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Laboratories Inc. <br /> tEnvironmental Testing Laboratory Since 1949 <br /> Herst Associates Reported: 06/09/2010 7:31 <br /> 4630 South Highway 94 North Outer Road Project: NCYC <br /> Saint Charles, M0 63304 Project Number: [none] <br /> Project Manager, Erin Fanning <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 1007291-04 J Client Sample Name: FB @ well#4/CYA#4,5/26/2010 8:56:OOAM, Erin Fanning <br /> MB Lab <br /> Constituent Result Units._ __ PQL MDL Method Bias Quals Run# <br /> Tetrachloroethene 0.19 ug/L 0.50 0.13 EPA-8260 ND J <br /> Toluene NO ug/L 0.50 0,093 EPA-8260 NO <br /> 1,2,4-Trichlorobenzene NO ug/L 0.50 0.17 EPA-8260 NO 1 <br /> - - - ---- - --- -- ..- - - ---- -- -..._------- ------- <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.081 EPA-8260 NO <br /> ' 1,1,2-Trichloroethane NO ug/L 0.50 0.21 EPA-8260 NO <br /> Trichloroethene NO ug/L 0.50 0.13 EPA-8260 NO 1 <br /> Trichlorofluoromethane NO ug/L 0.50 0.11 EPA-6260 NO 1 <br /> 1,2,3-Trichloropropane NO ug/L 1.0 0.30 EPA-8260 NO 1 <br /> Vinyl chloride NO ug/L 0.50 0.14 EPA-8260 NO <br /> Total Xylenes NO ug/L 1.0 0.26 EPA-8260 NO <br /> Acetone NO ug/L 10 4.6 EPA-8260 NO 1 <br /> Acrylonitrile NO ug/L 5.0 1.2 EPA-8260 NO 1 <br /> - - ----- --- -...__-.- - -- ---- - _...-- -- --------- <br /> t-Amyl <br /> ---t-Amyl Methyl ether NO ug/L 0.50 0.25 EPA-8260 NO 1 <br /> ------------ <br /> t-Butyl alcohol NO ug/L 10 9.4 EPA-8260 NO 1 <br /> ........... - _ -- ----- - -- ----....- - - <br /> Carbon disulfide NO ug/L 1.0 0.35 EPA-8260 NO <br /> trans-1,4-Oichloro-2-butene NO ug/L 5.0 1.4 EPA-8260 NO <br /> Oiisopropyl ether NO ug/L 0.50 0.19 EPA-8260 NO 1 <br /> Ethanol NO ug/L 250 45 EPA-8260 NO <br /> Ethyl t-butyl ether NO ug/L 0.50 0.18 EPA-8260 NO 1 <br /> 2-Hexanone NO ug/L 10 3.4 EPA-8260 NO <br /> Methyl ethyl ketone NO ug/L 10 2.5 EPA-8260 NO <br /> ------------.._-_-- -___--- - <br /> ----._._ <br /> Methyl iodide NO ug/L 2.0 0.44 EPA-8260 NO <br /> Methyl isobutyl ketone - _ NO ug/L 10 2.1 EPA-8260 NO ------ ------ ----- <br /> Vinyl acetate NO ug/L 10 2.4 EPA-8260 NO 1 <br /> 1,2-Dichloroethane-d4(Surrogate) 101 % 76-114 (LCL-UCL) EPA-8260 <br /> ' Toluene-d8(Surrogate) 92.9 -% 88_110 (LCL-UCL) EPA-8260 - --- ----_--- q - - <br /> 4-Bromofluorobenzene(Surrogate) 89,7 % 86-115 (LCL-UCL) EPA-8260 1 <br /> ' Run QC <br /> [Lft�# Method Prep Date Date/Time Analyst Instrument Dilution Batch ID <br /> 1 EPA-8260 06/02/10 06103/10 03:16 MGC MS-V5 1 BTF0199 <br /> The results in this report apply to the samples analyzed in accordance with the chain ojcustody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party AC Laboratories,Inc.assumes no responsibility for report alteratioq separation,detachment or third party interpretation <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 14 of 32 <br />