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1i 1534 Willow Pass Road,Pittsbw&CA 94565-1701 <br /> M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(8171252-9262/Fax:(925)252-9269 <br /> "N%en QualityCounitsrr http•1/www.mcrampbelLcom/E-mail:main(ammampbeltcom <br /> Quality Control Report <br /> Client: Petralogix WorkOrder: 1906A31 <br /> Date Prepared: 7/1/19 BatchID: 180706 <br /> Date Analyzed: 7/1/19 Extraction Method: E524.3 <br /> Instrument: GC45 Analytical Method: E524.3 <br /> Matrix: Drinking Water Unit: µg/L <br /> Project: Livermore Labs Sample ID: MB/LCS/LCSD-180706 <br /> 1906A31-001 AMS/MSD <br /> QC Summary Report for E524.3 <br /> Analyte MB MDL RL SPK MB SS UB SS <br /> Result Val %REC Limits <br /> 1,2-Dibromo-3-chloropropane ND 0.0077 0.010 - - - <br /> Surrogate Recovery <br /> tort-Butyl methyl ether-d3 1.2 1 118 70-130 <br /> 4-BFB 1.0 1 101 70-130 <br /> 1,2-dichlorobenzene-d4 1.1 1 108 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 0.11 0.11 0.10 105 110 70-130 4.36 20 <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-d3 1.1 0.90 1 107 90 70-130 16.9 20 <br /> 4-BFB 0.97 0.98 1 97 98 70-130 0.958 20 <br /> 1,2-dichlorobenzene-d4 1.0 1.1 1 104 109 70-130 3.84 20 <br /> Analyte MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> 1,2-Dibromo-3-chi crop ropane 1 0.12 0.11 0.10 ND 125 113 70-130 10.1 30 <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-d3 1 0.93 1.2 1 93 120 70-130 25.4 30 <br /> 4-BFB 1 1.0 1.0 1 104 103 70-130 0.830 30 <br /> 1,2-dichlorobenzene-d4 1 1.1 1.0 1 109 103 70-130 5.03 30 <br /> CA ELAP 1644 <br /> Page 5 of 9 <br />