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Table A-1 <br /> Comparison of July 2004 through April 2005 Groundwater Monitoring Data to Groundwater-to-Indoor Air Screening Levels <br /> Former Unocal Station No 5098 <br /> 5400 and 5606 Pacific Avenue <br /> Stockton,California <br /> Sample ID Un1t DTW TPH g BENZENE n43UTYL sec-BB 1,2-DCA ES LPB MTBE NAPHT N-PB TOLUENE 1,2,4-TMB 1,3,5-TMS XYLENES <br /> u L u (491L) u u L u L) (u1L) (u L u L u L u L (.L) u L <br /> Indoor Air Screemn Lcvel(ugg 1 5860 1850 2000 3 940 111 161000 522 13,000 205 20 900 49,100 1 510 1 580 16 200 <br /> MW-7 <br /> 07112104 B 3699 ND 4 7 ND ND ND NO NO ND NO NO NO NO NO NO <br /> 10/18/04 B 3885 NO NO NO NO NO NO NO NO ND NO NO NO ND ND <br /> 01/10/05 B 3752 NO NO NO NO NO NO NO NO NO NO NO NO NO NO <br /> 04/11/05 B 3610 ND NO NO NO ND NO NO NO NO NO NO NO NO ND <br /> MW-8D <br /> 07/12/04 D 3754 s 140 40f ND NO NO 75 075 ND 13 13 17 41 NO 71 <br /> 10/18/04 D 3908 410 NO NO 071 NO 45 18 ND 35 NO NO i 7 061 52 <br /> 01110105 D 3731 20 -110 1 062 NO 18 41 NO 82 77 36 36 056 63 <br /> 04/11/05 D 35817- <br /> 581 _ <br /> IM NO NO ND 15 2 9 NO 94 51 2 8 26 NO 5 3 <br /> MW-9 <br /> 07/12/04 B 3815 NO ND ND NO NO NO NO NDND NO NO NO NO NO <br /> WELL DESTROYED <br /> MW-9R <br /> 8/31/042 B — NO NO NO 0 68 NO NO NO NO NO NO NO NO NO <br /> 10/18/04 B 40 37 ND NO ND ND 056 NO NO NO NO ND NO NO NO NO <br /> 01/10/05 B 3885 NO NO NO NO 0 58 NO NO NO ND NO NO NO NO NO <br /> 04/11/05 B 3750 2ilm ND ND NO ND NO NO ND NO NO NO NO NO NO <br /> MW-10 <br /> 07112/04 B 3670 57 26 NO NO ND 36 NO NO 0 82 ND 1 22 ND 14 <br /> 10/18/04 B 3852 NO NO NO ND NO NO NO NO NO NO ND NO NO NO <br /> 01/10/05 B 3703 NO ND NO NO NO ND NO NO NO ND NO NO ND NO <br /> 04111105 B 3560 ND ND NO NO NO NO NO NO NO NO NO NO ND NO <br /> MW-10A <br /> 07/12/04 A 3641 ND NO NO NO ND ND NO NO NO ND NO NO ND NO <br /> 10/18/04 A 3831 NO NO NO ND NO NO NO NO NO NO NO NO NO ND <br /> 01110/05 A 3603 NO NO ND NO NO NO NO NO NO NO NO NO NO ND <br /> 04/11/05 A 3553 NO NO NO NO NO NO ND NO NO NO NO NO NO NO <br /> MW-11 <br /> 07112/04 B 36 45 1CMX0 SM 10 NO NO 380 23 NO 46 630 550 84 1300 <br /> 10/18/04 B 38 20 11M 440 NO 65 NO ND 11 NO 100 ND 860 490 140 1900 <br /> 01/10/05 8 36 74 17013 S64 NO NO NO 18 ND NO ND NO 27 69 NO 95 <br /> 04/11/05 B 3520 =1 NO NO NO N NO NO 9 ND ND1 3 NO mmND <br /> 06940-2A s r"8,qMW <br />