NYC-WTC_000214908

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: 6/26/02 10:00:00 PM N.Y.C. Board of Education ATC Group#: 8300 28-11 Queens Plaza North Analysis Date: 6/27/02 Long Island City, NY 11101

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 l^olume Analyzed Asb Type(s) 0.5/J-5 5/i (S/cc) (S/ntm^) (S/cc) Notes

01 1920.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 8300 -I

02 1920.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 8300 -2

03 1920.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 < 0.0045 8300 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8300 -I

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8300 -5

06 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8300 -6

07 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8300 -7

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: iproved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. ThisWIs only responsible for data reported in structures/mmL 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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