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1 Table 1 (cont_) : Groundwater Monitoring Results using EPA methods 8015m,8020,and 8260(µg/L) ' Well 1D Date DTWTPH-d TPH-E MH-inB T E X MTBE ETBE TAME MW-3 I Aug-96 1040- 1 610 8 000 NA 610 1 170 966 540 1 700 J` Screened Apr-97 1 9 25' 1,800 30 000 NA 3,200 2,000 1,400 1,000 1 14,000 t 5'to 25'bg Mar-98 7 10' <500 42 000 NA 1 7,290 1 50L_L <25 560 29 400 Sep-98 10 08' 600 26,000 E <500 3,570 190 854 1,357 13 600 I Dec-98 10 04' 1,300 4,300 <500 870 63 400 701 3,700 � Feb-99 8 97' 3,600 2,500 <500 318 18 110 142 1 100 Jul-99 10 22 260 100 260 1 26 09 3 1 3 2 360 Nn�-99 10 57' 12,000 3,700-1 12,000 1 140 19 87 250 540 Jan-00 1 9 58' 1 33000 3,700 1 33 000 1 150 21 I20 280 90 ' May-00 9 65' 6 800 4,100 1 100001 119 6 69_. ._.I__ 130 150 Sep-00 10 37' 6,670 10,600 1 <50 1 701 32 442 1 828 120 Dec-00 9 97' 6,470 1,570 1 <5,000 1 ;6 31 ' Apr-01 9 57' <50 809 1 <50 175 3 24 1 28 250 Aug-01 985- <50 5,980 <50 1,410 25 196 258 1,300 Nov-01 10 20' <50 218 1 NA 38 1 06 88 58 110 Apr-02 10 72' 14 200 9,750 1 <50 1-810 297 627 407 370 MW-3R Jun-02 , 10 95' <50 3 310 <50 39$ 25 6 128 241 2,600 Screened Oct-02 1094' <50 3,790 <50 494 117 235 106 3,100 5'to 20'b Jan-03 9 34' <50 1,540 <50 307 27 536 15 5 500 Mar-03 10 00' <50 798 <50 536 16 657 297 2,800 Jun-03 10 13' <50 668 <50 612 09 232 9 5 3,100 ' Oct-03 1002 <50 431 <50 46 07 106 2 9 2,300 Dec-03 9 70' <50 984 <50 194 1 5 199 62 6,000 Mar-04 982' <50 <50 <50 05 <0 3 16 03 96 1 <2 5 <2 5 Jun-04 10 05' <50 1 <50 <50 09 <0 3 1 03 1,000_ 3 2 29 ' Sep-04 10 60' NA 167 NA 9 2 <0 3 47 <0 3 1 000 1 3 1 3 Grab Sample Sep-04 i 10 60' NA 2 640 AA 916 65 231 78 43 000 79 86 Mar-05 11 19' NA 342 NA 171 04 106 25 3,600 <10 I 11 T Jun-05 1 70 NA 450 NA 5 6 <0 5 5 3 <0 5 1,000 s ' r�S �w- ' 1 V. 5 q MW-4 Mar-98 62 <500 <50 NA <0 5 <0 5 <0 5 <1 <5 ' Screened Sep-98 96 <SQO 80 <500 1 6 <0 5 16 28 <10 6'to 26'bg Dec-98 9 45' <500 110 1 <500 <5 04 05 14 42 Feb-99 8 36' <500 <50 <500 09 06 <0 5 1 <1 <10 Jul-99 9 81' 85 <50 85 <0 3 <0 3 <Q 3 T<0 3 1 <5 ' Nov-99 1 1014- <50 1 <50 <50 <0 3 <0 3 <0 3 <0 3 1 <5 Jan-00 9 04' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 1 <5 May, 9 04' <63 <50 <500 <0 3 <0 3 <0 3 <0 3 <5 ' Sep-00 9 90' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <5 Dec-00 1 9 37' <50 <50 <5,000 <0 3 <0 3 <0 3 <0 3 <5 Apr-01 9 04' <50 <50 <50 <0 3 <0 3 <03 <0 3 <5 ' Aug-01 941' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <5 Not-01 9 79' <50 <50 NA <0 3 <0 3 <0 3 <0 3 <5 Apr-02 10 19' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <5 Jun-02 10 03' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <5 ' Oct-02 l0 38' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <5 Jan-03 9 11' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <1 Mar-03 9 50' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <1 ' Jun-03 9 62' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <1 Oct-03 9531 <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <1 Dec-03 9 20' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 1 1 Mar-04 9 26' <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <0 5 <0 5 <0 5 ' Jun-04 9501 1 <50 <50 <50 <0 3 <0 3 <0 3 <0 3 <0 5 <0 5 <0 5 2