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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 /> ,%at "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: 186946 <br /> Date Analyzed: 10/11/19- 10/12/19 Extraction Method: SW5035 <br /> Instrument: GC19 Analytical Method: SW8021B/8015Bm <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 11202858-07.11;Chevron 372736-UDC Removal Sample ID: MB/LCS/LCSD-186946 <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> TPH(g)(C6-C12) 0.092,J 0.090 1.0 <br /> MTBE ND 0.0023 0.050 <br /> Benzene ND 0.0010 0.0050 <br /> Toluene ND 0.0012 0.0050 - <br /> Ethylbenzene ND 0.0020 0.0050 - <br /> m,p-Xylene ND 0.0013 0.010 - <br /> o-Xylene ND 0.0013 0.0050 - - - <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.095 0.1 95 75-134 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(btex) 0.64 0.70 0.60 107 117 82-118 8.94 20 <br /> MTBE 0.085 0.089 0.10 85 89 61-119 4.59 20 <br /> Benzene 0.087 0.096 0.10 87 96 77-128 9.94 20 <br /> Toluene 0.094 0.10 0.10 94 103 74-132 9.81 20 <br /> Ethylbenzene 0.092 0.10 0.10 92 102 84-127 10.4 20 <br /> m,p-Xylene 0.18 0.20 0.20 92 102 80-120 9.63 20 <br /> o-Xylene 0.094 0.10 0.10 94 102 80-120 8.32 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.087 0.097 0.10 87 97 75-134 10.0 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 59 of 72 <br />