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Laboratories Inc, <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 07/31/2009 10:49 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: Erin Fanning <br /> Volatile Organic ly'rsis (EPA Method8260) <br /> BCL Sample ID: 0909829-01 Client Sample Name: FB@Well#4/CYA#4,7/28/2009 12:54:00PM <br /> Prep Run Instru- QC NIB Lab <br /> Constituent Resuit Units PQL MDL Method Date DateJTime Anal st ment iD Dilution Batch ID Bias Quals <br /> t-Butyl alcohol <10 ug/L 10 EPA-8260 07130/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 ND.. <br /> ._. _..- -....._ ----- _.,_..._ <br /> Carbon disulfide <1.0 ug/L 1-0 EPA-8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 <br /> trans-1,4-Dichioro-2-butene <5.0 ug/L 5.0 EPA 8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 <br /> ND <br /> Dilsopropyl ether <0.50 ug/L 0.50 EPA 8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 ND <br /> Ethanol <250 ug1L 250 EPA 8260 07130/09 07/30/0910:33 MGC MS-V5 1 BSG1716 ND - <br /> ND <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA-8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BS <br /> 2-Hexanone <10 uglL 10 EPA-8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 <br /> _—--------— —_....-_--_--- — <br /> ND <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 07/30/09 07130/09 10:33 MGG MS-V5 1 BSG1716 <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 07/30/09 07/30109 10:33 MGC MS-V5 1 BSG1716 <br /> ND <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 <br /> ND <br /> EPA 8260 07/30!09 07130/09 10:33 MGC MS-V5 1 BSG1716 ND <br /> Vinyl acetate <10 ug/L 10 <br /> 1,2-Dichlorcethane d4(Surrogate) 102 % 76-114 (LGL-UCL) EPA-8260 07/30/09 07130109 10:33 MGC MS-V5 1 BSG1716 <br /> y <br /> Toluene-d8(Surrogate) 99.2 % 88-110 (LCL UCL) EPA-8260 07/30/09 07/30/09 10:33 MGG MS-V5 1 BSG1716 -- <br /> 4-Bromofluorobenxene(Surrogate) 107 % 86-115 (LCL-UCL) EPA-8260 07/30/09 07/30/09 10:33 MGC MS-V5 1 BSG1716 J ----- <br /> 77re results in this report apply to the samples anab}<ed in accordance with the chain of custody document.This analytical report must be reproduced in tts entirety. <br /> All results listed in this report are forthe exclusive use of the submittine party. HC Laboratories,Inc-assumes no resoonsilnlin,for report alteratim Separation,detachment or third parry interpretation. Page 6 Of 36 <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 Code-NAC-445A <br />