DEP water sample drip rate log, June 2002

NYC 9/11 Public Portal Document Library bearen compound Report

Data File C:\MSDCHEM\1\DATA\060602\603LB.D Vial: 3 Acq On 6 Jun 2002 12:57 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 11 Methylene Chloride Concentration Rank 12 R.T. EstConc Area Relative to ISTD R.T. 4.47 0.37 ug/L 288179 1 ,4-dichlorobenzene-d4 9.89 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 39 2 Methylene Chloride 84 CH2C12 000075-09-2 9 3 Methylene Chloride 84 CH2C12 000075-08-2 9 4 1-Propyne, 1-(methylthio)- 86 C4H6S 022174/51-2 7 Abundance Scan 237 (4.472 min): 603LB.D (-235) (-) m/z 86.00 100.00% 49 83 "...

5000 82 41

niz-> 01 T 5 i ■ ■" i ■ •" i" " i ■ ■" i 37.44 m 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ■ i ■" ■ i ■" m/z 4.20 4.40 49.10 4.60 4.80 88.89% Abundance #111040: Methylene Chloride 40 84

5000 4.20 4.40 4.60 4.80 35 m/z 82.00 34.72% 14 2528 32 ,0841 88 152 70 0! TTEBmm———tmpmoongort 1111111111111111111111111 > 111 It 111111 r miz-> 5 ■■ i■ “ 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111041: Methylene Chloride 40 84 4.20 4.40 4.60 4.80 5000 m/z 41.00 27.60%

m/z-> 2629 46 41| ,52 59 65 01 " i""i ■" ‘I" " I" " i'i' 111 ■ > 11 > 11 >11111111 11 5 73 77 • i ■ ■ ■ ■ i ■ • • ■ । ■ * * 111 > ।. i * * 11 > i 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 88 ITp MMMMowoiup Abundance #12327: Methylene Chloride 40 4.20 4.40 4.60 4.80 84 m/z 84.00 24.83% 5000

88 14 18 24 2831 353841 11 TIUmPH .i52 70 0- 11" ।" i" " ।" "i ■" ■ ।" i ■11 HP m/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.20 4.40 4.60 4.80

603LB.D 060302.M Mon Jun 10 10:20:46 2002 Page 14

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