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0 • <br />SunStar <br />Laboratories, Inc. <br />PROVIDING QUALITY ANALYTICAL SERVICES NATIONWIDE <br />25712 Commereentre Drive <br />Lake Forest, California 92630 <br />949.297.5020 Phone <br />949.297.5027 Fax <br />Brusca Associates Inc. Project: Lathrop 48 Acre Property <br />PO Box 332 Project Number: 137-002 Reported: <br />Roseville CA, 95661 Project Manager: Joe Brusca 05/16/17 12:00 <br />Volatile Organic Compounds by EPA Method 8260B - Quality Control <br />SunStar Laboratories, Inc. <br />Reporting Spike Source °/uREC RPD <br />uialyte Result MDL Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 7042825 - EPA 5030 GCMS <br />Blank (7042825-BLKI) <br />Prepared & Analyzed: 04/28/17 <br />1,2,4-Triclhlorobenzene <br />ND <br />5.0 ug/kg <br />1,1,2 -Trichloroethane <br />ND <br />5.0 " <br />1,1,1 -Trichloroethane <br />ND <br />5.0 " <br />Trichloroethene <br />ND <br />5.0 " <br />Trichlorofluoromethane <br />ND <br />5.0 " <br />1,2,3-Trichloropropane <br />ND <br />5.0 " <br />1,3,5-Trimethylbenzene <br />ND <br />5.0 " <br />1,2,4-Trimethylbenzene <br />ND <br />5.0 " <br />Vinyl chloride <br />ND <br />5.0 " <br />Benzene <br />ND <br />5.0 " <br />Toluene <br />ND <br />5.0 " <br />Ethylbenzene <br />ND <br />5.0 " <br />m,p-Xylene <br />ND <br />10 " <br />o -Xylene <br />ND <br />5.0 " <br />LCS (7042825 -BSI) <br />Prepared & Analyzed: 04/28/17 <br />Surrogate:4-Bromofluorobenzene <br />46.0 <br />ug/kg 40.0 115 <br />81.2-123 <br />Surrogate: Dibromojluoromethane <br />45.1 <br />40.0 113 <br />95.7-135 <br />Surrogate: Toluene -d8 <br />34.4 <br />40.0 86.1 <br />85.5-116 <br />Chlorobenzene <br />120 <br />5.0 <br />100 120 <br />75-125 <br />1,1-Dichloroethene <br />108 <br />5.0 <br />100 108 <br />75-125 <br />Trichloroethene <br />92.8 <br />5.0 <br />100 92.8 <br />75-125 <br />Benzene <br />88.6 <br />5.0 <br />100 88.6 <br />75-125 <br />Toluene <br />88.8 <br />5.0 <br />100 88.8 <br />75-125 <br />LCS Dup (7042825-BSD1) <br />Prepared & Analyzed: 04/28/17 <br />Surrogate:4-BromoJluorobenzene <br />45.9 <br />ug/kg 39.7 116 <br />81.2-123 <br />Surrogate: Dibromolluoromethane <br />46.3 <br />39.7 117 <br />95.7-135 <br />Surrogate: Toluene -d8 <br />33.5 <br />39.7 84.5 <br />85.5-116 S -GC <br />SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. <br />!�;'e <br />Page 90 of 94 <br />