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

NYC 9/11 Public Portal Document

s Attn: Mr. Bernard Orlan Received: 4/10/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7373 28-11 Queens Plaza North Analysis Date: 4/10/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 Project: New Stuyvesant H. S. . 345 Chambers St., NY , NY

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 f^olume Analyzed Asb Type(s) 0.5fi-S 5fl (S/cc) (S/cc) Notes

17 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 13 73 -17

18 1936.00 0.0450 0 Nene Detected 0 0 0.0044 <22.24 <0.0044 73 73 -IS

19 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 717J -19

20 1920.00 0.0450 0 None Detected 0 0 0.0045 <22,24 <0.0045 73 73 -30

21 1928.00 0.0450 0 None Detected 0 0 0,0044 <22.24 <0.0044 73 71 -31

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D

Approved by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structures/mmL 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 PLWTEM #101187-0, NY State ELAP #10379

Pape 3 Iff 3

CONFIDENTIAL, CITY_21MC100_003459686 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000179485