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<br /> WELL CONCENTRATIONS
<br /> Shell-branded Service Station
<br /> 6131 Pacific Avenue
<br /> Stockton, CA
<br /> MTBE MTBE Depth to Depth to GW SPH DO
<br /> Well ID Date TPPH B T 1 E 1 X 8020 8260 TOC: Water 1,SPH Elevation Thickness Reading
<br /> (ug/L u /L _(92/L ug/L /L (ug/L u IL JMSL ft ft MSL ft m
<br /> MW-7 07/29/1998 11,000 4,000 230 12601 11610 <500 ND 9989 3412 NA 16577 NA NA
<br /> MW-7 11/2311998 41,000 7,200 6,400 ;,97011 151400 <250 <66 9989 3482 1 NA 16507 NA NA
<br /> MW-7 02124/1999 30,000 5,600 3,800 1182011 13000 1,200 <33 4 9989 3223 NA 16766 NA NA
<br /> MW-7 05/13/1999 38,600 6,540 4,660 1,1901 13490 1,070 <100 9989 3239 ; NA 16750 NA NA
<br /> MW-7 08/20/1999 21,300 2,530 2,600 1`379 11 12300 <250 <20 0 9989 3368 1 NA 16621 NA NA
<br /> MW-7 11/02/1999 21,800 3,980 2,200 1682 II 121160 666 NA 9989 3353 ; NA 16636 NA NA
<br /> MW-7 02/03/2000 32,600 6,070 4,950 164311 13860 2,800 <40 0 9989 31 70 1 NA 16819 NA NA
<br /> MW-7 05/15/2000 21,000 3,300 2,180 1'303 11 1111900 220 <1 00a 9989 3178 1 NA 1 68 11 NA NA
<br /> MW-7 08/16/2000 4,000 828 314 41 5 II lI 149 <100 <20 0 99 89 3500 1 NA 16489 NA NA
<br /> MW-7 11/21/2000 21,900a 4,270a 2,410a 361 I1 2,900a 1,450a <100a 9989 3258 1 NA 16731 NA NA
<br /> MW-7 03/16/2001 27,100 4,640 3,090 63311 13890 406 <10 0 9989 3072 I NA 16917 NA NA
<br /> MW-7 05/11/2001 27,000 3,900 1,900 167011 131200 NA I <20 9989 3077 1 NA 16912 NA NA
<br /> MW-7 08/30/2001 5,300 300 160 1'32 II Il 320 NA > <2 0 9989 3380 1 NA 166 09 NA NA
<br /> MW-7 12/10/2001 38,000 3,800 3,700 1990 11 141200 NA <200 1230 3316 1 NA 1-20 86 NA NA
<br /> MW-7 02/05/2002 d 1,800 36 10 ;3 3 II II 111 NA <50 1230 3238 1 NA 1-2008 NA NA
<br /> MW-7 06/03/2002 27,000 1,900 990 18701 21300 NA <5 0 1230 3206 NA 1-1976 NA NA
<br /> MW-7 09/03/2002 7,200 g 460 13 { 54 it 11 28 NA <2 0 1230 3496 E NA 1-2266 NA NA
<br /> MW-7 11/07/2002 21,000 1,900 470 1460 1',11600 NA <100 1230 3560 I NA 1-2330 NA NA
<br /> MW-7 02/21/2003f 20,000 1,400 290 167011 1,'11100 NA <100 1229 3417 1 NA 1-2188 NA NA
<br /> MW-7 03/14/2003 NA NA NA MA II 11 NA NA NA 1229 3382 1 NA 1-2153 NA NA
<br /> MW-7 05/07/2003 22,000 1,400 280 ;610 11 11870 NA <50 1229 3338 1 NA f-21 09 NA NA
<br /> MW-7 08/26/2003 15,000 760 41 177 11 11260 NA <10 1229 36 05 1 NA 1-2376 NA NA
<br /> MW-7 11/24/2003 31,000 2,000 530 1650 11 0,200 NA , <20 1229 3655 1 NA t-24 26 NA NA
<br /> I 1f !1I 1 1
<br /> MW-8 08/21/2002 NA NA NA INA 1[ Il NA NA NA 1240 3510 1 NA
<br /> 1-2270 NA NA
<br /> MW-8 09/03/2002 9709 <0 50 <0 50 <0 5011 ;<0 50 NA <0 50 1240 35 47 1 NA 1-2307 NA NA
<br /> MW-8 11/07/2002 570 <0 50 <0 50 <0 50 '1 ;�0 50 NA <50 1240 3610 1 NA 1-2370 NA NA
<br /> MW-8 1 02/21/2003 700 e 074 1 <0 50 <0 50;1 <0 50 NA <5 0 12 40 34 62 1 NA 1-22 22 NA NA " 1
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