GCMS blank results, April 2002

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Gas chromatography mass spectrometry blank analysis report showing non-detect levels for various organic compounds.

NYC-WTC_000060990–000060998

Folder label: “GCMS X 3/27/02 A 4/11/02”

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File : C:\MSDCHEM\l\DATA\041002\LBA0410.D Vial: 12 Acq On : 10 Apr 2002 11:07 pm Operator: Bohllc Sample : LB 3/27/02 Inst Instrumen Mise : Multiplr: 1.00 MS Integration Params: BENZO.P Quant Time: Apr 15 16:40:32 2002 Quant Results File: 5080402BB.RES

Quant Method C:\MSDCHEM\l\5973N\5080402BB.M (RTE Integrator) Title Quantitation For Method 508gcscan Last Update Mon Apr 15 15:56:12 2002 Response via Initial Calibration DataAcq Meth 508SCAN

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

1) 1,4-Dichlorobenzene-d4 9.41 152 498443 40.00 ug/L 0.00 10) Naphthalene-d8 12.88 136 2250381 40.00 ug/L -0.01 17) Acenaphthene-dlO 17.99 164 1281383 40.00 ug/L -0.01 30) Phenanthrene-dlO 22.34 188 1787315 40.00 ug/L -0.01 39) Chrysene-dl2 30.14 240 1280798 40.00 ug/L -0.02 45) Perylene-dl2 34.01 264 754150 40.00 ug/L -0.01

System Monitoring Compounds 28) TCMX (SURR) 19.95 244 14453 5.33 ug/L 0.00 Spilced Amount 10.000 Recovery = 53.30% 38) 2,4-DDD (SURR) 0.00 235 0 0.00 ug/L Spilled Amount 5.000 Recovery = 0.00%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 0.00 74 0 N.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. 29) Azobenzen/ 1,2-Diphenylhyd 0.00 77 0 N.D. 31) N-Nitrosodiphenylamine 0.00 169 0 N.D. 32) 4-Bromophenyl-phenyl ether 0.00 248 0 N.D. 33) Hexachlorobenzene 0.00 284 0 N.D. 34) Phenanthrene 0.00 178 0 N.D. 35) Anthracene 0.00 178 0 N.D. 36) Di-n-butylphthalate 0.00 149 0 N.D. 37) Fluoranthene 0.00 202 0 N.D. 40) Pyrene 0.00 202 0 N.D. 41) Butylbenzylphthalate 0.00 149 0 N.D. 42) Benzo (a) antracene 0.00 228 0 N.D. d 43) Bis (2-ethylhexyl) phthala 30.77 149 52358 2.27 ug/L 96 44) Chrysene 0.00 228 0 N.D. d

(#) = qualifier out of range (m) = manual integration LBA0410.D 5080402BB.M Mon Apr 15 16:45:20 2002 Page 1

NYC-WTC_000060991

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NYC-WTC_000060991Source: NYC Law Department, mirrored locally

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