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Asbestos clearance results transmittal, Oct 2002

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FAX transmittal from ATC Associates to NYC DEP containing asbestos clearance analysis results for a WTC site.

NYC-WTC_000107739–000107806
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NYC 9/11 Public Portal Document

10/11/2002 16:56 FAX 212 353 8306 ATC IQ 006/007

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

Fax: (212) 353-3599 Phone: (212) 353-8250 Project: DEP Clean-up ATC Project #: 22906-0002 125 Cedar Street, New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy via NIOS.Ii Method 7402 Non Asbesros 7402 Adjusted Asbe ros PC'M .4s7/estos .4sbesros % of (TEM) Sample Volume Fibers F/cc Type(s) Fibers total F/cc .Notes A-6S-38 3830.00 10 0.001 CHRYSOTtIE 1 9 0.0001 Ce'Jose - 7 Strutxures. Gyosum - 3 SCvciuras 8946 -36

A-6S-39 3820.00 6 0.001 Nana Detected 0 .0 <0.0013 -del ulose -1 Structure. Gypsum - 3 Structures. 596 -J; 31ess -2 Structures

A-6S-40 3810.00 ID 0.002 CHRYSOTILE 2 I? 0.0003 Cetlubse • 3 Shuctures, Gypsum - 2 6946 -40 Structures, Glass -5 Stncures

A-41 3800.00 12 0.001 CHRYSOTILE 1 S 0.0001 Cetulose - 4 Structures, Gypsum 3 8946 -41 Sivaures, Glass - 5 Suu ures

A-42 3790.00 7 0.002 Nene Ceteead 0 0 <0.00 3 Cellulose -3 Structures. Gypsum • 2 8946 .42 - Structures, Glass -2 Structures

A•43 3800.00 .11 0.001 None Detected 0 0 <0.0013 Cellulose - 7 Suuaures. Gypsum .1Structure. 8946 -43 Glass - 3 Structures

A-44 3800.00 15 0.002 CHFYSOTILE 1 6 0.0001 Cellulose • 12 Strucwre Gypsum - 2 8946 -44 Structures. Glass -1 Stn:cr re

A-45 3800.00 16 0 002 Ncne Detected 0 0 <0.0013 Cellutose•- 7 Strictures. Gypsum - 8 8946 -45 Stru res, Glass -1 Structure

A-46 3790.00 18 0.001 None Detected 0 0 <0.0013 Celubse-95 jctures, Gypsum - 8 6946 -46 Structures, Glass -1 Strucaue

A47 3800.00 13 0.001 None Detected 0 0 <0.0013 Cellulose - 10 Structures. Gypsum . 2 8946 -47 Structures, Glass -1 Structure

MARL,'. PEYSAKHOV MICHAEL A. GORYCKI. Ph.D.

Analyzed Approved by: by.

ATC is not responsible far data reported it lib ..It, which is ependent on volume collected r.on-laboratory porsonnai. The above rapert reistat only to lha items tested, This report may not be reproduced, except in futt, without written approval by ATC Assedates Inc Analysis performed by ATC Associates Inc. ;NY ELSE #10879). Forty Grid Openings from eadt of the se 1p!es were examinee for structures greax• tsar 31.'n ie•rg:h and widths betweer. 0.251; and 3j. and having a length4o.wtdtn ra~o greater than 3:1 •

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NYC-WTC 000107786

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