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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 06/29/2009 15:28 <br /> 4630 South Highway 94 North Outer Road Project Number: Monthly <br /> Saint Charles, MO 63304 Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 0908251-01 Client Sample Name: Well#4/CYA#4,6/23/2009 12:56:OOPM, Erin Fanning Instru- QC MB Lab <br /> Prep Run <br /> Constituent Resu{t Units PQL MDL Method Date DateMme Analyst meat lD Dilution Batch lD Bias Quals <br /> t-Butyl alcohol <10 ug/L 10 EPA-8260 06/28/09 06/28/09 20:24 MGC MS-V5 1 BSF1839 NO —^_- <br /> Carbon disulfide <1.0 ug/L 1.0 EPA-8260 06/28/09 06/28/09 20:24 MGC MS-V5 1 BSF1839 — — --_ <br /> EPA-826006128/09 06/28/09 20:24 MGC MS-V5 1 BSF1839 <br /> NO <br /> trans-1,4-Dichlom-2-butene <5.0 ug/L 5.0 <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA-8260 8109 06128/09 20:24 MGC MS-V5 1 BSF1839 <br /> NO <br /> — _._.. .....� <br /> <250 ug/L 250 EPA-8260 06/28/09 06/28/09 20:24 MGC MS-V5 1 BSF1839 NO <br /> Ethanol <br /> — _--_--^- -- ---- 06128/09 20:24 MGC MS-V5 1 BSF1839 NO <br /> Ethyl t-butyl ether <0.50 ug/L _— <br /> 0.50 EPA-8260 06/28/09 <br /> EPA-8260 06/28/09'-------.------ NO <br /> — <br /> 2-Hexanone <10 ug/L 10 06/28/09 20:24 MGC MS-V5 1 BSF1839 <br /> EPA 8260 06/28/09 06/28/09 20:24 MGC MS-V5 1 BSF1839 ND <br /> Methyl ethyl ketone <10 uglL 10 <br /> NO <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 06/28/09 06/28/09 20:24 MGC MS V5 1 BSF1 --- —_.__ <br /> —...._ <br /> NO <br /> <10 ug/L 10 EPA-8260 06128109 06/28109 20:24 MGC MS-V5 1 BSF1 <br /> 839 <br /> Methyl isobutyl ketone <br /> Vinyl acetate <10 ug/L 10 EPA-8260 06/28/09 06/28/09 20:24 MGC MS-V5 1 BSF1839 NO — — <br /> ------ — <br /> 1,2-Dichloroethane-d4(Surrogate) 102 % 76-114 (LCL-UCL) EPA-8260 06/28/09 06/28/09 20:24 MGC MS V5 1 BSF1839 — —— <br /> Toluene-d8(Surrogate) 99.3 % 88-110 (LCL-UCL) EPA-8260 8109 06/28/09 20:24 MGC MS-V5 1 —BSF1839 -- <br /> 4-Bromofluorobenzene(Surrogate) 97.0 % 86-115 (LGL-UCL) EPA-8260 06/28/09 06/28/09 20:24 MGC MS-V5 1 BSF183 _ — — <br /> zed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> The results in this report apply to the samples analy <br /> All results listed in this report are for the exclusive use of the aubmittinix party. BC Laboratories,Inc.asstnnes no responsibility for report alteration,separation,detachment or third party interpretation. page 6 of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bolabs.com <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />