 — 11 23 247 7 600 150 <5 160 300 <50 <br /> 12/4/1996 1293 -- 1064 059 <br /> 3/1 911 99 7 P B37 — -608 456 4 400 46 6 46 99 02 <br /> 6/511997 P 1006 — 777 169 — 02 <br /> 8/1911997 P 1153 924 147 3 900 50 10 41 28 <50 01 <br /> 11/25/1997 P 11 70 — 941 017 — <br /> 3/20/1998 P 540 — -311 630 <50 <0 50 <0 50 .050 <0 50 <5 0 20 <br /> 6/2411998 742 — 513 202 <br /> 9 71 011 9 9 8 P 919 — -690 177 1 440 146 391 127 531 651 <br /> 12717/1998 928 -699 -009 <br /> 3110/1999 P 701 -472 227 900 4 54 1 68 763 245 <50 33 <br /> V=1999 B 77 — 6 48 1 76 36 <br /> 1%ProjectstARC012i331TablesVwlables2133 xls Page 3 o129 <br />