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Laboratories, Inc. <br />Environmental Testing Laboratory Since 1949 <br />Shaw Reported: 06/08/2010 11:34 <br />1326 North Market Boulevard Project: Foothill Landfill <br />Sacramento, CA 95834 Project Number: 124591 <br />Project Manager: Sheila Richgels <br />Volatile Organic Analysis (EPA Method 8260) <br />Quality Control Report - Precision & Accuracy <br />Control Limits <br />Source Source Spike Percent Percent Lab <br />Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br />QC Batch ID: 13TE1504 I Used client sample: N <br />Benzene MS 1007271-01 NO 25.270 25.000 ug/L 101 70-130 <br />MSD 1007271-01 NO 23.930 25.000 ug/L 5.4 95.7 20 70-130 <br />Bromodichloromethane MS 1007271-01 NO 20.970 25.000 ug/L 83.9 70-130 <br />MSD 1007271-01 NO 20.180 25.000 ug/L 3.8 80.7 20 70-130 <br />Chlorobenzene MS 1007271-01 NO 23.740 25.000 ug/L 95.0 70-130 <br />MSD 1007271-01 NO 23.210 25.000 ug/L 2.3 92.8 20 70-130 <br />Chloroethane <br />MS <br />1007271-01 <br />NO <br />23.850 <br />25.000 <br />ug/L <br />95.4 <br />70-130 <br />MSD <br />1007271-01 <br />NO <br />23.810 <br />25.000 <br />ug/L <br />0.2 <br />95.2 <br />20 <br />70-130 <br />1,4 -Dichlorobenzene <br />MS <br />1007271-01 <br />NO <br />24.390 <br />25.000 <br />ug/L <br />97.6 <br />70-130 <br />MSD <br />1007271-01 <br />NO <br />24.270 <br />25.000 <br />ug/L <br />0.5 <br />97.1 <br />20 <br />70-130 <br />1,1-Dichloroethane <br />MS <br />1007271-01 <br />NO <br />22.430 <br />25.000 <br />ug/L <br />89.7 <br />70-130 <br />MSD <br />1007271-01 <br />NO <br />21.660 <br />25.000 <br />ug/L <br />3.5 <br />86.6 <br />20 <br />70-130 <br />1,1-Dichloroethene <br />MS <br />1007271-01 <br />NO <br />24.810 <br />25.000 <br />ug/L <br />99.2 <br />70-130 <br />MSD <br />1007271-01 <br />NO <br />24.080 <br />25.000 <br />ug/L <br />3.0 <br />96.3 <br />20 <br />70-130 <br />Toluene <br />MS <br />1007271-01 <br />NO <br />22.730 <br />25.000 <br />ug/L <br />90.9 <br />70-130 <br />MSD <br />1007271-01 <br />NO <br />22.240 <br />25.000 <br />ug/L <br />2.2 <br />89.0 <br />20 <br />70-130 <br />Trichloroethene <br />MS <br />1007271-01 <br />NO <br />21.880 <br />25.000 <br />ug/L <br />87.5 <br />70-130 <br />MSD <br />1007271-01 <br />NO <br />21.430 <br />25.000 <br />ug/L <br />2.1 <br />85.7 <br />20 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />MS <br />1007271-01 <br />NO <br />9.8900 <br />10.000 <br />ug/L <br />98.9 <br />76-114 <br />MSD <br />1007271-01 <br />NO <br />9.6100 <br />10.000 <br />ug/L <br />96.1 <br />76-114 <br />Toluene -d8 (Surrogate) MS 1007271-01 NO 9.6900 10.000 ug/L 96.9 88-110 <br />MSD 1007271-01 NO 9.7100 10.000 ug/L 97.1 88-110 <br />4-Bromofluorobenzene (Surrogate) MS 1007271-01 NO 9.1100 10.000 ug/L 91.1 86-115 <br />MSD 1007271-01 NO 9.2100 10.000 ug/L 92.1 86-115 <br />C] <br />0 <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. <br />4100 Atlas Court Bakersfield, CA 93308 (661) 3274911 FAX (661) 327-1918 www.bclabs.com Page 15 of 19 <br />