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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 Method8260) <br /> BCL Sample ID: 0714915-01 Client Sample/dame: Well 4/CYA#4, 12/13/2007 8:47:OOAM <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Datefflme Analyst ment ID Dilution Batch ID Bias Quals <br /> t-Butyl alcohol ND ug/L 10 9.3 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BOLI 168 ND <br /> -.. <br /> _ ... __ --- .... ... ---- --. ........ .......... _.- _--1111....--- ...1111_ - �— <br /> Carbon disulfide ND ug/L 1.0. 0.40 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 168 ND <br /> _. <br /> ....... -.-—._. ..----.... ........... .. .. ----- --- __ ---- ............... . <br /> trans-1,4-DicNoro-2-butene ND ug/L 5.0 2.0 EPA-8260 12/20/07 12/20/07 1922 MGC MS-V5 1 BQL1168 ND <br /> -_�- -- - ---- -- ....1111..._ 1111._.--... -- ............... ........................__ - ... 1111_ — .-- <br /> Diisopropyl ether ND ug/L 0.50 0.21 EPA-8260 12/20/07 12/20/07 19:22 MGC MS V5 1 BQL1168 ND <br /> __........ - -- - _1_1_1_1 .. .---- ---1.111.........._..._ ........... -- ._. _ __ ........-- - __ _- <br /> Ethanol ND ug/L 250 57 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> _......-- - ---11.1.1._- ........................................................... ................_..... 1.... _ __ __-.----------—.. ._._ _ ............... <br /> - <br /> Ethyl t-butyl ether ND ug/L 0.50 0.22 EPA 8260 12/20/07 12/20/07 19.22 MGC MS-V5 1 BQL1168 ND <br /> _..... ..._......... 1......111-.1 1.11._.... ........._ . --- _1111-.......... ... _1111_._._ -- —---- ....--... . <br /> 2-Hexanone ND ug/L 10 2.2 EPA-8260 12/20/07 12/20/07 19:22 MGG MS-V5 1 BQL1168 ND <br /> - .----........- —_ .. .__ _1111... -- . .. .. .. -...—_—_11.1_1 <br /> Methyl ethyl ketone ND ug/L 10 1.6 EPA-8260 12/20/07 12/20/07 19.22 MGC MS-V5 1 1301-1168 ND <br /> Methyl iodide ND ug/L 2.0 0.42 EPA-8260 12/20107 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> --- 1..1.1..1........ — 1111. <br /> Methyl isobutyi ketone ND ug/L 10 3.4 EPA 8260 12/20/07 12/20/07 19:22 MGC MS V5 1 801-1168 ND <br /> _ _...._ _ .... - --- __ .._.. ..._. 1.11 1 ............ .... ....._........... -- -- .................. —1111._ --- —--- <br /> Vinyl acetate ND ug/L 10 3.4 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 601-1168 ND <br /> ..... ......... _.. ............... ...... .. ......_..........._......__ -- _.._ _.. ... ._....... <br /> 1,2-Dichloroethane-d4(Surrogate) 114 % 76-114 (LCL-UCL) EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 <br /> ._............_. ..... .. _..._—_1111_.—... _._ _. --_. ---.. <br /> Toluene-d8(Surrogate) 97.5 % 88-110 (LCL-UCL) EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 <br /> --.11.11_...... -1111 --- - ...11.11 ........111.1".1 ......,.. __1.111_-- - -1.1__1____1_..._ .. — — -- — <br /> 4-Bromofluorobenzene(Surrogate) 101 % 86-115 (LCL-UCL) EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance will?the chain of custody document.This analytical report must be reproduced in its entirely. <br /> All results fisted 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 5 of 35 <br /> ! ! ! ! ,Ent I 00AJJM colud-A-Ilaker CA •(6 7-49 i i •FAX 327-"www,bclab5.cm ! ! ! ! <br />