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COLUMBIA ANALYTICAL SERVICES, INC. <br />QA/QC Report <br />Client: Shaw Environmental & infrastructure, Inc Service Request: P0700704 <br />Project: Foothill Landfill, San Joaquin County (New Wells)/124591 Date Extracted: 08/06/2007 <br />Sample Matrix: Water Date Analyzed: 08/14/2007 - <br />08/22/2007 <br />Lab Control Spike/Duplicate Lab Control Spike Summary <br />Semi -Volatile Organic Compounds by GC1MS <br />Extraction Method: EPA 3520C <br />Analysis Method: 8270C <br />Analyte Name <br />Lab Control Sample <br />KWG0708458-2 <br />Lab Control Spike <br />Result Expected %Rec <br />Duplicate Lab Control Sample <br />KWG0708458-3 <br />Duplicate Lab Control Spike <br />Result Expected %Rec <br />Units: ug/L <br />Basis: NA <br />Level: Law <br />Extraction Lot: KWG0708458 <br />%Rec .RPD <br />Limits RPD Limit <br />N-Nitrosodimethylamine <br />72.3 <br />100 <br />72 <br />81.7 <br />100 <br />82 <br />38-125 <br />12 <br />30 <br />Bis(2-chloroethyl) Ether <br />68.4 <br />100 <br />68 <br />72.5 <br />100 <br />72 <br />48-114 <br />6 <br />30 <br />Phenol <br />67.0 <br />100 <br />67 <br />71.8 <br />100 <br />72 <br />42-117 <br />7 <br />30 <br />2 -Chlorophenol <br />72.3 <br />100 <br />72 <br />79.1 <br />100 <br />79 <br />48-115 <br />9 <br />30 <br />Benzyl alcohol <br />70.9 <br />100 <br />71 <br />79.4 <br />100 <br />79 <br />48-114 <br />11 <br />30 <br />Bis(2-chloroisopropyl) Ether <br />62.5 <br />100 <br />63 <br />71.0 <br />100 <br />71 <br />42-113 <br />I3 <br />30 <br />2-Methylphenol <br />68.9 <br />100 <br />69 <br />74.3 <br />100 <br />74 <br />46-113 <br />8 <br />30 <br />N-Nitrosodi-n-propylamine <br />67.5 <br />100 <br />67 <br />75.5 <br />100 <br />75 <br />48-120 <br />11 <br />30 <br />4-Methylphenol <br />69.0 <br />100 <br />69 <br />77.9 <br />100 <br />78 <br />45-115 <br />12 <br />30 <br />Nitrobenzene <br />67.5 <br />100 <br />67 <br />76.3 <br />100 <br />76 <br />51-114 <br />12 <br />30 <br />Isophorone <br />65.1 <br />100 <br />65 <br />69.7 <br />100 <br />70 <br />45-129 <br />7 <br />30 <br />2-Nitrophenol <br />78.6 <br />100 <br />79 <br />88.3 <br />100 <br />88 <br />49-118 <br />12 <br />30 <br />2,4 -Dimethylphenol <br />69.9 <br />100 <br />70 <br />79.6 <br />100 <br />80 <br />20-116 <br />13 <br />30 <br />Bis(2-chloroethoxy)methane <br />65.5 <br />100 <br />66 <br />74.8 <br />100 <br />75 <br />49-112 <br />13 <br />30 <br />2,4-Dichlorophenol <br />76.5 <br />100 <br />77 <br />83.6 <br />100 <br />84 <br />48-116 <br />9 <br />30 <br />4-Chloroaniline <br />73.2 <br />100 <br />73 <br />78.5 <br />100 <br />78 <br />24-121 <br />7 <br />30 <br />4-Chloro-3-methylphenol <br />79.4 <br />100 <br />79 <br />85.3 <br />100 <br />85 <br />51-119 <br />7 <br />30 <br />2 -Methylnaphthalene <br />73.1 <br />100 <br />73 <br />79.6 <br />100 <br />80 <br />40-107 <br />9 <br />30 <br />Hexachlorocyclopentadiene <br />23.7 <br />100 <br />24 <br />21.7 <br />100 <br />22 <br />10-65 <br />9 <br />30 <br />2,4,5 -Trichlorophenol <br />87.6 <br />100 <br />88 <br />90.6 <br />100 <br />91 <br />53-121 <br />3 <br />30 <br />2-Chloronaphthalene <br />77.2 <br />100 <br />77 <br />81.0 <br />100 <br />81 <br />44-110 <br />5 <br />30 <br />2-Nitroaniline <br />84.5 <br />100 <br />84 <br />90.2 <br />100 <br />90 <br />52-121 <br />7 <br />30 <br />Acenaphthylene <br />78.9 <br />100 <br />79 <br />80.4 <br />100 <br />80 <br />51-120 <br />2 <br />30 <br />Dimethyl Phthalate <br />88.6 <br />100 <br />89 <br />95.0 <br />100 <br />95 <br />58-119 <br />7 <br />30 <br />2,6-Dinitrotoluene <br />96.3 <br />100 <br />96 <br />108 <br />100 <br />108 <br />58-123 <br />11 <br />30 <br />Acenaphthene <br />77.5 <br />100 <br />78 <br />82.3 <br />100 <br />82 <br />49-112 <br />6 <br />30 <br />3-Nitroaniline <br />85.9 <br />100 <br />86 <br />101 <br />100 <br />101 <br />40-127 <br />16 <br />30 <br />2,4-Dinitrophenol <br />81.1 <br />100 <br />81 <br />94.3 <br />100 <br />94 <br />15-135 <br />15 <br />30 <br />Dibenzofuran <br />80.7 <br />100 <br />81 <br />85.1 <br />100 <br />85 <br />50-113 <br />5 <br />30 <br />4-Nitrophenol <br />89.7 <br />100 <br />90 <br />98.7 <br />100 <br />99 <br />47-131 <br />10 <br />30 <br />2,4-Dinitrotoluene <br />91.2 <br />100 <br />91 <br />106 <br />100 <br />106 <br />57-128 <br />15 <br />30 <br />Fluorene <br />78.8 <br />100 <br />79 <br />84.4 <br />100 <br />84 <br />51-117 <br />7 <br />30 <br />4-Chlorophenyl Phenyl Ether <br />82.9 <br />100 <br />83 <br />86.8 <br />100 <br />87 <br />51-117 <br />5 <br />30 <br />Diethyl Phthalate <br />92.8 <br />100 <br />93 <br />107 <br />100 <br />107 <br />54-127 <br />14 <br />30 <br />4-Nitroaniline <br />85.5 <br />100 <br />85 <br />101 <br />100 <br />101 <br />43-125 <br />16 <br />30 <br />Results flagged with an asterisk (") indicate values outside control criteria. <br />Percent recoveries and relative percent differences (RPD) are determined by the software using values in the calculation which have not been rounded. <br />10 0078 <br />Printed: 08/30/2007 14:43:03 Foran 3C - Organic Page i of 2 <br />u:\Steaith\Crystai.rpt\Fotm3DLC.rpt Superset References RR76030 <br />0 <br />n <br />n <br />�l <br />n <br />v <br />Ci <br />G <br />[11 <br />11 <br />