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<br /> Table 1
<br /> HISTORICAL GROUNDWATER ANALYTICAL RESULTS AND MONITORING DATA
<br /> . CHEVRON SERVICE STATION#9-4275
<br /> 2905 WEST BENJAMIN HOLT DRIVE,STOCKTON,CALIFORNIA
<br /> WELL 1 D/ ETHYL-
<br /> TOC ELEVATION SAMPLE BENZENE TOLUENE BENZENE XYLENES TPH-GED gPT yyTE
<br /> feet DATE b b b b feeilees
<br /> MW-1
<br /> 224 03/22/89 3,600 1,300 1,100 2,700 30,000 1629 0 00 -1405
<br /> 06/12/89 4,400 1.600 2,900 5,900 20,000 1691 000 -1467
<br /> 09/07/89 4,100 480 920 1,500 20,000 1838 000 -1614
<br /> 12118/89 4,200 200 17 1.200 17,000 1760 000 -1536
<br /> 03/20/90 6,400 580 2,200 1,200 13,000 1722 `00 -14 98
<br /> 07/03/90 4,800 410 1,300 1,200 17.000 1804 000 --1580
<br /> 10/19/90 4,800 290 1,700 700 16,000 1934 000 -1710
<br /> 10/19/90D 5,600 270 1,700 660 17,000
<br /> 01/17/91 3,100 38 950 170 10,000 1904 000 -1680
<br /> 01/17/91D 3.200 39 980 170 9,800
<br /> 03/19/91 2,900 45 960 290 16,000 - W r.
<br /> 07/18/91 3.300 90 1,100 250 12.000 1920 000 -1696
<br /> 07/18/91D 3,300 90 1,100 250 12,000
<br /> 10/31/91 2.600 18 720 180 9,800 1962 000 -1736
<br /> 01/16/92 3,600 54 960 370 12,000 1882 000 -1658
<br /> 03111/92 -- -- 1762 000 -15.38
<br /> 03/17/92 3,600 150 700 360 9,800 1760 000 -1536
<br /> 05/18/93 1,900 120 730 840 8,800 15,86 000 -1362
<br /> 08/05/93 9,400 1,800 2,900 4 900 29,000 1674 000 -1450
<br /> 11/09/93 3,600 110 810 870 13,000 1724 000 ---1500
<br /> MW-2
<br /> 341 03/22/89 750 20 480 730 9,000 1754 000 -1413
<br /> 06/12/89 1.200 80 710 870 NO 1819 000 -1478
<br /> 06112/89D 1,400 90 790 1,100 11,000
<br /> 09/07/89 3,200 NO 1,200 800 14.000 1966 000 -1695
<br /> 1 Z/18/89 2,500 NO 1,300 340 10,000 1885 000 -1544
<br /> 03/20/90 4,800 88 2.100 1,500 13,000 1849 000 -1508
<br /> 07/03/90 5,700 600 1 900 1,700 21,000 1907 000 -1566
<br /> 07103/90D 5,000 400 2,000 920 14,000
<br /> 10/19/90 4,400 77 190 340 11,000 2006 000 -1665
<br /> 01/17/91 5,400 68 1,600 280 16,000 2031 000 --1590
<br /> 03/19/91 4,300 50 1,500 260 8,700
<br /> 07/18/91 1,100 6 710 89 6,200 20.48 000 -1707
<br /> 10/31/91 2,900 NO 1,800 2,700 32000 2087 000 -1746
<br /> 10131/91D 2,900 NO 1,800 2,700 33,000
<br /> 01/16/92 2,400 21 1,100 840 14,000 2006 000 -1665
<br /> 03/11/92 -- --- 1890 000 -1549
<br /> 03/17/92 3.900 26 890 1,100 13,000 1886 000 -1545
<br /> 05/18/93 2,000 25 1,000 520 9.700 1714 000 -1373
<br /> 08/05/93 1,400 11 880 820 81100 1798 000 -1457
<br /> 11/09/93 920 20 740 140 7,400 1851 000 -1510
<br /> MW-3
<br /> 240 03/22/89 NO NO NO NO NO 1651 000 -1411
<br /> 06/12/89 NO NO NO NO NO 1719 000 -1479
<br /> 09/07/89 NO NO NO NO NO 1864 000 -1624
<br /> 12/18/89 NO NO NO NO NO 1778 000 -1538
<br /> 03/20/90 NO NO NO NO NO 1755 000 -1515
<br /> 07/03/90 NO NO NO NO NO 1871 000 -1631
<br /> 10/19/90 NO NO ND NO NO 1963 000 -1723
<br /> 01/17/91 NO NO NO NO 70* 1934 000 -1694
<br /> 03/19/91 NO NO NO NO NO
<br /> 07/18/91 NO NO NO NO NO 1948 000 -1708
<br /> 10/31/91 NO NO ND NO NO 1986 000 -1746
<br /> 01/16192 NO NO NO 09 NO 1905 000 -16 65
<br /> 03/11/92 -- -- 1795 000 --1555
<br /> 03/17/92 0.7 1.1 ND 08 NO 1790 000 -1550
<br /> 05/18/93 NO 08 07 37 NO 1614 000 -1374
<br /> 08/05/93 05 2 2 NO so 120 1700 000 --1460
<br /> 1.1L09193 I NDI NO NQNDI ND 1758 000 -1518
<br /> Page 1 of 2
<br /> -- �[ GROUNDWATER
<br /> y_J TECHNOLOGY
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