GCMS sample analysis results, AE11799, June 3, 2002

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Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11799.

NYC-WTC_000012794–000012822

Folder label: “GCMS X 5-21-02 A 5-22-02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\MSDCHEM\l\DATA\052202\11799.D Vial: 6 Acq On : 22 May 2002 5:54 pm Operator: Mclean Sample : 5/21 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 5 Methylene Chloride Concentration Rank 12

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

3.82 0.83 ug/L 663811 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qu.

1 Methylene Chloride 84 CH2C12 000075-09- 83 2 Methylene Chloride 84 CH2C12 000075-09- 3 Methylene Chloride 84 CH2C12 000075-09-2 7 4 Methylene Chloride 84 CH2C12 000075-09-2 2 Abundance Scan 127 (3.825 min): 11799.D (-125) (-) m/z 49.10 100.00% - 49

5000 84

41 3.40 3.60 3.80 4.00 4.20 58 0- ~ .. 361,44 mmpmpmmmpt 87 Atpnp— m/z 84 ..00 45.71% mfe_> 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 3.40 3.60 3.80 4.00 4.20 m/z 41.10 14.93% 88 J 32_______ 70>. _____ , - 14 18 24 2831 353841 II .................................................................................... 0- ...ll ll.... I.... I.111... 1111.1111.I>11 |Fiu 111. i ] i >|. i. 11 ।। 11 miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111041: Methylene Chloride 49 84 3.40 3.60 3.80 4.00 4.20 ' 5000 m/z 50.05 8.71%

46 2629 41 | 152 59 65 73 77 88 01 .. ।. ■ i rprr. 11 n 11. i. i |lli 111 n > 11 >.. 11111 | I Tmmmugmmugf hyi -rrp-rr 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 3.40 3.60 3.80 4.00 4.20 m/z 58.10 6.00% 84 5000

88 2831 3538 43 ,!>2 57 67 71 77 . 0- THuH[Upm——mm—uptthur |r. 1. 111.. 111.. I r111 11... 11 11. | rrt 'I.. ...... n/z—> 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 4.20

11799.D 052202.M Tue May 28 12:02:50 2002 Page 8

NYC-WTC_000012806

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NYC-WTC_000012806Source: NYC Law Department, mirrored locally

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Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11901.

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