NYC-WTC_000191102

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: 5/10/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7700 28-11 Queens Plaza North Analysis Date: 5/11/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: New Stuyvesant H. S. , 345 Chambers St., NY , NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area /Son Asbestos # Structures Sensitivity Concentration Sample l^olume Analyzeil Asb Type(s) 0.Sp-S Sp (S/cc) (S/mm’) (S/cc) Notes

1 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7700

2 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0,0045 7700 ^2

3 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7700 -3

4 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7700 -4

5 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7700 -5

6 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7700 -6

7 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7700 -7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume for data reported in stnjctures/mnL 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 N VLAP 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 PtM/TEM #101187-0. NY State ELAP #10379

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