NYC-WTC_000213159

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street. New York, NY 10010 Phone; (212) 353-8280 Fax: (212) 353-8306 Swrc .Attn: Mr. Bernard Orlan Received: 1/25/02 6:00:00 PM N.Y.C. Board of Education 28-11 Queens Plaza North ATC Group #; 6453 Long Island City, NY 11101 Analysis Date: 1/26/02 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) Analytical Asbestos ztrea Non Ashesnis Siruclures Sensitivity Concentration i-'otume Analyzed A sb Type(s) 0.5fi-5 5fl (S/cc) (S/mm-) (S/cc) f'/otes Sample 1 IS4U.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6453 -1

2 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6453 -2

3 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6453 -3

4 1840.00 0.0450 0 . None Detected 0 0 0.0047 <22.24 <0.0047 6453 -4

5 1840.00 0,0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6453 -5

6 1840.00 0.0450. 0 None Detected. 0 0 0.0047 <22.24 <0.0047 6453 -6

7 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6453 -7

8 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 . 6453 -8

MARK PEYSAKHOV MICHAEL A. GORYCKL Ph.D. ,

Analyzed by: Approved 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 is only responsible for data reported in structures/mmT 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 PLWtEM #101187-0, NY State ELAP #10879

CITY_2IMCl00_000461810 NYC-WTC_000213159