GCMS analysis results, sample AE09973, May 2002

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Laboratory report for sample AE09973 showing surrogate recovery and unknown compounds from May 9, 2002.

NYC-WTC_000044025–000044054

Folder label: “GCMS X 4/25/02 A 5/7/02”

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Data File C:\MSDCHEM\1\DATA\050602\9973.D Vial : 21 Acq On 7 May 2002 3:59 am Operator: Mclean Sample 4/25 Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L Peak Number 12 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.97 10.32 ug/L 7321580 1,4-Dichlorobenzene-d4 9.94 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 78 2 2-Pentanone, 4-hydroxy-4-methyl - 116 C6H1202 000123-42-2 72 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 64 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 36 Abundance Scan 492 (5.970 min): 9973.D (-484) (-) m/ z 43.10 100.00% 43

5000 i . । . । । i J V T I i । i i i i yr 59 101 560 5.80 6.00 6.20 6.40 1 1 1 i 1 1 1 1 i 1 37 1 i 1 1 1 11 1 111 ' |'53, ''I 69 83 1 ..... I 1 1 1 1 i ' 1 ' 1 i ''' 1 1 i ■ 1 125 1 1 i ' ' m/z 59.10 35.68% m/z--> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43 ' i r1 1 1 i T 1 1 1 ) m 5000 59 560 5.80 6.00 6.20 6.40 m/z 58.05 22.10% 15 101

10 .,2531,374 53, i । । Ida —t———, I IOu,—DB83 mmumwT m/z-> 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 1 | । । । । [■ r ■ । i'। । । । 'r r । i T"r r । i 5.60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 14.70%

92 . 93 101 n/z-> ...... 10 20 25.31,37, 30 40 TTTH4+ 50 60 70 80 83 90 । 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- । j । i । । [ । । ।; । TII i [ । । । -1—j— |— 43 560 5.80 6.00 6.20 6.40 m/z 41.05 5.66% 5000

59 . 101 ........ 27.37, 1.......531‘ ‘ I’’’ .-j-r-i-f‘t‘i‘1 C’U’II 67 77 83 91 . | -) -T | 1 1 TT| — — . | I TYrpr-m p« m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20 6.40

9973.D 050102.M Tue May 07 15:52:03 2002 Page 16

NYC-WTC_000044045

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NYC-WTC_000044045Source: NYC Law Department, mirrored locally

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GCMS analysis results, sample AE09771, May 2002 · Box DEP Box 25

NYC-WTC_000043893

Laboratory report for sample AE09771 showing surrogate recovery and unknown compounds from May 9, 2002.

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