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Table 1: Groundwater Monitoring Results using EPA methods 8015tH, 8020, and 8260 (pg/L) I , Well ID Date DTW TPH-d TPH-E TPH-m B T E X MTBE ETBE DIPE TAME. TBA 1.2 DCA EDB MW-3 Aug-96 10.40' 610 8060 NA 610 170 96.6 540 1700 sueceed Apr-97 925' 1800 30600NA 3200 2000 1400 1000 14000 S' to 25' Mar-98 7. 10' <500 42000 NA 7290 500 <25 560 29400 Sep-98 10.08' 600 26000 <500 3570 __190 854 1357 13600 Dec-98 10.04' 1300 4300 <500 870 63400 703 3700 _ Feb- 8.97 3600 2500 <500 318 18 _ 110 142 1100 } Jul-99 MIT 260 100 260 26 0,9 3. 1 32 360_ Nov-99 10.57 12000 3700 12000 140 19 87 250 540 Jan-00 9.58' 33000 3700 33000 150 21 120 280 90 �] May-00 9.65' 6800 4100 10000 119 6 69 130 150 Sep-00 10371 6670 10600 <50 701 32 442 828 120 Dec-00 9.97' 6470 1570 <5,000 24 1 18 36 31 Apr-01 9,5T <50 809 <50 175 3 24 28 250 Aug-01 9.85' <50 5980 <50 1410 25 196 258 1300 Nov-Ol 10.20' <50 218 NA 38. 1 0.6 8.8 5.8 110 Apr-02 10.72' 14200 9750 <50 1810 29.7 627 407 370 MW-3R Jun-02 10.95' <50 3310 <50 398 25.6 128 241 2600 sccecocd Oct-02V9.34' <50 0 3790 <56 494 11 .7 235 106 3100 S' to2P Jan-030 1540 <50 307 2.7 53.6 15 5500 Mu--030 798 <50 53.6 1.6 65.7 29.7 2800-� Jun-0350 668 <50 61.2 0.9 23.2 9.5 3100 Oct-0350 431 <50 46 0.7 106 2.9 2300 DeF030984 <50 194 1.5 19.9 6.2 6000 Mar-0450 <50 <50 0.5 <0.3 1 .6 03 96 <2.5 <2.5 7un-04 10.05' <50 <50 <50 0.9 <0.3 1 0:3 1000 3.2 2.9 Sep-04 10.60' NA 167 NA 92 <0.3 4.7 N.3 1000 2.9 2.6 Gmb Sep-04 10.60' NA 2640 NA 916 6.5 13. 1 7.8 43000 79 86 Mar-05 11. 19' NA 342 NA 17.1 0.4 10.6 2.5 3600 <10 11 Jun-05 11.70' NA 450 NA 5.6 <0.5. 5.3 <0.5 1000 <5 <5 Sep-05 11 .38 NA 1100 NA 91 <1 2.8 <2 945 4.4 4.2 39.3 Dec-05 12. 15' NA 4890 NA 640 37.5 367 275 2310 7. 1 <10 15.2 <50 Mar-06 11 .76' NA 749 NA 113 38.4 33.3 35.2 394 <20 <20 <20 <100 J Jun-06 11.86' NA 342 NA 17.7 1.4 15.7 5.9 217 <2 Q <2 <4 Sep_06 10.37 NA 2590 NA 274 7.6 78.6 491 1530 4.2 <4 8.4 49.7 <1 <1 I i 3 I_