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- Laboratories, Inc. <br /> Environmental Testing Laboratory Sind 1949 <br /> Herst Associates Project: NCYC Reported: 11/19/2008 15:33 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Reno - Precision & Accuracy <br /> Control t.imIts <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sam le T Sant le ID Result Result Added Units RPD Recovery RPD Recovery Lab Quals <br /> Benzene BRK1062 Matrix Spike 0815119-04 ND 24.468 25.000 ug/L 97.9 70-130 <br /> Matrix Spike Duplicate 0815119-04 ND 24.780 25-000 -ug/L 1.2- 99.1 - 20 70-130--- <br /> -. -....-.---------- 95.0 70-130 <br /> Bromodichloromethane BRK1062 Matrix Spike 0815119-04 ND 23.752 25.000 ug/L 1 0 94 1 20 70-130 <br /> Matrix Spike Duplicate 0815119-04 ND 23.521 25.000 ug/L -.-- - <br /> Chlorobenzene BRK1062 Matrix Spike 0815119-04 ND 23.897 25.000 ug/L 95.6 70-130 <br /> Matrix Spike Duplicate 0815119-04 NO 24.999 25.000 ug/L v.4.5 100 _--20 70-130 <br /> ___-_ <br /> -..___..._-.---- ---._. _.-_�.--_._-._______--------__-...,_..�_.. 96.3 70-130 <br /> Chloroethane BRK1062 Matrix Spike 0815119-04 ND 24.067 25.000 ug/L <br /> Matrix Spike Duplicate 0815119-04 ND 24.089 25.000 ug/L J0.1 - 96.4 20 70-130 <br /> -- - <br /> 97.0 70-130 <br /> 1,4-Dichkxobenzene BRK1062 Matrix Spike 0815119-04 ND 24.252 25.000 ug/L <br /> Matrix Spike Duplicate0815119-04 ND 25.013 25.000 ug/L 3.0 a 100 -20 70-130--.... <br /> 100 70-130 <br /> 1,1-Dichloroethane BRK1062 Matrix Spike 0815119-04 ND 25.006 25.000 ug/L <br /> Matrix Spike Duplicate0815119-04 ND 25.280 25.000 ug/L 1.0 101 20 70 130 <br /> 102 70-130 <br /> 1,1-Dic hioroethene BRK1062 Matrix Spike 0815119-04 ND 25.384 25.000 ug/L 1 0 103 20 70-130 <br /> Matrix Spike Duplicate 0815119-04 ND 25.849 25.000 ug/L <br /> Toluene BRK1062 Matrix Spike 0815119-04 ND 23.839 25.000 ug/L 95.4 70-130 <br /> Matrix Spike DupliCate0815119-04 ND 23.541 25.000 ug/L 1.3 94.2 20 70-130 -- - <br /> Trichloroethene BRK1062 Matrix Spike 0815119-04 ND 24.080 25.000 ug/L 96.3 70-130 <br /> Matrix Spike Duplicate 0815119-04 ND 23.720 25.000 y ug/L 1.5 94_9 -20- 70-130 <br /> 147 76-114 <br /> 1,2-Dichloroathane-d4(Surrogate) BRK1062 Matrix Spike 0815119-04 ND 10.670 10.000 ug 104 76-114 <br /> Matrix Spike Duplicate 0815119-04 ND 10.369 10.000-,--ug/L <br /> 99.6 88-110 <br /> Toluene-d8(Surrogate) BRK1062 Matrix Spike 0815119-04 ND 9.9570 10.000 ugh <br /> Matrix Spike Duplicate 0815119-04 ND- -9.9315 10.000 - ug/L 99.3 -- 88-110 - -- <br /> -_ 95.4 86-115 <br /> 4-Bromofluorobenzene(Surrogate) BRK1062 Matrix Spike 0815119-04 ND 9.5429 10.000 ug/L 101 86••115 <br /> Matrix Spike Duplicate 0815119-04 ND 10.066 10.000 ugtL <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 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: Califomia-ELAP Cert cation Number 1186; Nevada Administrative Code-NAC-445A <br />