NYC-WTC_000202503

NYC 9/11 Public Portal Document

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

Attn; Mr. Bernard Orlan Received: 9/5/02 4:00:00 PM N.Y.C. Board of Education ATC Group#; 8810 28-11 Queens Plaza North Analysis Date: 9/6/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 I] 1 Project; New Stuyvesant H. S. 345 Chambers St., NY , NY

1 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos H Structures Sensitivity Concentration Sample f^olume Aitaly7,ett Asb Type(s) (S/cc) (S/inm^) (S/cc) Noles

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S8I0 ■/

02’ . 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 SSI 9 -2

03 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 S810 -3

04 1920.00 0.0450 0 Nrune Detected 0 0 0.0045 <22.24 <0.0045 S8I0 -4

05 , ■ 0.0045 <22.24 <0.0045 1912.00 0.0450 0 None Detected 0 0 SSJO -

06 1912.00 0.0450 0 None Detected 0 0 0.004.5 <22.24 <0.0045 'SSIO -6

07 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 .SSIIJ

MARK PEYSAKHOV MICHAEL A. GORYCK.I, Ph.D.

^Approved by:

Disclaimer: The laboratory is not resporsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory perscnnel. This lab is only responsible for data reported in structures/mmT This report nay not be reproduced, except in full, without written approval by ATC Associates Inc. This reptpl 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. Duality control data (including S5% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

.Accredited tor NVLAP PLM/TEM#1011B7-0. NY State ELAP#10879

Pape I i>/3

CITY_21MC100_011276807

NYC-WTC_000202503