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i <br /> TBC Laboratories, Inc <br /> TRC Alton Geoscience I Project 5886 <br /> 21 Technology Drive PI oject Number (none] <br /> Irvine CA,92618-2302 Project Manager Anju Farfan Reported 08/30/05 05 51 <br /> Volatile Organic �Anaiysis (EPA Method 8260) <br /> BCL Sample ID* 0508385-16 Client Sample Name 5886, MW-7,D, MW-7D, 8/22/2005 8 45 00AM, Anthony/Melissa <br /> Il Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quais <br /> Benzene NO uglL 050 0 12 EPA-8260 08/25/05 08/27/05 16 26 MGC MS-V5 1 BOH1341 NO <br /> 1 2-Dibromoethane NO uglL 0 50 I 0 1'1 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> 1,2-Dichloroethane NO uglL 0 50 0 25 EPA-8260 08/25/05 08/27/05 1626 MGC MS45 1 BOH1341 NO <br /> Ethylbenzene NO uglL 0 50 0 13 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> Methyl t-butyl ether NO uglL 0 50 015 EPA-8260 08/25/05 08/27/05 16 26 MGC IVIS-V5 1 BOH1341 0 15 <br /> Toluene NO uglL 0 50 015 EPA-8260 08/25/05 48/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> Total Xylenes NO uglL 10 I 040 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> t-Amyl Methyl ether NO ug1L 0 50 0 31 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> t-Butyl alcohol ND uglL 10 II 10 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> Dusopropyl ether NO ug1L 0 50 I 025 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> Ethanol NO uglL 1000 ',I 11D EPA-8260 48/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 NO <br /> Ethyl t-butyl ether NO uglL 0 50 J 0 27 EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 ND <br /> 1,2-Dichloroethane-d4(Surrogate) 102 % 76-114 (LGL-UCL) EPA-8260 08/25/05 08127/05 1626 MGC MS-V5 1 BOH1341 <br /> Toluene-d8(Surrogate) 101 % 88-110 (LCL-UCL) EPA-8260 08/25/05 08/27/05 1626 MGC MS-V5 1 BOH1341 <br /> 4-Bromofluorobe nzene(Surrogate) 103 % 86-115 (LCL-UCL) EPA-8260 08/25/05 08/27105 1626 MGC MS-V5 1 BOH1341 <br /> II <br /> I � <br /> II <br /> I i <br /> � t <br /> BC Laboratories The results in this report apply tol the samples analyzedin accordance with the chain of custody document This analytical report must be reproduced in its enut.ty <br /> 0 All results listed in this report are for the exclusive use of the submitting party BC taboraton umes no responsibility for report alteration separation detachment or third parry interpretation — <br /> 4100 Atlas Court-Bakersfield,CA!93308 a (6W7-4911 • FAX(661)327-1918•www bclabs com • Page 35 of 51 <br />