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WELL CONCENTRATIONS
<br /> Former Texaco Service Station
<br /> 440 W Charter Way
<br /> Stockton, CA
<br /> MTBE Depth to GW SPH
<br /> Well ID ; Date TPPH B T I ELX
<br /> MTBE 8020 8260 TOC Water Elevation Thickness
<br /> I (ug/L) (ug/L) (ug/L) (ug/L) ) (ug/L) (ug/L) (MSL) (ft ) (MSL) (ft )
<br /> MW-4 12101/1994 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 3112 -21 03 None
<br /> MW-4 1 08115/1995 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 3105 -2096 None
<br /> MW-4 02127/1996 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 1,300 450 860 NA NA 1009 2620 -1611 None
<br /> MW-4 08122/1996 4,200 1,100 27 48 110 <200 NA 1009 2693 -1684 None
<br /> MW-4 11/2511996 5,600 1,900 310 110 180 <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 11/1811997 210 14 10 08 09 <30 NA 10 09 2505 -1496 None
<br /> MW-4 02/0911998 810 130 27 35 51 <30 NA 1009 2280 -1271 None
<br /> MW-4 05/21/1998 5,200 1,000 24 38 30 200 NA 1009 1858 -849 None
<br /> MW-4 08/11/1998 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-4 02/17/1999 <50 0 <0 500 <0 500 <0 500 <0 500 <2 00 NA 1009 2003 -994 None
<br /> MW-4 05/25/1999 230 35 14 63 30 63 NA 1009 1879 -870 None
<br /> MW-4 08/18/1999 <50 0 <0 500 <0 500 <0 500 1 <0 500 1 <2 50 NA 1009 1921 -912 None
<br /> MW-5 05/10/1991 NA NA NA NA NA NA NA 1027 3947 -2921 None
<br /> MW-5 02105/1992 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 10115/1992 NA NA NA NA NA NA NA 1027 4265 -3229 None
<br /> MW-5 12117/1992 52,000 12,000 1,700 1,200 2,000 NA NA 1027 4266 -3240 None
<br /> MW-5 03/1811993 42,000 6,500 570 940 1,700 NA NA 1027 4012 -2986 !None
<br /> MW-5 06/1011993 52 000 6,500 400 700 1,600 NA NA 1027 3851 -2825 None
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