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QC Sample Results <br /> Client Conestoga-Rovers&Associates, Inc. TestAmerica Job ID: 440-66281-1 <br /> Project/Site: 1267 Country Club Blvd , Stockton, CA <br /> Method: 8270C LL-Semivolatile Organic Compounds by GCMS - Low Levels (Continued) <br /> Lab Sample ID: LCSD 440-153246/3-A Client Sample ID: Lab Control Sample Dup <br /> Matrix:Water Prep Type:Total/NA <br /> Analysis Batch: 153747 Prep Batch: 153246 <br /> Spike LCSD LCSD %Rec. RPD <br /> Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit <br /> Bis(2-chioroethoxy)methane 10.0 7.36 ug/L 74 57-120 2 20 <br /> Bis(2-chloroethyl)ether 10.0 6.83 ug/L 68 54-120 5 20 <br /> Bis(2-ethylhexyl)phthalate 10.0 6.87 ug/L 69 57-124 3 20 <br /> Butyl benzyl phthalate 10.0 7.74 ug/L 77 57-129 7 20 <br /> Chrysene 10.0 7.78 ug/L 78 63-109 3 20 <br /> Dibenz(a,h)anthracene 10.0 8.24 ug/L 82 56-124 1 25 <br /> Dibenzofuran 10.0 7.20 ug/L 72 59-109 10 20 <br /> Diethyl phthalate 10.0 7.93 ug/L 79 44-131 9 30 <br /> Dimethyl phthalate 10.0 7.45 ug/L 75 33-140 10 30 <br /> Fluoranthene 10.0 8.77 ug/L 88 64-120 3 20 <br /> Fluorene 10.0 7.93 ug/L 79 52-120 12 20 <br /> Hexachlorobenzene 10.0 7.46 ug/L 75 60-105 8 20 <br /> Hexachlorobutadiene 10.0 526 ug/L 53 34-120 5 25 <br /> Hexachlorocyclopentadiene 10.0 ND ug/L 27 23-120 4 30 <br /> Hexachloroethane 10.0 5.23 ug/L 52 34-120 7 25 <br /> Indeno[1,2,3-cdjpyrene 10.0 8.82 ug/L 88 59-128 5 25 <br /> Isophorone 10.0 8.25 ug/L 83 50-120 8 20 <br /> Naphthalene 10.0 6.79 ug/L 68 52-120 4 20 <br /> Nitrobenzene 10.0 7.10 ug/L 71 52-120 3 25 <br /> N-Nitrosodi-n-propylamine 10.0 7.44 ug/L 74 60-120 0 20 <br /> N-Nitrosodiphenylamine 10.0 7.48 ug/L 75 58-120 4 20 <br /> Pentachlorophenol 10.0 8.07 ug/L 81 20-137 8 25 <br /> Phenanthrene 10.0 8.14 ug/L 81 62-120 2 20 <br /> Phenol 10.0 6.70 ug/L 67 20-120 4 25 <br /> bis(2-chloroisopropyl)ether 10.0 6.75 ug/L 68 45-120 4 20 <br /> Di-n-butyl phthalate 10.0 8.54 ug/L 85 60-126 3 20 <br /> Di-n-octyl phthalate 10.0 8.11 ug/L 81 56-117 7 20 <br /> Pyrene 10.0 8.31 ug/L 83 54-120 4 25 <br /> LCSD LCSD <br /> Surrogate %Recovery Qualifier Limits <br /> 2,4,6-Tribromophenol(Surr) 81 40-120 <br /> 2-Fluorobiphenyl 66 50-120 <br /> 2-Fluorophenol(Surr) 61 30-120 <br /> Nitrobenzene-d5(Surr) 70 45-120 <br /> Phenol-d6(Surr) 68 35-120 <br /> Terphenyl-d14(Sun) 75 37-144 <br /> Method: 8082-Polychlorinated Biphenyls (PCBs) by Gas Chromatography <br /> Lab Sample ID:MB 440-153724/1-A Client Sample ID:Method Blank <br /> Matrix:Water Prep Type:Total/NA <br /> Analysis Batch: 154299 Prep Batch: 153724 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> Aroclor 1016 ND 1.0 ug/L 01/02/14 06:53 01/06/14 20.52 1 <br /> Aroclor 1221 ND 1.0 ug/L 01/02/14 06:53 01/06/14 20:52 1 <br /> Aroclor 1232 ND 1.0 ug/L 01/02/14 06:53 01/06/14 20:52 1 <br /> Aroclor 1242 ND 1.0 ug/L 01/02/14 06:53 01/06/14 20:52 1 <br /> TestArnerica Irvine <br /> Page 22 of 33 1/13/2014 <br />