GCMS analysis results, sample AE12479, June 2002

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Laboratory report showing GCMS analysis results for sample AE12479 including surrogate recovery data on June 10, 2002.

NYC-WTC_000014485–000014508

Folder label: “GCMS X 5/28/02 A 5/29/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052902\12479.D Vial: 21 Acq On : 30 May 2002 2:22 am Operator: McLean Sample : gc/ms scan 5/28 fb 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 15 Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 11 Methylene Chloride Concentration Rank 12 R.T. EstConc Area Relative to ISTD R.T. 4.87 0.30 ug/L 207392 1,4-Dichlorobenzene-d4 9.90 Hit# Of 5 Tentative ID MW MolForm CAS# Qual 1 Methylene Chloride 84 CH2C12 000075-09-2 a 2 Methylene Chloride 84 CH2C12 000075-09-2 9 3 Methylene Chloride 84 CH2C12 000075-09/2 9 4 Krypton 84 Kr 007439-90-9 9 Abundance Scan 304 (4.865 min): 12479.D (-302) (-) m/z 84.00 ‘100.00% 49 81

5000' 58 1 ■ ■ ■ । ■ ■ • • । ■ ■ • ■ । ■ • ■ • ।11 ■1 37 42 4.60 4.80 5.00 5.20 88 nz-> Of q ‘1’1’111112171121111111 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 " ■ i" m/z 49.10 95.19% Abundance #111041: Methylene Chloride 49

84 5000 ' 1 ‘ ’ I ‘ * k ‘ I ' ‘ ‘I+*‘‘I‘’*’ 4.60 4.80 5.00 5.20 46 m/z 51.00 55.39% 2629 41 | ,>2 59 65 73 77 88 0! 11 ।.,.. j. ., 1111 11111 > 111J 11111 n | 11 11111 11 | I TTuanummgmmmt Hmm miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111039: Methylene Chloride 49 84 4.60 4.80 5.00 5.20 5000 m/z 86.00 33.24%

2831 3538 43 Ot ■ ■ i ■ “ ■ i ‘' ■ ■ i ■ ■ ■ ■ i ■ ■ ■ ■ i 1111J111} I f J11»111JI TI2 57 67 71 77 —nuOmmmmonor 88 H wd miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #12327: Methylene Chloride 49 4.60 4.80 5.00 5.20 84 m/z 58.10 24.20% 5000

14 18 24 2831 353841 11 88 0: .. ।.,. > ।. 1111 > 11111111111,111 111111111111! 1 —12 70 um—ma 111 T TH - n/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.60 4.80 5.00 5.20

12479.D 052202.M Mon Jun 03 11:41:54 2002 Page 14

NYC-WTC_000014503

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NYC-WTC_000014503Source: NYC Law Department, mirrored locally

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