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M ® M M M M M M M M M ® M M M M i <br /> Herst Associates Project: Misc.Samples Reported: 05/23/2007 13:31 <br /> 4630 South Highway 94 North Outer Road Project Number: (none] <br /> North Outer Rd. Project Manager: David Vasbinder <br /> Saint Charles,MO 63304 <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 0705833-06 Client Sample Name: SOUTH STORAGE TANK SEDIMENT SAMPLE,5/17/2007 4:00:OOPM,David Vasbinder <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias Quals <br /> 1,1,1,2-Tetrachloroethane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,1,2,2-Tetrachloroethane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Tetrachloroethene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Toluene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,2,3-Trichlorobenzene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,2,4-Trichlorobenzene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 V11 <br /> 1,1,1-Trichloroethane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,1,2-Trichloroethane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Trichloroethene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Trichlorofluoromethane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,2,3-Trichloropropane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,1,2-Trichloro-1,2,2-thfluoroethane ND mg/kg 0.0050 EPA-8260 05/18/07 05/18107 13:21 JSK MS-V2 1 BQE1067 <br /> 1,2,4-Trimethylbenzene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,3,5-Trimethylbenzene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Vinyl chloride ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Total Xylenes ND mg/kg 0.010 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> p-8 m-Xylenes ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> o-Xylene ND mg/kg 0.0050 EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 1,2-Dichloroethane-d4(Surrogate) 97.8 % 70-121 (LCL-UCL) EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> Toluene-d8(Surrogate) 98.8 % 81-117 (LCL-UCL) EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> 4-Bromofluorobenzene(Surrogate) 96.8 % 74-121 (LCL-UCL) EPA-8260 05/18/07 05/18/07 13:21 JSK MS-V2 1 BQE1067 <br /> BC Laboratories 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 /> Page 21 of 42 <br />