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LABORATORIES, INC. <br /> Herst Associates Project: Misc. Samples Reported: 10/23/2007 12:20 <br /> 4630 South Highway 94 North Outer Road Project Number: NCYC <br /> Saint Charles, MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA Method8260) <br /> BCL Sample ID: 0712044-05 Client Sample Name: FIELD BLANK @ INDOOR FAUCET, 10/11/2007 10:05:OOAM <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quals <br /> t-Butyl alcohol <10 ug/L 10 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BQJ1250 ND V11 <br /> --.......... ......--.. - —- <br /> Carbon disulfide <1.0 ug/L 1.0 EPA-8260 10/19/07 10/20/07 13.52 MGC MS-V5 1 BQJ1250 ND <br /> __ _1111.- --- . _ <br /> trans-1,4Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BQJ1250 ND <br /> Diisopropyl ether <0-50 ug/L 0.50 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BQJ1250 ND V11 <br /> ---..___..— --1111 1111_.. <br /> Ethanol <250 ug/L 250 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BOJ1250 ND <br /> _-1111 ....................1111 .... . 1111.-.. -- -- 1111_.. --- ....... —.__.. —... _. <br /> _ 1111 _. --1111.. <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BQJ 1250 ND V11 <br /> —.. _ .1111. ------ _ — _ <br /> 2-Hexanone <10 ug/L 10 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BQJ 1250 ND V11 <br /> 1.1111.......... ...............1111. -- - <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 10/19/07 10/20107 13.52 MGC MS V5 1 BQJ 1250 ND V11 <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 10/19/07 10/20107 13.52 MGC MS-V5 1 BQJ 1250 ND V11 <br /> .-. ...._........ __. .._. ..---- —- --- --.._. --- -- <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 10/19/07 10/20107 13.52 MGC MS-V5 1 BQJ 1250 ND V11 <br /> .._...... .._.__ _ — ---- <br /> Vinyl acetate <10 ug/L 10 EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BOJ1250 ND <br /> ---_._._._._... 1111_. __... ......._ <br /> 1,2-Dichloroethane-d4(Surrogate) 106 % 76-114 (LCL-UCL) EPA-8260 10/19/07 10/20/07 13:52 MGC MS-V5 1 BQJ1250 <br /> —------- ._ _11_11 --.. -- _._._ -- Y --. <br /> Toluene-d8(Surrogate) 98.0 % 88-110 (LCL-UCL} EPA-8260 10/19/07 '10/20107 13:52 MGC MS-V5 1 BQJ1250 <br /> - -----......._. . ...-- _—.—..._...... _1111 _ .. . _ <br /> 4-Bromofluorobenzene(Surrogate) 97.1 % 86-115 (LCL-UCL) EPA-8260 10/19107 '10/20/07 13:52 MGC MS-V5 1 BQJ1250 <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance with the chain efcustody document, This analytical report must be reproduced in its entirely, <br /> All results listed in this report are for the exclusive use of the submitting party.BC Laboratories,Inc,assumes no responsibility for report alteration,separation, detachment or third party interpretation. Page 17 of 32 <br /> 4100 Atlas Court•Bakersfield,CA 93308•(661.)327-4911 •FAX(661)327-1918 >www.bclabs.com <br />