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QC Sample Results <br />Client: Stantec Consulting Corp. <br />Project/Site: 7-11 #19976 <br />Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued) <br />Lab Sample ID: LCS 320-140984/6 <br />Matrix: Solid <br />Analysis Batch: 140984 <br />TestAmerica Job ID: 320-24082-1 <br />Client Sample ID: Lab Control Sample <br />Prep Type: Total/NA <br />Analyte <br />Spike <br />Added <br />LCS LCS <br />Result Qualifier <br />Unit <br />D %Rec <br />%Rec. <br />Limits <br />4-Chlorotoluene <br />50.0 <br />54.05 <br />ug/Kg <br />108 <br />67-128 <br />Benzene <br />50.0 <br />50.64 <br />ug/Kg <br />101 <br />78-128 <br />Bromobenzene <br />50.0 <br />51.61 <br />ug/Kg <br />103 <br />67-132 <br />Bromochloromethane <br />50.0 <br />47.83 <br />ug/Kg <br />96 <br />80-127 <br />Bromodichloromethane <br />50.0 <br />50.74 <br />ug/Kg <br />101 <br />80-137 <br />Bromoform <br />50.0 <br />50.84 <br />ug/Kg <br />102 <br />80-136 <br />Bromomethane <br />50.0 <br />43.72 <br />ug/Kg <br />87 <br />48-164 <br />Carbon tetrachloride <br />50.0 <br />52.44 <br />ug/Kg <br />105 <br />62-154 <br />Chlorobenzene <br />50.0 <br />50.56 <br />ug/Kg <br />101 <br />74-125 <br />Chloroethane <br />50.0 <br />48.69 <br />ug/Kg <br />97 <br />54-148 <br />Chloroform <br />50.0 <br />50.02 <br />ug/Kg <br />100 <br />78-135 <br />Chloromethane <br />50.0 <br />39.65 <br />ug/Kg <br />79 <br />60-141 <br />cis-1,2-Dichloroethene <br />50.0 <br />49.08 <br />ug/Kg <br />98 <br />74-131 <br />cis- 1,3-Dichloropropene <br />50.0 <br />51.29 <br />ug/Kg <br />103 <br />80-134 <br />Dibromomethane <br />50.0 <br />49.86 <br />ug/Kg <br />100 <br />80-129 <br />Dichlorodifluoromethane <br />50.0 <br />37.93 <br />ug/Kg <br />76 <br />60-130 <br />Ethylbenzene <br />50.0 <br />52.01 <br />ug/Kg <br />104 <br />72-125 <br />Hexachlorobutadiene <br />50.0 <br />48.23 <br />ug/Kg <br />96 <br />52-140 <br />Isopropylbenzene <br />50.0 <br />51.30 <br />ug/Kg <br />103 <br />69-137 <br />Methyl tert-butyl ether <br />50.0 <br />49.18 <br />ug/Kg <br />98 <br />66-146 <br />Methylene Chloride <br />50.0 <br />46.17 <br />ug/Kg <br />92 <br />77-125 <br />Naphthalene <br />50.0 <br />42.40 <br />ug/Kg <br />85 <br />53-140 <br />n-Butylbenzene <br />50.0 <br />55.70 <br />ug/Kg <br />111 <br />68-136 <br />N-Propylbenzene <br />50.0 <br />55.39 <br />ug/Kg <br />111 <br />63-128 <br />p-Isopropyltoluene <br />50.0 <br />54.75 <br />ug/Kg <br />109 <br />64-137 <br />sec-Butylbenzene <br />50.0 <br />55.32 <br />ug/Kg <br />111 <br />68-131 <br />Styrene <br />50.0 <br />50.68 <br />ug/Kg <br />101 <br />79-128 <br />tert-Butyl alcohol (TBA) <br />500 <br />472.0 <br />ug/Kg <br />94 <br />46-181 <br />tert-Butylbenzene <br />50.0 <br />52.58 <br />ug/Kg <br />105 <br />67-131 <br />Tetrachloroethene <br />50.0 <br />51.08 <br />ug/Kg <br />102 <br />65-135 <br />Toluene <br />50.0 <br />50.19 <br />ug/Kg <br />100 <br />80-124 <br />trans-1,2-Dichloroethene <br />50.0 <br />49.46 <br />ug/Kg <br />99 <br />67-135 <br />trans-1,3-Dichloropropene <br />50.0 <br />51.12 <br />ug/Kg <br />102 <br />80-148 <br />Trichloroethene <br />50.0 <br />51.25 <br />ug/Kg <br />103 <br />80-126 <br />Trichlorofluoromethane <br />50.0 <br />50.04 <br />ug/Kg <br />100 <br />43-158 <br />Vinyl chloride <br />50.0 <br />46.11 <br />ug/Kg <br />92 <br />67-127 <br />Xylenes, Total <br />100 <br />101.9 <br />ug/Kg <br />102 <br />75-122 <br />LCS LCS <br />Surrogate %Recovery Qualifier Limits <br />1,2-Dichloroethane-d4 (Surr) 94 32-156 'ED <br />4-Bromofluorobenzene (Surr) 99 63-143 <br />Dibromofluoromethane (Surr) 99 55-129 RECEIV <br />Toluene-d8 (Surr) 104 63-138 <br />DEC 9 2016 <br />ENVIRONMENTAL HEALTH <br />DEPARTMENT <br />TestAmerica Sacramento <br />Page 16 of 28 12/9/2016 <br />[7] <br />