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Laboratories, Inc. k i <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 09/16/2009 16:29 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles, MO 63304 Project Manager: Erin fanning <br /> Volatile Organic Anal (EPA Method 260) <br /> BCL Sample ID: 0912128-03 Client Sample Name: Well#4/CYA DUP,9/11/2009 8:40:OOAM, Rachel Haynes <br /> Prep Run Instru- QC MB Lab <br /> Constituent ReSUIt Units PQL Method Date Datemme Analyst meat ID Dilution Batch ID Bias Quals <br /> t-Butyl alcohol <10 ug/L 10 EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BSI0801 NO <br /> Carbon disulfide <1.0 ug/L 1.0 EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BS10801 NO <br /> trans-1,4-Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 09/15/09 09/16109 01:24 SVM MS-V9 1 BSI0801 NID <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA-8260 09/15/09 09/16/09 01:2.4 SVM MS-V9 1 BS10801 N' <br /> Ethanol <250 ug/L 250 EPA-8260 09115/09 09/16/09 01:24 SVM MS-V9 1 BS10801 NO <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BS10801 NO <br /> —, <br /> 2-Hexanorte <10 ug/L 10 EPA-8260 09/15/09 09116/09 01:24 SVM MS-V9 1 BS10801 ND <br /> ND <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 09/15/09 09/16109 01:24 SVM MS-V9 1 BS10$01 <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 09/15/09 09/16109 01:24 SVM MS-V9 1 BS10801 ND_---. <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BS10801 <br /> NO <br /> Vinyl acetate <10 ug/L 10 EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BS10801 <br /> NO <br /> 1,2-Dichloroethane-d4(Surrogate) 98.3 % 76-114 (LCL-UCL) EPA-8260 09/15/09 09/16/09 01:24 SVM MS V9 1 BS10$01 — — <br /> Toluene-d8(Surrogate) 102 % 88-110 (LCL-UCL) EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BS10801 _— <br /> 4-Bromofluorobenzene(Surrogate) 92.6 % 86-115 (LCL-UCL) EPA-8260 09/15/09 09/16/09 01:24 SVM MS-V9 1 BS10801 _ <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 submittiniz party- BC Laboratories,Inc.assim e's no responsibility for report alteration,separation,detachunew or third party interpretation. Page 12 of 40 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Cade-NAC-445A <br />