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1 <br /> I <br /> 1534 Willow Pass Road, Pittsburg, CA 94565- 1701 <br /> M c C a m p b e I l Analytical , Inc . Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br /> " When Quality Counts " httpJ/Nvww.inccampbeH.com / E-mail: main@mccampbefl.com <br /> Quality Control Report <br /> Client: G> D 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 <br /> Matrix: Soil Unit : mg/kg <br /> Project: 11208412; Ripon Replacement Sample ID : MB/LCS/LCSD492689 <br /> QC Summary Report for SW8260B <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val % REC % REC Limits Limit <br /> tert-Amyl methyl ether (TAME) 0 . 0135 0 . 0138 0 . 020 67 69 54-98 1998 20 <br /> Benzene 0. 0168 0 .0169 0.020 84 84 71 -115 0.299 20 <br /> t-Butyl alcohol (TBA) 0.0656 0 . 0614 0 .080 82 77 29-142 6 .64 20 <br /> 1 ,2-Dibromo-3-chloropropane 0 .00589 0.00588 0 .010 59 59 36-103 0.222 20 <br /> 1 , 2-Dibromoethane (EDB) 0 .00747 0.00765 0. 010 75 76 66-101 2.36 20 <br /> 1 ,2-Dichloroethane (112-DCA) 0 .0163 0.0166 0. 020 82 83 59-112 1955 20 <br /> Diisopropyl ether (DIPE) 0 . 0148 0.0148 0.020 74 74 57-110 0.0412 20 <br /> Ethylbenzene 0. 0187 0 . 0191 0.020 93 95 80-128 2 . 19 20 <br /> Ethyl tert-butyl ether (ETBE) 0.0147 0 . 0146 0.020 74 73 54-106 0 .682 20 <br /> Methyl-t-butyl ether (MTBE) 0.0154 0.0153 0 .020 77 77 60-102 0. 0534 20 <br /> Naphthalene 0.00779 0.00812 0 . 020 39 41 29-65 4. 18 20 <br /> Toluene 0 . 0178 0.0181 0. 020 89 91 78-121 1 .55 20 <br /> m , p-Xylene 0. 0344 0 .0358 0.040 86 89 80-122 4.00 20 <br /> o-Xylene 0.0172 0 .0178 0.020 86 89 79-116 3 .55 20 <br /> Surrogate Recovery <br /> Dibromofluoromethane 0 . 122 0. 122 0 . 12 97 97 66-112 0.293 20 <br /> Toluene-d8 0 . 133 0. 135 0. 12 107 108 92-109 1 .38 20 <br /> 4-BFB 0 . 0113 0.0113 0.012 90 90 72-112 0.366 20 <br /> Benzene-d6 0.0986 0 . 101 0. 10 99 101 81 -126 2.20 20 <br /> Ethylbenzene-d10 0. 109 0 . 112 0. 10 109 112 92-138 3 . 15 20 <br /> 1 ,2-DCB-d4 0.0871 0. 0894 0 . 10 87 89 68-108 2 .69 20 <br /> CA ELAP 1644 • NELAP 4033ORELAP <br /> Page 25 of 36 <br />