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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 /> "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: GHD Services,Inc. WorkOrder: 1910845 <br /> Date Prepared: 10/17/19 BatchID: 187276 <br /> Date Analyzed: 10/17/19 Extraction Method: SW5035 <br /> Instrument: GC19 Analytical Method: SW802113/801513m <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 11202858-07.11;Chevron 372736 UDC Removal Sample ID: MB/LCS/LCSD-187276 <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) 0.43,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 0.094 0.1 94 75-134 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(btex) 0.65 0.66 0.60 108 111 82-118 2.62 20 <br /> MTBE 0.096 0.091 0.10 96 91 61-119 5.73 20 <br /> Benzene 0.085 0.098 0.10 85 98 77-128 13.9 20 <br /> Toluene 0.098 0.11 0.10 98 108 74-132 9.49 20 <br /> Ethylbenzene 0.099 0.11 0.10 99 111 84-127 11.0 20 <br /> m,p-Xylene 0.20 0.22 0.20 102 110 80-120 7.66 20 <br /> o-Xylene 0.10 0.11 0.10 101 109 80-120 7.61 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.091 0.10 0.10 91 103 75-134 12.9 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 11 of 17 <br />