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Ta <br /> Groundwater MonitoringlandAnalytical Results <br /> Former Chevron Service Station#9-8632 <br /> 575 Grant Line Road <br /> Vertical Measurements are in feet Tracy,California Y p p (ppb) <br /> Analytical results are in arts per billion b <br /> Well Ground Depth Total <br /> DATE Head Water To TPH• TPH• Benzene Toluene Ethyl- Xylenes MTBE (hl& <br /> Elev Elev. Water Diesel Gasohne Benzene Grease <br /> MW-3 <br /> 05/12/95 2723 2014 709 -- -- -- -- -- -- -- -- <br /> 09/07/95 27 23 1948 775 1,4001 5100 500 14 370 390 -- - <br /> 12/01/95 2723 1990 733 4,700' 19,000 1500 59 1100 1900 -- <br /> 02/07/96 2723 2145 5 78 200' 3000 230 10 180 230 2500 -- <br /> 05/07/96 27 23 20 13 7 10 2,3001 7100 580 14 450 350 1300 -- <br /> 08/20/96 2723 1923 8 00 180' 430 55 <1 2 42 23 480 - <br /> 11/05/96 2723 2009 7 14 1,5001 6800 400 <10 320 170 600 -- <br /> 01/07/97 2723 2107 6 16 130' 130 15 <0 5 3 6 4 0 450 -- <br /> 06/05/97 2723 2010 7 13 72' 180 23 072 12 7 0 160 -- <br /> 09/02/97 27 23 1975 748 1,100' 6100 440 <25 430 120 650 - <br /> 11/19/97 27 23 2035 6 88 140' 320 28 <0 5 16 2 6 150 <br /> 02/12/98 2723 21 32 591 941 240 22 <0 5 10 4 2 300 - <br /> 06/10/98 2723 2055 668 290' 13,000 1300 <50 680 <50 3100 -- <br /> 08/10/98 2723 1983 740 2,000' 6300 580 14 650 380 1400 -- <br /> 11/24/98 2723 1998 7 25 240' 1300 120 <10 120 19 770 - <br /> 03/05/99 2723 2039 6 84 3361 940 189 999 597 71 6 698 - <br /> 06/01/99 2723 2031 692 522' 2390 261 27 190 785 858 - <br /> 08/30/99 2723 2000 7 23 150' 318 126 <1 0 101 <1 0 295 -- <br /> 11124l99 27 23 2035 688 6411 3480 829 <5 0 148 315 533 -- <br /> 02/03/00 2723 20 83 640 6806 3,0003 170 <10 170 72 1,20011,200' _ <br /> 06/26/00 2723 2007 7 16 1514 7603 44 <5 0 34 34 350 - <br /> 08/11/00 27 23 19.74 7.49 4106 2,400 150 <5 0 83 150 2,100 -- <br /> 9-8632 xlsl#386855 3 As of 08/22/00 <br />