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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Heist Associates Project: NCYC Reported: 09/16/2009 16:29 <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 Method 8260) <br /> Quality Control Repo - Precision x& Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample T e Sample ID Result Result Added Units RPD Recove RPD Recovery Lab Quals <br /> Benzene BS10696 Matrix Spike 091152835 0 25.815 25.000 ug/L 103 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 25.798 25.000 ug/L 0 103 20 70-130 <br /> Bromodichioromethane BS10696 Matrix Spike 0911528-35 0 25.146 25.000 ug/L 101 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 24.563 25.000 ug/L 2.7 98.3 20 70-130 --------- <br /> Chlorobenzene BS10696 Matrix Spike 0911528-35 0 25.315 25.000 ug/L 101 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 25.480 25.000 ug/L 1.0 102 20 70-130 <br /> Chloroethane BS10696 Matrix Spike 0911528-35 0 26.847 25-000 ug/L 107 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 26.178 25.000 ug/L 1.9 105 20 70-130 <br /> 1,4-Dichlorobenzene BS10696 Matrix Spike 0911528-35 0 24.265 25.000 ug/L 97.1 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 24.448 25.000 ug/L 0.7 97.8 20 70-130 <br /> 1,1-Dichloroethane BSI0696 Matrix Spike 0911528-35 0 26.053 25.000 ug/L 104 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 26.067 25.000 ug/L 0 104 20 70- 130 <br /> 1,1-Dichloroethene BS10696 Matrix Spike 0911528-35 0 25.911 25.000 ug/L 104 70 130 <br /> Matrix Spike Duplicate 0911528-35 0 25.602 25.000 ug/L 1.9 102 20 70-130 --� <br /> Toluene BS10696 Matrix Spike 0911528-35 0 25.747 25.000 ug/L 103 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 25.790 25.000 ug/L 0 103 20 70-130 <br /> Trichloroethene BS10696 Matrix Spike 0911528-35 0 27.169 25.000 ug/L 109 70-130 <br /> Matrix Spike Duplicate 0911528-35 0 27.334 25.000 ug/L 0 1,09 20 70-130 - <br /> 1,2-Dichloroethane-d4(Surrogate) SS10696 Matrix Spike- 0911528-35 -ND - 9.9910 10.000 uglL 99.9 76-114 <br /> Matrix Spike Duplicate 0911528-35 ND 9.5909 10.000 ug/L 95.9 76-114 <br /> Toluene-d8(Surrogate) BS10696 Matrix Spike 0911528-35 ND 10.211 10.000 ug/L 102 88-110 <br /> Matrix Spike Duplicate 0911528-35 ND 10.163 10.000 ug/L 102 88-110 <br /> 98.9 86-115 <br /> 4-Bromofluorobenzene(Surrogate) BS10696 Matrix Spike 091152835 ND 9.8854 10.000 ug/L <br /> Matrix Spike Duplicate 0911528-35 ND 9.8452 10.000 ug/L 98.5 86-115 <br /> Benzene SSID801 Matrix Spike 0912160-01 0 23.687 25.000 ug/L 94.7 70-130 <br /> Matrix Spike Duplicate 0912160-01 0 ?.4.502 25.000 ug/L 3A 98.0-„- -20 - 70-130 - -- <br /> The results to this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report roust be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting partv- BC Laboratories,Inc.assumes no resperossbility for report alteration,separation,detachment or third party interpretation. Pa 31 of 40 <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 />