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Labor=estingies Inc. <br /> EnvironmentaLaboratory Since 1949 <br /> Herst Associates Project: NCYC Reported. 06/09/2009 10:27 <br /> 4630 South Highway 94 North Outer Road Project Number: NYCC VOC Samples <br /> Saint Charles,MO 63304 Project Manager: Erin Fanning <br /> Volatile r anio Analysis (EPA Method8264) <br /> Quality Control Repo - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample 11pe Sample ID Result Result Added Units RPD Recoveg RPD RecovenLLijb Quals <br /> Benzene BSF0324 Matrix Spike 0906945-01 0 24.740 25.000 ug/L 99.0 70-130 <br /> Matrix Spike Duplicate 0906945.01 0 23.750 25.000 ug/L 4.1 95.0 20 70-130 <br /> Bromodichloromethane BSF0324 Matrix Spike 0906945.01 0 26.790 25.000 ug/L 107 70-130 <br /> Matrix Spike Duplicate 0906945-01 0 27.250 25.000 ug/L 1.9 109 20 70-130 <br /> Chlorobenzene BSF0324 Matrix Spike 0906945-01 0 24.750 25.000 ug/L 99.0 70-130 <br /> Matrix Spike Duplicate 0906945-01 0 24.020 25.000 ug/L 3.0 96.1 20 70_ 130 <br /> Chloroethane BSF0324 Matrix Spike 0906945-01 0 24.820 25.004 ugtL 99.3 70-130 <br /> Matrix <br /> 0- <br /> Matrix Spike Duplicate 0906945-01 0 26.450 `25.000 ug/L 6.5 106 20 70-130 �_- <br /> 1,4-Dichlorobenzene BSF0324 Matrix Spike 0906945-01 0 25.890 25.000 ug/L 104 <br /> 70-130 <br /> Matrix Spike Duplicate 0906945-01 0 24.720 25.000 ug/L 5.0 98.9 20 70-130 <br /> 1,1-Dichlomethane BSF0324 Matrix Spike 0906945-01 0.15000 25.260 25.000 ug/L 100 - <br /> 130 <br /> Matrix Spike Duplicate 0906945-01 0.15000 24.570 25.000 ug/L 2.3 97.7 20 70-130 <br /> 1,1-Dichloroethene SSF0324 Matrix Spike 0906945-01 0 26.440 25.000 ug/L 106 <br /> Matrix Spike Duplicate 0906945-01 0 26.110 25.00 ug/L 1.9 104 20 70 130 <br /> Toluene BSF0324 Matrix Spike 0906945-01 0 25.160 25.000 ug/L 101 70 <br /> -130 <br /> Matrix Spike Duplicate 0906945-01 0 25.540 25.000 ug/L 1.0 102 20 70-130 <br /> Trichloroethene BSF0324 Matrix Spike 0906945-01 0.33000 24.960 25.000 ug/L 98.5 70-130 <br /> Matrix Spike Duplicate 0906945-01 0.33000 25.190 25.000 ug/L 0.9 99.4 20 70-130 <br /> 1,2-Dichlonrethane-d4(Surrogate) BSF0324 Matrix Spike 0906945-01 ND 11.190 10.000 ug/L 112 76-114 <br /> Matrix Spike Duplicate 0906945-01 ND 10.880 10.000 ug/L 109 76-114 <br /> Toluene-d8(Surrogate)W `BSF0324 Matrix Spike 0906945-01 ND 10.170 10.000 ug/L 102 88-110 <br /> Matrix Spike Duplicate 0906945-01 ND 9.9900 10.000 ug/L _ 99.9 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSF0324 Matrix Spike 0906945-01 ND 10.080 10.000 ug/L 101 86-115 <br /> Matrix Spike Duplicate 0906945-01 ND 9.6200 10.000 ug/L 96.2 86-115 <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 for the exclusive use of the submitting partv. EC 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.bdabs.com <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />