GCMS blank analysis results, June 5 2002

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Laboratory report showing non-detect levels of volatile organic compounds in a GCMS blank sample analyzed on June 5, 2002.

NYC-WTC_000015496–000015523

Folder label: “GCMS X 6/4/02 A 6/4/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\MSDCHEM\l\DATA\060402\604LB.D Vial: 3 Acq On 4 Jun 2002 5:29 pm Operator: McLean Sample 6/4 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e 2** Quant Method : C:\MSDCHEM\1\METHODS\060302 .M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 18 3-Benzofurancarboxylic acid... Concentration Rank 18

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

35.36 0.25 ug/L 77196 Perylene-dl2 34.65

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 3-Benzofurancarboxylic acid, 2-[... 282 C17H14O4 040800-98-4 5 2 Pyrazine, 3,5-dimethyl-2-(2-prop... 148 C9H12N2 055138-70-0 < 3 Pyrazine, 2,5-dimethyl-3-(2-prop... 148 C9H12N2 055138-69-7 5 41-Cyclohexen, l-cyano-4-isoprope... Abundance 147 C10H13N 1000126-4 -8 5 Scan 5495 (35.365 min): 604LB.D (-5490) (-) m/z 147.00 100.00% 73 147 221

5000 355 96 191 282 ■ i ■ ■ ■ ■ i ■ 1 ' 1 1 ’■-i-i । । । 40 35.00 35.20 35.40 35.60 0-mmmpr i “ “ i•■ “ i■■■■i■■■■i■1•11■■111111111 ■ ■ ■ 1 •" ■ i “ ■ ■ i ■ m/z 73.05 86.69% miz—> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 Abundance #87976:3-Benzofurancarboxylic acid, 2-[(2-hydroxyphenyl)m... 221 250

282 5000 165 35.00 35.20 35.40 35.60 44 m/z 221.10 72.81% 194 O--mmmhlaphalpun1| pmmmmmmm 1 77 97 139

n/z—> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 Abundance #66163: Pyrazine, 3,5-dimethyl-2-(2-propenyl)- 147 "I T T~r 35.00 35.20 35.40 35.60 5000 m/z 355.00 46.39% 39 । 68 122 —4 4ehan fi 106 । A ।, m/z—> ov ■ ■ i • ■" i “ ■ i " ■' i " " i1 ■ “ i ■ ■'11 ■ ■ ■ ■ i ■ ■ ‘ ■ i ■" • i ■ ■" i' 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 Abundance #66165: Pyrazine, 2,5-dimethyl-3-(2-propenyl)- 147 35.00 35.20 35.40 35.60 m/z 209.00 39.16%

50001 42 1 122 27 , 68 106 0-1 h ifi .4i । # enir TT 11a I ___________________ ‘"‘‘1′441 1‘* ! I ] ! . I > ! . 4 . ( _________________________ , I’ ■ I ] I I I ■ ] I I I I | I I I I | I ■ I i | I n/z—> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 35.00 35.20 35.40 35.60

604LB.D 060302.M Wed Jun 05 12:28:55 2002 Page 21

NYC-WTC_000015520

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NYC-WTC_000015520Source: NYC Law Department, mirrored locally

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GCMS blank analysis results, sample AE11799, May 2002 · Box DEP Box 15

NYC-WTC_000012751

Gas chromatography-mass spectrometry blank analysis for sample AE11799 showing results below method reporting limits for semivolatile organic compounds, dated May 28, 2002.

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