Asbestos air analysis results, H.S., April 2002

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/11/02 9:00:00 PM N.Y.C. Board of Education ATC Group #: 7384 28-11 Queens Plaza North Analysis Date: 4/11/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212) 477-8941 , Project: New Stuyvesant H. S. , 345 Chambers St., NY , NY Exterior and Interior of Building and Roof

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 Colume Analyzeil Asb Type(s) 0.5iu-5 5jii (S/cc) (S/mm^) (S/cc) Notes

17 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 73S4 -/7

IS 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7SS4 -IS

19 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7384 ~/9

20 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7184 ^20

21 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7384 -21

ROMAN PEYSAKHOV MICHAEL A. OORYCKl, Ph.D.

Analyzed by: Approved by:

Disclaimer: The laborato^ is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. ThlsTab is only responsible for data reported in structures/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 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 limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLM/TEM #101187-0, NY State ELAP #10379

.1 u/3

CONFIDENTIAL, CITY_21MC100_003459693 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000179488