NYC-WTC_000189191

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. BernardOrlan Received; 3/6/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 6954 28-11 Queens Plaza North Analysis Date: 3/7/02 Long Island City, NY 1110) Fax: (212) 475-4122 Phone: .(212)477-8941

Project: NYC-BOE PS 234M Project#: 14584-1823 292 Greenwich St., New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) 0.5fi-5 (S/cc) (S/mm^) (S/cc) Notes

01 1920.00 0.0450 0 hone Detected 0 0 0.0045 <22.24 <0.0045 6954 -1

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 0954 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6954 -3

04 1920.00 0.04,50 0 None Detected 0 0 0.0045 <22.24 <0.0045 6954 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 0954 -5

06 1920.00 ■ 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 0954 -6

07 1920.00 0.0450 0 None Detected ' 0 0 0.0045 <22.24 <0.0045 0954 -7

08 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6954 -S

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reporter; 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

CITY_21MC100_003084447

NYC-WTC_000189191