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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> T�'• Mccampbell Analytical, Inc. Toa Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> ' \ <br /> "When Quality Counts" hap://www.mccampbcll.com/E-mail:niafii@mcc=pbell.com <br /> Quality Control Report <br /> Client: Terracon WorkOrder: 1802C80 <br /> Date Prepared: 3/8/18 BatchID: 154444 <br /> Date Analyzed: 3/8/18 Extraction Method: E524.3 <br /> Instrument: GC38 Analytical Method: E524.3 <br /> Matrix: Drinking Water Unit: Rg/L <br /> Project: NA177059;Rowe; 12360 N.Angier Road,Lodi,CA Sample ID: MB/LCS-154444 <br /> 1803254-001BMS/MSD <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-Tdchloropropane ND 0.0050 - - - <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-O 1.11 1 111 70-130 <br /> 4-BFB 1.06 1 106 70-130 <br /> 1,2-dichlorobenzene-d4 1.03 1 103 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 0.0101 - 0.010 101 - 50-150 - <br /> 1,2-Dibromoethane(EDB) 0.0100 - 0.010 100 - 50-150 - - <br /> 1,2,3-Tdchloropropane 0.00544 - 0.0050 109 - 50-150 - - <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-d3 1.09 - 1 109 - 50-150 - - <br /> 4-BFB 1.08 - 1 108 - 50-150 - - <br /> 1,2-dichlorobenzene-d4 1.00 - 1 100 - 50-150 - - <br /> Analyte MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> Result Result Val Val %REC %REC Limits Limit <br /> 1,2-Dibromo-3-chloropropane 0.0109 0.00934 0.010 ND 109 93 50-150 15.4 30 <br /> 1,2-Dibromoethane(EDB) 0.0106 0.00968 0.010 ND 106 97 50-150 9.46 30 <br /> 1,2,3-Trichloropropane 0.00303 0.00449 0.0050 ND 61 90 50-150 39,1`1 30 <br /> Surrogate Recovery <br /> tert-Butyl methyl ether-d3 1.10 1.10 1 110 110 50-150 0 30 <br /> 4-BFB 1.11 1.11 1 111 111 50-150 0 30 <br /> 1,2-dichlorobenzene-d4 1.00 1.02 1 100 102 50-150 1.08 30 <br /> CA ELAP 1644 <br /> Page 8 of 12 <br />