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LABORATORIES, INC. <br /> Herst Associates Project: NCYC Reported: 01/03/2008 10:44 <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 Method 8260) <br /> BCL Sample ID: 0714915-03 J Client Sample Name: Well 1 /CYA#1, 12/13/2007 9:05:OOAM <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Anal t ment ID Dilution MOW Bias Quals <br /> t-Butyl alcohol ND ug/L 10 9.3 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> ----..-_ _.... - - ---- - 11.11 -.,_,..__- -- - ........_.__. <br /> Carbon disulfide ND uglL 1A 0.40 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> ... ... .._..... .... .. --- - -----. _ 1111.... ............. .. ..--- ---- 1111..._._ .................111.._-..-...--- <br /> trans-l,4-Dichloro-2-butene ND ug/L 5.0 2.0 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BOLI ND <br /> .........9.. _... -- ._._._-._._.__.-. _.._. --_------ - - ----1.111 _ <br /> Diisopropyl ether ND u /L 0.50 0.21 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> _ 9 ..- ... .,.... - ------ 111.1_... ---.. . .._...._ ._-....._..-_............__._.. . - <br /> Ethanol ND u /L 250 57 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> _ .._..__ 1111... __. ... ---- -- ----11.1.1. .1 1....1.....-_ . ....._.._ ..........-1111----._....... --....... ._...........___.... ............. ...........------1.111_—. <br /> Ethyl 1-butyl ether ND ug/L 0.50 0.22 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> - -- 1111 111_1 _ --. 1111.. .. 1111 ----- -• ---_ ............----- -_._--..-- --- .._1111_. .__............ ...... .. <br /> 2-Hexanone ND ug/L 10 2.2 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> __..._.....__-...........-___._... _......__.... .... _.._...,.,.---- -- ._......................---- ---........ .1 .......11 1-- _.. <br /> Methyl ethyl ketone ND ug/L 10 1.6 EPA-8260 12/20/07 12/21/07 05:40 MGC MS V5 1 BQL1168 ND <br /> ----- ---- _ _... 1.11.1..._...--.....-----•...---- . __..._ __.__._._. - .1......._.............. ...........................--- ................. _......._- _-1111 <br /> Methyl iodide ND ug/L 2.0 0.42 EPA-8260 12/20/07 12121/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> __._.. ..._.--_--....... _. - _.. 11 11 -- .......... ..._.... ..----- __.-_-- - _ ...- -_...--- 11,------_-...... <br /> Methyl isobutyl ketone ND ug/L 10 3.4 EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 ND <br /> --_1 ._.............111 .-.........__..._.-_... --._._ -- -- ............. <br /> Vin........ _. -- - _....._........- 11,11. - .......... . -- - ---------- - ---...._ _....---.............----1111 <br /> 1,2 Dichloroethane-d4(Surrogate) 111 % 76-114 (LCL-UCL) EPA-8260 12/20/07 12/21/07 05:40 MGG MS-V5 1 8QL1168 <br /> ....- - -_ ..... -_... ...._ . - . ......_.._ ._.. -.._.. ................ <br /> Toluene-d8(Surrogate) 100 % 88-110 (LCL-UCL) EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 <br /> ...................................----........._...-_---...._. .......--...._.....-.._......_....__......------- _ -- _- �_....-- .- <br /> 4-Bromofluorobenzene(Surrogate) 100 % 86-115 (LCL-UCL) EPA-8260 12/20/07 12/21/07 05:40 MGC MS-V5 1 BQL1168 <br /> BC Laboratories 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 reportare for the exclusive use of the submitting party.BC Laboratories,Inc,assumes no responsibility for report alteration,separation, detachment or third party interpretation. page 11 of 35 <br /> — <br /> =41 00io Co aker"CA •(W7-4$JJ ,FAX 327"•WVQWabs.i& <br />