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Lrxboratoriesenc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 07/31/2009 10:49 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles, MO 63304 Project Manager. Erin t=anning <br /> Volatile Organic Analysis (EPAMethod 8260) <br /> Quality control Repo - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample TYP2 Sample ID Result Result Added Units RPD Recovery RPD Recovery Lab Quals <br /> Benzene BSG1716 Matrix Spike 0909829-01 0 21.890 25.000 ugtL 87.5 70-130 <br /> Matrix Spike Duplicate 0909829-01 0 22.540 25.000 ugtL 2.9 90.2 ^20-70-130 - <br /> 107 <br /> 70-130 <br /> Bromodichloromethane BSG1716 Matrix Spike 0909829-01 0 26.770 25.000 ug/L <br /> Matrix Spike Duplicate 0909829-01 0 26-340 25.000 ug/L 1.9 105 20 70-130 <br /> Chiorobenzene _- BSG1716 Matrix Spike 0909829-01 0 25.010 25.000 ug/L 100 70-130 <br /> Matrix Spike Duplicate 0909829-01 0 25.100 25.000 ug/L 0 100- -- 20 70 130 - <br /> Chloroethane BSG1716 Matrix Spike 0909829-01 0 23.890 25.000 ug/L 95.6 7 • <br /> 130 <br /> Matra Spike Duplicate 0909829-01 0 24.620 25.000 ug/L 3.0 98.5 20 70-130 <br /> -...-...._.-._..._-__..-.._.---... ......-__..._-- �-_.., <br /> -- 103 70-130 <br /> 1,4-Dichlorobenzene BSG1716 Matrix Spike 0909829-01 0 25.820 25.000 u <br /> Matrix Spike Duplicate 0909829-01 0 25.550 25.000 ug/L 1.0 102 20 70-130 --- <br /> 1,1-Dichloroethane BSG1716 Matrix Spike 0909829-01 0 20.120 25.000 ug/L <br /> 80.5 70-130 <br /> Matrix Spike Duplicate 0909829-01 0 20.530 25-000 ug/L 2.0 82.1 20 70-130 -- <br /> .._---.._-....__--------------_-_-_...- <br /> 1,1-Diichloroethene BSG1716 Matrix Spike 0909829-01 0 25.870 25.000 ug/L 103 70-130 <br /> Matrix Spike Duplicate 0909829-01 0 25.930 25.000 ug/L 1.0 104 20 70-130130 <br /> -- -- - <br /> Toluene BSG1716 Matrix Spike 0909829-01 0 24.080 25.000 ug/L 96.3 70- <br /> Matrix Spike Duplicate09O982"1 0 24.400 25.000 ug/L 1.3 97.6 20 70-130 - <br /> Trichloroethene BSG1716 Matrix Spike 0909829-01 0 24.480 25.000 ug/L 97.9 70-130 <br /> 24.330 25.000 ug/L 0.6 -97.3_- 20 70-130 <br /> Matrix Spike Duplicate 0909829-01 0 <br /> 102 76-114 <br /> 1,2-Dichloroethane-i4(Surrogate) BSG1716 Matrix Spike 0909829-01 NO 10.230 10.000 uglL <br /> Matrix Spike Duplicate 09f}9829 01 NO 10.340 10.000 ug/L 103 ._ 76-114 <br /> Toluene-tib(Surrogate) BSG1716 Matrix Spike 0909829-01 ND 9.8800 10.000 ug/L 98.8 88-110 <br /> Matrix Spike Duplicate 0909829-01 ND 9.9500 10.000 ug/L 99.5 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSG1716 Matrix Spike 0909829-01 ND 10.090 10.000 ug/L 101 -1 <br /> 15 <br /> Matra Spike Duplicate 0909829-01 ND 10.190 10.000 ug/L 102 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 party. BC Laboratories.Inc.assumes no responsibility for report aha-atiou,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: Caldomia-ELAP Certification Number 1166, Nevada Administrative Code-NAC-445A <br />