NYC-WTC_000192468

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/25/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7535 28-11 Queens Plaza North Analysis Date: 4/25/02 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^oluine Analyzed Asb Typefs) O.Sfi-S 5fi fS/cc) (S/mm^) (S/cc) Notes

17 1936.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 <0.0044 7535 -17

18 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -IS

19 1944.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 <0.0044 7535 -19

20 1952.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 <0.0044 7535 -20

21 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -21

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: iproved by

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This laoTSonly responsible for data reported in stnjctures/mm' 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 reporte 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 forNVLAP PLMZTEM #101187-0. NY State ELAP #10879

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