GCMS analysis results, sample AE12322, June 2002

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Gas chromatography mass spectrometry results for sample AE12322 including surrogate recovery data analyzed on June 7, 2002.

NYC-WTC_000014260–000014280

Folder label: “GCMS X 5/24/02 A 5/29/02”

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69Z7.0000 OLM-OAN Library search compound Report

Data File : C:\MSDCHEM\l\DATA\052902\12322.D Vial: 10 Acq On : 29 May 2002 5:25 pm Operator: McLean Sample : gc/ms scan 5/24 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 2 Methylene Chloride Concentration Rank 2 R.T. EstConc Area Relative to ISTD R.T. 3.70 5.31 ug/L 3433150 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Methylene Chloride 84 CH2C12 000075-09-2 96 2 Methylene Chloride 84 CH2C12 000075-09-2 94 3 Methylene Chloride 84 CH2C12 000075-09-2 90 4 Methylene Chloride 84 CH2C12 000075-09-2 74 Abundance Scan 105 (3.696 min): 12322.D (-93) (-) m/z 49.10 100.00% 49 84

5000

88 3.40 3.60 3.80 4.00 35 39 43 ol11 11 I < 1 | I 1 |T| I . I I | I| >■ | I 1 ! 1 | | I I | /fl I I | Il || | ! .58................ 1 Hmm ‘14* ‘I .... I...»I.... I11>1 m/z 84.00 65.28% 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 84 5000 T‘ 11 < । > । ■ 3.40 3.60 3.80 4.00 m/z 86.00 47.87% 14 18 24i 11, 2831 353841 88 0 11 | 1 1 ■ 1 | ■ ■ ! 11 i > 1 1 | ! I I ! i ! , | | ! t 11 ! I ( , I , 12111111 < 11111111.;7011 Hi 11111 |TTt - t 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 3.40 3.60 3.80 4.00

M 5000 m/z 51.10 29.70%

0 .52 57 67 71 77 . 88 2831 3538 43 |rn uiii'liiKlHiiliiiiliiiiiKi Hmm n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111041: Methylene Chloride 49 3.40 3.60 3.80 4.00 m/z 47.10 15.44% 84 5000

46 2629 41 | ,52 59 65 73 77 88 o TT | 1 1 I 1 | I ! I >■( 1 > 1 ■ | ■ 1 1 1 | I I I | | | ! I | | | I I 1 | I I | I | | TTmmuumnomourt 1'1' I<1<<HI<<< 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.40 3.60 3.80 4.00

12322.D 052202.M Mon Jun 03 10:49:34 2002 Page 5

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NYC-WTC_000014269Source: NYC Law Department, mirrored locally

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