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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:S.J. Cogen <br />Date Analyzed:07/01/2020 <br />Date Prepared:07/01/2020 <br />WorkOrder:2006D64 <br />BatchID:200990 <br />Analytical Method:SW8021B/8015Bm <br />Unit:µg/L <br />Sample ID:MB/LCS/LCSD-200990 <br />2006D64-009AMS/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)58.7 61.0 60 98 102 78-116 3.74 20 <br />MTBE 9.45 9.60 10 94 96 72-122 1.64 20 <br />Benzene 9.66 9.70 10 97 97 81-123 0.382 20 <br />Toluene 10.1 10.2 10 101 102 83-129 1.02 20 <br />Ethylbenzene 10.1 10.4 10 101 104 88-126 2.83 20 <br />m,p-Xylene 20.4 21.0 20 102 105 80-120 2.90 20 <br />o-Xylene 9.94 10.2 10 99 102 80-120 3.05 20 <br />Surrogate Recovery <br />aaa-TFT 8.78 8.73 10 88 87 74-117 0.635 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)61.8 60.8 60 ND 103 101 63-133 1.68 201 <br />MTBE 9.32 9.61 10 ND 93 96 69-122 3.11 201 <br />Benzene 9.68 9.64 10 ND 97 96 84-125 0.387 201 <br />Toluene 10.1 10.2 10 ND 101 102 87-131 0.545 201 <br />Ethylbenzene 10.5 10.3 10 ND 105 103 92-126 1.32 201 <br />m,p-Xylene 21.0 20.7 20 ND 105 103 80-120 1.66 201 <br />o-Xylene 9.96 10.1 10 ND 100 101 80-120 1.23 201 <br />Surrogate Recovery <br />aaa-TFT 8.69 8.70 101 87 87 76-115 0.139 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 18 of 26