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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 12/02/2009 12:27 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 0915581-06 Client Sample Name: Well#1 /CYA#1, 11/18/2009 3:54:OOPM,Erin Fanning <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result UnItS PQL Method Date Date/Time Anal ment lD Dilution Batch ID Bias Quals <br /> t-Butylalohol <10 uglL 10 EPA-8260 11/24/09 11/24/0918:04 svm MS-V9 1 BSK1614 ND <br /> Carbon disulfide <1.0 ug/L 1.0 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 <br /> ND <br /> trans-1,4-Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 ND <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 ND <br /> Ethanol <250 ug/L 250 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 ND <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 ND <br /> 2-Hexanone <10 ug/L 10 EPA-8260 11/24/09 11/24/09 1804 svm MS-V9 1 BSK1614 ND <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 ND <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 ND <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 11/24/09 11124/09 18:04 svm MS-V9 1 BSK1614 ND <br /> Vinyl acetate <10 ug/L 10 EPA-8260 11/24/09 11124/09 18:04 svm MS-V9 1 B K1614 <br /> ND <br /> 1,2-Dichloroethane-d4(Surrogate) 114 % 76-114 (LCL-UCL) EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 <br /> Toluene-d8(Surrogate) 98.6 % 88-110 (LCL-UCL) EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 <br /> 4-Bromofiuorobenzene(Surrogate) 94.9 % 86-115 (LCL-UCL) EPA-8260 11/24/09 11/24/09 18:04 svm MS-V9 1 BSK1614 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must he reproduced in its entirety. <br /> All results listed in this reportare for dre exclusive use of the submittinx parry. BC Laboratories,Inc.assumes no responsibility for report alteration.separation,detachment or third partv interpretation. Page 21 Of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com 9 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />