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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: 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: SW3550B <br />Analytical Method: SW8270C <br />Unit: mg/Kg <br />Sample ID: MB/LCS/LCSD-215584 <br />QC Summary Report for SW8270C <br />Analyte LCS <br />Result <br />LCSD <br />Result <br />SPK <br />Val <br />[CS <br />%REC <br />LCSD <br />%REC <br />LCS/LCSD <br />Limits <br />RPD RPD <br />Limit <br />Benzo (b) fluoranthene 0.0533 0.0494 0.062 85 79 60-130 7.65 30 <br />Benzo (g,h,i) perylene 0.0565 0.0531 0.062 90 85 70-130 6.36 30 <br />Benzo (k) fluoranthene 0.0552 0.0565 0.062 88 90 70-130 2.33 30 <br />Benzyl Alcohol 4.70 4.92 6.25 75 79 70-130 4.77 30 <br />Bis (2-chloroethoxy) Methane 1.14 1.09 1.25 92 87 70-130 5.19 30 <br />Bis (2-chloroethyl) Ether 0.0516 0.0513 0.062 83 82 60-130 0.505 30 <br />Bis (2-chloroisopropyl) Ether 0.0799 0.0758 0.062 128 121 60-130 5.33 30 <br />Bis (2-ethylhexyl) Adipate 1.24 1.22 1.25 99 98 60-130 1.23 30 <br />Bis (2-ethylhexyl) Phthalate 0.0586 0.0570 0.062 94 91 60-130 2.79 30 <br />Butylbenzyl Phthalate 0.0642 0.0618 0.062 103 99 60-130 3.84 30 <br />Chrysene 0.0558 0.0509 0.062 89 81 70-130 9.19 30 <br />Dibenzo (a,h) anthracene 0.0515 0.0503 0.062 82 81 70-130 2.42 30 <br />Dibenzofuran 1.15 1.14 1.25 92 91 60-130 0.883 30 <br />Diethyl Phthalate 0.0523 0.0522 0.062 84 83 70-130 0.307 30 <br />Dimethyl Phthalate 0.0507 0.0500 0.062 81 80 70-130 1.32 30 <br />Di-n-butyl Phthalate 0.0522 0.0496 0.062 84 79 60-130 5.17 30 <br />Di-n-octyl Phthalate 0.0709 0.0722 0.062 113 116 60-130 1.84 30 <br />Fluoranthene 0.0563 0.0538 0.062 90 86 70-130 4.51 30 <br />Fluorene 0.0638 0.0622 0.062 102 99 60-130 2.65 30 <br />Hexachlorobenzene 0.0551 0.0511 0.062 88 82 70-130 7.45 30 <br />Hexachlorobutadiene 0.0490 0.0453 0.062 78 72 70-130 8.05 30 <br />Hexachlorocyclopentadiene 377 3.85 6.25 60 62 60-130 2.09 30 <br />Hexachloroethane 0.0511 0.0500 0.062 82 80 70-130 2.20 30 <br />lndeno (1,2,3-cd) pyrene 0.0547 0.0525 0.062 87 84 70-130 4.07 30 <br />Isophorone 1.15 1.09 1.25 92 88 60-130 5.24 30 <br />Naphthalene 0.0523 0.0490 0.062 84 78 70-130 6.62 30 <br />Nitrobenzene 1.07 1.02 1.25 85 82 60-130 4.64 30 <br />N-Nitrosodimethylamine 5.51 5.32 6.25 88 85 70-130 3.41 30 <br />N-Nitrosodi-n-propylamine 0.937 0.865 1.25 75 69 60-130 8.02 30 <br />N-Nitrosodiphenylamine 1.22 1.13 1.25 98 90 70-130 7.92 30 <br />Pentachlorophenol 0.222 0.214 0.31 71 68 50-130 4.06 30 <br />Phenanthrene 0.0528 0.0489 0.062 84 78 60-130 7.59 30 <br />Phenol 0.242 0.237 0.25 97 95 60-130 2.00 30 <br />Pyrene 0.0596 0.0566 0.062 95 91 70-130 5.18 30 <br />Pyridine 1.14 1.18 1.25 91 94 60-130 2.91 30 <br />(Cont.) <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 55 of 68