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II <br /> BC Laboratories, Inc <br /> TRC Alton Geoscience Project 6981 <br /> 21 Technology Drive Project Number [none] <br /> Irvine CA,92618-2302 Project Manager Anju Farfan Reported 07/08/05 10 51 <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID 0506373-02 Client Sample Name 6981, MW-2, MW-2, 6/28/2005 8 00 OOAM, Bast/Mellssa <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Daterrime Analyst ment ID Dilution Batch ID Bias Quals <br /> Benzene 1 5 ug/L 050 012 EPA-8260 07/01/05 07/02/05 0539 svm M5-V4 1 BOG0008 ND <br /> 1,2-D3bromoethane ND ug/L 050 Oil EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 <br /> BOG0008 NO <br /> 1,2-Dlchloroethane ND ug/L 0 50 025 EPA-8260 07/01/05 07/02/05 05 39 svm MS V4 1 BOG0008 NO <br /> Ethylbenzene 022 ug/L 0 50 013 EPA-8260 07/01/05 07/02/05 0539 svm M844 1 BOG0008 ND J <br /> Methyl t-butyl ether ND ug/L 0 50 015 EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 80G0008 ND <br /> Toluene NO ug/L 050 015 EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 BOG0008 ND <br /> Total Xylenes 049 ug/L 10 040 EPA-8260 07/01/05 47/02/05 0539 svm MS-V4 1 BOG0008 ND J <br /> t-Amyl Methyl ether ND ug/L 050 0 31 EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 8000008 ND <br /> t-Butyl alcohol ND ug1L 10 10 EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 BOG0008 ND <br /> Dusopropyl ether NO ug1L 050 025 EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 BOG0008 ND <br /> Ethanol ND ug/L 1000 110 EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 130GO008 ND <br /> Ethyl t-butyl ether ND ug1L 050 027 EPA-8260 07/01/05 07/02/05 05 39 svm MS-V4 1 BOG0008 ND <br /> 1,2-Dlchloroethane-d4(Surrogate) 103 % 76-114 (LCL-UCL) EPA-8260 07101/05 07/02/05 0539 svm MS-V4 1 BOG0008 <br /> Toluene-d8(Surrogate) 963 % 88-110 (LCL-UCL) EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 BOG0008 <br /> 4-Bromofluorobenzene(Surrogate) 93 9 % 86-115 (LCL-UCL) EPA-8260 07/01/05 07/02/05 0539 svm MS-V4 1 BOG0008 <br /> I <br /> I <br /> I <br /> f <br /> BC Laboratories <br /> The results in this report apply to lire samples anaf zed rn <br /> P PP Y P accordance with the chain o cuslod docuu:enl This analytical report mu <br /> .f Y y p sr be rept ced to its eutrret,): <br /> All reaulra hared to this re9port air for the exdkisrve use of the subrniamg parry r3C'labortrornes roes no responsibility For n port alreranon separation,detarhntent ar riurd parry intrrpruaw <br /> 4100 Atlas Court• Bakersfield,CA 93308• (66 -4911 • FAX(661) 327-1918•www bclabs com Page 7 of 46 <br />