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Laboratories Inc. <br />Environmental Testing Laboratory Since 1949 <br />r <br />CB&I Reported: 11/04/2013 8:06 <br />180 Promenade Circle, Suite 320 Project: Corral Hollow LF, SJ County <br />Sacramento, CA 95834 Project Number. 149271 <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: BWJ1506 <br />Used client sample: <br />N <br />Benzene <br />MS <br />1320257-77 <br />ND <br />24.850 <br />25.000 <br />ug/L <br />99.4 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />25.520 <br />25.000 <br />ug/L <br />2.7 <br />102 <br />20 <br />70-130 <br />Bromodichloromethane <br />MS <br />1320257-77 <br />ND <br />23.030 <br />25.000 <br />ug/L <br />92.1 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />24.180 <br />25.000 <br />ug/L <br />4.9 <br />96.7 <br />20 <br />70-130 <br />Chlorobenzene <br />MS <br />1320257-77 <br />ND <br />24.800 <br />25.000 <br />ug/L <br />99.2 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />25.610 <br />25.000 <br />ug/L <br />3.2 <br />102 <br />20 <br />70-130 <br />Chloroethane <br />MS <br />1320257-77 <br />ND <br />25.460 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />27.090 <br />25.000 <br />ug/L <br />6.2 <br />108 <br />20 <br />70-130 <br />1,4 -Dichlorobenzene <br />MS <br />1320257-77 <br />ND <br />23.520 <br />25.000 <br />ug/L <br />94.1 <br />70-13" <br />0-130 <br />MSD <br />1320257-77 <br />ND <br />24.770 <br />25.000 <br />ug/L <br />5.2 <br />99.1 <br />20 <br />70-130 <br />1,1-Dichloroethane <br />MS <br />1320257-77 <br />ND <br />25.110 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />25.970 <br />25.000 <br />ug/L <br />3.4 <br />104 <br />20 <br />70-130 <br />1, 1 -Dichloroethene <br />MS <br />1320257-77 <br />ND <br />23.290 <br />25.000 <br />ug/L <br />93.2 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />24.460 <br />25.000 <br />ug/L <br />4.9 <br />97.8 <br />20 <br />70-130 <br />Toluene <br />MS <br />1320257-77 <br />ND <br />24.130 <br />25.000 <br />ug/L <br />96.5 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />25.260 <br />25.000 <br />ug/L <br />4.6 <br />101 <br />20 <br />70-130 <br />Trichloroethene <br />MS <br />1320257-77 <br />ND <br />25.240 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />MSD <br />1320257-77 <br />ND <br />26.760 <br />25.000 <br />ug/L <br />5.8 <br />107 <br />20 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />MS <br />1320257-77 <br />ND <br />10.770 <br />10.000 <br />ug/L <br />108 <br />75-125 <br />MSD <br />1320257-77 <br />ND <br />10.180 <br />10.000 <br />ug/L <br />5.6 <br />102 <br />75-125 <br />Toluene -d8 (Surrogate) <br />MS <br />1320257-77 <br />ND <br />10.370 <br />10.000 <br />ug/L <br />104 <br />80-120 <br />MSD <br />1320257-77 <br />ND <br />10.200 <br />10.000 <br />ug/L <br />1.7 <br />102 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) <br />MS <br />1320257-77 <br />ND <br />10.150 <br />10.000 <br />ug/L <br />102 <br />80-120 <br />MSD <br />1320257-77 <br />ND <br />9.5900 <br />10.000 <br />ug/L <br />5.7 <br />95.9 <br />80-120 <br />The results in this rePori apply to <br />the samples analy2ed 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 <br />use of the submitting parry. BC Laboratories, Inc. assuroes no responsibility <br />for report alteration, separation, detachment or third party interpretation - <br />4100 Atlas Court Bakersfield, CA 93308 <br />(661) 327-4911 FAX (661) 327-1918 <br />www.bciabs.com <br />Page 54 of 58 <br />