GCMS analysis results, sample AD30602, January 2002

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Gas chromatography-mass spectrometry analysis report for sample AD30602 showing detection of 2,4-DDD and other unknown compounds, analyzed January 22, 2002.

NYC-WTC_000017246–000017264

Folder label: “GCMS X 12/17/01 A 12/28/01 1/3/01 1/4/01”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : M:\INSTRU~1\209\DATA\DEC2701\30602.D Vial: 30 Acq On : 28 Dec 2001 6:18 pm Operator: 209 GALOS Sample : GC/MS SCAN 12/17 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 7 3-1sopropoxy-1,1,1,7,7,7-hexam Concentrat ion Rank 7 R.T. EstConc Area Relative to ISTD R.T. 26.89 0.82 ug/l 390042 Phenanthrene-dl0 24.99

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 3-Isopropoxy-1,1,1,7,7,7 -hexamethyl 576 C18H52O7S17 071579-69-6 38 2 Trisiloxane, 1,1,1,5,5,5-hexamethyl 384 C12H3604Si5 003555-47-3 37 3 1,1,1, X,5,5,7,7,7-Nonamethyl-3-(tri 384 C12H3604Si5 038146-99-5 25 4 Butane ic acid, 3-methyl-2-[(trimeth 262 CllH26O3Si2 055124-92-0 17 Abundance / Scan 2379 (26.888 min): 30602.0 (-) m/ z 73.0,0 100.00% 73

5000 147 221 281 — 26.60 26.80 27.00 27.20 1 45 TTr IPT 191 117 av i 327,355 401429 .4.749-., n ■ 1 ■ ■ i ■ i ■ ■ ■ ■ i ■ ■ ■ ■ i ■ ■ m/z 147.0p 32.99% miz-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #60503:3-Isopropoxy-1,1,1,7,7,7-hexamethyl-3,5,5-tris(trim 73

/ k 5000 I l | • » I I I »I I I | »'« 4 > | LT 147 26.60 26.80 27.00 27.20 221 281 m/z 281.00 17.35% 327, 415 519 561 ' • l ‘ ’ I • ' • ‘ I ’ ‘ ‘ ‘ l ’ f * • I ' ‘ f' l ' -11-11-TITITIT miz-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #74103; Trisiloxane, 1,1 1.5.5.5-hexamethyl-3,3-bis[(trimet 73 147 )_____________ dt.namkkm[m10/00//8R 26.60 26.80 27.00 27.20 5000 m/z 221.05 15.42% 281 45 369 117 207 249 ( [ ’ ‘ 1 * ’ ' I * * ‘ **1a*/*****411140haa/a/n.n ^z~> 50 100 150 200 250 300 350 400 450 500 550 Abundance #52460:1,1,1,3.5,5,7.7,7-Nonamethyl-3-(trimethylsiloxy)tet __________ /____________ ■ ■ i • ‘ ■ i f ■ i 1 1 1 1 I ' ' ' 73 26.60 26.80 27.00 27.20, m/z 74.0p 9.06% 281 5000 147

369 207 45 ,.......... / x • * i 1 ' -r-r-j-r-r T | I I I I j I J I I | I I I I | I I 4 I | I > I I j J I

m/z-> 50 100 150 200 250 300 350 400 450 500 550 26.60 26.80 27.00 27.20

30602.D GCMS0103.M Thu Jan 10 15:45:30 2002 Page 7

NYC-WTC_000017259

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NYC-WTC_000017171

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