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om 9 <br /> North State Environmental <br /> © Chemical Waste Disposal • Trucking • Consulting <br /> CERTIFICATE OF ANALYSIS <br /> Job Number: 98-1683 Date sampled : 12/10/98 <br /> Client Chromalab Date Analyzed: 12/23/98 <br /> Project 9812196 Date Reported: 12/31/98 <br /> Volatile Organics by GC/MS Method 8260 <br /> Quality Control/Quality Assurance Summary <br /> Laboratory Number 98-1683 MS/MSD RPD <br /> Client ID Blank Recovery <br /> Matrix SOIL SOIL <br /> Analyte Results %Recoveries <br /> ug/Kg <br /> o-Xylene ND<5 <br /> Styrene ND<5 <br /> Bromoform ND<5 <br /> Isopropyl Benzene ND<5 <br /> Bromobenzene ND<5 <br /> 1,1,2,2-Tetrachloroethane ND<5 <br /> n-Propyl Benzene ND<5 <br /> 'hlorotoluene ND<5 <br /> ,nlorotoluene ND<5 <br /> 1,3,5-Trimethylbenzene ND<5 <br /> t-Butylbenzene ND<5 <br /> 1,2,4-Trimethylbenzene ND<5 <br /> 1,3-Dichlorobenzene ND<5 <br /> 1,4-Dichlorobenzene ND<5 <br /> sec-Butylbenzene ND<5 <br /> 1,2-Dichlorobenzene ND<5 <br /> p-Isopropyltoluene ND<5 <br /> Butylbenzene ND<5 <br /> 1,2-Dibromo-3-Chloroethan ND<5 <br /> Naphthalene ND<5 <br /> 1,2,4-Trichlorobenzene ND<5 <br /> Hexachlorobutadiene ND<5 <br /> 1,2,3-Trichlorobenzene ND<5 <br /> 1,2,3-Trichloropropane ND<5 <br /> SUR-Dibromofluoromethane 86% Rec 92/88 4 <br /> SUR-Toluene d8 98% Rec 96/98 2 <br /> SUR-4-Bromofluorobenzene 103% Rec 100/101 1 <br /> R awed an roved <br /> John A. Murphy <br /> Laboratory Director <br /> Page 4 Of 4 <br /> P. 0 . Box 5624 South San Francisco, California 94083 650.588 .2838 FAX 588- 1950 <br />