GCMS analysis results for sample AD27985, Jan 2002

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Laboratory report documenting GCMS analysis of sample AD27985 conducted on January 2, 2002, noting unknown compounds and surrogate recovery.

NYC-WTC_000034457–000034471

Folder label: “GCMS X 11/21/01 A 12/21/01”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\HPCHEM\1\DATA\DEC1901\27985.D Vial: 26 Acq On : 21 Dec 2001 6:45 am Operator: GALOS Sample : gems unknown 11/21 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 6 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1

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

7.82 3.10 ng/uL 987224 1,4-Dichlorobenzene-d4 11.86

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 2 2 - Pent anone. 4 - hydroxy - 4 - me t hyl - 116 C6H12O2 000123-42-2 43 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 42 4 CH2=CHCH2C (0) OCH3_______ __ 100 C5H802 003724-55-8 12 Abundance Scan 325 (7.824 min): 27985.D (-) m/z 43.10 100.00% 43 59 5000

101 7.40 7.60 7.80 8.00 8.20 mz-> _—_____________ ——————— 10 38, 20 30 40 +53 50 I ।60 69 ■ I • » • ♦ I •• • < j 70 80 83 90 — 100 110 m/z 59.10 52.12% Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 i ■ ■ ■ ' i ' ■ 1 i ■ ■ ■ ■ i ■ ' 59 7.40 7.60 7.80 8.00 8.20 m/z 101.05 17.40% 27 101 miz-> 10 . 20 ! i ■ ■ i ■ ■ ■ ■ i ' 30 40 +48+ 50 IPumumrT 60 70 80 83 I 1 1 1 1 .... I"' 90 100 110 Abundance #3245: 2-Pentanone, 4-hydraxy-4-methyl. 43 i ■ ■ • ' i ■ 7.40 7.60 7.80 8.00 8.20 5000 59 m/z 58.1.0 15.84%

31 101 ! _1 ■ ■ ■ i ■ ’ ■ ■ i 1 ■ ' ' i ■ ■ 1 1 I 73 83 1 1 1 1 l' 1 1 , 7... m/z->10 20 30 40 50 60 70 80 90 100 110 Abundance #64275: 2-Pentanone, 4-hydroxy-4-methyl- 43 7.40 7.60 7.80 8.00 8.20 m/z 41.05 6.96% 5000 1 59 !

miz-> 15 I 1 ' ' ' I ' 1 • ' I ' 10 20 I 31 I

30 rT+ TT i ■ * 40 50 i ■ ' ' ■ i ■ ■ ■ 60 70 80 83 101 ’ i ■ • ■ ■ i 1 ■ ■ 1 i ■ ■ ■ ' i ' 90 100 110 T1Pr 7.40 AM T** ' 1 * ' 7.60 7.80 8.00 8.20

27985.D NP112701.M Fri Dec 28 09:31:04 2001 Page 6

NYC-WTC_000034470

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GCMS unknowns analysis results for sample AD27872, Jan 2002 · Box DEP Box 22

NYC-WTC_000034018

Laboratory report documenting GCMS analysis for unknown compounds and surrogate recovery in sample AD27872 conducted on January 2, 2002.

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