NYC-WTC_000193992

NYC 9/11 Public Portal Document

Altn: Mr. Bernard Orlan Received: 4'25/02 9:00:00 PM N.Y.C. Board of Education ATC Group #: 7535 2S-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 Coliime Analyzetl Asb Type(s) 0.5/1-5 5/1 (S/cc) (S/mmf (S/cc) ,\otes

8 1944.00 0,0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -8

9 1944,00 0,0450 0 None Detected 0 0 0.0044 <22.24, <0.0044 75 35 -9

10 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -10

11 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -/I

12 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -13

13 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7535 -13

14 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -14

15 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 0.0044 7535 -15

16 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7535 -16

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by

Disclaimer: The laboratory is not responsible for data reported in striictures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsibln for data repotted 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 endo.hsement 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 orecision) is available upon request.

Accredited for NVLAP PLM/TEM #101187-0, NY State ELA? #10879

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NYC-WTC_000193993