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QC Sample.Results <br /> Client:Conestoga-Rovers&Associates, Inc. TestAmerica Job ID:440-66282-1 ❑ <br /> Project/Site:4315 Waterloo Rd.,Stockton,CA <br /> Method: 82608-Volatile Organic Compounds (GC/MS) (Continued) <br /> Lab Sample ID:440-66452-C-1 MS Client Sample ID:Matrix Spike /7 <br /> Matrix:Water Prep Type:Total/NA <br /> Analysis Batch:154347 <br /> Sample Sample Spike MS MS %Rec. <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits <br /> Chloromethane ND 25.0 26.9 ug/L 108 39.144 J (�• <br /> cis-1,2-Dichloroethene ND 25.0 26.1 ug/L 104 70_130 <br /> cis-1,3-Dichloropropene ND 25.0 29.0 ug/L 116 70_133 <br /> Acetone ND 25.0 17.2 ug/L 69 10-150 <br /> Dibromochloromethane ND 25.0 28.7 ug/L 115 70-148 <br /> Dibromomethane ND 25.0 27.8 ug/L 111 70-130 <br /> -- -- --- .......................... <br /> Dichlorodifluoromethane ND 25.0 30.1 ug/L 121 25-142 <br /> Isopropyl Ether(DIPE) ND 25.0 22.9 ug/L 91 64-138 <br /> Ethyl-t-butyl ether(ETBE) ND 25.0 24.3 ug/L 97 70-130 <br /> - -- --- -- --- -- - -- ------ <br /> i <br /> Isopropyl benzene ND 25.0 28.9 ug/L 116 70.132 <br /> m,p-Xylene ND 50.0 52.7 ug/L 105 70-133 f] � <br /> Methylene Chloride ND 25.0 20.8 ug/L 83 52-130 {� <br /> ... <br /> Methyl-t-Butyl Ether(MTBE) ND 25.0 24.1 ug/L 96 70-130 <br /> Naphthalene ND 25.0 23.2 ug/L 93 60.140 <br /> n-Butylbenzene ND 25.0 29.0 ug/L 116 61-149 r <br /> Carbon disulfide ND 25.0 .20.3 ug/L 81 49_140 <br /> N-Propylbenzene ND 25.0 28.0 ug/L 112 66-135 <br /> o-XyleneND 25.0 25.8 ug/L 103 70.133 <br /> 4-Isopropyltoluene ND 25.0 29.8 ug/L 119 70---130 <br /> sec-Butyl benzene ND 25.0 28.7 ug/L 115 67-134 <br /> Styrene ND 25.0 23.1 ug/L 92 29-150 <br /> ................ . ......... ...- -- --- - --..__..._.:.--..__ ...-................_ <br /> Tert-amyl-methyl ether(TAME) ND 25.0 24.2 ug/L 97 68_133 <br /> tert-Butyl alcohol(TBA) ND 125 135 ug/L 108 70-130 <br /> tert-Butylbenzene ND 25.0 29.4 ug/L 117 70.130 <br /> Tetrachloroethene ND 25.0 28.3 ug/L 113 70-137 <br /> Toluene ND 25.0 25.6 ug/L 103 70-130 <br /> trans-1,2-Dichloroethene ND 25.0 25.6 ug/L 102 70-130 <br /> trans-1,3-Dichloropropene ND 25.0 29,0 ug/L' 116 70-138 <br /> Trichloroethene ND 25.0 28.4 ug/L 112 70-130 <br /> Trichlorofluoromethane ND 25.0 33,0 ug/L 132 60-150- <br /> ------------------- <br /> - _-- ------- ---- --------- --- ------- --- --- ------ <br /> Vinyl chloride ND 25.0 30.3 ug/L 121 50-137 <br /> 1,3,5-Trimethylbenzene ND 25.0 28,1 ug/L 113 70-130 <br /> Ethylbenzene ND 25.0 26.7 ug/L107 70_130 <br /> __------ ------ --- --- -- - ._. .. <br /> --. <br /> Vinyl acetate ND 25.0 21.9 ug/L 88 23-150 <br /> 2-Butanone(MEK) ND 25.0 19.0 ug/L 76 48_140 <br /> 4-M ethyl-2-penta none(MIBK) ND 25.0 22.8 ug/L 91 52-150 <br /> MS MS <br /> Surrogate %Recovery Qualifier Limits <br /> 4-Bromofluorobenzene(Surr) 104 80-120 <br /> Dibromofluoromethane(Surr) 99 76-132 <br /> Toluene-118(Surr) 106 80 <br /> Lab Sample ID:440-66452-C-1 MSD Client Sample ID:Matrix Spike Duplicate <br /> Matrix:Water Prep Type:Total/NA <br /> Analysis Batch:154347 j <br /> Sample Sample Spike MSD MSD %Rec. RPD <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> 1,1,1,2-Tetrachloroethane ND 25.0 31.4 ug/L 125 60_149 2 20 <br /> TestAmerica Irvine <br /> Page 16 of 36 1/13/2014 <br />