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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" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: American Integrated Services WorkOrder: 19071339 <br /> Date Prepared: 7/26/19 BatchID: 182440 <br /> Date Analyzed: 7/26/19 Extraction Method: SW5030B <br /> Instrument: GC38 Analytical Method: SW8260B <br /> Matrix: Water Unit: gg/L <br /> Project: 39150; 14800 W. Schulte Rd. Tracy Sample ID: MB/LCS/LCSD-182440 <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 46 48 40 114 120 32-138 5.06 20 <br /> tert-Amyl methyl ether(TAME) 4.1 4.1 4 101 101 62-119 0 20 <br /> Benzene 4.2 4.2 4 105 106 71-126 0.299 20 <br /> Bromobenzene 3.7 3.7 4 92 93 66-117 1.25 20 <br /> Bromochloromethane 4.0 4.0 4 99 100 67-124 1.48 20 <br /> Bromodichloromethane 4.1 4.2 4 103 104 63-119 0.637 20 <br /> Bromoform 3.1 3.2 4 78 80 46-117 2.49 20 <br /> Bromomethane 3.7 3.7 4 93 93 32-171 0 20 <br /> 2-Butanone(MEK) 18 18 16 110 112 48-136 1.11 20 <br /> t-Butyl alcohol(TBA) 16 17 16 103 107 40-131 3.72 20 <br /> n-Butyl benzene 4.3 4.4 4 107 109 75-125 1.66 20 <br /> sec-Butyl benzene 3.9 3.9 4 98 98 72-120 0 20 <br /> tert-Butyl benzene 3.6 3.6 4 91 91 63-118 0 20 <br /> Carbon Disulfide 3.4 3.5 4 86 87 64-126 0.863 20 <br /> Carbon Tetrachloride 4.5 4.5 4 113 113 67-122 0 20 <br /> Chlorobenzene 3.8 3.8 4 94 95 71-117 0.536 20 <br /> Chloroethane 3.7 3.8 4 93 96 53-136 2.67 20 <br /> Chloroform 4.4 4.4 4 111 111 67-126 0 20 <br /> Chloromethane 3.0 3.1 4 76 77 42-148 1.90 20 <br /> 2-Chlorotoluene 3.7 3.7 4 93 92 70-117 1.53 20 <br /> 4-Chlorotoluene 3.8 3.7 4 94 94 67-117 0 20 <br /> Dibromochlorom ethane 3.4 3.4 4 85 86 52-120 0.616 20 <br /> 1,2-Dibromo-3-chloropropane 1.5 1.5 2 74 77 38-128 3.23 20 <br /> 1,2-Dibromoethane(EDB) 1.7 1.7 2 85 86 58-117 1.18 20 <br /> Dibromomethane 4.1 4.1 4 102 103 66-120 0.431 20 <br /> 1,2-Dichlorobenzene 3.7 3.7 4 93 93 71-117 0 20 <br /> 1,3-Dichlorobenzene 3.8 3.9 4 95 96 74-116 1.84 20 <br /> 1,4-Dichlorobenzene 3.7 3.7 4 92 93 71-115 0.396 20 <br /> Dichlorodifluoromethane 2.9 2.7 4 73 68 29-145 6.44 20 <br /> 1,1-Dichloroethane 4.2 4.2 4 104 105 68-128 0.539 20 <br /> 1,2-Dichloroethane(1,2-DCA) 4.5 4.6 4 113 114 61-123 0.919 20 <br /> 1,1-Dichloroethene 4.5 4.5 4 113 113 65-126 0 20 <br /> cis-1,2-Dichloroethene 4.1 4.0 4 101 101 71-122 0 20 <br /> trans-1,2-Dichloroethene 3.9 3.9 4 98 99 70-126 0.535 20 <br /> 1,2-Dichloropropane 4.2 4.2 4 104 104 67-124 0 20 <br /> 1,3-Dichloropropane 4.2 4.0 4 104 100 65-120 4.41 20 <br /> 2,2-Dichloropropane 4.7 4.7 4 117 116 71-127 0.678 20 <br /> 1,1-Dichloropropene 4.2 4.3 4 106 107 69-122 0.804 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 12 of 22 <br />