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r r rr r� rs r r r ® r r r rr r ® r <br /> l>Ir� Laboratories Ini-- <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: 0807993-04 Client Sample Name: FB @ Well#1,6/18/2008 1:45:OOPM, David Vasbinder <br /> Prep Run lnstru- QC MB Lab <br /> Constituent Result Units PQL MDL. Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quals <br /> t-Butyl alcohol ND ug/L 10 9.2 EPA-8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 ND <br /> Carbon disulfide ND ug/L 1.0 0.40 EPA-8260 06/23/08 06/23/08 17.25 MGC MS-V5 1 BRF1328 ND <br /> trans-1,4-Dichloro-2-butene ND ug/L 5.0 1.4 EPA 8260 06/23/08 06/23/08 17.25 MGC MS-V5 1 BRF1328 N <br /> Diisopropyl ether ND ug/L 0.50 0.18 EPA-8260 06/23/08 06/23/08 17.25 MGG MS V5 1 BRF1328 ND <br /> Ethanol ND ug/L 250 57 EPA-8260 06/23/08 06/23/08 17.25 MGC MS-V5 1 BRF1328 N <br /> Ethyl t-butyl ether ND ug/L 0.50 0.22 EPA-8260 06/23/08 06/23/08 17:25 MGC MS V5 1 BRF1328 ND <br /> --- <br /> 2-Hexanone ND ug/L 10 2.5 EPA-8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 N <br /> Methyl ethyl ketone ND ug/L 10 2.4 EPA 8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 N <br /> Methyl iodide ND ug/L 2.0 0.42 EPA-8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 ND <br /> Methyl isobutyI ketone ND ug/L 10 3.4 EPA-8260 06/23/08 06/23/08 17-25 MGC MS-V5 1 BRF1328 ND <br /> Vinyl acetate ND ug/L 10 2.5 EPA 8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 <br /> 111,2-Dlchloroethane-d4(Surrogate) 105 % 76-114 (LCL-UCL) EPA 8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 <br /> Toluene-d8(Surrogate) 98.8 % 88-110 (LCL-UCL) EPA 8260 06/23108 06/23/08 17:25 MGC MS V5 1 BRF1328 <br /> _ <br /> 4-Bromofiuorobenzene(Surrogate) 106 % 86-115 (LCL-UCL) EPA-8260 06/23/08 06/23/08 17:25 MGC MS-V5 1 BRF1328 <br /> The results in this report apply to 1he samples analyzed in accordance with the chain of custodv 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. BC Laboratories,Inc.assumes no responsibilib,,for retort alteration,separation,detachment or third party interpretation. <br /> _ _ Page 15 of 36 <br />