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WELL CONCENTRATIONS `
<br /> Shell-branded Service Station
<br /> 6131 Pacific Avenue
<br /> Stockton, CA
<br /> Wic #204-7525-0104
<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 /L u l (ug/L (ug/L (ug/L (u /L MSL ft ft MSL ft m
<br /> MW-3 02/2811996 100,000 11,000 19,000 2,200 13,000 NA NA 10165 4560 NA 5605 NA NA
<br /> MW-3 05/16/1996 27,000 3,800 6,800 1,000 6,600 1,200 NA 10165 4385 NA 5780 NA 48
<br /> MW-3 08/23/1996 56,000 5,500 9,000 <500 3,400 <2,500 NA 101 65 4500 NA 5665 NA NA
<br /> MW-3 11/26/1996 19,000 420 900 290 1,800 <500 NA 1 101 65 4380 NA 5785 NA NA
<br /> MW-3 02/26/1997 19,000 3,100 1,400 290 1,700 <250 NA 10165 4126 NA 6039 NA NA
<br /> MW-3 0611011997 570 37 30 37 13 49 NA 10165 4070 NA 6095 NA NA
<br /> MW-3 08/22/1997 4,300 290 640 87 670 87 NA 10165 41 90 NA 5975 NA NA
<br /> MW-3 10/09/1997 1,400 11 41 13 100 17 NO 10165 4198 NA 5967 NA NA
<br /> MW-3 02/10/1998 24,000 3,900 3,300 540 2,300 860 ND 101 65 3920 NA 6245 NA NA
<br /> MW-3 05/20/1998 4,100 710 400 130 440 240 ND 101 65 3586 NA 6579 NA NA
<br /> MW-3 0712911998 <5,000 970 120 79 210 <250 30 101 65 3619 NA 6546 NA NA
<br /> MW-3 11/23/1998 370 64 13 42 33 28 20 101 .65. 3542 NA 6623 NA NA
<br /> MW-3 02/24/1999 30,000 4,400 5,100 680 3,600 1,400 <83 4 10165 3385 NA 6780 NA NA
<br /> MW-3 05/13/1999 996 155 324 224 692 388 <2 00 101 65 3298 NA 6867 NA NA
<br /> MW-3 08/20/1999 <50 0 <0 500 <0 500 <0 500 1 22 <5 00 <2 00 10165 3520 NA 6645 NA NA
<br /> MW-3 1 11/02/1999 7,490 273 550 196 1,160 618 NA 10165 3493 NA 6672 NA NA
<br /> MW-3 02/03/2000 <50 0 219 131 <0 500 162 <2 50 NA 101 65 3337 NA 6828 NA NA
<br /> MW-3 05/1512000 <50 0 291 247 0 568 271 <2 50 NA 10165 3148 NA 7017 NA NA
<br /> MW-3 08/1612000 <50 0 0 594 <0 500 <0 500 <0 500 <5 00 <1 00 101 65 3460 NA 6705 NA NA
<br /> MW-3 11121/2000 109 1 97 0 879 <0 500 525 103 <1 00a 101 65 3415 NA 6750 NA NA
<br /> MW-4 10/10/1997 6,800 1,900 990 150 430 170 57 10027 4222 NA 5805 NA NA
<br /> MW-4 02/10/1998 92,000 22,000 17,000 2,100 5,100 2,500 260 10027 3783 NA 6244 NA NA
<br /> MW-4 05/2011998 70,000 17,000 12,000 1,400 3,500 <2,500 NO 10027 3485 NA 6542 NA NA
<br /> MW-4 07/29/1998 23,000 8,800 1,300 730 700 <500 170 10027 3503 NA 6524 NA NA
<br /> MW-4 11/23/1998 44,0x0 12,000 7,200 970 2,300 <1,000 160 10027 34 42 NA 6585 NA NA
<br /> MW-4 02124/1999 49,000 12,000 8,000 990 2,800 1,300 180 100 27 1 3255 NA 6772 NA NA
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