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1 <br /> Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 05/14/2008 10:26 <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 Method260) <br /> BCL Sample ID: 0806120-02 Client Sample Name: Well#4 Duplicate, 517/2008 2:08:OOPM <br /> Prep Run lnstru- 4C MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quaffs <br /> trans-1,4-Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 ND <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 <br /> Ethanol <250 ug/L 250 EPA 8260 05/09/08 05/12/08 13:04 MGC MS-V5 i BRE066i <br /> ND. <br /> Ethyl t-butyl ether <0.50 ug/L 0.50 EPA 8260 05/09/08 05/12/08 13:04 MGC MS V5 1 BRE0661 N <br /> --- --- -- <br /> .. <br /> __ .. <br /> E0661 ND <br /> 2-Hexanone <10 uglL 10 EPA-8260 05/09/08 05112/08 13:04 MGC MS-V5 1 BR <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 BRE0661 N <br /> Methyl iodide <2.0 ug/L 2.0 EPA-8260 05109/08 05/12/08 13:04 MGC MS V5 1 BRE0661 <br /> —._....... ---- -- <br /> 05!09!08 05/12/08 13:04 MGC MS V5 1 BRE0661 ND <br /> Methyl isobutyl ketone <10 ug/L 10 EPA 8250 <br /> Vinyl acetate <10 ug/L 10 EPA 8260 05!09108 05/i2108 13:04 MGC MS-V5 1 BRE <br /> 0661 ND <br /> 1,2 Dichloroethane-d4(Surrogate) 103 % 76 114 (LCL-UCL) EPA 8260 05109108 05/12/08 13:04 MGC MS-V5 1 B <br /> Toluene-d8(Surrogate) 99.1 % 88 110 (LCL-UCL) EPA 8260 05109/08 05112108 13:04 MGC MS-V5 1 BRED — <br /> _.._ _ _ — <br /> 4-Bromofluorobenzene(Surrogate) 96.5 % 86 115 (LCL-UCL) EPA-8260 05/09/08 05/12/08 13:04 MGC MS-V5 1 — <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 fo4100Atlas CourtBakersfield CA 93308 (661327-4911FAX(661)327 <br /> rexclusive <br /> the <br /> Laboratories, <br /> Inc. <br /> ) no1918kwbelabs com <br /> responsibility for erati achment or third party interpretation. Page 9 of 36 <br />