NYC-WTC_000223638

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone:(212)353-8280 Fax:(212)353-8306 TC Attn; Mr. Bernard Orlan Received: 3/30/02 4:45:00 PM N.Y.C. Board of Education ATC Group#: 7272 28-11 Queens Plaza North Analysis Date; 3/30/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 'Project: NYC-BOE PS 150M Project#: 14584-0824 334 Greenwich St., New York, NY. 10013

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 V'alume Analyzed Ash Type(s) O.Sft-S Sft (S/cc) (S/mm‘) (S/cc) Notes

01 1920.00 0.0450 0 None Oetected 0 0 0.0045 <22.24 <0.0045 7272 -I

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7272

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7272 -.i

04 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 7’72 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7272 -5

06 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7272 -6

07 1928.00 0.0450 0 None Oetected 0 0 0.0044 <22.24 <0.0044 7272 -7

ROMAN PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: iproved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non4aboratory personnel. This lab is only responsib e lor data reported in strjciures/mmL Tliis report rr ay 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 oiher 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 NVLAH PLM/TEM #101187-0. NY State ELAP #10879

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NYC-WTC_000223638