NYC-WTC_000191016

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax; (212) 353-8306

Attn: Mr. Bernard Orlan Received: 5/6/07 8:00:00 PM N.Y.C. Board of Education ATC Group #: 7654 28-11 Queens Plaza North Analysis Date: 5/6/02 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 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample l^olume Analyzed Asb Type(s) 0.Sfi~5 3fl (S/cc) fS/mm^) (S/cc) Notes

1 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7654 -1

2 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7654 -2

3 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7654 -5

4 1920.00 0.0450 None Detected 0 0 0.0045 <22,24 <0.0045 0 7654 -I

5 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 :7654 -J

6 1928.00 0.0450 0 None Detected 0 0 0.0044 <22,24 < 0.0044 7654 -6

7 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7654 -7

ROMAN peysa: [OV MICHAEL A. GORYCKI, Ph.D.

Analyzed by:

Disclaimer The laboratory is not responsible for data reported in structores/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in struck! res/mmT This report may not be reproduced, except in full, without written approval by ATC Associates Inc. This report may not be used toolaim . 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 PLMfTEM #101187-0, NY State ELAP #10879

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NYC-WTC_000191016