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111111=8 modk Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Reported: 06/0912010 7:31 <br /> 4630 South Highway 94 North Outer Road Project: NCYC <br /> Saint Charles MO 63304 --__ P!pIq Number: <br /> Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method 6260) <br /> Quality Control Report - Method dank Analysis <br /> ' Constituent QC Sample ID MB Result units PQL MDL Lab Quais <br /> QC Batch ID: BTF0238 <br /> Vinyl chloride BTF0238-BLK1 ND ug/L 0.50 0.14 Tota€Xylenes BTF0238-BLK1 ND ug/L 1.0 0.26 <br /> ---_.__...___....._._.__..... <br /> Acetone BTF0238-BLK1 ND ug/L 10 4.6 <br /> Acrylonitrile BTF0238-BLK/ ND ug/L 5.0 1.2 M ._._...____ <br /> t-Amyl Methyl ether — BTF0238-BLK1 ND---- --ug/L 0.50 —0.25 <br /> t-Butyl alcohol BTF0238-BLK1 ND ug/L 10 9.4 <br /> ------------ <br /> Carbon disulfide BTF0238-BLK1 ND ug/L 1.0 0.35 <br /> trans-1,4-Dichioro-2-butene BTF0238-BLK1 ND ug/L 5.0 1.4 <br /> Diisopropyl ether BTF0238-BLK1 ND ug/L 0.50 0.19 <br /> Ethanol BTF0238-BLK1 ND ug/L 250 45 <br /> Ethyl t-butyl ether BTF0238-BLK1 ND ug/L 0.50 —0.18 <br /> ---- - ---- — — ----. _ --------_._.—- --- -- <br /> 2-Hexanone BTF0238-BLK1 ND ug/L 10 3.4 <br /> Methyl ethyl ketone BTF0238-BLK1 ND ug/L 10 2.5 <br /> _..-...--- -- <br /> Methyl iodide BTF0238-BLK1 ND ug/L 2.0 0.44 <br /> Methyl Isobutyl ketone BTF0238-BLK1 ND ug/L 10 2.1 <br /> Vinyl acetate BTF0238-BLK1 ND ug/L. 10 2.4 <br /> 1,2-Dichioroethane-d4(Surrogate) BTF0238-BLK1 112 % 76-114 (LCL-UCL) <br /> ............ <br /> Toluene-d8(Surrogate) BTF0238-BLK1 95.4 % 88 110 (LCL-UCL) <br /> 4-Bromofiuorobenzene(Surrogate) BTF0238-BLK1 103 % 86-115 (LCL-UCL) <br /> 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 the exclusive use of the submitting patty BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 28 of 32 <br />