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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 Method ) <br /> BCL Sample ID: 0806120-09 Client Sample Name: Trip Blank, 5/7/2008 12:00:OOAM <br /> Prep Run Instru- QC MAB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quals <br /> trans-1,4-Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 05109/08 05112/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> - ---_1.111._ .._. ...... ._---- .. _Y -- -- -— <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> _......._ --- - _..._..... _ -... _..- _....................._. <br /> Ethanol <250 ug/L 250 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> _ . - <br /> __._. -- .. ....-111.1..._-- ..._.. ...-_ ._.- - ...._.._... .- —._. . <br /> 2-Hexanone <10 ug/L 10 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> ......... _..._ <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> _..— -_ -. —11.11. -.— <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> - - ... _-__........_-1111._ ........ --_---- - ._..... - ........_ 1111. __1111._------. _.. <br /> Vinyl acetate <10 ug/L 10 EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 ND <br /> __._.__ .._._. ._.. --.........111_ ...... ....... - <br /> 1,2-Dichtoroethane-d4(Surrogate) 106 % 76-114 (LCL-UCL) EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 <br /> ....... - ---- <br /> Toluene-d8(Surrogate) 98.4 % 88-110 (LCL-UCL) EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 <br /> _. ._.._......._I.----._.- __1111. .._ _.. _..-.....__. . . <br /> 4-Bromofluorobenzene(Surrogate) 94.5 % 86-115 (LCL-UCL) EPA-8260 05/09/08 05/12/08 16:41 MGC MS-V5 1 BRE0661 <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 party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third parry interpretation. <br /> 4100 Atlas Court Bakersfield, CA 93308 (661)327-4911 FAX(661)327-1918 www.bc[abs.com Page 30 of 36 <br />