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 1 3-Pentanol, 3-methyl- Concentration Rank 2

R.T. EstConc Area Relative to ISTD R.T.

7.62 3.19 ug/1 1105200 1,4-Dichlorobenzene-d4 11.68

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 3-Pentanol, 3-methyl- 102 C6H140 000077-74-7 36 2 1,3-Dioxolane, 2-methyl- 88 C4H802 000497-26-7 9 3 Silane, tetramethyl- 88 C4H12Si 000075-76-3 9 4 Pentane, 3-methoxy- 102 C6H140 036839-67-5 9 Abundance Scan 280 (7.619 mln): 30602.D (-) m/z 73.00 1 00.00% 73

5000 43 1***‘*‘‘I** • ‘ । ■ |, | 49 55 50 । ( 67, 87 103 7.20 7.40 7.60 7.80 8.00 ■ ■ i • ■ • ‘ i ■ ■ ■ ■ i ■ u 38 11/6/8/4 ‘I‘A-AI i i'|'i, 1r • i ■ • ■ ■ i 1 1 1 1 i 1 1 1 1 I ' m/ z 43.05 31.88% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #63573: 3-Pentanol, 3-methyl- 73

5000 | i ... । . rri-| । । । i । ‘tT i । i i 7.20 7.40 7.60 7.80 8.00 55 m/z 45.05 11.91% 27 45 87 ‘ ‘ I ' ' 1 ' I ‘ ‘ | 3?, ‘ ‘ I ' ■ ‘ ‘ | 1 I'l l **/ 1 * • I ’ ’ « » I I » I I J J 1 I I I I miz- > 10 20 30 40 50 60 70 80 90 100 110 Abundance #82902: 1,3-Dioxolane, 2-methyl- 73 I ' ■ ’ I3T* । | i i i i f i PT17 7.20 7.40 7.60 7.80 8.00 5000 43 m/z 41.05 11.21% j ; 58 I 87 27 ■ ■ i ' ■ ■ ■ i ' ■ ■ • i ■ • ■ ■ i '» i i » ■ । > 1 1 ■ i — < i ■ • • • j ■ ■ ■ • l * * i ■ i ■ miz-> 10 20 30 40 50 60 80 90 100 110 Abundance #62932: Silane, tetramethyl- TTT7 ‘"I F 1 73 7.20 7.40 7.60 7.80 8.00 m/z 71.00 6.86% 5000

45 15 , .1 53 59 * * I 1 ' ’ ‘ 1 , * • ‘ FI1* | I I > । | rtrtpIIr [............ 88.......................... ‘ 1 1 1 I ■ ' । - l ■ ■ ■ IPPTi 1111 m/z—> 10 20 30 40 50 60 70 80 90 100 ‘ ‘ 110 7.20 7.40 7.60 7.80 8.00

30602.D GCMS0103.M Thu Jan 10 15:44:57 2002 Page 1

NYC-WTC_000017253

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NYC-WTC_000017253Source: NYC Law Department, mirrored locally

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