GCMS analysis results, sample AE05238, March 2002

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GCMS analysis of sample AE05238 performed on 3/29/02 showing 2,4-DDD surrogate compound recovery at 152% with unspecified qualifier flag.

NYC-WTC_000059048–000059056

Folder label: “GCMS X 3/9/02 A 3/16/02”

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File C:\MSDCHEM\l\DATA\031602\5238.D Vial: 15 Acq On : 16 Mar 2002 10:20 pm Operator: McLean Sample : 3/9 Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: BENZO.P Quant Time: Mar 20 08:43:13 2002 Quant Results File: 5080302.RES

Quant Method C:\MSDCHEM\l\5973N\5080302.M (RTE Integrator) Title Quantitation For Method 508gcscan Last Update Thu Mar 14 13:02:27 2002 Response via Initial Calibration DataAcq Meth 508SCAN

Internal Standards R.T. Qlon Response Cone Units Dev(Min)

1) 1,4-Dichlorobenzene-d4 9.54 150 1471852 20.00 ug/L 0.00 10) Naphthalene-d8 13.03 136 4114123 20.00 ug/L 0.00 17) Acenaphthene-dlO 18.13 164 2246589 20.00 ug/L 0.00 29) Phenanthrene-dlO 22.50 188 3427680 20.00 ug/L 0.00 38) Chrysene-dl2 30.30 240 3139012 20.00 ug/L -0.02 44) Perylene-dl2 34.18 264 1740331 20.00 ug/L 0.00

System Monitoring Compounds 37) 2,4-ddd surr 27.43 235 310301 7.59 ug/L 0.00 Spiked Amount 5.000 Recovery = 151.80%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 0.00 74 0 N.D. d 3) bis(2-chloroethyl) ether 0.00 93 0 N.D. 4) 1,3 - Dichlorobenze 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-Chloropr 0.00 45 0 N.D. 8) N-Nitroso-di-n-propylamine 0.00 70 0 N.D. 9) Hexachloroethane 0.00 117 0 N.D. 11) Nitrobenzene 0.00 77 0 N.D. 12) Isophorone 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) Naphthalene 0.00 128 0 N.D. 16) Hexachlorobutadiene 0.00 225 0 N.D. 18) Hexachlorocyclopentadiene 0.00 237 0 N.D. 19) 2-chloronaphthalene 0.00 162 0 N.D. 20) Dimethylphthalate 0.00 163 0 N.D. 21) 2,6-Dinitrotoluene 0.00 165 0 N.D. d 22) Acenaphthylene 0.00 152 0 N.D. 23) Acenaphthene 0.00 153 0 N.D. 24) 2,4-Dinitrotoluene 0.00 165 0 N.D. 25) Diethylphthalate 0.00 149 0 N.D. 26) 4-Chlorophenyl-phenyl ethe 0.00 204 0 N.D. 27) Fluorene 0.00 166 0 N.D. 28) Azobenzen/ 1,2-Diphenylhyd 0.00 77 0 N.D. 30) N-Nitrosodiphenylamine 0.00 169 0 N.D. 31) 4-Bromophenyl-phenyl ether 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. d 36) Fluoranthene 0.00 202 0 N.D. 39) Pyrene 0.00 202 0 N.D. 40) Butylbenzylphthalate 0.00 149 0 N.D. 41) Benzo (a) antracene 0.00 228 0 N.D. d 42) Bis (2-ethylhexyl) phthala 0.00 149 0 N.D. d 43) Chrysene 0.00 228 0 N.D. d 45) Di-n-Octylphthalate 0.00 149 0 N.D. 46) Benzo (b) fluoranthene 0.00 252 0 N.D.

(#) = qualifier out of range (m) = manual integration 5238.D 5080302.M Wed Mar 20 08:44:19 2002 Page 1

NYC-WTC_000059M0

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