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GCMS analysis results for sample AE08251, April 2002

Machine-extracted title · confidence 100%

Laboratory report documenting GCMS analysis of sample AE08251 conducted on April 19, 2002, including surrogate recovery data.

NYC-WTC_000047772–000047801

Folder label: “GCMS X 4/8/02 A 4/17/02

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\MSDCHEM\1\DATA\020417\08251.D Vial: 9 Acq On : 17 Apr 2002 4:02 pm Operator: Nefliu Sample : sample Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\041702SCAN.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 4 Methylene Chloride Concentration Rank 5

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

3.73 0.60 ug/L 554695 1,4-Dichlorobenzene-d4 9.99 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 53 2 Methylene Chloride 84 CH2C12 000075-09-2 53 3 Methylene Chloride 84 CH2C12 000075-09-2 42 4 Methylene Chloride 84 CH2C12 000075-09-2 9 Abundance Scan 111 (3.731 min): 08251 D (-104) (-) m/z 49.00 100.00% 40 40

84 "pap/maoa 5000 35

44 88 3.40 3.60 3.80 4.00

n/z—> -4+ T‘‘I‘TTITTOOTTTT‘TTTITTISTTTT 11'111" ' 0+ " 11''' 111" I''1' 11" ' I' "11" ' 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 m/z 40.00 93.58% Abundance #111041: Methylene Chloride 40 84 5000 3.40 3 60 3.80 400 46 m/z 83.90 58.20%

Tl/Z-> 26 29 01 ' i ■1" i ■'r n ■ ■" ।1 5 41 .................... I1"!! ,|1152■. ।. ■ 59 65 73 77 ■. ।. ■ ■. । ■ ■. > । ■ > >.,.... ।’ 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 H 88 "MyHyypM"“Hlqy Abundance #111039 Methylene Chloride 40 84 340 3 60 3.80 4 00 5000- m/z 51.00 46.50%

88 MMMMsy/NMMpayat n/z-> 5 2831 35 38 43 | , 52 57 0- T‘TI00U0Un00mnp—tnpf |*i।■ I' 1111' 1111 > ।।'' ■ ■ ।<11' t 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 67 71 77 H Abundance #12327: Methylene Chlonde 40 3 40 3.60 3 80 4.00 84 m/z 35.10 42.51%

5000-

/z—> 0 14 18 24 2831 35 3841 70 Iu‘nnu—nmu—m—mnpuuHt — 88 | , 52 । । > । r |~i r 11 । i > > > । i ■ ■ i । । i i i । 11 i । | 11 r l'| H | । । i I I 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3 40 IL3 60 3.80 -4 4.00

08251.D 041702SCAN.M Thu Apr 18 09:12:13 2002 Page 9

NYC-WTC_000047784

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NYC-WTC_000047784Source: NYC Law Department, mirrored locally

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