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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:06/25/2020 - 06/26/2020 <br />Date Prepared:06/25/2020 - 06/26/2020 <br />WorkOrder:2006B65 <br />BatchID:200671 <br />Analytical Method:SW8021B/8015Bm <br />Unit:µg/L <br />Sample ID:MB/LCS/LCSD-200671 <br />Instrument:GC3 <br />Matrix:Water <br />Extraction Method:SW5030B <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 20.0 50.0 --- <br />MTBE ND 0.530 1.00 --- <br />Benzene ND 0.200 0.500 --- <br />Toluene ND 0.190 0.500 --- <br />Ethylbenzene ND 0.230 0.500 --- <br />m,p-Xylene ND 0.400 1.00 --- <br />o-Xylene ND 0.130 0.500 --- <br />Surrogate Recovery <br />aaa-TFT 8.81 10 88 74-117 <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 3.83 20 <br />MTBE 9.61 9.83 10 96 98 72-122 2.29 20 <br />Benzene 10.5 10.2 10 105 102 81-123 2.87 20 <br />Toluene 10.9 10.6 10 109 106 83-129 2.57 20 <br />Ethylbenzene 10.9 10.7 10 109 107 88-126 1.98 20 <br />m,p-Xylene 21.9 21.4 20 109 107 80-120 2.12 20 <br />o-Xylene 10.5 10.4 10 105 104 80-120 1.28 20 <br />Surrogate Recovery <br />aaa-TFT 9.21 8.80 10 92 88 74-117 4.63 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 58 of 87