NYC-WTC_000207972

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: 8/24/02 3:00:00 AM N.Y.C. Board of Education ATC Group#; 8745 28-11 Queens Plaza North Analysis Date; 8/24/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941

Project: NYC-BOE PS 2M Project #: 14584-870 122 Henry Street, New York, 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 Volume Analyzed Asb Type(s) 0.5ft-5 5f, (S/cc) (S/ninC) (S/cc) Notes

1 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8745 -I

1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0,0044

.3 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8745 -5

4 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 574.1 ^4

5 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8145 -5

6 1952.00 0.0450 0 None Delected 0 0 0.0044 <22.24 <0.0044 S745 -6

1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Jfpproved by;

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lablsonly responsible for data reported in stmetures/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 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 PLM/TEM #101187-0, NY State ELAP #10879

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NYC-WTC_000207972