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Columbia <br /> Analytical <br /> t <br /> Services "', <br /> An Employee- Owned Company <br />' CAS Project No P2300698 <br /> MTBE/BTEX Analysis <br /> The samples were also analyzed b combined as chromatography/mass s ectromet GC/MS for <br /> Y Y gspectrometry ) <br /> methyl tert-butyl ether, benzene, toluene, ethylbenzene and total xylenes The analyses were performed <br /> according to the methodology outlined in EPA Method TO-15 However, the method was modified to <br /> include the use of Tedlar bags The analyses were performed by gas chromatography/mass spectrometry, <br /> utilizing a direct cryogecuc trapping technique The analytical system used was comprised of a Hewlett <br />' Packard Model 5972 GC/MS/DS interfaced to a Tekmar AutoCan Elite whole au' inlet system/cryogeme <br /> concentrator A 100% Dinethylpolysiloxane capillary column (RT,,-I, Restek Corporation, Bellefonte, <br /> PA)was used to achieve chromatographic separation <br /> The results of analyses are given on the attached data sheets All results a intended Y � ar e ded to be considered in <br /> their entirety, and Columbia Analytical Services, Inc (CAS) is not responsible for utilization of less than <br />' the complete report <br /> r <br /> E <br /> 3 <br /> x, 047 <br /> NFLAC 2665 Park Center Dnve, Suite D Simi Valley, California 93065 ACIL <br /> Moreditedsea/of Excellence <br /> (805) 526-7161 1-800-695-7222 x13 Fax (805) 526-7270 Laboratory <br />