NYC-WTC_000207766

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone;(212) 353-8280 Fax; (212) 353-8306

■Attn: Mr. Bernard Orlan Received: 9/5/02 8:00:00 AM N.Y.C. Board of Education ATC Group #: 8809 28-11 Queens Plaza North Analysis Date: 9/5/02 ■■■ Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: NYC-BOE PS 42M Project #: 14584-871 71 Hester Street, New York, NY.

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area /Von Asbestos # Structures Sensitivity Concentration Sample k'olunte Analyzed Asb Type(s) O.Sfi-S Sf, (S/cc) (S/mm^) (S/cc) /Votes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8809 -I • a .02- ■ 1920.00 0.0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 //S09 -2

03 1920.00 0.0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 SS09 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S809 -4

05 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 S809 -S

06. 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 SSO9 -6

0'7 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 SHW

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

‘ Analyzed by: Approved by:

Disclaimer: The laboratory is not responsible for data reported in stnjctures/co, which is dependent on volume collected by nor-laboratory personnel. This lab is only responsible lor data,reported in structures/mmT This report may not be reproduced, except in full, without written approval by ATC Associates inc. This report may not be used to claim . ‘ product endorsement by NVLAP or any other agency of the U.S. Government. This reports relates only to the samples reported above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLM/tEM #101187-0, NY State ELAP #10879

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