GCMS blank analysis results, April 23, 2002

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Laboratory report documenting a blank sample analysis for GCMS testing of volatile organic compounds in April 2002.

NYC-WTC_000048986–000048995

Folder label: “GCMS X 4/12/02 A 4/23/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\HPCHEM\1\DATA\APR2 202\LBA.D Vial: 16 Acq On : 22 Apr 2002 11:50 pm Operator: Sample : gc/ms scan 4/12 Inst : 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\GCMS0412.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 2 Cyclopentasiloxane, decamethyl Concentration Rank 2

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

14.81 0.60 ug/1 99878 Naphthalene-d8 15.84

Hit# of 5 Ten tive ID MW MolForm CAS# Qual 1 Cyclopentasiloxane, decamethyl- 370 C10H3005Si5 000541-02-6(9 2 3,4-Dihydroxybenzyl alcohol,tris(tr 356 C16H3203Si3 068595-79-9 70 3 Silane, [[4-/1,2-bisE(trimethylsily 458 C20H42O4Si4 056114-62-6 43 4 3,4-Dihydroxymandelic acid, ethyl e 428 C19H3605Si3 000000-00-0 38 Abundance 7 Scan 1064 (14,815 min): LBA.D (-) 1 m/z 73.00 100.00% 73

355 267 5000

I ' r ‘ 1 1 1 'i 1 ■ ■ ■ i 1 ' 45 14.40 14.60 14.80 15.00 15.20 .1 । 1 ■ i 1 125.154.193.23, + 323 [ m/z 355.05 58.62% miz-> 50 100 150 200 250 300 350 400 450 Abundance #51266: Cyclopentasiloxane, decamethyl- 73

355 267 5000 14.40 14.60 14.80 15.00 15.20 m/z 267.00 51.37% 1 111 ................................ 207 | 323 |.............. • 250 300 350' 400 450 miz-> 50 100 150 200 Abundance #49868:3,4-Dihydroxybenzyl alcohol,tris(trimethylsily!)- 73

14.40 14.60 14.80 15.00 15.20 267 m/z 356.0,5 22.11% 5000 179 356

mfe-> 45 Tk 1’4 50 —+ 100 150 147 ,1,299 237 , 200 250 312 1 • i * ' • ' i 1 * ■ ' i * * 1 * i ‘ * 300 350 400 450 Abundance #74512: Silane, [4-[1,2-bis[(trimethylsilyl)oxy]ethyl]-1,2 11 1+*** 355 (1 • 1 • r r 1 '> ' i 14.40 14.60 14.80 15.00 15.20 m/z 268.00 14.64% 5000 73

147

m/z—> 1 ■ i 50 ' ■ • • 100 i ■ ■ ■ ‘ 150 i ■ 179 207 200 251 281 250 300 4 350 • 400 i ‘ 443 i 450 ■ ■ i ‘ ‘ ' i ■ 1 1 ■ i ‘ ' i ■ • ■ ■ i ' 1 14.40 14.60 14.80 15.00 15.20

LBA.D GCMS0412.M Tue Apr 23 14:25:35 2002 Page 2

NYC-WTC_000048993

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NYC-WTC_000048993Source: NYC Law Department, mirrored locally

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GCMS blank results for volatile organics, Sample AE05750, April 2002 · Box DEP Box 27

NYC-WTC_000048469

Laboratory report showing blank analysis results for volatile organic compounds in sample AE05750 from April 2002.

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