GCMS sample AE12761 results, June 10 2002

Machine-extracted title · confidence 90%

Gas chromatography-mass spectrometry analysis report for sample AE12761 detecting unknown compounds and surrogates.

NYC-WTC_000015439–000015463

Folder label: “GCMS X 6/3/02 A 6/6/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\1\DATA\060602\12762 .D vial: 8 Acq On 6 Jun 2002 5:00 pm Operator: McLean Sample 6/3 eh Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C: \DATABASE\NIST98 . L ********************************************************************* Peak Number 10 Methylene Chloride Concentration Rank 10 R.T. EstConc Area Relative to ISTD R.T.

4.90 0.58 ug/L 412786 1,4 -dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 90 2 Methylene Chloride 84 CH2C12 000075-09/2 78 3 Methylene Chloride 84 CH2C12 000075-09-2 64 4 Methylene Chloride 84 CH2C12 000075-09-2 9 Abundance Scan 309 (4.895 min): 12762.D (-307) (-) m/z 84.00 100.00% 49 84

5000

37 41 1 ■ ■ i ■ ■ ■ ■ i ■ • ‘ ■ i ■ ■ ■ ■ । ‘ । 4.60 4 80 5.00 5.20 01 '■ l'" 'i■"11" "111"I'1111""11 - mmeppmm m/z 49.10 93.71% miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111040: Methylene Chloride 49 84

5000 ■ ■ • । ‘ • i ■ • ■ ■ i ...................... ■ • i 4.60 4.80 5.00 5.20 35 m/z 86.00 65.43% 88 miz-> 14 2528 32 3841 Of TTTTTTTHH i•।•11> ।11111" ■ i [ 1 Tiij111 +92 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 70 H Abundance #111039: Methylene Chloride 49 ' ■ ■ ■ i ■ ' ‘ ■ i ■ ■ ■ ■ i ■ • ' ■ i ■ ' ■ ■ i 84 4.60 4.80 5.00 5.20 5000 m/z 51.05 34.71%

miz-> 2831 3538 43 ,152 57 0- ■■i■' ■111 ■' ■ i ■ ■ ■■i■■•11"1111111111111"1111 TT 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 67 71 77 i “ “ i" ■ ■ t1 ■" i ■11 88 - R Abundance #12327: Methylene Chloride 1 1 ■ i ■ ' ■ ■ i ■ ■ ■ ■ i ■ ■ ■ • i ■ ■ ■ ■ I 49 4.60 4.80 5.00 5.20 84 m/z 41.10 17.57% 5000

88 u-owutat.. 14 18 24 2831 353841 52 70 0’ T1m—mmmCp—np—mmpOTp——m—Tgr n—mETmmatt - ■ ‘ i ■ ■ ■ ■ i 1 ■ 1 ■ i 1 11 1 i1 1 111 m/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

12762.D 060302.M Mon Jun 10 10:26:45 2002 Page 13

NYC-WTC_000015456

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NYC-WTC_000015456Source: NYC Law Department, mirrored locally

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NYC-WTC_000015410

Gas chromatography-mass spectrometry analysis report for sample AE12743 detecting unknown compounds and surrogates.

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