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Tab 0Groundwater Monitoring nd Analytical Results <br /> Chevron Service Station#9-4275 <br /> 2905 West Benjamin Holt Drive <br /> Vertical Measurements are in feet Stockton,California Analytical results are in parts per billion(ppb) <br /> Well Ground Depth <br /> DATE Head Water To Notes TPH- Benzene Toluene Ethyl- Xylenes MTBE <br /> Elev Elev Water Gasoline Benzene <br /> MW-5(cont) <br /> 11/25/97 379 -1035 1414 - 8,300 290 <50 770 450 <250 <br /> 03/26/98 379 -406 785 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 <br /> 06/24/98 3 79 -577 956 -- <50 <0 5 <0 5 064 <0 5 100 <br /> 09/10/98 379 -779 1158 -- 100 36 1 5 10 5 8 4 7 <br /> 12/17/98 3 79 -761 1140 -- 52 12 <0 5 3 9 2 3 680 <br /> 03/10/99 379 -590 969 -- <50 <0 5 <0 5 061 <0 5 19 <br /> 06/22/99 379 -636 1015 <50 <0 5 <0 5 <0 5 <0 5 <2 0 <br /> 09/13/99 379 -9 02 1281 -- 1,900 20 3 4 130 85 32 <br /> 12/16/99 379 -890 1269 -- 2040 871 485 137 99 6 108 <br /> 03/01/00 3 79 -416 795 - 90 6 <0 5 <0 5 <0 5 1 47 4 15 <br /> 06/13/00 379 -640 1019 -- <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 <br /> 09/13/00 379 -8.45 12 24 -- <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 <br /> MW-6 <br /> 03/11/92 143 -1556 1699 - -- -- -- -- -- -- <br /> 03/17/92 143 -1552 1695 - 3,900 63 23 370 57 <br /> 06/29/92 1 43 -1705 1848 -- 750 40 3 0 49 ND <br /> 12/10/92 143 -1765 1908 -- 700 ND 3 2 3 4 0 6 <br /> 02/04/93 143 -15 56 1699 - 620 ND 1 7 0 3 ND <br /> 05/18/93 143 -13 75 15 18 -- 760 ND 3 7 15 6 0 <br /> 08/05/93 143 -1462 1605 -- 1,300 ND 7 7 3 9 1 6 <br /> 11/09/93 143 -15 16 16 59 - 630 3 5 14 ND 0 8 - <br /> 01/18/94 143 -1482 1625 -- 470 6 1 2 8 1 4 0 8 - <br /> 06/27/94 143 -14 13 1556 -- 320 35 1 I 16 3 5 - <br /> 09/29/94 143 -15 27 1670 -- 780 8 0 2 5 49 5 5 -- <br /> 12/08/94 143 -1492 1635 -- 430 3 2 3 4 3 9 1 5 <br /> 9-4275 xlsl#386845 10 As of 09/13/00 <br />