GCMS analysis results, sample AE07519, April 2002

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Gas chromatography-mass spectrometry analysis of sample AE07519 performed on April 11, 2002, showing unknown compounds and 2,4-DDD surrogate at 98 ug with 5.0 ug MDL.

NYC-WTC_000047413–000047422

Folder label: “GCMS X 4/2/02 A 4/4/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\MSDCHEM\1\DATA\020404\07519.D Vial: 15 Acq On 4 Apr 2002 8:00 pm Operator: Nefliu Sample sample Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020403.M (Chemstation Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1

Peak Number 1 Formic acid, ethyl ester Concentration Rank 1

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

3.31 0.24 ug/1 167829 1,4-Dichlorobenzene-d4 10.66

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Formic acid, ethyl ester 74 C3H602 000109-94-4 3 2 Formic acid, ethyl ester 74 C3H602 000109-94-4 3 3 Formic acid, ethyl ester 74 C3H602 000109-94-4 3 4 Formic acid, ethyl ester 74 C3H602 000109-94-4 3 Abundance Scan 39 (3.308 min): 07519.D (-22) (-) m/z 84.00 100.00% 49 74 84 /

5000

" | " 1 1 | 1 । > i | " i । | I'''' I'''' I 40 3.20 3.30 3.40 3.50 3.60 3.70 0 " I" '' I ’1" I " '11'1 " I " " I' ’ " I I " ‘' I ’1 " I'' " I i ■■ ■■ i ■ "i11111 m/ z 74.00 96.65% m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #108297: Formic acid, ethyl ester 3h 28

5000 "' i " " r '111 ‘1 ■' ..................... .. ' i 45 3.20 3.30 3 40 3.50 3.60 3.70 m/z 49.10 87.91% — 74 /- 0 1' I' ‘r' r '1' r '' ■ r ''' i 3942 ,4851 5659 1 " | " I11111 H .. ।. i " 11! " । 6770 | । " 11111|!! " । u " । u 111! n 11 /z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #1035: Formic acid, ethyl ester 31 28 " i " " I i' ■ ■ ■ । i'''' i''' ■ i 3.20 3.30 3.40 3.50 3.60 3.70 5000 m/z 47.00 72.09%

0! m 121/.19..24 45

.A 48............... .......... .. 1’1 A MW M

n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #108300: Formic acid, ethyl ester "II TT 31 3.20 3.30 3.40 3.50 3.60 3 70 28 m/z 82.00 50.80% 5000 45

n/z-> o " i " " i " ‘' I " " r " ■ r 1 H 5659 T '1" i " ” 11" ' i " " I " " i " 111' “ ' r 1 " 111 " i " 1 r i 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ’ 1 I ‘'1' I " ‘11111111 ’ " I 3.20 3.30 3.40 3,50 3.60 3.70

NYC-WTC_000047419

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NYC-WTC_000047419Source: NYC Law Department, mirrored locally

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NYC-WTC_000047367

Laboratory report documenting GCMS analysis of environmental sample AE07514 conducted on April 11, 2002.

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