GCMS analysis results for sample AE11926, June 2002

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Laboratory report documenting GCMS analysis of sample AE11926 conducted on June 4, 2002, including surrogate recovery data.

NYC-WTC_000013476–000013495

Folder label: “GCMS X 5/22/02 A 5/23/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052302\11927.D Vial: 7 Acq On : 23 May 2002 2:51 pm Operator: Mclean Sample : 5/22ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ****** * * ************************************************************* Peak Number 9 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 . R.T. EstConc Area Relative to ISTD R.T.

5.93 10.58 ug/L 6601650 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Q 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 86 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 78 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 72 4 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2/40 Abundance Scan 485 (5.929 min): 11927.D (-478) (-) m/z 43.10 100/00% 43

5000 59 „y।i।।।।i। 101 5.60 5.80 6.00 6.20 | Ot ..................... 381 14 53,, I,,,,69......... 83............. |........... m/z 59.10 37.67% 1 > | 1 1 I T | 1 I ' I | 1 1

niz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ’*1***1114 12.3 1.1 I 1 1 1 ' I 59 5.60 5.80 6.00 6.20 m/z 58.05 22.27% 15 34 101 01 .238 +53+ —1*m——TT 83 ■ ■■ H i. 1 1 1 1,1 1 i 1 ' 1 1 i r 1 1 1 1 1 mz-> 10 20 30 40 50 60 70 - 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 TFT 5.60 5.80 6.00 6.20 5000 m/z 101.10 14.83% 59 101 1 1 1 1 ' 1 1 I 1 1 1 । । 1 ' 138 .32 ol , 48 53,, 67 72 77 83 91 96, | Pi r i । । ’ I8 1-1 ■ l 1 I ■ ■ ■ ■ i ■ ■ ‘ ■ i ■ ■ ■ 1 i ■ ■ ' 1 miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- ' 1 l ■ ■ ■ ■ i 1 ' ' ' 721 ' i 1 ' 1 1 I 4)3 5.60 5.80 6.00 6.20 | m/z 41.10 6.56% 5000 59

63 . 101। 0- .............. , 381 • ■ I ■ ■ ■ 1 i 1 1 1 1 r1 1 1 1 r1 + 83 93 I 1 ' 1 1 i 1 1 1 1 i ‘ ‘ 1 1 i ■ ■ ‘ 1 i ■ ' ■ ■ i ■ YTTTTTTTP iz-> 10 20 30 40 50 60 70 80 90 100 110 5.60 5.80 6.00 6.20

11927.D 052202.M Wed May 29 09:48:14 2002 Page 12

NYC-WTC_000013492

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NYC-WTC_000013492Source: NYC Law Department, mirrored locally

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GCMS analysis results for sample AE11930, June 2002 · Box DEP Box 15

NYC-WTC_000013551

Laboratory report documenting GCMS analysis of sample AE11930 conducted on June 4, 2002.

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