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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 - 09/28/2022 <br />Date Prepared:09/26/2022 <br />WorkOrder:2209F96 <br />BatchID:254725 <br />Analytical Method:SW8260B <br />Unit:mg/kg <br />Sample ID:MB/LCS/LCSD-254725 <br />Instrument:GC28 <br />Matrix:Soil <br />Extraction Method:SW5030B <br />QC Summary Report for SW8260B <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 />Surrogate Recovery <br />Dibromofluoromethane 0.12 0.12 0.12 98 98 70-140 0.222 30 <br />Toluene-d8 0.14 0.14 0.12 113 115 70-140 2.29 30 <br />4-BFB 0.015 0.015 0.012 118 119 70-140 1.29 30 <br />Benzene-d6 0.11 0.11 0.10 114 111 70-140 2.43 30 <br />Ethylbenzene-d10 0.11 0.11 0.10 114 112 70-140 1.51 30 <br />1,2-DCB-d4 0.083 0.079 0.10 83 79 70-140 4.01 30 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 34 of 49