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WELL CONCENTRATIONS
<br /> Former Texaco Service Station
<br /> 440 W. Charter Way
<br /> Stockton, CA
<br /> MTBEDepth to GW SPH
<br /> Well ID Date TPPH B T E X MTBE 8020 8260 TOC Water Elevation Thickness
<br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (MSL) (ft) (MSL) {ft )
<br /> MW-10 08/22/1996 7,100 3,000 29 10 58 <600 NA 1083 2915 -1832 NA
<br /> MW-10 11/25/1996 6,500 2,600 14 100 46 <300 NA 1083 2600 -1517 NA
<br /> MW-10 02/24/1997 9,800 4,100 24 14 82 <600 NA 1083 2542 -1459 NA
<br /> MW-10 05/19/1997 6,100 2,000 16 87 46 <200 NA 1083 2502 -1419 NA
<br /> MW-10 08/21/1997 5,000 1,600 10 44 28 <200 NA 1083 2605 -1522 NA
<br /> MW-10 11/18/1997 1,100 2,000 29 14 67 <30 NA 1083 2697 -1614 NA
<br /> MW-10 02/09/1998 9,100 3,900 24 11 66 100 NA 1083 2479 -1396 NA
<br /> MW-10 05/2111998 9,900 2,100 11 <10 48 180 NA 1083 2051 -968 NA
<br /> MW-10 08/11/1998 3,400 880 15 60 21 59 NA 1083 2060 -977 NA
<br /> MW-10 11/09/1998 4,400 1,100 <2 5 35 21 49 NA 1083 2179 -1096 NA
<br /> MW-10 02117/1999 <50 0 132 <0 500 <0 500 <0 500 <2 00 NA 1083 2183 -1100 NA
<br /> MW-10 05/25/1999 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NA 1083 2036 -953 NA
<br /> MW-10 08/18/1999 4,120 446 489 <5 00 799 208 NA 1083 2021 -938 NA
<br /> MW-10 11/05/1999 3,300 823 <10 0 <100 145 107 NA 1083 2232 -1149 NA
<br /> MW-10 02/22/2000 2,770 1,040 157 <10 0 330 <100 NA 1083 2013 -930 NA
<br /> "'� w'10 X51161LOE 24It} �- .` Oa 02e �5 ?Oa 801a -2,5a <2. 1 f 1.83 2010,3 :,9t�0 -
<br /> MW-11 05/10/1991 NA NA NA NA NA NA NA 1017 3946 -2929 NA
<br /> MW-11 02/05/1992 130,000 8,500 10,000 2,100 5,900 NA NA 1017 4089 -3072 NA
<br /> MW-11 05/15/1992 42,000 8,000 9,400 1,600 4,900 NA NA 1017 4018 -3001 NA
<br /> MW-11 10/15/1992 NA NA NA NA NA NA NA 1017 4281 -3264 NA
<br /> MW-11 12/17/1992 240,000 45,000 25,000 5,100 11,000 NA NA 1017 4265 -3248 NA
<br /> MW-11 03/18/1993 150,000 13,000 12,000 2,400 7,000 NA NA 1017 4017 -3000 NA
<br /> MW-11 06/10/1993 69,000 5,900 3,400 780 2,400 NA NA 1017 3857 -2840 NA
<br /> MW-11 09/20/1993 120,000 12,000 13,000 2,000 6,300 NA NA 1017 NA NA NA
<br /> Page 15
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