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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 j Date TPHg B T E X MTBE 8020 8260 TOC Water Elevation Thickness
<br /> (ug/L u /L (u/L (ug/L (ug/L u IL u /L (MSL) ft (MSL) ft
<br /> MW-3 08/11/1998 3,500 290 26 22 56 <5 0 NA 1134 2056 922 None
<br /> MW-3 11/09/1998 5,400 430 82 57 150 <12 NA 1134 21 79 -1045 None
<br /> MW-4 02/05/1992 160,000 17,000 5,400 2,100 4,400 NA NA 1009 4043 -3035 None
<br /> MW 4 05/15/1992 81,000 18,000 6,600 2,000 4,400 NA NA 1009 3959 -2951 None
<br /> MW 4 10/15/1992 NA NA NA NA NA NA NA 10 09 41 93 -31 85 None
<br /> MW-4 12/17/1992 340,000 51,000 38,000 6,500 18,000 NA NA 1009 4208 -3200 None
<br /> MW-4 03/18/1993 140,000 20,000 5,200 1 2,200 4,900 NA NA 1009 3977 2969 None
<br /> MW 4 06/10/1993 110,000 8,600 1,600 2,100 3,000 NA NA 1009 3786 -2778 None
<br /> MW-4 09/20/1993 120,000 23,000 38,000 2,900 7,100 NA NA 1009 NA NA NA
<br /> MW 4 10/22/1993 NA NA NA NA NA NA NA 1009 3885 -2876 None
<br /> MW 4 12/22/1993 NA NA NA NA NA NA NA 1009 3835 -2826 None
<br /> MW-4 03/16/1994 78,000 14,000 1,100 1 2,100 1,200 NA NA 1009 3770 -2761 Sheen
<br /> MW-4 06/15/1994 20,000 19,000 1,200 1,200 950 NA NA 1009 3722 -2713 None
<br /> MW-4 09/22/1994 49,000 12,000 1,800 1,100 1,200 NA NA 1009 3864 -2855 None
<br /> MW 4 12/01/1994 57,000 17,000 3,500 1,700 2,100 NA NA 1009 3878 -2869 Sheen
<br /> MW 4 02/16/1995 64,000 16,000 8,500 1,900 4,100 NA NA 1009 3580 -2571 None
<br /> MW 4 05/17/1995 52,000 15,000 5,800 1,500 3,200 NA NA 1009 31 12 -21 03 None
<br /> MW 4 08/15/1995 32,000 12,000 840 800 1,000 <1000 NA 1009 3071 -2062 None
<br /> MW 4 11/16/1995 61,000 18,000 5,500 1,800 3,600 NA NA 1009 31 05 -2096 None
<br /> MW-4 02/27/1996 62,000 15,000 6,800 1,700 3,900 NA NA 1009 2800 -1791 None
<br /> MW-4 05/15/1996 14,000 4,800 1,300 1 450 860 NA NA 1009 2620 -1611 None
<br /> MW-4 08/22/1996 4,200 1,100 27 48 110 <200 NA 1009 2693 -1684 None
<br /> MW 4 11/25/1996 5,600 1,900 310 110 1 180 <300 NA 1009 2700 -1691 None
<br /> MW-4 02/24/1997 21,000 5,000 2,200 660 1,800 <600 NA 1009 2338 -1329 None
<br /> MW 4 05/19/1997 640 150 94 36 41 <30 NA 1009 2297 1288 None
<br /> MW-4 08/21/1997 1,000 46 14 16 18 <80 NA 1009 2402 -1393 None
<br /> MW-4 11/18/1997 210 14 1 0 1 08 09 1 <30 1 NA 1 1009 1 2505 1 -1496 1 None
<br /> MW-4 02109/1998 810 130 27 35 51 <30 NA 1009 2280 -12 71 None
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