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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 /> J4' "When Quality Counts" http://www.inccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Neil O.Anderson&Associates WorkOrder: 1505921 <br /> Date Prepared: 5/28/15 BatchID: 105567 <br /> Date Analyzed: 5/28/15-5/29/15 Extraction Method: E524.3 <br /> Instrument: GC38 Analytical Method: E524.3 <br /> Matrix: Drinking Water Unit: µg/1.. <br /> Project: NA 157000 G;Wecker Construction Sample ID: MB/LCS-105567 <br /> 1505865-002BMS/MSD <br /> •• QC Summary Report for E524.3 <br /> Analyte MB LCS RL SPK MB SS LCS LCS <br /> L Result Result Val %REC %REC Limits <br /> 1,2-Dibromo-3-chloropropane ND 0.0981 0.010 0.10 98 70-130 <br /> 1,2-Dibromoethane(EDB) ND 0.0995 0.020 0.10 99 70-130 <br /> L 1,2,3-Tdchloropropane ND 0.117 0.0050 0.10 117 70-130 <br /> Surrogate Recovery <br /> 1,2-dichlorobenzene-d4 1.11 1.06 1 111 106 70-130 <br /> 4-BFB 0.973 1.06 1 97 106 70-130 <br /> tert-Butyl methyl ether-d3 1 10 1.06 1 110 106 70-130 <br /> 1 <br /> Analyte MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> Result Result Val Val %REC %REC Limits Limit <br /> i <br /> 1,2-Dibromo-3-chloropropane 0.186 0.186 0.20 ND 92 92 70-130 0 30 <br /> 1,2-Dibromoethane(EDB) 0.203 0.206 0.20 ND 102 103 70-130 1.17 30 <br /> i <br /> 1,2,3-Trichloropropane 0.230 0.230 0.20 ND 115 115 70-130 0 30 <br /> LSurrogate Recovery <br /> 1,2-dichlorobenzene-d4 1.08 1.10 1 108 110 70-130 1.47 30 <br /> 4-BFB 1.08 1.10 1 108 110 70-130 1.47 30 <br /> tert-Butyl methyl ether-d3 1.08 1.10 1 108 110 70-130 1.47 30 <br /> L <br /> I <br /> L <br /> I <br /> L <br /> i <br /> L <br /> E <br /> r <br /> CDPH ELAP 1644♦NELAP 4033ORELAP QA/QC Officer <br /> Page 6 of 10 <br />