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Laboratories. Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis, Inc. Reported: 10/05/2015 15:05 <br /> ' 1172 Kansas Avenue Project: City of Escalon,Monitoring Wells <br /> Modesto,CA 95351 Project Number: 5894 <br /> Project Manager: Project Manager <br /> ' Volatile Organic Analysis (EPA Method 826013, 8010 List) <br /> Quality Control Report - Method Blank Analysis <br /> ' Constituent QC Sample ID MB Result Units PCL MDL Lab Quals <br /> QC Batch ID: BYI2371 <br /> Bromodichloromelhane BYI2371-BLKI NO ug/L 0.50 0.14 <br /> Bromofonn BYI2371-BLKI NO ug/L 0.50 0.27 <br /> Brorrromethane BYI2371-BLK1 NO ug/L 1.0 0.25 <br /> ' Carbon tetrachloride BYI2371-BLK1 NO ug/L 0.50 0.18 <br /> Chlorobenzene BYI2371-BLKI NO ug/L 0.50 0.093 <br /> Chloroethane BY12371-BLK1 NO ug/L 0.50 0.14 <br /> ' Chloroform BY12371-BLK1 NO ug/L 0.50 0.12 <br /> Chloromethane BYI2371-BLK1 NO ug/L 0.50 0.14 <br /> Dibromochloromethane BY12371-BLK1 NO ug/L 0.50 0.13 <br /> 1,2-Dichlorobenzene _ _ _ BY12371-BLK1 NO ug/L 0.50 0.072 <br /> 1,3-Dichlorobenzene BYI2371-BLK1 NO ug/L 0.50 0.15 <br /> 1,4-Dichlorobenzene BYI2371-BLKI NO ug/L 0.50 0.062 <br /> ' Dichlorodifluoromethane BY12371-BLKI NO ug/L 0.50 0.099 <br /> 1,1-Dichloroethane BY12371-BLKI NO ug/L 0.50 0.11 <br /> 1,2-Dichloroethane BY12371-BLK1 NO ug/L 0.50 0.17 <br /> ' 1,1-Dichloroethene BY12371-BLK1 NO ug/L 0.50 0.18 _ <br /> cis-1,2-Dichloroethene BYI2371-BLKI NO ug/L 0.50 0.085 <br /> ' trans-1,2-Dichloroethene BYI2371-BLKI NO ug/L 0.50 0.15 <br /> 1,2-Dichloropropane BYI2371-BLK7 NO ug/L 0.50 0.13 <br /> cis-1,3-Dichloropropene BY12371-BLKI NO ug/L 0.50 0.14 <br /> trans-1,3-Dichloropropene BYI2371-BLK1 NO ug/L 0.50 0.079 <br /> Methylene chloride BYI2371-BLK1 NO ug/L 1.0 0.48 <br /> 1,122-Tetrachloroethane BYI2371-BLK1 NO ug/L 0.50 0.17 <br /> ' Tetrachloroethane BY12371-BLK1 NO ug/L 0.50 0.13 <br /> 1,11-Trichloroethane BY12371-BLK1 NO ug/L 0.50 0.11 <br /> 1,1,2-Trichloroethane BY12371-BLK7 NO ug/L 0.50 0.16 <br /> ' Trichloroethene BY12371-BLK1 NO ug/L 0.50 0.085 <br /> Trichlorofluoromethane BY12371-BLK1 NO ug/L 0.50 0.13 <br /> 1,1,2-Trichloro-1,2,2-Influoroethane BYI2371-BLK1 NO ug/L 0.50 0.15 <br /> ' Vinyl chloride BY12371-BLKI NO ug/L 0.50 0.12 <br /> 1,2-Dichlo methane-db(Surrogate) BYI2371-BLK1 106 % 75-125 (LCL-UCL) <br /> ' Toluened8(Surrogate) BYI2371-BLK7 95.8 % 80-120 (LCL-UCL) <br /> 4-Bromofluorobenzene(Surrogate) BY12371-BLKI 102 % 80-120 (LCL-UCL) <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 mono am fm the exclusive use ofthe submitting party. BC Labmatmes.Inc.assumes no responsibility for re artalterarion,sepamdpn,daachment m third any intetpmode u. <br /> Report ID: 1000403978 4100 Atlas Court Bakersfield,CA 93308 (661)3274911 FAX(661)327-1918 w v bclabs.com Page 19 of 29 <br />