NYC-WTC_000189165

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 2/13/02 8:10:00 PM N.Y.C. Board of Education 2S-11 Queens Plaza North ATC Group #; 6(571 Long Island City, NY 11101 Analysis Date: 2/14/02 Fax: (212)475-4122 Phone: (212) 477-8941 Project: NYC-BOE PS 234M Project#: 14584-1823

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analyticai Asbestos /(rea Non -Asbestos Structures Sensitivity Concentration Sample V'uiuine Analyzed Asb Type(s). 0.Sfi-5 5fi (S/cc) (S/mm^) (S/cc) Plates 09 1928.00 0,0450 0 None Detected 0 0 0.0044. <22.24 <0.0044 6671 -9

10 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6671 -10

11 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6671 -1 1

12 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6671 -12

13 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6671 -13

14 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6671 -14

15 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6671 -15

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: Amroved by

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collectetfby non-laboratoiy personnel. This lab is only responsible for data reported in structures/mmT This report may not be reproduced, except in foil, 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

CITY_21MC100_003084027

NYC-WTC_000189166