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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: 0714915-07 Client Sample Name: FB @ Indoor Faucet, 12/13/2007 9:30: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 ND ug/L 10 9.3 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> --------......1111. ......-.--..--._.._....._........1111.._---------------_1111._1111....--- -1111.._..---- ........._..__..._... . <br /> Carbon disulfide ND ug/L 1.0 0.40 EPA-8260 12/20/07 12/21107 07:44 MGC MS-V5 1 BQL1168 ND <br /> ........................_. ......... . ...--._.._._ __-............._.....-11_1_1_._ ... -- - ... <br /> trans-l,4-Dichloro-2-butene ND ug/L 5.0 2.0 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> . <br /> -- - ---- _-...... _ <br /> ........__ .. ......._..- --..... __ ............ ....._..... ..._ -- - <br /> Diisopropyl ether ND ug/L 0.50 0.21 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> .... .--..1- - - - -- _ ._ ......- -......... ._..__._... ... ___._ .--_. ............_.. --- _._. .. _�_. . -_1111_ _.__.... ... <br /> Ethanol ND ug/L 250 57 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> _—----------1111.. .....__........ 1111 _1111._ ..-- .. — <br /> Ethyl t-butyl ether ND ug/L 0.50 0.22 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> .. ........._.... - -...,.... -- ---...----.................................... _.............. .....___....1......_._-11......... ...___..........._....111----........ ........ <br /> 2-Hexanone ND ug/L 10 2.2 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> ....... -- ....._............. _.... ..... ........._ .................-----._.._..----_._..---1.11.. .1_..—. 11.11...._.—........ _.........--.................-- -- <br /> Methyl ethyl ketone ND ug/L 10 1.6 EPA-8260 12/20/07 12/21/07 07:44 MGG MS-V5 1 6QL1168 ND <br /> -- ..........-_____ .. . _........... .......-- . ..... ----_-. ___—.................._._— .... - ---....... <br /> Methyl iodide ND ug/L 2.0 0.42 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> _.. —.............. ...-........ _ _._...................—. 1111..__— -- -- --.. ....1111 <br /> Methyl isobutyl ketone ND ug/L 10 3.4 EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 ND <br /> _... -- ...... ---- 1111.__ ....._.... 1111_._ ._.._............._ 1_,111. ------------- -........._ 1111.__.—. ..... .......................--.... --- <br /> Vinyl acetate ND ug/L 10 3.4 EPA-8260 12/20107 12/21/07 07:44 MGC MS-V5 1 601-1168 ND <br /> - ..............1.11.--_..__ ...___._..... ...........­_.............. __111.1..----. .........._...................._. .__ <br /> 1,2-Dichloroethane-d4(Surrogate) 114 % 76-114 (LCL-UCL) EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 <br /> ._..._ .. . <br /> Toluene-d8(Surrogate) 98.1 % 88-110 (LCL-UCL) EPA-8260 12/20/07 12/21/07 07:44 MGC MS-V5 1 BQL1168 <br /> ---.......... _ .... - - -- -- ..................._ _..-1111_— _........__................. _ .----- .....-11_1.1 _._--- _......... _..—_1111 <br /> 4-Bromofluorobenzene(Surrogate) 103 % 86-115 (LCL-UCL) EPA-8260 12/20/07 12121/07 07:44 MGC MS-V5 1 BQL1168 <br /> BC Laboratories The results in this report apply to the samples analysed in accordance with the chain of custody 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 thud party interpretation. Page 23 of 35 <br /> 1r 100 ou kers> A_ow {6f�-49�( 27-"ww bs-C%W M r S <br />