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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:AdvancedGeo, Inc. <br />Project:SJ Cogen <br />Date Analyzed:06/30/2020 <br />Date Prepared:06/30/2020 <br />WorkOrder:2006D41 <br />BatchID:200984 <br />Analytical Method:SW8021B/8015Bm <br />Unit:µg/L <br />Sample ID:MB/LCS/LCSD-200984 <br />2006D41-039AMS/MSD <br />Instrument:GC3 <br />Matrix:Water <br />Extraction Method:SW5030B <br />QC Summary Report for SW8021B/8015Bm <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)58.0 57.8 60 97 96 78-116 0.441 20 <br />MTBE 9.76 9.31 10 98 93 72-122 4.78 20 <br />Benzene 10.4 9.84 10 104 98 81-123 5.64 20 <br />Toluene 10.7 10.0 10 107 100 83-129 6.34 20 <br />Ethylbenzene 10.3 9.99 10 103 100 88-126 3.45 20 <br />m,p-Xylene 20.8 20.1 20 104 101 80-120 3.38 20 <br />o-Xylene 10.0 9.73 10 101 97 80-120 3.23 20 <br />Surrogate Recovery <br />aaa-TFT 8.98 8.87 10 90 89 74-117 1.33 20 <br />Analyte MS <br />Result <br />MSD <br />Result <br />SPK <br />Val <br />SPKRef <br />Val <br />MS <br />%REC <br />MSD <br />%REC <br />MS/MSD <br /> Limits <br />RPD RPD <br />Limit <br />MS <br />DF <br />TPH(btex)57.1 59.4 60 ND 95 99 63-133 4.05 201 <br />MTBE 9.00 8.71 10 ND 90 87 69-122 3.20 201 <br />Benzene 9.86 9.44 10 ND 99 94 84-125 4.27 201 <br />Toluene 10.2 9.85 10 ND 102 98 87-131 3.91 201 <br />Ethylbenzene 10.3 10.0 10 ND 103 100 92-126 2.96 201 <br />m,p-Xylene 20.7 20.1 20 ND 104 101 80-120 2.97 201 <br />o-Xylene 9.94 9.82 10 ND 99 98 80-120 1.26 201 <br />Surrogate Recovery <br />aaa-TFT 9.36 8.86 101 94 89 76-115 5.56 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 56 of 85