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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 02/10/2010 15:29 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager. Erin Fanning <br /> Volatile OrganicMethod 260) <br /> BCL Sample ID: 1001790-02 Client Sample Name: Well#4/CYA#4,2/3/2010 1:40:OOPM, Rachel Haynes <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Ana! t meat ID Dilution Batch ID Bias Qualls <br /> t-Butyl alcohol ND ug/L 10 9.4 EPA-8260 02/09110 02/09/10 17:33 SVM MS-V9 1 BTBO470 ND— <br /> Carbon disulfide ND ug/L 1.0 0.35 EPA-8260 02/09/10 02/09/10 17:33 SVM MS-V9 1 BTBO470 ND <br /> _ . —. — ....—.. _....—_ _ .. _ —.. _ _.._—.-.-- -.___._ <br /> trans-l,4-Dichioro-2-butene ND ug/L 5.0 1.4 EPA-8260 02/09/10 02/09/10 17:33 SVM MS-V9 1 BTBO470 ND <br /> Diisopropyl ether ND ug/L 0.50 0.19 EPA-8260 02/09/10 02/09/10 17.33 SVM MS-V9 1 BTBO470 ND <br /> -- --— --—..._-_ — _ -- .... _. _—... .......... <br /> Ethanol ND ug/L 250 45 EPA-8260 02/09/10 02/09/10 17:33 SVM MS-V9 1 BTBO470 ND <br /> Ethyl t-butyl ether ND ug/L 0.50 0.18 EPA-8260 02/09110 02/09/10 17.33 SVM MS-V9 1 BT60470 ND <br /> 2-Hexanone ND ug/L 10 3.4 EPA-8260 02/09110 02/09/10 17:33 SVM MS-V9 1 BTBO470 ND <br /> ......._......... <br /> Methyl ethyl ketone ND ug/L 10 2.5 EPA-8260 02/09/10 02/09110 17.33 SVM MS-V9 1 BTBO470 ND <br /> __._._...._..........---- <br /> Methyl iodide ND ug/L 2.0 0.44 EPA-8260 02/09/10 02/09/10 17:33 SVM MS-V9 1 BTBO470 ND <br /> - —. —. .....-- <br /> Methyl isobutyl ketone ND ug/L 10 2.1 EPA-8260 02/09/10 02/09/10 17:33 SVM MS-V9 1 BT80470 ND <br /> Vinyl acetate ND ug/L 10 2.4 EPA 8260 02/09/10 02/09110 17:33 SVM MS-V9 1 BTBO470 N <br /> 1,2-Dichtoroethane-d4(Surrogate) 11 % 76-114 (LCL-UCL) EPA-8260 02/09/10 02/09110 17:33 SVM MS-V9 1 6760470 <br /> Toluene-d8(Surrogate) 100 % 88-110 (LCL-UCL) EPA-8260 02/09/10 02/09/10 17:33 SVM MS-V9 1 BTBO470 <br /> 4-Bromofluorobenzene(Surrogate) 97.2 % 86-115 (LCL-UCL) EPA 8260 02109/10 02/09/10 17.33 SVM MS-V9 1 <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 submitting party. BC:Laboratories,Inc.asstnnes no responsibility for report alteration•separation,detachment or third party interpretation. Page 9 of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com g <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />