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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:7459; Sutter Street <br />Date Analyzed:09/27/2022 <br />Date Prepared:09/26/2022 <br />WorkOrder:2209F96 <br />BatchID:254705 <br />Analytical Method:SW8021B/8015Bm <br />Unit:mg/Kg <br />Sample ID:MB/LCS/LCSD-254705 <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 0.086 0.1 86 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)0.52 0.52 0.60 86 86 82-118 0.104 20 <br />MTBE 0.076 0.077 0.10 76 77 61-119 0.742 20 <br />Benzene 0.10 0.095 0.10 101 95 77-128 6.22 20 <br />Toluene 0.11 0.10 0.10 105 100 74-132 5.43 20 <br />Ethylbenzene 0.10 0.096 0.10 101 96 84-127 5.45 20 <br />m,p-Xylene 0.21 0.20 0.20 105 100 80-120 4.90 20 <br />o-Xylene 0.10 0.094 0.10 100 94 80-120 5.68 20 <br />Surrogate Recovery <br />2-Fluorotoluene 0.090 0.087 0.10 90 87 75-134 4.24 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 41 of 49