NYC-WTC_000201307

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: 4/7/02 7:00:00 PM [ N.Y.C. Board of Education ATC Group#: 7353 28-11 Queens Plaza North Analysi.s Date: 4/8/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212) 477-8941 Project: P.S. 89M, 201 Wanen St., NY, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) 0.5/1-5 5fl (S/cc) fS/cc) Notes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 0,0045 .7359 -1

02 - 1920.00 0.0450 , 0 None Detected 0 0 0.0045 <22.24 <0,0045 7353-2

03 1920.00 .0.0450 0 None Detected 0 0 0.0045 ., <22.24 <0.0045 73.

04 1920.00 G.0450 0- None Detected 0 0 0.0045 <22.24 <0.0045 7353 -4

05 1920.00 0.0450 C None Detected 0 0 0.0045 <22.24 <0.0045 7353 -5

06 1920.00 0.0450 0 None Detected. 0 0 0.0045 <22.24 <0.0045 7353 -6

. 07 1920.00 0.0450 0, Alone Detected 0 0 0.0045 <22.24 <0.0045 7353 -7

MICHAEL GORYCKI MICHAEL A. CORYCKJ, Ph.D

Analyzed by: Approved b^.:

Disclaimer, The laboratory is not responsible for data reported in structures/cc, which is rteperdent on volume collected by non-lstoratory personnel. This lab is only responsible for data reported in structures/mm’ 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 otner agency of the U.S, Government, This reports ,-elates only tc the samples reported above. Quality control dara (including 95% ■ confidence limits and laboratory and analysis'accuracy andiprecision) is available upon request.

Accredited for LVLAP PLM/TEM #101187-0, MY State ELAP #10879

Paye i of 2

CITY_21MC100_011275596

NYC-WTC_000201307