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\1\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 Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 7 Krypton Concentration Rank 11 R.T. EstConc Area Relative to ISTD R.T.

3.92 0.69 ug/L 478333 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Krypton 84 Kr 007439-90-9 7 2 Methylene Chloride 84 CH2C12 000075-09-25 3 Methylene Chloride 84 CH2C12 000075-09-2 4 4 Perdeuterobenzene 84 C6D6 001076-43-3 4 Abundance Scan 143 (3.919 min): 12479.D (-141) (-) m/z 84.00 00.00% 84

49 5000 t

37 70 ‘ ‘ I 1 ’ ‘ * I * ‘ 1 ■ i ’ 1 ■ ■ i 3.60 3.804.00 4.20 ,1,4043 0+ mmmgmpor I “ " I' ’ ' I ’ ” ' I' ‘1 ' 1 “ “ I “ “ ! ’ H m/ z 49.10 55.15% m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #33829: Krypton 84

50001 ■ ■ • i ■ ■ • ■ i • ■ ■ ■ i 1 ■ ■ ‘ i ■ ■ ■ ■ । 3.60 3.80 4.00 4.20 42 m/z .82.00 15.15% 80 0! T I . . . . ( .4 LHI l . . | . .1 | . I |‘ • IJI L । ■» “ j 11 “ ! i > 111 > i n j j “ ' j >, ।. T m/z—> 5 10 15 20253035404550556065 70 75 80859095 Abundance #12327: Methylene Chloride 40 84 3.60 3.80 4.00 4.20 5000 m/z 37.00 15.00%

Tl/z-> 14 18 24 2831 353841 Of TIHmmg 2 70 TT t - 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ■ I ■1 ■ ■ i 88 w„""MMLM Abundance #111040: Methylene Chloride ■ • ■ i ■ ■ ‘ ■ i ' ■ • ■ i ■ ■ ■ ' i ■ ■ ■ ‘ i 40 3.60 3.80 4.00 4.20 84 m/z 51.10 14.92% 5000 PWwnus, _/

m/z—> 14 0 TIMthmapmhpmmtn TT 2528 32 ,0841 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 35 52 1′111213331 70 11" ■■ I' ■ “11" + 88 1 ' 1 1 1 1 1 I 1 1 1 1 I * ■ • ■ i • ■ ■ ■ I 3.60 3.80 4.00 4.20

12479.D 052202.M Mon Jun 03 11:41:45 2002 Page 10

NYC-WTC_000014499

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NYC-WTC_000014499Source: NYC Law Department, mirrored locally

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