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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 (EP A Method ) <br /> BCL Sample ID: 0806120-03 Client Sample Name: Well#1/CYA#1, 5/7/2008 2:25:OOPM, David Vasbinder <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 /> trans-1,4-Dichioro-2-butene <5.0 ug/L 5.0 EPA 8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 BRE0661 ND <br /> -- - __ ............... - _ ..._ ...-.__ <br /> RE0661 ND <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 e <br /> - <br /> Ethanol <250 ug/L 250 EPA 8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 BRE0661 ND <br /> - - _._. --------- _ <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 BRE0661 ND <br /> - .. - -— ---- <br /> 2-Hexanone <10 ug/L 10 EPA-8260 05/09108 05/12/08 13:35 MGC MS-V5 1 BRE0661 <br /> -...._.- -......... <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 05109108 05112/08 13:35 MGC MS-V5 1 BRE0661 ND <br /> _... -- <br /> _._.�._-... _-.................-- <br /> .0 ug/L 2.0 EPA 8260 05/09/08 05/12/08 13:35 MGC MS V5 1 BRE0661 <br /> Methyl iodide <2 <br /> ----- - .. _ ...... _- - -- - <br /> - - - - <br /> ND <br /> Methyl isobutyl ketone <10 ug/L 10 EPA 8260 05/09/08 05/12/08 13:35 MGC MS V5 1 BRE0661 <br /> - ------------ <br /> Vinyl <br /> -._Vinyl acetate <10 ug/L 10 EPA 8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 BRE0661 <br /> - <br /> 1,2-Dichioroethane-d4(Surrogate) 105 % 76-114 (LCL-UCL) EPA-8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 BRE0661 <br /> Toluene-d8(Surrogate) 99.5 % 88-110 (LCL-UCL) EPA-8260 05/09/08 05/12/08 13:35 MGC MS-V5 1 BRE0661 <br /> ........ - -- -. _ - - .... <br /> 4-Bromofiuorobenzene(Surrogate) 96.3 % 86-115 (LCL-UCL) EPA-8260 05/09/08 05/12/08 13:35 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 submittint;party. BC Laboratories,Inc.assiunes no responsibility for report alteration,separation,detachtnent or third party interpretation. Pae 12 Of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bciabs.com 9 <br />