NYC-WTC_000192041

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/1/02 7:00:00 PM N.Y.C. Board of Education ATC Group #: 7296 28-11 Queens Plaza North Analysis Date: 4/2/02 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 GFR Part 763 Final Rule (AHERA) Analytical Asbestos Area /Son Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type/s) 0.5ft-S Sp (S/cc) ' (S/mm^) (S/cc) ISotes

17 1944.00 0.0450 0 None Detected 0 0 .0.0044 <22.24 < 0.0044 7296 -17

1936.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 <0.0044 7296 -IS

19 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7296 -19

20 1952.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 <0.0044 7296 -20

21 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 7296 -21

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

Analyzed by: Approved by:

Disclaimer: The laboratory is not responsible far data reported in structures/cc, which is dependent on volume collected by non-laboralory personnel. ThiJ-tatns only responsible far 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 NV LAP PLM/TEM #101187-0, NY State ELAP #10879

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NYC-WTC_000192043