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Document / 103 pages

DEP form with redacted names, Jan 24 2002

Machine-extracted title · confidence 75%

Multi-page DEP form containing redacted personal names and references to site operations in January 2002.

NYC-WTC_000000423–000000525

Folder label: “524 1/24/02

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Scanned page image, NYC-WTC_000000511
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\HPCHEM\l\DATA\02JAN24\1403.D Vial: 15 Acq On : 25 Jan 2002 4:08 am Operator: 201-wb Sample : nyc 524 Inst : GC/MS Ins Misc : January 24, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\HP010702.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 3 3-Cyclobutene-1,2-dione, 3,4-d Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T. --------------------------------------------------------------------- 15.83 0.13 ug/L 72197 1,4-DIFLUOROBENZENE 15.17

Hit# of 5 Tentative ID MW MolForm CAS# Qual --------------------------------------------------------------------- 1 3-Cyclobutene-1,2-dione, 3,4-dihydr 114 C4H204 002892-51-5 74 2 Cyclopropanecarboxylic acid 86 C4H602 001759-53-1 64 3 Propanal, 3-(methylthio)- 104 C4H80S 003268-49-3 64 4 Pentanoic acid, 4,4-dimetnyl-3-oxo- 1/2 LyHlbW Ul /Uy4-34- / 64 Abundance Scan 685 (15.834 min): 1403.D (-) z 114.10 100.00% I 1i4

88 155 199 74 it 104 133 15.40 15.60 15.80 16.00 16.20 m z 38.10 49.58% 30 90 100110120130140150160 3-Cyclobutene-1,2-dione, 3,4-dihydroxy- 58

.41.0 114 15.40 15.60 15.80 16.00 16.20 m/z 63.00 48.39% 41 68 86 40 50 60 70 80 90 1001101 160 170 180 1 #62797: Cyclopropan

1 15.40 15.60 15.80 16.00 16.20 1 410 85 m/z 37.20 43.70%

68

40 50 60 70 80 90 1001101 1801 #63604: Propanal, 15.40 15.60 15.80 16.00 16.20 m/z 39.40 38.29%

61 76 104

100 110 120 130 1 15.40 15.60 15.80 16.00 16.20

1403.D HP010702.M Mon Jan 28 11:14:03 2002 Page 3

NYC-WTC 000000511

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NYC-WTC_000000511Source: NYC Law Department, mirrored locally

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