NYC-WTC_000197694

NYC 9/11 Public Portal Document

Attn: .Mr. Bernard Orlan Received; 1/17/02 5:00:00 AM N.Y.C. Board of Education 28-11 Queens Plaza North ATC Group#: 6354 Long Island City, NY 11101 Analysis Date; 1/17/02 Fax: (212)475-4122 Phone: (212)477-8941 Project: PS 89M 201 Warren Street, New York, NY Roof 3rd & 5th Floors. Ground Locations

Asbesto,s 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 i^olume Analyzed Asb Type/sJ ASfiS S/i (S/cc) (S/mm^) (S/cc) Notes 09 1936.00 0.0450 0 CHRYSOTILE 1 0 0.0044 22.24 0.0044 6354 -9

10 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6354 -10

11 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6354 -I 1

12 . 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6354 -12

ROMAN PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: Approved by:-.

Disclaimer The iaboratory is not responsible tor data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsib 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 ter NVLAP PLM/TEM #101187-0, NY State ELAP #10879

CITY_21MC100_003047081

NYC-WTC_000197695