NYC-WTC_000193992

NYC 9/11 Public Portal Document

Attn; Mr. Bernard Orlan Received: 4/25/02 9:00:00 PM N.Y.C. Board of Education ATC Group #: 7535 2S-11 Queens Plaza North Analysis Date: 4/25/02 Long Island City, NY II101

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 Non Asbestos # Structures Sensitivity Concentration Sample Coluine Analyzed Asb Type(s) 0.5fi-5 5fi (S/cc) I'S/mm-) (S/cc) Notes

17 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -17

18 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -IS

19 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -/9

20 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -20

21 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -21

MICHAEL A. GORYCKI, Ph.D. MARK PEYSAKHOV

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. This lab raonly 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 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 ELAO #10879

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NYC-WTC_000193994