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= ® _ _ M = i = 1=1 = = ® ® i M <br /> Herst Associates Project: Misc.Samples Reported: 05/23/2007 13:27 <br /> 4630 South Highway 94 North Outer Road Project Number: NCYC Well Sample <br /> North Outer Rd. Project Manager: David Vasbinder <br /> Saint Charles,MO 63304 <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 0705704-04 Client Sample Name: Water supply#4 Duplicate,5/15/2007 11:50:OOAM,David Vasbinder <br /> Prep Run Instru. QC MB Lab <br /> Constituent Result Units PQL MDL Method Date oatelTime Analyst ment to Dilution Batch to Blas 4uals <br /> trans-1,2-Dichloroethene NO ug/L 0.50 0.18 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,2-Dichlompropane NO ug/L 0.50 0.12 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,3-Dichloropropane NO ug/L 0.50 0.15 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> trans-1,3-Dichloropmpene ND ug/L 0.50 0.11 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Ethylbenzene ND ug/L 0.50 0.094 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Hexachlorobutadiene ND ug/L 0.50 0.28 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Methylene chloride NO ug/L 1.0 0.16 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 V11 <br /> Methyl t-butyl ether NO ug/L 0.50 0.13 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Naphthalene ND ug/L 0.50 0.27 EPA-8260 05/16/07 05/16/0717:07 SVM MS-V4 1 BQE0962 <br /> Styrene NO ug/L 0.50 0.15 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,1,2,2-Tetrachloroethane ND ug/L 0.50 0.22 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Tetrachloroethene 0.21 ug/L 0.50 0.11 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BOE0962 J <br /> Toluene ND ug/L 0.50 0.12 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,2,4-Trichlombenzene ND ug/L 0.50 0.18 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.27 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,1,2-Trichloroethane NO ug/L 0.50 0.12 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Trichloroethene ND ug/L 0.50 0.13 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BOE0962 <br /> Trichlorofluoromethane ND ug/L 0.50 0.14 EPA-8260 05/16/07 06/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> 1,2,3-Trichioropmpane ND ug/L 1.0 0.42 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Vinyl chloride NO ug/L 0.50 0.14 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BOE0962 <br /> Total Xylenes ND ug/L 0.50 0.31 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> Acetone NO ug/L 10 6.2 EPA-8260 05/16/07 05/16/07 17:07 SVM MS-V4 1 BQE0962 <br /> BC Laboratories The rrodis in this report apply to the samples analyzed in accordance wish the chain of custody document.This analytical report must he reproduced in iv entirety. <br /> Page 13 of 24 <br />