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Quality Control Report <br />McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" <br />Client:Condor Earth Technologies, Inc. <br />Project:7454; Suter St <br />Date Analyzed:09/23/2022 <br />Date Prepared:09/23/2022 <br />WorkOrder:2209F28 <br />BatchID:254599 <br />Analytical Method:SW8021B/8015Bm <br />Unit:mg/Kg <br />Sample ID:MB/LCS/LCSD-254599 <br />Instrument:GC7 <br />Matrix:Soil <br />Extraction Method:SW5035 <br />QC Summary Report for SW8021B/8015Bm <br />Analyte MB <br />Result <br />MDL RL SPK <br />Val <br />MB SS <br />%REC <br />MB SS <br />Limits <br />TPH(g) (C6-C12)ND 0.55 1.0 --- <br />MTBE ND 0.0026 0.050 --- <br />Benzene ND 0.0018 0.0050 --- <br />Toluene ND 0.0022 0.0050 --- <br />Ethylbenzene ND 0.0015 0.0050 --- <br />m,p-Xylene ND 0.0026 0.010 --- <br />o-Xylene ND 0.00098 0.0050 --- <br />Surrogate Recovery <br />2-Fluorotoluene 0.085 0.1 85 75-134 <br />Analyte LCS <br />Result <br />LCSD <br />Result <br />SPK <br />Val <br />LCS <br />%REC <br />LCSD <br />%REC <br />LCS/LCSD <br />Limits <br />RPD RPD <br />Limit <br />TPH(btex)0.51 0.53 0.60 84 89 82-118 5.41 20 <br />MTBE 0.077 0.074 0.10 77 74 61-119 3.54 20 <br />Benzene 0.093 0.093 0.10 93 93 77-128 0.328 20 <br />Toluene 0.098 0.097 0.10 98 97 74-132 0.692 20 <br />Ethylbenzene 0.095 0.094 0.10 95 94 84-127 0.437 20 <br />m,p-Xylene 0.20 0.20 0.20 98 98 80-120 0.523 20 <br />o-Xylene 0.093 0.093 0.10 93 93 80-120 0.0918 20 <br />Surrogate Recovery <br />2-Fluorotoluene 0.086 0.085 0.10 86 85 75-134 1.87 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 40 of 47