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r <br /> I ' <br /> Tattle G-1 <br /> Companson,of July 2004 through April 2005 Groundwater Monitoring Data to Groundwater-to-Indoor Air Screening Levels <br /> Former Unocal Station No 5098 <br /> 15400 and 5606 Pacific Avenue <br /> i Stockton,California <br /> Sample ID Unit DTW TPH9 BENZENE n-BUTYL sec-B$ 1,2-0CA E8 IPB MTBE NAPHT N-PB TOLUENE 1,2,4-TMB '1,3,ti-TMB XYLENES <br /> ll <br /> Sr x L u L (69}L) u (U91L) (U91L) u L x L Ci&L) (WIL) I u L u L ' u L u L <br /> ' ! <br /> Indoor Par Screen m Level 58 60 18 50 2000 3,940 111 161 000 522 13 000 205 20,900 l 49 100 1 510 1 1 580 16 200 <br /> MW-17 1 € ; <br /> 07!12104 8 35-72 54 28 NO NO ND 2 7 ND NO 24 NO i 0 88 21 1 NO7 7 <br /> 10/18/04 l3 37 40 ND NO NO NO 1 1 5 NO NO 096 ND ND I NO NO NO NO <br /> 01/10/05 B 3616 NO NO NO ND ND ND ND ND ND ND I ND ND ND NO <br /> 04/11/05 B 34 85 ND NO NO ND i ND NO ND ND ND ND i ND ND ND NO <br /> I I <br /> MW-1$ <br /> 07!92!04 A 3578 NO NO NO ND I ND —ND ND r ND ND NO i 12 NO i ND —N—D <br /> 10118!04 A 37 95 NO ND ND NO ND NO ND ND NO ND N❑ NO F NO NO <br /> I <br /> 01110!05 A 36 72 NO ND —ND ND 0 97 ND ND ND ND NO NO ND NO ND <br /> 04/11/05 A 35 33 ND ND ND NO 1 65 ND NO NO NO NO L,ND ND r <br /> NO ND <br /> i F 11 it <br /> S I <br /> MW-111D � 4 <br /> 67112104 B 36 32 7 0 96 ND ND; 1 4 1 5 ND ND NO NO 18 6 0 63 ! ND 11 <br /> 10/18/04 B 38 27 NO ND ND ND, 2 NO NO ND NO ND IND NO , _ ND ND <br /> 01!10105 B 36 66 ND, NO NO ND, 71-0-82 NO ND NO ND ND IND NO NO NO <br /> 04111!05 B 38 35 NO NO NO ND[ 11 82 NO NO ND ND ND NND NDNQ` NO <br /> { I , <br /> MW-19S <br /> 07/12/04 A 35 48 ND ND ND ND I ND ND NO ND ND ND I 0 71 NO t ND ND <br /> 10118!04 A 752 ND ND NQ ND 1 li ND NO NO NO NO ND I`ND ND I ND NO <br /> 01/10/05 A 36'28 ND ND ND ND I ;i NO NO NO ND ND ND _ ! ND ND ND 3 2 <br /> 04/11/05 A 34-190 NO NO - NO ND I II NO NO ND ND ND ND —7—ND —ND <br /> NO NO <br /> MW-19D I , <br /> 1 <br /> 07192!04 8 36 26EN <br /> ND ND+I �I ND NO NO NQ ND ND 1 NO NO NO ND <br /> 10118!04 B 37 97 —NDE—ND ND NDi{ ND NO NO ND NO NO i NO NO ND NO <br /> 01/90/05 B 3644 ND NO ii NQ ND ND ND ND —N D 1 NO NO I NW ND3 <br /> 04111!05 B 35x10ND ND {I ND ND ND ND NO NO i NO NO NO NO <br /> F <br /> MW-21S I I <br /> 07112lD4 A 3600 ND4ND <br /> NO —ND 11 ND ---6-8-6 ND ND ND ND NND ND NO 21 <br /> 10/18/04 A 37 88 —N D ND ND i NDND ND ND NDND01/10/05 A 3650 ND ND NO r ND ND ND ND ND ND IND ND ND ND <br /> 04/11/05 A 3512 NO ND ND r NO NO NO s ND ND NO ' IND NO NO NO <br /> i IND ND 1 ND NO <br /> I 4 <br /> I <br /> OBOIVLO]� _ <br /> 40 <br /> ' <br />