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QC SampleResults Q <br /> Client: Conestoga-Rovers&Associates, Inc. TestAmerica Job ID:440-66282-1 r❑ <br /> Project/Site:4315 Waterloo Rd.,Stockton, CA <br /> Method: 8260B -Volatile Organic Compounds(GC/MS) (Continued) <br /> Lab Sample ID:LCS 440-154347/5 Client Sample ID:Lab Control Sample - <br /> Matrix:Water Prep Type:Total/NA <br /> Analysis Batch:154347 Q <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> Ethylbenzene 50.0 54.0 ug/L 108 70-130 • <br /> Vinyl acetate 50.0 46.1. ug/l- 92 48-140 ❑ <br /> 2-Butanone(MEK) 50.0 53.5 ug/L 107 44-150 <br /> 4-Methyl-2-pentanone(MIBK) 50.0 50.5 ug/L 101 59-149 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> • <br /> 4-Bromofluorobenzene(Surr) 105 80-120 <br /> Dibromofluoromethane(Surr) 100 76-132 } <br /> .x <br /> Toluene-d8(Surr) 103 80-128 t V <br /> Lab Sample ID:440-66452-C-1 MS Client Sample ID:Matrix Spike <br /> Matrix:Water Prep Type:Total/NA <br /> Analysis Batch:154347 I1 <br /> 7Q <br /> Sample Sample Spike MS MS %Rec. <br /> Analyte - Result Qualifier Added Result Qualifier Unit D %Rec Limits �G frry <br /> 1,1,1,2-Tetrachloroethane ND 25.0 30.7 ug/L 123 60.149 !1_lkl <br /> 1,1,1-Trichloroethane ND 25.0 28.5 ug/L 114 70-130 <br /> 1,1,2,2-Tetrachloroethane ND 25.0 26.7 ug/L 107 63-130 <br /> ---------------- - ----- --- --...__.......__ .__... .......... -.-..__. <br /> 1,1,2-Trichloroethane ND 25.0 27.0 ug/L 108 70_130 <br /> 1,1-Dichloroethane 0.97 25.0 24.1 ug/L 93 65-130 <br /> 1,1-Dichloroethene 2.8 25.0 29.9 ug/L 109 70-130 <br /> ................ <br /> 1,1-Dichloropropene ND 25.0 29.7 ug/L 119 64-130 <br /> 1,2,3-Tdchlorobenzene ND 25.0 25.7 ug/L 103 60-140 <br /> 1,2,3-Tdchloropropane ND 25.0 26.0 ug/L 104 60-130 <br /> 1,2,4-Trichlorobenzene ND 25.0 28.2 ug/L 113 60.140 <br /> 1,2,4-Trimethylbenzene ND 25.0 27.0 ug/L 108 70.130 <br /> 1,2-Dibromo-3-Chloropropane ND 25.0 25.6 ug/L 102 48-140 <br /> 1,2-Dibromoethane(EDB) ND 25.0 26.6 -ug/L-- 106 70-131 <br /> 1,2-Dichlorobenzene ND 25.0 27.7 ug/L 111 70-130 <br /> 1,2-Dichloroethane ND 25.0 28.9 ug/L116 56-146 <br /> ---------- - ---------- _ <br /> 1,2-Dichloropropane ND 25.0 27.4 ug/L 110 69-130 <br /> 1,3-Dichlorobenzene ND 25.0 27.2 ug/L 109 70-130 <br /> 1,3-Dichloropropane ND 25.0 25.7 ug/L 103 70-130 <br /> 1,4-Dichlorobenzene ND 25.0 27.0 ug/L 108 70-130 <br /> 2,2-Dichloropropane ND 25.0 27.3 ug/L 109 69-138 <br /> 2-Chlorotoluene ND 25.0 26.2 ug/L 105 70-130 <br /> 4-Chlorotoluene ND 25.0 . . 28.4 ug/L 114 70.130 <br /> Benzene ND 25.0 24.9 ug/L 100 66-130 <br /> Bromobenzene ND 25.0 27.6 ug/L 11070-130 <br /> --- --- - -- --- ------------ --- -- -- <br /> -- -1------- <br /> Bromochloromethane ND 25.0 24.5 ug/L 98 70-130 <br /> Bromodichloromethane ND 25.0 30.6 ug/L 123 70-138 <br /> Bromoform ND 25.0 29.0 ug/L 116 59-150 <br /> Bromomethane ND 25.0 28.9 ug/L 116 62-131 <br /> Carbon tetrachloride ND 25.0 34.3 ug/L 137 60-150 <br /> Chlorobenzene ND 25.0 25.8 ug/L 103 70-130 <br /> Chloroethane ND 25.0 28.4 ug/L .114 68-130 <br /> 2-Hexanone ND 25.0 21.8 ug/L 87 10-150 <br /> Chloroform ND 25.0 24.9 ug/L 100 70-130 <br /> TestAmerica Irvine <br /> Page 15 of 36 1/13/2014 <br />