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:151.- 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: 0802520-05 Client Sample Name: Well#4 Duplicate,2/22/2008 8:00:00AM <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quats <br /> t-Butyl alcohol ND ug/L 10 8.6 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> _--- - - - - --- -- <br /> -------- -- -- - - <br /> Carbon disulfide NO ug/L 1.0 0.40 EPA-8260 02/27108 02128/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> ....._-.-...---._............_..........--...................................._. -------........._......__._..........__ _-._..........-.._----- ----......-..................... <br /> .._..----- <br /> trans-l,4-Dichloro-2-butene ND ug/L 5.0 2.0 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> -_ - <br /> _._..__ _.--...-._..-....._..--- .. ... - - ...........- -- - .............. ---...._....................._.,....._............-...___...._ - _.. _...__ _ <br /> Diisopropyl ether NO ug/L 0.50 0.18 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> ------- --------------._..__.___.._._.._. .......-..... _ ._.........._ _-._.--.__._- ---- <br /> Ethanol NO ug/L 250 57 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 ND <br /> -.-._......- -.._...._...-_.. _ _....... - -- _._......................___ .-._.._.....----._._._._._.._....,...--.-.........._.....- ---- - --.........._ - <br /> Ethyl t-butyl ether NO ug/L 0.50 0.22 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BR81714 NO <br /> _..._..__...._..-- --.._.......----.._... -- -... --- ----.....-.._.._..._-------- --..__..---- _.,...- _.._....._..........._. .__....._- <br /> 2-Hexanone ND ug/l. 10 2.5 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> Methyl ethyl ketone ND ug/L 10 1.6 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> -......._...._..---- --------.--------------- - - - <br /> Methyl iodide NO ug/L 2.0 0.42 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> ..._.._.......... <br /> . - -- ._ ._...__.._,._,.,_.-..,__.....,..-....__-. _......... ___--- <br /> Methyl isobutyl ketone NO ug/L 10 3.4 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BR81714 NO <br /> ._ <br /> _...... ..._ . ........... <br /> .__...-------__..- _._._..-- - ........._ . . <br /> ....._.._. ------ ......._....................... <br /> ...-.-..- --- -- ---- ---- _ --- <br /> Vinyl acetate NO ug/L 10 3.1 EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 NO <br /> ..............----------------------------------------- -- _...._._ _._......_....._..._..------......__.._..._..__._...-- <br /> 1,2-Dichioroethane-d4(Surrogate) 102 % 76-114 (LCL-UCL) EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 <br /> —..-...._._----._..........._._.__.... ....._.............---.----------...._..................._.._...__._..._._............._.__..._ - _._._.,......_._..._._.........,._............--- -........................----- <br /> Toluene-d8(Surrogate) 99.8 % 88-110 (LCL-UCL) EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 <br /> --- --._....._..... _ ------------- ---------------_-......._.._....----- -- _......_ - .._..__ _ <br /> 4-Bromofluorobenzene(Surrogate) 99.9 % 86-115 (LCL-UCL) EPA-8260 02/27/08 02/28/08 21:10 MGC MS-V5 1 BRB1714 <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 report are for tate exclusive use of the submitting party.BC Laboratories,Inc,assumes no responsibility for report alteration,separation, detachment or third party interpretation. Page 17 of 35 <br /> 4100 Atlas Court-Bakersfield,CA 93308-(661)327-4911 -FAX(661) 327-1918-www.belabs.coni <br />