NYC-WTC_000191913

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Otlan Received: 6/22/02 4:00:00 PM N.Y.C. Board of Education ATC Group#; 8226 28-11 Queens Plaza North Analysis Date: 6/23/02 Long Island City, NY 11101 Fax; (212)475-4122 Phone: (212) 477-8941 Project: New Stuyvesant H. S. , 345 Chambers St,, NY , NY Extenor 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 i-'oluine Analyzed Asb Type(s) ' O.Sfi-S , Sfi (S/cc) (S/mnti) (S/ccj Notes

17 1920.00 0.0450 0 None Detected 0. 0 0.0045 <22.24 <0.0045 8226 -17

18 1920.00 0,0450 0 None Detected ■0 0 0.0045 <22.24 <0.0045 3226 -IS

19 192S.00 0.0450 0 None Detected 0.. 0 0.0044 <22.24 <0.0044 8226 -19

20 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S226 -20

21 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8226 -21

ROMAN PEYSAK: MICHAEL A. GORYCKl, 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. Tl IS Only responsible far 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 PLMHEM #101187-0, NY State ELAP #10879

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CITY_21MC100_003091938

NYC-WTC_000191915