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w <br /> 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> _ M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbelLcom/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Terracon WorkOrder: 1807C26 <br /> Date Prepared: 7/28/18-7/30/18 BatchID: 162418 <br /> Date Analyzed: 7/28/18-7/30/18 Extraction Method: E524.3 <br /> Instrument: GC38 Analytical Method: E524.3 <br /> Matrix: Drinking Water Unit: µg/L <br /> Project: NA187034;Global Carrier Inc. Sample ID: MB/LCS/LCSD-162418 <br /> QC Summary Report for E524.3 <br /> Analyte MB RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> 1,2-Dibromo-3-chloropropane ND 0.010 - <br /> 1,2-Dibromoethane(EDB) ND 0.020 - - <br /> 1,2,3-Trichloropropane ND 0.0050 - - <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-d3 1.00 1 100 70-130 <br /> 4-BFB 0.955 1 96 70-130 <br /> 1,2-dichlorobenzene-d4 1.06 1 106 70-130 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> 1,2-Dibromo-3-chloropropane 0.00913 0.0105 0.010 91 105 50-150 13.5 20 <br /> 1,2-Dibromoethane(EDB) 0.0119 0.0106 0.010 119 106 50-150 11.2 20 <br /> 1,2,3-Trichloropropane 0.00540 0.00488 0.0050 108 97 50-150 10.2 20 <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-d3 1.06 0.976 1 106 98 50-150 8.09 20 <br /> 4-BFB 0.968 0.961 1 97 96 50-150 0.798 20 <br /> 1,2-dichlorobenzene-d4 1.07 1.04 1 107 104 50-150 3.02 20 <br /> CA ELAP 1644 <br /> Page 6 of 10 <br />