Gasoltne
<br /> DTW GWE B T E X MTBE TPN-G Oxygenates/
<br />' Additives
<br /> EPA Method (602)/(8021B)/ (602)/(8021B)/ (602)!(80218)1 (602)1(8021B)/ (602)1(8021 B)/
<br /> 8016m $2608
<br /> WELL ID
<br /> 8020 182608 (8020)/82606 (8020)1 82608 (8020)/82608 (8020)/82608
<br /> TOC ELEV (DATE)
<br /> I MW 2 11/1/1993 5424 3895
<br /> 1529 12/7/1993 5345 3816
<br /> 12129/1993 5390 3861
<br /> 313011994 5080 3551
<br /> I 611711994 1141 35 19 12,111 7 850 ND 250 3,171 NA 102 NA
<br /> 12/8/1994 51 53 3624 4D 000 16,000 1,400 3,900 NA 51 NA
<br /> 3/16/1995 4940 3411 22,000 8,500 210 4,800 NA 53 NA
<br /> 6/1211995 4828 -3299 37,000 9,600 1,000 6,700 NA 79 NA
<br /> 8/1/1996 4369 28 40 18,000 5 000 820 2,900 ND 50 71 NA
<br /> 10/21/1996 4417 2888 170,000 36,000 8,700 27,000 91 50 NA
<br /> 1/1611997 41 92 2663 6,000 1,200 ND 300 ND 600 60 16 NA
<br /> 4/2/1997 3972 2443 4,500 960 400 980 46 12 NA
<br /> 7/18/1997 4066 2537 37,000 7,200 1,500 4,100 230 86 1 NA
<br /> 1012211997 41 12 -2583 26,000 4,100 ND(1,500) 3,700 56 68 ND
<br /> 1/21/1998 3894 2365 5,900 1,100 520 1,400 ND 5 0 17 ND
<br /> 4/23/1998 3613 2084 5,200 1,200 380 1,200 73 19 NO
<br /> 7122/1998 3523 1994 34 000 4,200 ND 3,400 ND ND ND
<br /> 10/23/1998 3544 20 15 37,000 4,900 1,400 5,600 ND 120 ND
<br /> 1/22/1999 3390 -1861 32 000 5,600 1,600 5,500 94 110 ND
<br />' 4/21/1999 3234 1705 1 .2,100 2,700 950 3,700 71 67 ND
<br /> 7/27/1999 3354 1825 1 84,000 11,000 2X0 14,000 130 180 ND
<br /> 10/14/1999 3425 18962 000 3 600 1 800 6,800 300 100 NA
<br /> 1/14/2000 33 15 1786 35,000 2,700 1,300 5,500 81 90 ND
<br /> 4/12/2000 31 56 1627 38,000 2,100 1,500 5,900 ND 61 NA
<br />' 7/11/2000 3259 -1730 64-000 3,500 2,400 8 800 350 71 NA
<br /> 10112/2000 3468 -1939 64 000 3,200 1 2.000 12,000 ND 190 NA
<br /> 1/10/2001 3260 1731 25,400 1,570 1,730 5.330 172 67 NA
<br /> 4/11/2001 31 82 1653 31,000 1,700 2,200 6,300 ND 200 100 NA
<br /> 711912001 3360 1851 29,000 1,500 2,500 6,600 190 103 NA
<br /> 10/26/2001 3487 1958 17,000 870 1,800 4,600 <1 0 62 NA
<br /> 11912002 3395 1866 22,300 1,150 2,350 5,690 <50 64 NA
<br /> 4/11/2002 3281 -1752 12,000 520 1,700 3,300 2,300 40 NA
<br /> 7/3/2002 3365 -1836 18,000 920 2,200 1 4,500 2,900 50 NA
<br /> 10/15/2002 3708 21 79 20,000 970 2,600 4,800 ND(2,000) 69 i NA
<br /> 1/15/2003 3618 2089 15 000 980 2,400 4,100 ND 50 69 <50 <1,300
<br /> 4/17/2003 3517 1988 11,000 490 1,800 2,790 <5 0 57 <2 5 <1,300
<br /> 7/25/2003 3646 21 17 5,300 230 570 1,074 <1 0 44 <1 0-<40
<br /> 11/9/2003 3717 21 88 12,000 1,100 3 600 5,880 <1 0 51 <1 0 <40
<br /> I 1/30/2004 3743 2214 10 000 560 1 800 2,100 <10 41 <1 0 <20,000
<br /> 5/1/2004 3732 -2203 7,800 420 2,100 2,560 <1 0 47 <1 0-<40
<br /> 7/22/2004 3900 2371 9.500 1,000 2,300 3,750 <1 0 40 1 <1 0-<40
<br /> 10/1412004 4049 2520 7,900 1 100 2,500 5,500 <1 0 37 <1 0-<40
<br /> 1/21/2005 39 07 23 78 8 300 1 100 2 500 4 370 <1 0 37 <1 0 <40
<br /> 4/1312005 3848 23 19 11 000 2000 2 400 4 700 <1 0 39 <1 0 <40
<br /> 7/28/2005 3870 2341 9 660 652 2060 4 392 <1 0 34 6 <1 0 <40
<br /> 10/13/2005 3931 24 0211 800 544 1,560 3,206 <1 0 382 <1 0 <40
<br /> 1127/2006 3749 2226
<br /> 11,400 935 1 790 4 403 <1 0 363 c1 0-<40 0
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<br /> P 51000_prJ 1707 Canepa11707F Canepa PaaficlReportslQMR12o06Yist gtmvpend x\Ci 1707 Data Jen 2006 COs Page 2 of 10
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