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WMIM., Laboratories, Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 02/10/2010 15:29 <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 Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent Batch ID QC Sam Ie ID QCT Result Level POL Units Recoveg, RPD Recovery RPD Lab Quals <br /> Benzene BTB0470 6T130470-BSI LCS 27.199 25.000 0.50 ug/L 109 70-130 <br /> .......... ----------- ------ ------- <br /> Bromodichloromethane BTB0470 BTB0470-BS1 LCS 26.468 25.000 0.50 ug/L 106 70-130 <br /> -1-1-1-1-................ <br /> Chlorobenzene BTBO470 BTB0470-BS1 LCS 25.447 25.000 OM ug/L 102 70-130 <br /> Chloroethane BTBO470 BTB0470-BS1 LCS 26,088 25.000 0.50 ug/L 104 70-130 <br /> 1,4 Dichlorobenzene BTBO470 BTS0470-BSI LCS 25-501 25.000 0.50 ug/L 102 7 1 0---1..30 <br /> 1,1-Dichloroethane BTBO470 BTBO470-BSI LCS 26,562 25.000 0.50 ug/L 106 70-130 <br /> 1,1-Dichicyroethene STBO470 STBO470-BSI LCS 26.081 25-000 0.50 ug/L 104 70 130 <br /> -------------- <br /> Toluene BTBO470 BTB0470-BS1 LCS 26.870 25.000.. 0.50 ug/L 107 70-130 ---------- <br /> ...... ..........-------------------------- <br /> Trichloroethene BTBO470 BTB0470-BS1 LCS 26.556 25,000 0.50 ug/L 106 70-130 <br /> ------------ <br /> 1,2-Dichloroethane-d4(Surrogate) BTBO470 BTB0470-BS1 LCS 9.8442 10.000 ug/L 984 76-114 <br /> ----------- --------------- <br /> Toluene-d8(Surrogate) BTBO470 BTB0470-BS1 LCS 10.131 10.000 ug/L 101 88-110 <br /> .............. <br /> 4-Bromofluorobenzene(Surrogate) BTBO470 BTBO470-BSI LCS 9M89 10.000 ug/L 96.7 --86-115 <br /> .............. <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 entirely. <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 PaTtv interpretation. <br /> 4100Atlas Court Bakersfield,CA 93308 (661)3274911 FAX(661)327-1918 www.bclabs.com Page 32 of 36 <br /> Certifications: California-ELAP Certification Number 1186: Nevada Administrative Code-NAG445A <br />