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=0 McCampbell Analytical, Inc. <br />Wf4i "When Quality Counts" <br />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 <br /> <br />Quality Control Report <br />Client: Atlas Technical Consultants <br />Date Prepared: 02/18/2021 <br />Date Analyzed: 02/18/2021 <br />Instrument: GC48 <br />Matrix: Soil <br />Project: 91-57962-PW; FUHSD <br />WorkOrder: 2102A42 <br />BatchID: 215584 <br />Extraction Method: 5W3550B <br />Analytical Method: SW8270C <br />Unit: mg/Kg <br />Sample ID: MB/LCS/LCSD-215584 <br />QC Summary Report for SW8270C <br />Analyte MB MDL RL <br />Result <br />SPK <br />Val <br />MB SS <br />%REC <br />MB SS <br />Limits <br />96 <br />Surrogate Recovery <br />2-Fluorophenol 1.20 1.25 70-130 <br />Phenol-d5 1.12 1.25 89 70-130 <br />Nitrobenzene-d5 0.976 1.25 78 60-130 <br />2-Fluorobiphenyl 1.08 1.25 86 60-130 <br />2,4,6-Tribromophenol 0.742 1.25 59 30-130 <br />4-Terphenyl-d14 1.15 1.25 92 40-130 <br />(Cont.) <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 53 of 68