GCMS analysis results, sample AE12476, June 2002

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Laboratory report showing GCMS analysis results for sample AE12476 including surrogate recovery data on June 10, 2002.

NYC-WTC_000014406–000014432

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\12476.D Vial: 18 Acq On : 29 May 2002 11:56 pm Operator: McLean Sample : gc/ms scan 5/28 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 8 Methylene Chloride Concentration Rank 13 R.T. EstConc Area Relative to ISTD R.T. 4.27 0.57 ug/L 416765 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual y

1 Methylene Chloride 84 CH2C12 000075-09-2 42 2 Methylene Chloride 84 CH2C12 000075-09-236 3 Methylene Chloride 84 CH2C12 000075-09-2 9 4 Acetic acid, dichloro- 128 C2H2C1202 000079-43-6 9 Abundance Scan 203 (4.272 min): 12476.D (-201) (-) ' m/z 49.10 100.00% 49

5000 t 88 42 98 82 4.00 4.20 4.40 4.60 0 TTpom)—mmmmm“mmmTTp mmmhpt TH 11 r 11“"I' ■' m/z 48.00 74.56% m/z—> Abundance 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 #111040: Methylene Chloride 49 84 "MMMAMut.., 5000 1 ■ ■ 1 i ■ ■ ' ■ i ■ ■ ■ 1 i 1 1 1 ' i 1 1 ■ ■ 4.00 4.20 4.40 4.60

"PayAN., 35 m/z 88.00 33.72% 14 28 TTT I InJ111 n. 4470 OtTmHTTTHT TICCTMTEat T ' 1'1“ “ 1" ■' l"“ 1“' miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Abundance #111039: Methylene Chloride 49 84 ' 4.00 4.20 4.40 4.60 5000 m/z 50.10 31.69%

28 35 43 , 57 71 77 . 89 rn | l tTTf l . > I | ; I > 0: Tmg Tmmnpt 1g nz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Abundance #111041: Methylene Chloride ‘ ‘ ‘ 1 1 ‘ ‘ ‘ I ‘ ‘ ' I ‘ ‘ ‘ ‘ I ' ' ' ‘ 49 4.00 4.20 4.40 4.60 m/z 51.10 26.89% 84 5000

29 41 59 65 73 78 0- ..j..,.।....]■iii111.11111l|inij111111II11 111 n | < i <■J > > 17) > '■*11■l■11‘*11■> 977 ■ ■ t • ■ ■ ■ i ■ ■ ' ■ i ‘ 1 ‘ • i ' • ■n/z~> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 4.00 4.20 4.40 4.60

12476.D 052202.M Mon Jun 03 11:34:02 2002 Page 11

NYC-WTC_000014421

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GCMS analysis results, sample AE12477, June 2002 · Box DEP Box 15

NYC-WTC_000014433

Laboratory report showing GCMS analysis results for sample AE12477 including surrogate recovery data on June 10, 2002.

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