NYC-WTC_000218052

NYC 9/11 Public Portal Document

ATC Associates i04 East 25 Street, New York, NY lOOlO Phone: (212) 353-8280 Fax: (212) 353-8306

Attn: Mr. Bernard Orlan Received: 2/26/02 8:15:00 PM N.Y.C. Board of Education ATC Group #: 6840 28-11 Queens Plaza North Analysis Date: 2.''27-'02 Long Island City, NY 11101 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 Area /Son Asbestos H Structures Sensitivity Concentration Sample Volume Analyzeil Asb Type(s) 0.5fi-5 5fi (S/cc) (S/miiC) (S/cc) ISotes

01 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 - I

02 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 -2

03 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 -3

04 1944.00 0.04.50 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 -4

05 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 -5

06 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 -6

07 1960.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6840 -7

08 1920.00 0.0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 6840 -8

MARKPEYSAKHOV .MICHAEL A. GORYCK!, Ph.D.

Analyzed by; Approved by:

Disclaimer: The laboratory is not responsible lor data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only resoonsicle for data reported in siructures/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 daia (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited forNVLAP PLMTEM #101187-0, NY State ELAP #10879

CITY_21MC100_000465802 NYC-WTC_0002 18052