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l 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytic al, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Countsrr http://www.mccanTbell.com/E-mail:main@mccmVbell.com <br /> Quality Control Report <br /> Client: GHD Services,Inc. WorkOrder: 1910581 <br /> Date Prepared: 10/11/19 BatchID: 186992 <br /> Date Analyzed: 10/15/19 Extraction Method: SW5030B <br /> Instrument: GC16 Analytical Method: SW8260B <br /> Matrix: Soil Unit: mg/kg <br /> Project: 11202858-07.11;Chevron 372736-UDC Removal Sample ID: MB/LCS/LCSD-186992 <br /> 1910581-003AMS/MSD <br /> QC Summary Report for SW8260B <br /> Analyte MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> Trichlorofluoromethane 1 0.013 0.013 0.020 ND 67 67 9-119 0 20 <br /> 1,2,3-Trichloropropane 1 0.0079 0.0081 0.010 ND 79 81 45-115 3.23 20 <br /> 1,2,4-Trimethylbenzene 1 0.020 0.020 0.020 ND 99 98 69-133 1.20 20 <br /> 1,3,5-Trimethylbenzene 1 0.020 0.020 0.020 ND 98 99 27-172 0.568 20 <br /> Vinyl Chloride 1 0.0073 0.0075 0.010 ND 73 75 33-114 1.97 20 <br /> m,p-Xylene 1 0.027 0.027 0.040 ND 67 68 62-117 2.05 20 <br /> o-Xylene 1 0.013 0.014 0.020 ND 67 68 19-144 1.23 20 <br /> Surrogate Recovery <br /> Dibromofluoromethane 1 0.10 0.10 0.12 84 82 66-116 2.35 20 <br /> Toluene-d8 1 0.13 0.13 0.12 107 106 86-110 0.931 20 <br /> 4-BFB 1 0.0098 0.010 0.012 79 82 71-114 3.76 20 <br /> Benzene-d6 1 0.079 0.079 0.10 79 79 62-122 0 20 <br /> Ethyl benzene-d10 1 0.10 0.096 0.10 102 96 69-130 5.08 20 <br /> 1,2-DCB-d4 1 0.065 0.065 0.10 65 65 55-108 0 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 58 of 72 <br />