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= = = = = = ® = = ® ® ® = M <br />Laboratories, Inc. IN <br />Environmental Testing Laboratory Since 1949 <br />Herst Associates Project: NCYC Reported: 03/30/2010 13:26 <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 Sample ID QC Ty e Result Level PQL Units Recovery RPD Recoveg RPD Lab Quals <br />4-Bromotluorobenzene (Surrogate) STC0953 BTC0953-BSI LCS 9.4200 10.000 ug/L 94.2 86-115 <br />Benzene BTC1605 BTC1605-BSI LCS 25.700 25.000 0.50 ug/L 103 70-130 <br />_.. ---...._. ....- --- --— — — — -- <br />Bromodichloromethane BTC1605 BTC1605-BS1 LCS 23.240 25.000 0.50 ug/L 93.0 70-130 <br />Chlorobenzene <br />BTC1605 BTC1605-BS1 <br />LCS <br />22.330 <br />25.000 <br />0.50 <br />ug/L <br />89.3 <br />70-130 <br />Chloroethane <br />BTC1605 BTC1605-BSI <br />LCS <br />25.550 <br />25.000 <br />0.50 <br />ug/L <br />102 <br />70-130 <br />_._............. <br />1,4 -Dichlorobenzene <br />.. ..-- -. <br />BTC1605 BTC1605-BSI <br />_ <br />LCS <br />.___.._.. ..—.__.._- <br />22.720 <br />25.000 <br />0.50 <br />uglL <br />90.9 <br />70-130 <br />1, 1 -Dichloroethane <br />BTC1605 BTC1605-BSI <br />LCS <br />24.650 <br />25.000 <br />0.50 <br />ug/L <br />98.6 <br />70-130 <br />1,1-Dichloroethene <br />BTC1605 BTC1605-BSI <br />LCS <br />25.340 <br />25.000 <br />0.50 <br />ug/L <br />101 <br />70 - 130 <br />Toluene <br />BTC1605 BTC1605-BSI <br />LCS <br />24.090 <br />25.000 <br />0.50 ug/L <br />96.4 <br />70-130 <br />Trichloroethene <br />BTC1605 BTC1605-BS1 <br />LCS <br />24.290 <br />25.000 <br />0.50 ug/L <br />97.2 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BTC1605 BTC1605-BSI <br />LCS <br />9.3800 <br />10.000 <br />ug/L <br />_-_- ------------ <br />. __Toluene <br />93.8 <br />76-114 <br />-d8 (Surrogate) <br />Toluene-d8 <br />BTC1605 BTC1605-BS1 <br />LCS <br />10.380 <br />---- <br />10.000 <br />. _..-- <br />_ _.... __....._ ug/L <br />104 <br />88-110 <br />4-Bromofluorobenzene (Surrogate) <br />BTC1605 BTC1605-BSI <br />LCS <br />10.390 <br />10.000 <br />ug/L <br />104 <br />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 arc far the exclusive use of die submitting party. BC Laboratories, Inc_ assumes no responsibility for report alteration, separation, detaclunent or third party interpretation <br />4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 35 of 44 <br />Certifications: California - ELAP Certification Number 1186; Nevada Administrative Code - NAC -445A <br />