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McCampbell Analytical, Inc. <br />"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: Fremouw Environmental Services, Inc. <br />Date Prepared: 06/10/2021 <br />Date Analyzed: 06/10/2021 <br />Instrument: GC3 <br />Matrix: Soil <br />Project: Tracy <br />WorkOrder: 2106674 <br />BatchID: 223190 <br />Extraction Method: SW5035 <br />Analytical Method: SW8021B/8015Bm <br />Unit: mg/Kg <br />Sample ID: MB/LCS/LCSD-223190 <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 0.610 1.00 <br />MTBE ND 0.00340 0.0500 <br />Benzene ND 0.00190 0.00500 <br />Toluene ND 0.00240 0.00500 <br />Ethylbenzene ND 0.00170 0.00500 <br />m,p-Xylene ND 0.00260 0.0100 <br />o-Xylene ND 0.000910 0.00500 <br />Surrogate Recovery <br />2-Fluorotoluene 0.103 0.1 103 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) 0.538 0.531 0.60 90 89 82-118 1.37 20 <br />20 MTBE 0.0877 0.0832 0.10 88 83 61-119 5.24 <br />Benzene 0.102 0.0960 0.10 102 96 77-128 6.00 20 <br />Toluene 0.102 0.0968 0.10 102 97 74-132 5.65 20 <br />Ethylbenzene 0.103 0.0975 0.10 103 97 84-127 5.50 20 <br />m,p-Xylene 0.206 0.197 0.20 103 99 80-120 4.62 20 <br />o-Xylene 0.0993 0.0958 0.10 99 96 80-120 3.61 20 <br />Surrogate Recovery <br />2-Fluorotoluene 0.0986 0.0926 0.10 99 93 75-134 6.33 20 <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 9 of 14