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WELL CONCENTRATIONS
<br /> Texaco-branded Service Station
<br /> 440 W Charter Way
<br /> Stockton, CA
<br /> MTBE Depth to GW SPH
<br /> Well ID ! Date TPHg B T E X MTBE 8020 8260 TOC Water Elevation Thickness
<br /> (ug/L u /L u /L u /L (u/L (u/L (u/L MSL ft MSL ft
<br /> MW 4 05/21/1998 5,200 1,000 24 38 30 200 NA 1009 1858 -849 None
<br /> MW 4 08/11/1996 360 33 <0 5 <0 5 <0 5 25 NA 1009 1878 -869 None
<br /> MW 4 11/09/1998 190 _ .40 <0 50 <0 50 052 <2 5 NA 1009 1985 -976 None
<br /> MW-5 05/10/1991 NA NA NA NA NA NA NA 1027 3947 -2921 None
<br /> MW-5 02/05/1992 66,000 7,000 810 690 1,400 NA NA 1027 4086 -3060 None
<br /> MW-5 05/15/1992 28,000 6,900 900 690 1,500 NA NA 1027 4013 -2987 None
<br /> MW 5 10/15/1992 NA NA NA NA NA NA NA 1027 4265 -3229 None
<br /> MW 5 12/17/1992 52,000 12,000 1,700 1,200 2,000 1 NA NA 1027 4266 -3240 None
<br /> MW 5 03/18/1993 42,000 6,500 570 940 1,700 NA NA 1027 4012 -2986 None
<br /> MW-5 06/10/1993 52,000 6,500 400 700 1,600 NA NA 1027 3851 -2826 None
<br /> MW-5 09/20/1993 180,000 9,800 14,000 4,000 28,000 NA NA 1027 NA NA NA
<br /> MW 5 10/22/1993 NA NA NA NA NA NA NA 1027 3960 -2933. None
<br /> MW-5 12/22/1993 NA NA NA NA NA NA NA 1027 3956 -2929 None
<br /> MW-5 03/16/1994 32,000 4,100 600 820 1,500 NA NA 1027 3888 -2861 Sheen
<br /> MW-5 06/15/1994 15,000 8,300 610 610 1,000 NA NA 1027 3842 -2815 None
<br /> MW 5 09/22/1994 49,000 8,400 1,100 590 1,300 NA NA 1027 3993 -2966 None
<br /> MW-5 12/01/1994 36,000 7,100 950 730 1,500 NA NA 1027 3990 -2963 None
<br /> MW-5 02/16/1995 15,000 3,800 120 380 420 NA NA 1027 3680 -2653 None
<br /> MW-5 05/17/1995 18,000 5,600 150 610 660 NA NA 1027 3228 -2201 None
<br /> MW-5 08/15/1995 23,000 6,800 300 620 710 <500 NA 1027 31 95 -21 68 None
<br /> MW 5 11/16/1995 21,000 8,200 240 500 460 NA NA 1027 3230 -2203 None
<br /> MW-5 02/27/1996 24,000 8,800 580 630 750 NA NA 1027 2930 -1903 None
<br /> MW-5 05/15/1996 14,000 6,100 72 230 170 NA NA 1027 2755 -1728 None
<br /> MW-5 08/22/1996 8,700 3,500 42 78 65 <600 NA 1027 2824 -1797 None
<br /> MW 5 11/25/1996 15,000 6,000 160 250 230 <2000 NA 1027 2840 -1813 None
<br /> MW-5 02/24/1997 12,000 5,900 120 210 180 <600 NA 1027 2466 -1439 None
<br /> MW 5 05/19/1997 2,000 890 15 16 22 <300 NA 1027 2410 -1383 None
<br /> MW 5 1 08/21/1997 1 30,000 1 11,000 1 390 1 390 460 <2000 1 NA 1027 1 2403 -13 76 None
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