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:M LABORATORIES, INC. <br /> Herst Associates Project: NCYC Reported: 03/20/2008 12:48 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles, MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA Method260) <br /> BCL Sample 10: 0803475-02 Client Sample Name: Well#4 Duplicate, 3/13/2008 12:05:OOPM, David Vasbinder <br /> Prep Run lnstru- QC MB Lab <br /> Constituent _ Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch lD Bias Quals <br /> t-Butyl alcohol <10 ug/L 10 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> _.. _..---- - -.1-1.1............. _ - - ._ .-.._ _ — <br /> Carbon disulfide <1.0 ug/L 1.0 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> trans-l,4-Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA-8260 03/18/08 03/19/08 02.44 ANO MS V4 1 BRC0903 ND <br /> _-----------------______.. __.-_....-.._—.. —._— _....-..---........_.- <br /> Ethanol <250 ug/L 250 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> ............ <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> ---11.11.....—.------------ --... _.._— -__... _ - -- .-.. .---- <br /> 2-Hexanone <10 ug/L 10 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> —...__ ...._ -------------—........_ --.... ....__...—_.—_-..... — . _--._...__ .......... ._.....---. . _ ... - -._._ -..-.-. - - . <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> _ . ...._...-. —....___......— _._.......— — _..._._ —............ <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> Vinyl acetate <10 ug/L 10 EPA-8260 03/18/08 03119/08 02:44 ANO MS-V4 1 BRC0903 ND <br /> _ ..._. — — ...__..........—----- -- ..__—___ —_..... .... _.._.. __ — -------- _ ........ <br /> 1,2 Dichloroethane-d4(Surrogate) 110 % 76-114 (LCL-UCL) EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 <br /> --- ........... -- ..—....__ ..._—_. - . ... ---- - --------- <br /> Toluene-d8 <br /> - -Toluene-d8(Surrogate) 99.1 % 88-110 (LCL-UCL) EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 <br /> _ <br /> -- - _ ----------...- — _ .. --... —._._ - — - ------- ....... — <br /> 4-Bromofluorobenzene(Surrogate) 98.8 %n 86-115 (LCL-UCL) EPA-8260 03/18/08 03/19/08 02:44 ANO MS-V4 1 BRC0903 <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance with the chain ofcustody 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 I.aboratorics,Inc.assumes no responsibility for report alteration,.<.eparation, detachment or third party interpretation. page 11 of 38 <br /> 4100 Atlas Court•Bakersfield,CA 93308 a(661)327-4911 •FAX(661)327-1918 •www.bclabs.com <br />