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;laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> i-lerst 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 Organic Analysis (EPA Method8260) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent Batch ID QC Sample ID QC Typ2 Result Level PQL Units Recovery RPR Recoveg RPD Lab Quaffs <br /> Benzene BSF0324 BSF0324-BSI LGS 24.300 25.000 0.50 ug/L 97.2 70-130 <br /> Bromodichloromethane SSF0324 BSF0324-BSI LCS 26.540 25.000 0.50 ug/L 106 70-130 <br /> Chlorobenzene BSF0324 BSF0324-BS1 LCS 24.060 25.000 0.50 ug/L 96.2 70-130 <br /> -- _._._.__ _-----—_ ----- ----... -- — -- <br /> Chloroethane BSF0324 BSF0324-BSI LCS 25.210 25.000 0.50 ug/L 101 70-130 <br /> 1,4-Dichlorobenzene BSF0324 BSF0324-BS1 LCS 25.220 25.000 0.50 ug/L 101 70-13 <br /> ........... ------- <br /> 1,1-Dichlorcethane BSF0324 BSF0324-BS1 LCS 24.080 25.000 0.50 uglL 96.3 70-130 <br /> 1,1-Dichloroethene BSF0324 BSF0324-BS1 LCS 25.770 25.00 0.50 ug/L 103 70-130 <br /> ..........--- - ....---- — - <br /> Toluene BSF0324 BSF0324-BS1 LCS 25.440 25.000 0.50 ug/L 102 70-130 <br /> Trichloroethene BSF0324 BSF0324-BS1 LCS 26.150 25.000 0.50 ug/L 105 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) SSF0324 BSF0324-BSI LCS 10.890 10.000 ug/L 109 76 I14 <br /> — --_...- ----- - ........._...-_-._..._ <br /> Toluene-d8(Surrogate) BSF0324 BSF0324-BSI LCS 10.450 10.000 ug/L 104 88-110 <br /> ------ — --...-------- _— -- ---- - <br /> 4-Bromofluorobenzene(Surrogate) BSF0324 BSF0324-BSI LCS 9.9000 10.000 ug/L 99.0 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 parry. 8C Laboratories,Inc.assumes no resrmsibitity for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www-bclabs.com Page 32 of 36 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />