Fiberglass clearance results fax, 125 Liberty Street, Oct 2002

Machine-extracted title · confidence 95%

Transmittal of fiberglass air sample analysis results for 125 Liberty Street confirming acceptable levels.

NYC-WTC_000107450–000107504

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NYC 9/11 Public Portal Document

10/11/2002 16:32 FAX 212 353 8306 ATC l j003

Attn: Benjamin Sallemi Received: 10!9/02 8:00:00 AM ATC Associates Inc. ATC Group #: 8946 104 Bast 25th Street Analysis Date: 10/11/02 Now York NY 10010

Fax (212)353.3599 Phone: (212) 353-9280

Project: DEP Clean-up ATC Project #: 22906-0002 125 Cedar Street, New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CF.R Part 763 Final Rule (A RA►) Analytical Asbestos Area .Non ,lsbrstos #Structures Sensitivity Cnncentratiun

Sample Volume Analyzed Asb Type(s) su- $a (S/cc) (S/,mm' (Site) Notes

A -9s-08 3390.00 0.1236 27 • None Detected 0 0 0,0008 <8.09 <0.0008 Celluiose - 5 Svuctures. Gypsum • 22 8946 -6 Structures

A-9S-09 3880.00 0 1236 19 CHRYSOTILE 1 0 0.0008 8.09 0.0008 Gypsum -19 Structure 8946 -9

A-9S-10 3870.00 0.1236 11 CHRYSOTtLE t 0.0008 16.18 0,001( Cellulose - 1 S,ructures, Glass -1C Structure 8946 -10

A8N-11 3870.00 0.1236 49 None Detected 0 0 00008 -809 <0.0008 Cailuicse.4Stn:otures,Oypsurn-45 5946 -11 San:ctures ------ A-BN- l2 3860,00 0.1236 25 CHRYSOTILE 1 1 0,0006 16 18 0.0016 Catlullose - 2 Structures, Gypsum - 23 8946 -12 Sductures

A-8N-13 3850.00 0.1236 21 CHRYSCTILE 0 1 0.0008 8.09 0.0008 Cellulose • 5 Structures, Gypsum - 16 8946 -.d Sauctures

A•8N-'.4 3840.00 0.1236 25 None Detected 0 4) 0.0008 <8 09 <0.0008 Cellulose - 3 Structures, Gypsum 21 8946 -!• S re, Gies -1 Structures

A-8N-t5 3830.00 0.1236 28 None Delecred 0 ') -5.0008 < 8.09 <0,0008 Cellulose • 2 Structures, Gypsum - 25 8946 -I3 Structures, Glass -I Structures

A-SS-16 3850-00 0.1236 9 CHRYSCTILE 0 1 0.0008 8.09 0.0006 Gypsum - 9 SLjmres, Glass -1 Structure .16

5946

GORYCKI,

Ph.D.

MICHAEL

PEYSAKHOV

MARK

Analyzed by:

/ App oved by:

0isdzimer The eboratory Is not responsible for data rsperted in sUUctture5/cc, which Is dependenton volume odected by non-labo -etory personnel. This tab is only responsib e for data reported in strueairee/mm'. This capon may not be reproduced. extant in full, without written approval by ATC AS3octatas Inc. This report may not be used to Gaim product endorsement by NVLAP or any other agency of 'he U.S. Government This repots relates only to the samples repotted axe. Quattty control dam (including 95% confidence limits and laboratory and analysis` accuracy and precision) is available upon request

Accredited for NVIAP PLLM(TEM #101187-0, NY State ELAP #10979

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000107466 NYC-WTC

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