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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 /> IV, http://www.mccampbell.com/E-mail:main@mccampbell.cwm <br /> When Quality Counts <br /> Quality Control Report <br /> Client: Goldsmith Construction WorkOrder: 1909532 <br /> Date Prepared: 9/12/19 BatchID: 185178 <br /> Date Analyzed: 9/12/19-9/13/19 Extraction Method: SW5035 <br /> Instrument: GC19 Analytical Method: SW8021B/8015Bm <br /> Matrix: Soil Unit: mg/Kg <br /> Project: Bore Job for Yara Sample ID: MB/LCS/LCSD-185178 <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) 0.17,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 0.092 0.1 92 75-134 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(btex) 0.59 0.58 0.60 98 96 82-118 2.53 20 <br /> MTBE 0.098 0.082 0.10 98 82 61-119 18.5 20 <br /> Benzene 0.094 0.086 0.10 94 86 77-128 8.32 20 <br /> Toluene 0.10 0.093 0.10 102 93 74-132 9.38 20 <br /> Ethylbenzene 0.10 0.094 0.10 102 94 84-127 8.43 20 <br /> m,p-Xylene 0.21 0.19 0.20 105 97 80-120 7.94 20 <br /> o-Xylene 0.11 0.096 0.10 105 96 80-120 9.00 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.094 0.090 0.10 94 90 75-134 4.14 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 6 of 11 <br />