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Wlllmmmm <br /> Laboratories .Inc. <br /> ,W- <br /> Environmental Testing Laboratory Since 1949 <br /> Horst Associates Project: NCYC Reported: 01/26/2010 11:31 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method8260) <br /> Quality Control Repo _ Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sam le Type Sample ID Result Result Added Units RPD Recovery RPD RecoveryLabOuals <br /> Benzene BTA1327 Matrix Spike 1001060-01 ND 26.850 25.000 ug/L 107 70-130 <br /> Matrix Spike Duplicate 1001060-01 ND 27.680 25.000 ug/L 3.0 111 20 70-130 <br /> Bromodidtloromethane BTA1327 Matrix Spike 1001060-01 ND 27.750 25.000 ug/L 111 70-130 <br /> Matrix Spike Duplicate 1001060-01 ND 29.640 25-000 ug/L 6.6 119 20 70-130 <br /> Chlorobenzene BTA1327 Matrix Spike 101060-01 ND 25.330 25.000 ug/L 101 70-130 <br /> Matrix Spike Duplicate 1001060-01 ND 25.790 25.000 ug/L 1.8 103 20 70-130 - <br /> Chloroethane BTA1327 Matrix Spike 1001060-01 ND 29-070 25.000 ug/L 116 70-130 <br /> Matrix Spike Duplicate 1001060-01 ND 28.720 25.000 ug/L 1.2 115 20 70-130 <br /> 1,4-Dichlorobenzene BTA1327 Matrix Spike 1001060-01 ND 24.200 25.000 ug/L 96.8 <br /> 70-130 <br /> Matrix Spike Duplicate 1001060-01 NO 25.620 25.000 ug/L 5.7 102 20 70-130 <br /> 1,1-Dichloroothane BTA1327 Matrix Spike 1001060-01 ND 26.860 25.000 ug/L 107 70-130 <br /> Matrix Spike Duplicate 1001060-01 ND 26.930 25.000 ug/L 0.3 108 20 70-130 <br /> 1,1-Dichloroethene BTA1327 Matrix Spike 1001060-01 ND 27.090 25.000 ug/L 108 70-130 <br /> Matrix Spike Duplicate 1001060-01 NO 27.510 25.000 ug/L 1.5 110 20 70-130 <br /> Toluene BTA1327 Matrix Spike 1001060-01 NO 26.850 25.000 ug/L 107 70-130 <br /> Matrix Spike Duplicate 1001060-01 NO 27.790 25.000 ug/L 3.4 111 20 70-130 <br /> Trichloroethene BTA1327 Matrix Spike 1001060-01 0,26000 25.950 25.000 ug/L 103 - <br /> 130 <br /> Matrix Spike Duplicate 1001060-01 0.26000 26.360 25.000 ug/L 1.6 104 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) - BTA1327 Matrix Spike 1001060-01 ND 10.870 10.000 ug/L 109 76-114 <br /> Matrix Spike Duplicate 1001060-01 ND 10.660 10.000 ug/L 107 76-114 <br /> Toluene-d8(Surrogate) BTA1327 Matrix Spike 1001060-01 NO 10.020 10.000 ug/L 100 88-110 <br /> Matrix Spike Duplicate 1001060-01 ND 10.390 10.000 ug/L 104 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BTA1327 Matrix Spike 1001060-01 ND 10.140 10.000 ug/L 101 86-115 <br /> Matrix Spike Duplicate 1001060-01 ND 10.770 10.000 ug/L 108 86-115 <br /> The results in this report apply to the samples anabyzed 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 for the exchove use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. Page 31 Of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />