NYC-WTC_000215369

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: 2/14/02 9:00:00’PM N.Y.C. Board of Education 28-11 Queens Plaza North ATC Group#: 6686 Long Island City, NY 11101 Analysis Date: 2/15/02 Fax: (212) 475-4122 Phone: (212)477-8941 Project: NYC BOE H.S. For Leadership & Public Services 90 Trinity Place, 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 l^olume Analyzed Asb 0.5f,-5 5/1 (S/cc) (S/mm^) (S/cc) Notes 04 1856.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 6686 -I

05 ' 1856.00 0.0450 0 None Detected 0 0 0,0046 <22.24 <0.0046 6686 -2

06 1864.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 6686 -3

07 1864.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 6686 -4

08 1832.00 0.0450 0 None Defected 0 0 0.0047 <22.24 <0.0047 6686 -5

09 1816.00 0.0450 0 None Detected 0 0 • 0.0047 <22.24 <0.0047 6686 -6

10 1816.00 0.0450 0 None Defected 0 0 0.0047 <22.24 ' <0.0047 6686 -7

11 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6686 -8

MARK PEYSAKHOV MICHAELA. GORYCKl, Ph.D.

Analyzed by: iproved b^:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structures/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 Thia 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 forNVtAP PLIWTEM#1011874), NY State ELAP#10879'

CITY_21MC100_002872264

NYC-WTC_000215369