NYC-WTC_000215836

NYC 9/11 Public Portal Document

.Attn: Mr. Bernard Orlan Received; .3/8/02 9:00:00 PM N.Y.C. Board of Education ATC Group #: 6991 28-11 Queens Plaza North Analysis Date: 3/9/02 Long Island City, NY 11101 • Fax: (212) 475-4122 Phone: (212) 477-8941 Pro,j.ect: 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 (AHFRA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample i'oltime Analyzetl Asb Type(s) 0.5fi-5 5fi (S/cc) (S/mm-) (S/cc) Notes

19 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6991 -19.

20 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6991 -20

21 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6991 -21

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by:

Disclaimer: The laboratory is not responsible (or data reported in structures/cc. which is dependent on volume collected by non-laboraiory personnel. This lab is only responsible (or data reported in structures/mm’. This report may not be reproduced, except in (ull, without written approval by ATC Associates Inc, This report may not be used to claim product endorsement by NVLAP or any other agency o( the U.S. Government. This reports relates only to the samples reported above Quality control data (including 96% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited (or NVLAP FLMCEM #101187-0, NY State ELAP #10879

CITY_21MC100_0 02876091

NYC-WTC_000215838