GCMS comments for sample AD26533 detecting 1,1,2,2-Tetrachloroethane

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Analysis report dated December 16, 2001, identifying 1,1,2,2-Tetrachloroethane at 0.72 ug/L in sample AD26533.

NYC-WTC_000031775–000031787

Folder label: “GCMS X 11/6/01 A 12/7/01”

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Data File C:\HPCHEM\l\DATA\DEC0701\26533.D Vial: 7 Acq On 7 Dec 2001 11:35 pm Operator: GALOS Sample gc/ms unknown 11/6 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 2 2,3-Butanediol Concentration Rank 2

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

7.19 5.84 ng/uL 1401360 1,4-Dichlorobenzene-d4 11.88

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2,3-Butanediol 90 C4H10O2 000513-85-9 28 2 2 -Butanol, 3 -methyl - 88 C5H120 000598-75-4 9 3 2-Butanol, 3-methyl- 88 C5H120 000598-75-4 9 4 N-Ethj/1 formamide____________________ 73 C3H7NO 000627-45-2 9 Abundance z Scan 256 (7.187 min): 26533.D 0 m/z 45. 10 100.00% 45

5000 61 73 4 VII TTnuum

m/z-> 0- @H. 10 20 3040 50607080 88 207 TUUu—EITTT’TT 90 100110120130140150160170180190200210 6.80 7.00 7.20 m/z 43 • 00 7.40 74.21% 7.60

Abundance #917:2,3-Butanedlol 45

5000 ■11111 • • i • • 6.80 7.00 7.20 7.40 7.60 29 m/z 73.0.5 33.97% .. 19 1 ml57TT—75T—90gTTIgmgr m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 Abundance #62962. 2-Butanol, 3-methyl- 45 r ; T-n-T-j-n-r i I 1’11114111" 6.80 7.00 7.20 7.40 7.60 5000 m/z 61.10 33.87%

27 : 55 73 npmpmp I I xx x । »x I x । x i »« । x x > 11 x i 11 । x x 11 j x xlf px. TITTIT I’TI x .(x x x i । i ... । t i x . । x . i i ।. » x x । i. x t j (i x mfz~> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 Abundance #62961: 2-Butanol, 3-methyl- 45 6.80 7.00 7.20 7.40 7.60 m/ z 44.0.5 15.92% 5000

27 , 55 73 L.... ......87..................................................... . 1111 H i ‘‘‘I »IX»|»J1111 H < 111 H I > > i i! i < 11 ] i > 1111 H »|. *» > ] M M 11111 (I M I j M i 1111 H | < 111 ■ i ' ■ ■ ■ i ■ ■ ■ ' i ' 1 •T i ■ ■ • ' I ‘ 1 m/z-> W 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 6.80 7.00 7.20 7.40 7.60

26533.D NP112701.M Thu Dec 13 11:23:41 2001 Page 2

NYC-WTC_000031784

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GCMS comments for sample AD26533 detecting 1,1,2,2-Tetrachloroethane · Box DEP Box 21

NYC-WTC_000031788

Analysis report dated December 16, 2001, identifying 1,1,2,2-Tetrachloroethane at 0.72 ug/L in sample AD26533.

1 shared topics · Same agency, volume and box · similarity 0.999