NYC-WTC_000221777

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: 4/18/02 9:00:00 PM N.Y.C. Board of Education ATC Group #: 7455 28-11 Queens Plaza Nonh Analysis Date: 4/18/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941 Project: PS 89M 201 Warren 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) O.Su-S Sfi (S/cc) (S/cc) Notes

01 1840.00 0.0450 0 None Delected 0 0 0.0047 <22.24 <0.0047 7455 -I

02 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7455 -2

03 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7455 -3

04 1S40.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7455 -4

05 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7455 -5

06 1840.00 0.0450 0 None Delected 0 0 0.0047 <22.24 <0.0047 7455 -6

07 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7455 -7

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: ^^^^A^proved by: Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. T'dis'^^^^^^sponsibte

tor caia reported in structures/mm-. This report may not be reproduced, except in full, without written approval by ATC Associates Inc. This report may nol 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.

.iccreailed lor N7LAP °LM/TEM 4101187-0. NY State ELAP #10879

Pa^e / /)/ 2

CITY_21MC1OO_OO2888673

NYC-WTC_000221777