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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 E X 8020 8260 TOC Water SPH Elevation Thickness Reading
<br /> ug/L u IL ug/L ug/L u IL u IL ug/L MSL ft ft MSL ft m
<br /> MW-6 11/21/2000 571 754 417 1 76 571 585 <1 00a 101 16 3270 NA 6846 NA NA
<br /> MW-6 03/16/2001 396 1 18 <0 500 <0 500 <0 500 <2 50 NA 101 16 3195 NA 6921 NA NA
<br /> MW-6 05/11/2001 900 25 29 1 7 46 NA <5 0 101 16 3208 NA 6908 NA NA
<br /> MW-6 08/30/2001 1,400 36 1 2 50 66 NA <0 50 10116 3495 NA 6621 NA NA
<br /> MW-6 12/10/2001 1800 b 26 1 8 1 0 45 NA <5 0 1358 1 3435 NA -2077 NA NA
<br /> MW-6 02/05/2002 d 42,000 3200 3100 990 3300 NA <50 1358 3354 NA -1996 NA NA
<br /> MW-6 06/03/2002 1,300 78 10 074 1 2 NA <5 0 1358 3322 NA -1964 NA NA
<br /> MW-6 09/03/2002 2,200 g 1 1 <0 50 <0 50 <0 50 NA <0 50 1358 3617 NA -2259 NA NA
<br /> MW-6 11/07/2002 1,200 g 93 1 26 75 56 NA <50 1 1358 3681 NA -2323 NA NA
<br /> MW-6 02/21/2003 2,400 e 1 5 059 1 2 10 NA <50 1358 3540 NA -21 82 NA NA
<br /> MW-6 03/14/2003 NA NA NA NA NA NA NA 1358 3502 NA -21 44 NA NA
<br /> MW-6 0510712003 3,300 e, g 1 2 <0 50 <0 50 <0 50 NA <5 0 1358 3459 1 NA -2101 NA NA
<br /> MW-7 10/10/1997 3,000 280 26 <2 5 130 19 ND 9989 4220 NA 5769 NA NA
<br /> MW-7 02/10/1998 67,000 7,900 13,000 1,200 7,300 940 ND 9989 3755 NA 6234 NA NA
<br /> MW-7 05/2011998 38,000 8,600 13,000 1,200 6,900 <250 ND 9989 3447 NA 6542 NA NA
<br /> MW-7 07129/1998 11,000 4,000 230 260 610 <500 ND 9989 3412 NA 6577 NA NA
<br /> MW-7 11/23/1998 41,000 7,200 6,400 970 5,400 <250 <66 9989 3482 NA 6507 NA NA
<br /> MW-7 02/24/1999 30,000 5,600 3,800 820 3,000 1,200 <33 4 9989 3223 NA 6766 NA NA
<br /> MW-7 05/13/1999 38,600 6,540 4,660 1,190 3,490 1,070 <100 9989 3239 NA 6750 NA NA
<br /> MW-7 08/20/1999 21,300 2,530 2,600 379 2,300 <250 <20 0 9989 33 68 NA 6621 NA NA
<br /> MW-7 11/02/1999 21,800 3,980 2,200 682 2,160 666 NA 9989 3353 NA 6636 NA NA
<br /> MW-7 02/03/2000 32,600 6,070 4,950 643 3,860 2,800 <40 0 9989 31 70 NA 6819 NA NA
<br /> MW-7 05/15/2000 21,000 3,300 2,180 303 1,900 220 <1 00a 9989 3178 NA 6811 NA NA
<br /> MW-7 08116/2000 4,000 828 31 4 415 149 <100 <20 0 9989 3500 NA 6489 NA NA
<br /> MW-7 11/2112000 21,900a 4,270a 2,410a 361a 2,900a 1,450a <100a 9989 3258 NA 6731 NA NA
<br /> MW-7 03/16/2001 27,100 4,640 3,090 633 3,890 406 <10 0 9989 3072 NA 6917 NA NA
<br /> MW-7 05/11/2001 27,000 1 3,900 1 1,900_t 670 1 3,200 1 NA <20 99 89 3077 NA 6912 NA NA
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