NYC-WTC_000204817

NYC 9/11 Public Portal Document

ATC Associates f 104 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax:(212)353-8306

Attn: Mr. Bernard Orlan Received; 4/24/02 8-.3O-.OO PM N.Y.C. Board of Education ATC Group #: 7522 28-1.1 Queens Plaza North Analysis Date: 4/24/02 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 /Ire a Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) 0.5fl-5 5fi (S/cc) (S/min^) (S/cc) Noles

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7322 -/

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

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7322 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 732.’ -4

05 1920.00 0.0450 0 NoneOetected 0 0 0.0045 <22.24 <0.0045 732 5

06 1920.00 0.0450 0 NoneOetected 0 0 0.0045 <22.24 <0.0045 7522 -6

07 1912.00 0.0450 0 NoneOetected 0 0 0.0045 <22.24 <0.0045

ROMAN PEYSAMOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: proved by •V

Disclaimer: The laooratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible hr data reported in structures/mrnT 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 liniits and laborator/ and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLM/TEM #101187-0, NY State ELAP #10879

Pu'^e I Ilf I

CITY_21MC100_003061983

NYC-WTC_000204817