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Tab -
<br /> Groundwater Monitoring nd Analytical Results -
<br /> Chevron Service Station#9-4275
<br /> 2905 West Benjamin Holt Dave
<br /> Vertical Measurements are in feet Stockton,California Analytical results are to 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-2
<br /> 03/22/89 3 41 -14 13 1754 -- 9,000 750 20 480 730
<br /> 06/12/89 3 41 -1478 18 19 -- ND 1,200 80 710 870
<br /> 06/12/89 3 41 -- -- Duplicate 11,000 1,400 90 790 1,100
<br /> 09/07/89 3 41 -1625 1966 -- 14,000 3,200 ND 1,200 800
<br /> 12/18/89 341 -15 44 1885 -- 10,000 2,500 ND 1,300 340 -
<br /> 03/20/90 341 -1508 1849 -- 13,000 4,800 88 2,100 1,500 -
<br /> 07/03/90 341 -1566 1907 -- 21,000 5,700 600 1,900 1,700 -
<br /> 07/03/90 341 -- -- Duplicate 14,000 5,000 400 2,000 920
<br /> 10/19/90 341 -1665 2006 -- 11,000 4,400 77 190 340
<br /> 01/17/91 341 -1690 2031 16,000 5,400 68 1,600 280
<br /> 03/19/91 3 41 -- -- -- 8,700 4,300 50 1,500 260
<br /> 07/18/91 3 41 -17 07 2048 -- 6,200 1,100 6 0 710 89 --
<br /> 10/31/91 3 41 -1746 2087 -- 32,000 2,900 ND 1,800 2,700
<br /> 10/31/91 3 41 -- -- Duplicate 33,000 2,900 ND 1,800 2,700
<br /> 01/16/92 341 -1665 2006 -- 14,000 2,400 21 1,100 840
<br /> 03/11/92 341 -1549 1890 -- -- -- -- -- --
<br /> 03/17/92 341 -1545 1886 -- 13,000 3,900 26 890 1,100 -
<br /> 06/29/92 341 -17 04 2045 -- 20,000 2,800 97 2,200 17 -
<br /> 12/10/92 341 -1762 2103 -- 9,900 1,600 8 0 1,100 930 -
<br /> 02/04/93 341 -1553 1894 10,000 1,100 82 820 730 -
<br /> 05/18/93 3 41 -1373 17 14 -- 9,700 2,000 25 1,000 520
<br /> 08/05/93 3 41 -1457 1798 -- 8,100 1,400 it 880 820
<br /> 11/09/93 341 -1510 1851 -- 7,400 920 20 740 140
<br /> 01/18/94 341 -1480 1821 -- 2,500 330 12 270 91
<br /> 06/27/94 3 41 -1409 1750 -- 6,500 1,400 11 630 250
<br /> 09/29/94 341 -1528 18 69 -- 15,000 900 ND 1,600 87
<br /> 12/08/94 3 41 -1487 1828 -- 8,000 440 <10 870 470
<br /> 03/08/95 3 41 -1271 1612 -- 2,200 170 3 0 230 150 -
<br /> 9-4275 xls/#386845 3 As of 09/13/00
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