GCMS blank analysis results, DEP Box 25, May 1 2002

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Ten-page laboratory report showing GCMS blank analysis results for volatile organic compounds with values below detection limits.

NYC-WTC_000043036–000043045

Folder label: “GCMS X 4/18/02 A 5/1/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C: \HPCHEM\1\DATA\MAY0102 \LB. D Vial: 7 Acq On 1 May 2002 1:33 pm Operator: Sample gc/ms scan 4/18 Inst : 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0501.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 3 Cyclopentasiloxane, decamethyl Concentration Rank 3

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

14.81 0.68 ug/1 54796 Naphthalene-d8 15.84

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Cyclopentasiloxane, decamethyl- 370 C10H3005Si5 000541-02-6 72 2 3,4-Dihydroxybenzyl alcohol,tris(tr 356 C16H3203Si3 068595-79-9 47 3 Phenethylamine, N-methyl-.beta. , 3,4 399 C18H37NO3Si3 010538-85-9 40 4 Benzeneethanamine, N-[(pentafluorop 563 C24H34F5NO3Si3 055429-13-5 38 Abundance Scan 1066 (14.806 min): LB.D (-) m/z 73.05 100.00% 73

5000 267 355 -----

45 14.40 14.60 14.80 15.00 15.20 b 125 154 193 251 n 323339 I. | i I*gCand)ns " ।'' ■' । । ।1 T' " ‘ I'''''' I'‘11 “ 1111 " ' 1'1 " l1 ‘' TITMOHm m/z 267.05 32.44% miz-> 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #51266: Cyclopentasiloxane, decamethyl- 73

355 267 ........ / 5000 14.40 14.60 14.80 15.00 15.20 m/z 355.10 29.39% ■ ■ । "11 ■ । ■ ■ ■ ■ । -1 ■ - * ■ । - - • ■ । 191207 11**’*/ 2511 TIWTTTTTTTTTT 323339 11'111111' 11 m/z-> 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #49868:3,4-Dihydroxybenzyl alcohol,tris(trimethylsilyl)- 73 i 1 1 ' 1 i ■ ■ ■ ■ ■ ■ । ■ ■ ■ ■ । ■

14.40 14.60 14.80 15.00 15.20 267 m/z 356.10 11.31% 5000 179 356 45 147

miz-> 40 ---H2927-—H 312 341 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #74239: Phenethylamine, N-methyl-.beta.,3,4-tris(trimethyls 73 14.40 14.60 14.80 15.00 15.20 m/z 74.10 8.27%

5000 355 44

rnfz—> —40 +—60,88 130147 1 267 294 193 . . n.... । ' ■ ■ ■ ।1 n 111 “ 111 ■1111111111111 *1 ■11 ■111111111111111111111 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 14.40 14.60 14.80 15.00 15.20

LB.D GCMS0501.M Thu May 02 12:04:58 2002 Page 3

NYC-WTC_000043044

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NYC-WTC_000043044Source: NYC Law Department, mirrored locally

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GCMS blank analysis report, May 6, 2002 · Box DEP Box 25

NYC-WTC_000043646

Laboratory report documenting a GC/MS blank run to check for contamination in the analytical system on May 6, 2002.

1 shared topics · Same agency, volume and box · similarity 0.997