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Laboratories -Ing. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 06/24/2008 10:54 <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: 0807993-01 Client Sample Name: Weill#4/CYA#4,6/18/2008 1:25:OOPM,David Vasbinder <br /> Prep Run instru- QC RMB Lab <br /> Constituent Result Units PQL MDL Method Date DatelTime Ana( st ment ID Dilution Batch ID Bias Quals <br /> 1,2-Dichioropropane NO ug/L 0.50 0.16 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> 1,3-Dichloropropane NO ug/L 0-50 0.095 EPA 8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 <br /> ND <br /> trans-1,3-Dichloropropene NO ug/L 0.50 fl 13 EPA-8260 06/23/08 06/23/08 15:52 MGC MS V5 1 BRF1328 ND <br /> Ethylbenzene ND ug/L 0.50 0,16 EPA 8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 ND <br /> Hexachlorobutadiene - NO ug/L 0.50 0.26 EPA-8260 06/23/08 06123/08 15:52 MGC MS V5 1 BRF1328 NO <br /> --- -.-------- <br /> Methylene <br /> ---Methylene chloride NO ug1L 1.0 0.27 EPA 8260 06123/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> Methyl t-butyl ether <br /> NO ug/L 0.50 0.22 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> _-.--- <br /> Naphthalene NO ug/L 0.50 0.30 EPA 8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> Styrene NO ug/L 0.50 0.18 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> 1,1,2,2-Tetrachloroethane NO ug/L 0.50 0.28 EPA 8260 06123108 06/23/08 15:52 MGC MS-V5 i BRF1328 NO <br /> Tetrachloroethene NO ug/L 0.50 0.28 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 ND <br /> Toluene NO ug/L 0.50 0,12 EPA-8260 06/23/08 06/23/08 15.52 MGC MS-V5 1 BRF1328 NO <br /> 1,2,4-Trichlorobenzene NO ug/L 0.50 0-31 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.18 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> ND <br /> 1,1,2-Trichloroethane ND ug/L 0.50 0.44 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 <br /> Trichloroethene ND ug/L 0.50 0.16 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 <br /> NO <br /> Trichi o 11 rofl11 uoromethane NO ug/L 0.50 0.22 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> -- -.. <br /> NO <br /> 1,2,3-Trichloropropane NO ug/L 1.0 0.43 EPA-8260 06/23/08 06/23108 15:52 MGC MS-V5 1 BRF1328 <br /> Vinyl chloride NO ug/L 0.50 0.16 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 ND <br /> Total Xylenes NO ug/L 1.0 0.53 EPA 8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> _._ ND <br /> Acetone NO ug/L 10 7.4 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 <br /> Acrylonitrile NO ug/L 5.0 15 EPA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 ND <br /> PA-8260 06/23/08 06/23/08 15:52 MGC MS-V5 1 BRF1328 NO <br /> f-Amyl Methyl eater NO ug/L 0.50 0.19 E <br /> The results in this report apply to the samples analyzed in accordance ivith the chain of custody document.This analytical report mist he reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submittinit party. HC Laboratories,Inc assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> . - .. -. .,........ .1.. �,...ico.�-4 n4 n ,..,-'r.rtohc.-..m Page 5 Ot 36 <br />