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GCMS analysis results for sample AE11926, June 2002

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Laboratory report documenting GCMS analysis of sample AE11926 conducted on June 4, 2002, including surrogate recovery data.

NYC-WTC_000013476–000013495

Folder label: “GCMS X 5/22/02 A 5/23/02”

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NYC 9/11 Public Portal Document Quantitation Report (QT Reviewed) Data File : C:\MSDCHEM\l\DATA\052302\11927.D vial: 7 Acq On : 23 May 2002 2:51 pm Operator: Mclean Sample : 5/22ad Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: EVENTS.E Quant Time: May 29 09:44:48 2002 Quant Results File: 052202.RES

Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Last Update : Wed May 29 09:44:24 2002 Response via : Initial Calibration DataAcq Meth : 508SCAN Internal Standards R.T. Qlon Response Cone Units Dev(Min) 1) 1,4-Dichlorobenzene-d4 9.90 152 4197202 40.00 ug/L 0.00 10) Napthalene-d8 13.39 136 16686282 40.00 ug/L -0.01 17) Acenapthalene-dlO 18.53 164 9189176 40.00 ug/L 0.00 29) Phenanthranene-dlO 22.91 188 14304496 40.00 ug/L 0.00 37) Chrysene-dl2 30.76 240 9441484 40.00 ug/L -0.04 43) Perylene-dl2 34.66 264 4949641 40.00 ug/L -0.02

System Monitoring Compounds 27) TCMX 20.51 209 1731521 40.83 ug/L 0.00 Spiked Amount 40.000 Recovery = 102.08% Target Compounds Qvalue 2) n-nitros-dimethyl amine 0.00 74 0 N.D. 3) bis(2-Chloroethyl)ether 0.00 93 0 N.D. 4) 1,3-Dichlorobenzene 0.00 146 0 N.D. 5) 1,4-Dichlorobenzene 0.00 146 0 N.D. 6) 1,2-Dichlorobenzene 0.00 146 0 N.D. 7) 2,2'oxybis(1-Chloropropane 0.00 45 0 N.D. 8) N-nitroso-di-propylamine 0.00 70 0 N.D. 9) Hexachloroethane 0.00 117 0 N.D. 11) Nitrobenzene 0.00 77 0 N.D. 12) 1sophorone 0.00 82 0 N.D. 13) bis(2-Chloroethoxy) methan 0.00 93 0 N.D. 14) 1,2,4-Trichlorobenzene 0.00 180 0 N.D. 15) Napthalene 0.00 128 0 N.D. 16) Hexachlorobutadiene 0.00 225 0 N.D. 18) 2-Chloronaphthalene 0.00 162 0 N.D. 19) Dimethylphthalate 0.00 163 0 N.D. 20) 2,6-Dinitrotoluene 0.00 165 0 N.D. 21) Acenapthylene 0.00 152 0 N.D. 22) Acenapthalene 0.00 153 0 N.D. 23) 2,4-Dinitrotoluene 0.00 165 0 N.D. 24) Diethylphthalate 20.10 149 24181 N.D. 25) 4-Chlorophenyl-phenylether 0.00 204 0 N.D. 2 6) Fluorene 0.00 166 0 N.D. 28) Azobenzene 20.51 77 32127 N.D. 30) Nnitrosodiphenylamine 20.51 169 32895 N.D. 31) 4-Bromophenyl-phenylether 0.00 248 0 N.D. 32) Hexachlorobenzene 0.00 284 0 N.D. 33) Phenanthrene 0.00 178 0 N.D. 34) Anthracene 0.00 178 0 N.D. 35) Di-n-butylphthalate 0.00 149 0 N.D.

(#) = qualifier out of range (m) = manual integration 11927.D 052202.M Wed May 29 09:48:05 2002 Page 1

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