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GCMS comments for sample AD2653S detecting 1,1,2,2-Tetrachloroethane

Machine-extracted title · confidence 100%

Analysis report dated December 16, 2001, identifying 1,1,2,2-Tetrachloroethane at 3.4 ug/L in sample AD2653S.

NYC-WTC_000031814–000031830

Folder label: “GCMS X 11/6/01 A 12/7/01

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\HPCHEM\l\DATA\DEC0701\26535.D vial: 10 Acq On 8 Dec 2001 2:19 am Operator: GALOS Sample gc/ms unknown 11/6 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 7 2-Hexanol, 3-methyl- Concentration Rank 8

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

10.53 0.40 ng/uL 120030 1,4-Dichlorobenzene-d4 11.88

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Hexanol, 3- methyl - 116 C7H160 002313-65-7 40 2 2-Hexanol, /3,4-dimethyl- 130 C8H180 019550-05-1 38 3 Oxirane, -methyl-3-propyl-, cis- 100 C6H120 006124-90-9 36 4 1-Pentag 1, 2,2-dimethyl- 116 C7H160 002370-12-9 10 Abundance Scan 621 (10.534 min): 26535.D (-) m/z 100.00% 43

5000 57 85 69 10.20 10.40 10.60 10.80

m/z-> 111" I —.l+4 HH+ ml70..... 80m85 20 25 30 35 40 45 50 55 60 65 75 T‘ 90 95 100105110115120 m/z 45.05 80.30% Abundance #3372: 2-Hexanol, 3-methyl- 45

5000- TPPPMPYr 10.20 10.40 10.60 10.80

27 70 m/z 41.10 34.21% 56 98 83 l'"'l 1...... in | 'I1 " 'I TTTTTT 11 ’ " 11" ‘ 11 miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105110115120 Abundance #5529: 2-Hexanol, 3,4-dimethyl- 45 \ AA ■ ' । ■ 10.20 LL Go 10.40 10.60 10.80 5000 m/z 85.05 22.38% 27 I ' 56 84 69 I 97 112 " i" ■' i' i" " r " ■ i"'11" " r'" r "' i" " r "' r "' i1 ■ ■ ■ i'1 11111 11.... 1.... 1.... 1.... P... 1. m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115120 Abundance ! #1531: Oxirane, 2-methyl-3-propyl-, cis- 4 .... —A 10.20 10.40 10.60 ■ i ■ • ■ ■ i 10.80 m/z ,57.10 21.80% 57 5000 71 85

m/z-> T‘ ‘‘ITTTTI J ' " 1 r 1111 TTT’IIIUTTT IET‘‘T ....... 1 100 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115120 N • ' I • 10.20 10.40 10.60 10.80

26535.D NP112701.M Thu Dec 13 11:25:09 2001 Page 7

NYC-WTC_000031828

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NYC-WTC_000031828Source: NYC Law Department, mirrored locally

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