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I <br /> 1534 Willow Pass Road, Pittsburg, CA 94565- 1701 <br /> M c C a m p b e I l Analytical , Inc . I Muss <br /> Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br /> " When Quality Counts " http://www.mccampbell.com / E-mail: maindnccampbell.com <br /> Quality Control Report <br /> Client : GHD Services, Inc. WorkOrder: 2001909 <br /> Date Prepared : 01/22/2020 BatchID : 192689 <br /> Date Analyzed : 01 /22/2020 - 01/23/2020 Extraction Method : SW5030B <br /> Instrument: GC16 , GC18 Analytical Method : SW8260B l <br /> Matrix: Soil Unit : mg/kg <br /> Project: 11208412; Ripon Replacement Sample ID : MB/LCS/LCS13492689 <br /> QC Summary Report for SW8260B <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val % REC Limits <br /> tert-Amyl methyl ether (TAME) ND 0 . 00100 0 . 00500 <br /> Benzene ND 0.00160 0 .00500 <br /> t-Butyl alcohol (TBA) ND 0. 00530 0.0500 - - <br /> 1 ,2-Dibromo-3-chloropropane ND 0.00370 0. 00500 - - <br /> 1 ,2-Dibromoethane (EDB) ND 0.00130 0.00400 - - <br /> 1 ,2-Dichloroethane (1 ,2-DCA) ND 0.00140 0.00400 - - <br /> Diisopropyl ether (DIPE) ND 0.00140 0.00500 - <br /> Ethylbenzene ND 0 .00250 0 .00500 - - <br /> Ethyl tert-butyl ether (ETBE) ND 0 . 00130 0 .00500 - - - <br /> Methyl-t-butyl ether (MTBE) ND 0. 00130 0.00500 - - - <br /> Naphthalene ND 0. 00440 0. 00500 - - - <br /> Toluene ND 0. 00240 0. 00500 - - - <br /> m , p-Xylene ND 0 .00400 0.00500 - - <br /> o-Xylene ND 0.00180 0.00500 - - - <br /> Surrogate Recovery <br /> Dibromofluoromethane 0. 122 0 . 125 98 66-112 <br /> Toluene-d8 0 . 136 0. 125 109 92-109 <br /> 4-BFB 0 .0114 0. 0125 91 72-112 <br /> Benzene-d6 0 .0977 0. 1 98 81 -126 <br /> Ethylbenzene-d10 0. 110 0. 1 110 92-138 <br /> 1 ,2-DCB-d4 0. 0815 0. 1 81 68-108 <br /> (Cont.) <br /> CA ELAP 1644 • NELAP 4033ORELAP <br /> Page 24 of 36 <br />