GCMS sample analysis results, AE11907, June 4, 2002

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Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11907.

NYC-WTC_000012989–000013013

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\1\DATA\052202\11907.D Vial: 14 Acq On : 23 May 2002 12:25 am 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 6 Chlorine Concentration Rank 7 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.90 ug/L 524056 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qua 1 Chlorine 70 C12 1000245-87-1 7 2 Isothiazole 85 C3H3NS 000288-16-4 3 3 Hydroxylamine, O-pentyl- 103 C5H13NO 005963-74-6 2 4 Difluoromethyl trifluoromethanes... 200 C2HF503S 001885-46-7 2 Abundance Scan 146 (3.937 min): 11907.D (-144) (-) m/z 43.10 100.00% 43 35 51 70 sw/HMAMpo 85 5000

■ ■ i ■ ■ ' * i ■ ■ ■ ■ i ■ • • ■ i ■ • • ‘ i 3.60 3.80 4.00 4.20 39 i n/z—> 0 ■■■i“ n ’1’3 “ i “ • ■ i ■1 “ i i ■ “• i “ i “ “ i “ “ i' “ ‘ i “ “ i ■ • 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 m/z .41.10 96.70% Abundance #23695: Chlorine 35 70

5000 * ■ ।1 * ■ k । * • * * । * * • * । • * < * । 3.60 3.80 4.00 4.20 m/z 35.10 70.33% 74 0 ■" i" ■ • i ■ ■ ■ ■ i ■" ■ i ■ ■ “ i ■"1111" I" -mmmmmmmmmmmmm n/z—> 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 Abundance #34333: Isothiazole 85 T 3.60 3.80 4.00 4.20 5000 58 m/z 51.05 69.60%

•nfe—> 39 45 52 0- mmmmpt Tl | | > I I I | I l > 1 “ “ i ■ • ■ • i"' ‘ i “ ■ ■ i • •' ‘ i1'

25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 A Abundance #4171: Hydroxylamine, O-pentyl- ■ ■ i ‘ ‘ ■ 1 i • 43 3.60 3.80 4.00 4.20 m/z 70.00 66.30% 5000 55 71 38

n/z—> 0 l — TTT 86 103 1 ■' I " '' I' “ ' 11 “ ‘ I ■ ‘ “ I ‘1 ‘' I “ ■ ‘ I ■' “ 11 ‘ 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 3.60 3.80 4.00 4.20

11907.D 052202.M Tue May 28 12:14:21 2002 Page 9

NYC-WTC_000013002

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NYC-WTC_000013002Source: NYC Law Department, mirrored locally

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NYC-WTC_000013524

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