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McCampbell Analytical Inc. 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbeU.com/E-mail:main@mcempbell.com <br /> Quality Control Report <br /> Client: Ponder Environmental Services WorkOrder: 2009E33 <br /> Date Prepared: 09/29/2020 BatchID: 206438 <br /> Date Analyzed: 09/29/2020 Extraction Method: SW5030B <br /> Instrument: GC38 Analytical Method: SW8260B <br /> Matrix: Water Unit: µg/L <br /> Project: 20-16350;Flying J Ripon Sample ID: MB/LCS/LCSD-206438 <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 /> Acetone 41.6 38.1 40 104 95 32-138 8.74 20 <br /> tert-Amyl methyl ether(TAME) 4.20 3.95 4 105 99 62-119 6.23 20 <br /> Benzene 4.17 4.00 4 104 100 71-126 4.27 20 <br /> Bromobenzene 4.49 3.93 4 112 98 66-117 13.1 20 <br /> Bromochloromethane 4.24 4.03 4 106 101 67-124 5.28 20 <br /> Bromodichloromethane 4.20 3.96 4 105 99 63-119 6.00 20 <br /> Bromoform 4.27 3.91 4 107 98 46-117 8.62 20 <br /> Bromomethane 4.10 3.95 4 102 99 32-171 3.62 20 <br /> 2-Butanone(MEK) 16.4 16.9 16 103 106 48-136 3.14 20 <br /> t-Butyl alcohol(TBA) 14.7 14.2 16 92 89 40-131 3.67 20 <br /> n-Butyl benzene 4.31 3.93 4 108 98 75-125 9.12 20 <br /> sec-Butyl benzene 4.40 3.90 4 110 98 72-120 12.0 20 <br /> tert-Butyl benzene 4.30 3.79 4 108 95 63-118 12.6 20 <br /> Carbon Disulfide 4.20 4.04 4 105 101 64-126 4.02 20 <br /> Carbon Tetrachloride 4.17 3.98 4 104 99 67-122 4.73 20 <br /> Chlorobenzene 4.25 3.96 4 106 99 71-117 7.23 20 <br /> Chloroethane 4.03 3.77 4 101 94 53-136 6.73 20 <br /> Chloroform 4.22 4.01 4 105 100 67-126 5.19 20 <br /> Chloromethane 4.15 3.90 4 104 97 42-148 6.35 20 <br /> 2-Chlorotoluene 4.50 4.03 4 113 101 70-117 11.0 20 <br /> 4-Chlorotoluene 4.27 3.74 4 107 93 67-117 13.3 20 <br /> Dibromochloromethane 4.21 3.84 4 105 96 52-120 9.12 20 <br /> 1,2-Dibromo-3-chloropropane 1.95 1.65 2 97 83 38-128 16.6 20 <br /> 1,2-Dibromoethane(EDB) 1.95 1.82 2 97 91 58-117 7.02 20 <br /> Dibromomethane 4.21 3.99 4 105 100 66-120 5.30 20 <br /> 1,2-Dichlorobenzene 4.36 3.79 4 109 95 71-117 14.1 20 <br /> 1,3-Dichlorobenzene 4.33 3.94 4 108 98 74-116 9.57 20 <br /> 1,4-Dichlorobenzene 4.31 3.79 4 108 95 71-115 12.9 20 <br /> Dichlorodifluoromethane 3.86 3.43 4 97 86 29-145 11.8 20 <br /> 1,1-Dichloroethane 4.44 4.24 4 111 106 68-128 4.56 20 <br /> 1,2-Dichloroethane(1,2-DCA) 4.16 3.96 4 104 99 61-123 4.78 20 <br /> 1,1-Dichloroethene 4.28 4.10 4 107 103 65-126 4.08 20 <br /> cis-1,2-Dichloroethene 4.20 3.95 4 105 99 71-122 6.08 20 <br /> trans-1,2-Dichloroethene 4.18 3.94 4 105 98 70-126 6.05 20 <br /> 1,2-Dichloropropane 4.36 4.14 4 109 103 67-124 5.33 20 <br /> 1,3-Dichloropropane 3.74 3.26 4 93 81 65-120 13.7 20 <br /> 2,2-Dichloropropane 3.81 4.38 4 95 110 71-127 14.0 20 <br /> 1,1-Dichloropropene 4.36 4.24 4 109 106 69-122 2.61 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 13 of 23 <br />