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LABORATORIES, INC. <br /> Herst Associates Project: NCYC Reported: 03/03/2008 14:50 <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: 0802520-04 Client Sample Name: Well#4/CYA#4,2/22/2008 8:00:OOAM <br /> Prep Run Instru- QC M8 Lab <br /> Constituent Result /!nits P L MDL Method Date Date/Time Analyst ment ID Dilution Batch lD Blas Quads <br /> 1,2-Dichloropropane NO ug/L 0.50 0.41 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> ----- --_..._........ _........_ --- _ _._...._.._._ ----- .... _ __........__ _...-- - -._........_.......-- --- - <br /> 1,3-Dichloropropane ND ug/L 0.50 0.19 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 ND <br /> .._.._-.................................._ _._----.._.....-- ------._......_...---------- ----_._.. <br /> trans-1,3-Dichloropropene NO ug/L 0.50 0.23 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> -.._._..._........ - _..... - -..._ ......-.-._....._....__._.._._. - --.--- -- -- --.-........ - <br /> Ethylbenzene NO ug/L 0.50 0.33 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> -1.._........-- -- _- -...---- -- -- ....._ -._.........._ ._...._..__........------.......__...................._._ ..._._.__.......__.._ ._ .. _ <br /> Hexachlorobutadiene NO ug/L 0.50 0.44 EPA-8260 02/27/08 02128/08 18:36 MGC MS-V5 1 BR131714 NO <br /> --.._..__...._._.._._.__.-..- ---..._..------ ----- ....._.._........ -._.._..__......--- --........ - -....... - -- - _ - <br /> Methylene chloride NO ug/L 1.0 0.27 EPA-8260 02/27/68 02/28/08 18:36 MGC MS-V5 1 SRB1714 NO <br /> --..-_.....--- --._..._-- - -- ---- - --------- -..............-.--...... ..... _ ..__....._-._.......___..- -- - ... ._.-_._- ..................__..._ - -... ------.....-- <br /> Methyl t-butyl ether NO ug/L 0.50 0.26 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> - _..-. ---._-........... -......_._.... ----. . ._...._.. - __. ----- ------- - - --- ---- -- - - 1--11-1--l-..- -- -- -. <br /> Naphthalene NO ug/L 0.50 0.30 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> ---------- <br /> Styrene <br /> _-._--._Styrene NO ug/L 0.50 0.39 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> _.._..._......_-_-._..-._._. -- -- - -- _ _..__- .._..._.....____....... --- •............_..__...._-.__.._.._........ -- <br /> 1,1,2,2-Tetrachloroethane NO ug/L 0.50 0.28 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> -- --- -- _. _........... <br /> Tetrachloroethane1.4 ..............- ._.........._............-.__....__......_.._.- __._ _.._..._..._..... ..-_...-....-- __... .-- --- - - <br /> Toluene ND ug/L 0.50 0.24 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> - - ..._-_.--.-_.-__..._... ................----------..._....._........_.........._....._..- -..__.__....----- - .---- - <br /> 1,2,4-Trichlorobenzene NO ug/L 0.50 0.48 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> _. -. _._„ _...__.............-.._-._-...........-----.__._......_._..... - -- -- -- -- .._._- <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.27 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> - _- -- - ---........--- -_... .............. ___.-.__.._.. - -..__... -- - - ___ _ •.........-....... - <br /> 1,1,2-Trichloroethane NO ug/L 0.50 0.44 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> --......._............._............_.......- <br /> Trichloroethene 0.27 ug/L 0.50 0.19 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO J <br /> _.............._-._..._..._._.. _._................ .. ..-........_.._ _ ..- <br /> Trichlorofluoromethane NO ug/L 0.50 0.28 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> _............ -._....----- --......._........__- _... -._......_..._._ - --.........- - - -...._.......-_....._-..............__ .....__.... ..�_.._.__ _ <br /> 1,2,3-Trichloropropane ND ug/L 1.0 0.50 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <br /> _.. -..__........__ .................. __,.._ ........._..-_......_ - - -------•----..... -.__.._...........--_.......---- -----_--------._._. <br /> Vinyl chloride NO ug/L 0.50 0.34 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BR81714 NO <br /> ---.-.._-... _._.._.._...._....._._...__-_ _.......... ......_....__..._. -- _ _ ._.._...__....._._. ---- -- .._..-- -- -- - ------ - <br /> Total Xylenes NO ug/L 1.0 0.73 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 ND <br /> ------ - - ----------...._ - ....... ......._.. __- _ <br /> Acetone ND ug/L 10 7.4 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 ND <br /> -................-_.__..._.._...._- -...-------.._. --- - ..._. _- -- -- .-- -- - <br /> Acrylonitrile NO ug/L 5.0 1.5 EPA-8260 02/27108 02/28108 18:36 MGC MS-V5 1 BRW714 NO <br /> --- --.._...._._.._.._..._.-..._....................---- - ---- -.......---- .._.._.---_ __.-..._........__......._...--- -- - - -- - <br /> t-Amyl Methyl ether NO ug/L 0.50 0.19 EPA-8260 02/27/08 02/28/08 18:36 MGC MS-V5 1 BRB1714 NO <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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