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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 05/14/2008 10:26 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA Method8 6 ) <br /> BCL Sample ID: 0806120-02 Client Sample Name: Well#4 Duplicate, 5/7/2008 2:08:OOPM <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch iD Bias Quals <br /> 1,3-Dichloropropane <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 NO <br /> trans-l,3-Dichloropropene <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 N <br /> - -. ...... ----. .- __... _ <br /> Ethylbenzene <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 NO <br /> - -.. _ ----- - <br /> Hexachlorobutadiene <0-50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BR 0 <br /> Methylene chloride <1.0 ug/L 1.0 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 <br /> NO <br /> Methyl t-butyl ether <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 <br /> NO <br /> Naphthalene <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12108 13.04 MGC MS-V5 1 BRE0661 N <br /> -_.-... ..................... - <br /> - -- - _._ _. - - -- <br /> Styrene <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS V5 1 BRE0661 NO <br /> - ---- - -- <br /> 1,1,2,2-Tetrachloroethane <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS V5 1 BRE0661 NO <br /> - _. - <br /> Tetrachloroethene 1.6 ug/L 0.50 EPA-8260 05109/08 05112/08 13:04 MGC MS V5 1 BRE0661 NO <br /> Toluene <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 13:04 MGC MS V5 1 BRE0661 NO <br /> - - .-........- <br /> 1,2,4-Trichlorobenzene <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 NO <br /> _- ------- -- -- - -- <br /> 1,1,1-Trichloroethane <0.50 ug/l- 0.50 EPA 8260 05109108 05112/08 13:04 MGC MS V11 5 1 BRE0661 <br /> - . -_ <br /> NO <br /> 1,1,2-Trichloroethane <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 <br /> -__._. __ __ _ - - _ _ __ ................ <br /> NO <br /> Trichloroethene <0.50 uglL 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 <br /> _..... _,.._._ _ .__. <br /> RE0661 NO <br /> Trichlorofluoromethane <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 B <br /> 1,2,3-Trichloropropane <1.0 ug/L 1.0 EPA-8260 05/09/08 05112/08 13:04 MGC MS-V5 1 BRE0661 <br /> NO <br /> Vinyl chloride <0-50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS V5 1 BRE0661 <br /> NO <br /> - _ ------- _ . - <br /> Total Xylenes <1.0 ug/L 1.0 EPA 8260 05/09/08 05/12/08 13:04 MGC MS V5 1 BRE0661 N <br /> Acetone <10 u /L g 10 E PA-8260 05/09/08 05/12108 13:04 MGC MS V5 1 BRE0661 NO <br /> - - ._- _ - __.. - .....---- <br /> Acrylonitrile <5.0 ug/L 5.0 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 <br /> NO <br /> t-Amyl Methyl ether <0.50 uglL 0.50 EPA 8260 05/09/08 05112/08 13:04 MGC MS-V5 1 BRE0661 NO <br /> t-Butyl alcohol <br /> <10 ug/L 10 EPA 8260 05/09/08 05/12/08 13:04 MGG MS V5 1 BRE0661 NO <br /> Carbon disulfide <1.0 ug/L 1.0 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 NO <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting patty. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third patty interpretation. Page$Of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bolabs.com 9 <br />