NYC-WTC_000202276

NYC 9/11 Public Portal Document

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

Attn: Mr. Bernard Orlan Received: 1/23/02 / 6:0G:Q0AM N.Y.C. Board of Education 28-11 Queens Plaza North ATC Group #• 6431 Long Island.City, NY 1 llQl Analysis Date; 1/25/02 Fax: (212) 475-4122 Phone: (212)477-8941 Project: PS 89M 201 Warren Street, New York, NY Playground, Roof 2-5th Floor, 1st Floor Hallway

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 Anatyzeti Asb Type(sj O.Sfi-S (S/cc) (S/mm^) (S/cc) Notes ,01 1840.00 0.0450 0 NoneDetected 0 0 6:0047 <22.24: <0.0047 6431 -1

02 1840.00 0.0450 0 NoneDetected 0 0 0.0047 <22.24 <0.0047 6431 -2

03 1920. GO 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6431-3

04 1856.00 0.0450 / 0 None Detected 0 0 0.0046 <22.24 <0.0046 6431 -4

05T 1848.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 6431 -5

06 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6431 -6

0'7 1840.00 0.0450 0 NoneDetected 0 0 0.0047 <22.24 <0.0047 6431-7

08 / 1840.00 0.0450 0 NoneDetected 0 0 0.0047 <22.24 <0.0047 6431 -8

MICHAEL A. ■GORYCRI. Ph.D. ROMAN PEYSAKHO.V ^ Approved by: _

Disdairaer: The laboratory is not responsible for data reported in structures/co, which is dependent on volume collected by non-labdratory personnel. This lab is only responsible fordala reported in structUre^mm', This report may not be reproduced, exceptinfull.Withoutwritten approval by ATC Associates Inc, This report may rot be used to claim product endorsement by NVLAP or any other agsncy'of the U.S. Government. This reports relates only to the samples reportsd above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision)js available upon request.

Acciediled for NVLAP PLMfTEM #10.4167-0, NY State tLAP «087£

CITY_21MC100_011276228

NYC-WTC_000202276