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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 8284) <br /> BCL Sample ID: 0714915:;�71 Client Sample Name: 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 DatelTime Analyst ment ID Dilution Batch ID Bias Quals <br /> 1,2-Dichloropropane ND ug/L 0.50 0.16 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> - -- --- ---.. .- ..... _._.... ---------------............. .................................._1.1...1_........ .. . ................ ....... _ ----._.. __.._. ........ <br /> 1,3-Dichloropropane ND ug/L 0.50 0.15 EPA-8260 12/20/07 12/20/0719:22 MGC MS-V5 1 BQL1168 <br /> __...-........._ .. .... .......... ..................._....11.1 1._.. --....-_,11,11.. -1111-------- ........ ......__.. .._..-.----- ---- <br /> trans-l,3-DichioropropeneND uglL 0.50 0.13 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> - ----. .. _..._. . ....... --- - - 1-,--- ._ ............1 1.1........................----- . --....... ........................"I'll .................-. .. ..._ ------------- <br /> Ethylbenaene ND ug/L 0.50 0.18 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> - - - -......._.._..--. ....._.. . ............... ..-.........._ - 1111 .........1.1.1111. ,. ---.._..- - --- <br /> Hexachlorobutadiene ND ug/L 0.50 0.31 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> ----- _.__....................... .... .1.111 ...... _..._....--------._....11.11.-_............... --.--_ ._..---- ............ -- - ---- <br /> Methylene chloride ND ug/L 1.0 0.27 EPA-8260 12/20/07 12/20/07 19:22 MGC MS V5 1 BQL1168 ND <br /> -- _ - .. ...._..._-................................._...--- -__11.1.1_.. _ _ ... -.11,11. <br /> Methyl 11-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 1 1 ..... ...... ..... <br /> Naphthalene ND ug/L 0.50 0.30 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> - -_ -- - ---- - - .. .. _---1............... --..._ _... .- -- - ------------_1111.,-............. ..... ........ ........- .._----- - - ... .. <br /> Styrene ND ug/L 0.50 0.18 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> -- - --- ---- -- 111.1 --- ..............11----- _-_..-- - .. -- - <br /> 1,1,2,2-Tetrachloroethane ND ug/L 0.50 0.34 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> _ ........ . .... _ _ -_._... ---- _...... --- - 1111 __._ . ..__..... -..._..- --- .. ......... ----- .1111-- <br /> Tetrachloroethene 1.5 ug/L 0.50 0.28 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> ---- ------ - -- --- .... ......-...............- .. .. ....----- ... .. _ --...................... ........................----- ------------------- <br /> Toluene <br /> . .__Toluene ND ug/L 0.50 0.14 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> ... .. ... ..... ......_. ._............__1111 _ .._......................... ......_...............- •- --- -- - - - <br /> 1,2,4-Trichlorobenaene ND ugtL 0.50 0.31 EPA-8260 12/20/07 12/20/07 19:22 MGG MS-V5 1 BQL1168 ND <br /> ..- - ......1.111.. _1111 ... _........._................. <br /> 1,1,1-Trichloroethane ND ug/L 0.50 0.14 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> ................_...................................._......---.............. ...........---.11.11_._.........._...............1__111 <br /> 1,1,2-Trichloroethane ND ug/L 0.50 0.44 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> --- -.__. - ..._....- ............._ . _... ..._ .............. ...._...... . _................ ............_. ................_.... ._ ..-__1_111...... .........._...........-- ---- - - <br /> - -- _......_........... <br /> Trichloroethene 0.22 u /L 0.50 0.20 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND J <br /> - --.. g . ._ . ...__...___ ._. - --- __......---.-1111 <br /> Trichlorofluoromethane ND u _ -.__. <br /> /L 0.50 0.22 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> .........__.._. 11.1-- __.. ....................1.1-1-1-1--l-........... .---------................................_ - --.111 1 .........-.1 ......_.......... .--, <br /> 1,2,3-Trichloropropane ND ug/L 1.0 0.43 EPA-8260 12/20/07 12/20/07 19:22 MGG MS-V5 1 BQL1168 ND <br /> --- __ <br /> ............. -- - -._._... _..__ 1111._.-- .._.... ._ ...................._._................ . ............ .......---. _.._._ __1111 -...---._ --.- <br /> Vinyl chloride ND ug/L 0.50 0.16 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> 111.1...... _. .1...1 11 ........-........... ....._... ........ ----- _. -. .........._....... _....... <br /> Total Xylenes ND ug/L 1.0 0.53 EPA-8260 12220/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> _ .._.......... ... -- -..._..__...... --....__1.111..., --_ --- _-- . .....---- 1.111.._............._..... __ <br /> Acetone ND ug/L 10 7.4 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> --- ----- --- _.._.-1.111._.._. 11.1__.1 ._.._.,._..-- --.....__......._ - - --- .............. ..__111.1 <br /> Acrylonitrile ND ug/L 5.0 2.0 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> ..._.... _ ._.. - ... - -.11_11 --- - ----.- -- ----.1111. .......1111. ... __1111 <br /> t-Amyl Methyl ether ND ug/L 0.50 0.19 EPA-8260 12/20/07 12/20/07 19:22 MGC MS-V5 1 BQL1168 ND <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. 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