NYC-WTC_000215061

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street. New York, NY 10010 Phone: (212) 353-8280 Fax: (212) 353-8306 (Srtc Attn: Mr. Bernard Orlan Received: 2.'28/02 8:05:00 PM ■N.Y.C. Board of Education ATC Group #: 6871 28-11 Queens Plaza North Analysis Date: 2/28/02 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 Nou Asbestos # Structures Sensitivity Concentration Sample Coluine Analyzed Asb Type(s) O.Sfi-S 5fl (S/cc) (S/mm^j (S/cc) Noles

UI 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6S7I -I

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6871 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6S7I -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6871 -4

05 1920.00 0.0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 6871 -5

06 1920.00 0.0450 0 None Detected 0 . 0 0.0045 <22.24 <0.0045 6871 -6

07 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6871 -7

ROMAN PEYSAKHOV MICHAEL A. GORYCKL Ph.D.

Analyzed by: Aporoved by:

Disclaimer; The laboratory is not responsible for data reported in siructures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in struclures/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 enoorsement 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 tor NVLAP PLM/TEM 4101187-0. NY State SLAP 410879

CITY_21MC100_002352538

NYC-WTC_000215061