GCMS analysis sample AD26534, 1,1,2,2-Tetrachloroethane, Dec 2001

Machine-extracted title · confidence 95%

Mass spectrometry analysis of sample AD26534 detected 1,1,2,2-Tetrachloroethane at 2.9 ug/L with 93% fit confidence, Dec 16, 2001.

NYC-WTC_000031801–000031813

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

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\HPCHEM\l\DATA\DEC0701\26534.D Vial: 9 Acq On 8 Dec 2001 1:24 am 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.

7.18 5.97 ng/uL 1371110 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 Propane, 2-ethoxy- 88 C5H120 000625-54-7 9 4 Propage, 2-ethoxy-____________________ 88 C5H120 000625-54-7 9 Abundance 45 Scan 255 (7.178 min): 26534.D (-) m/ z 45.10 100.00%

5000 61 73 1 I ■ ' I ' I I ' 1 1 I ■

m/z-> 36 i11" i"111 T‘, । , । + 88 - | I J I . | . I 1 i | I > I I | I ! I f| > I ! 1 | l . I . | 1 I > I | I i I I | . . I I | 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200 210 207 111" 11 6.80 m/ z 7.00 4 3.00 7.20 7.40 77.08% 7.60

Abundance #917:2,3-Butanediol 45

— . 5000 ' i ■ 1 ■ ‘ । ' ■ ■ ' i ■ ' • • i 1 1 6.80 7.00 7.20 7.40 7.60 29 m/z 61.10 31.07%

m/z-> Abundance Luml 57 75 90 i1 ,n i111111,111111 ‘ i' <" ।11 ■11111111111 r1 ‘ ■ i"111"'11u H r ■ “ i1 ’" i 10 20 30 40 50 60 70 80 90 100110120130140150160170180190 200210 #62961: 2-Butanol, 3-methyl- 45 / 6.80 7.00 7.20 7.40 7.60 5000 m/z 73.05 30.56%

55 73 27 I i 87 r1 ■ r T’TT 11'1 * 1"1 ’ I TUmITT m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 Abundance #62956: Propane, 2-ethoxy- 45 6.80 7.00 7.20 7.40 7.60 rn/z 44.05 16.99% 5000 73

' 59 88 -------- J ---------- ----- TH i" " i 11111111 i ■ ■' ■ i 1111'1'1,11 “"I’1,11" "I ""I m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200 210 6.80 7.00 7.20 7.40 7.60

26534.D NP112701.M Thu Dec 13 11:24:13 2001 Page 2

NYC-WTC_000031810

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NYC-WTC_000031810Source: NYC Law Department, mirrored locally

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Same-box records

GCMS comments for sample AD26532 detecting 1,1,2,2-Tetrachloroethane · Box DEP Box 21

NYC-WTC_000031762

Analysis report dated December 16, 2001, identifying 1,1,2,2-Tetrachloroethane at 0.80 ug/L in sample AD26532.

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