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�� Miir �r■i>� ■�� stw� alp ws w� �w i� ws �� �� �� �� l� awe an■�w <br /> Yabf-9 <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 Unit DTW TPH9 BENZENE n-BUTYL sec-BB 1,9.DCA EB IPS MTBE NAPHT N-PS TOLUENE 1,$4TMB 1,3,5-TM8 XYLENES <br /> t (.L) u u L u Lu L u L u L u L u L (U91L) (U91L) u L (U91L) (U91L <br /> Indoor Air Screcnm Level u 58 60 18 50 2 000 3 940 111 161,000 522 13 000 205 20 900 44 100 1 510 1 580 16,200 <br /> MW-30 <br /> 08/31/04 B — NO NO NO NO 16 NO ND ND ND NO 24 NO ND 19 <br /> 10118!04 B 39 20 ND NO NO NO NO NO ND NO NO ND NO ND NO ND <br /> 01/10/05 B 3781 NO NO NO NO NO NO NO NO NO ND NO NO NO ND <br /> 04/11/05 B 3646 NO NO NO NO NO NO NO NO NO NO NO NO NO NO <br /> MW-31 <br /> 01/10/05 B 37 55 NO ND ND ND ND NO NO NO ND NO NO NO NO NO <br /> 04111/05 B 3640 NO NO NO NO ND NO NO NO NO ND NO ND NO NO <br /> MW-32 <br /> 01/10/05 B 3784 ND NO NO NO NO NO NO NO NO NO NO NO NO NO <br /> 04/11/05 B 3690 NO NO NO ND NO NO NO NO NO ND NO ND NO ND <br /> I <br /> AS-26 <br /> 07/12/04 B 3655 NO NO NO ND NO NO NO NO 11 NO NO 055 NO NO <br /> 10/18104 B 38 30 NO 095 NO ND NO NO NO NO 67 NO ND 093 ND 58 <br /> 01/10/05 B 3678 NO NO ND ND NO NO NO NO ND NO ND NO ND ND <br /> 04/11/05 B 35 37 NO NO NO ND NO NO NO NO ND NO ND NO NO NO <br /> Notes <br /> DTW =Depth to Water ES =Eth ibenzene N-PB =n-Propylbenzene ND=Not Detected <br /> 1,2,4-TMB =1,2,4-Tnmeth (benzene IPS =Isopropylbenzene NAPHT=Naphthalene <br /> 1,2-DCA=1,2-Dichloroethans MTBE I=Methyl Tertiary Butyl Ether seCrBB =sec-Butylbenzene <br /> 1 3 5-TMB =1 3,5-Tnmeth ibenzene N-BUTYL =n-Butylbenzene TPH =Total Petroleum Hydrocarbon as Gasoline <br /> 06940-293 707 <br /> EkSR COrparabon <br />