NYC-WTC_000202282

NYC 9/11 Public Portal Document

ATG Associates 104 East 25 Street, Nev/ York, NY 10010 ' Phene: (212) 353-8280' Pax: (212) 353-8306

Attn: MriBemaidOrlanl Received: 1/25/02 : lG:10:00 PM • N.Y.C. Board of Education 28-11 Queens Plaza North 1 ATC Group #: 6455

Long Island City,- NY .lllGl Analysis Date: 1/26/02 Fax: (212) 475-4122 ( Phone: (2121477-8941

Project; PS 89M 201 Warren Street, New York, NY Playground, Roof ,1st Floor Hallway

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area i\'on 'Asbestos Structures Sensitivity Concentration Sample Coluine Analyzed Asb O.Sfi-5 5fl (S/cc) (S/mnC) (S/cc) ISotes 1 1870.00 0:0450 0 CHRYSOTILE 1 0 010046 22.24 0.0046 6455 - I

2 1989.001 0.G45O 0 1 None Detsefed 0 0 0.0043! <22.24 <0.0043-1 6455 -2

3'7 1938.00 0.0450 0 NoneOetected 0 0 10.0044 <22.24 1 <0.0044 6455 -3

4 1929.50 0.0450 7 o NoneOetected 0 0 0.0044 <22.24 <0.0044 64551-4

5 7. 1895.50 0.0450 0 None Detected 0 0 0.0045' <22.24 1 <0.0045 6455 -5

6 .7 1827.50 0.0450 0 None Detected 0 0 0.0047 ’ <22.241 <0.0047 6455 -6

7 ,7 1963.50 0.0450 0 None Detected 0 77 7 0.0044 ) <22.24 ' 7<0.0044 0 6455 -7

Si ■ i I 1840.00 0,0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6455 -S

MARK PEYSAKHOV MICHAEL A. GQRYCKI, Ph.D.

Analyzed by: ' Approved by: .. 7,-.7n 7 7.-^

Disclaimer: The iaboratory is not responsible for data reported in structures/cc, which is dependenton volume callected by non-laboratory personnel. T'lis lab is only responsible for data reported in structures/mmt 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 ag ency of the U . S. Government. This reports relates only to the samples reported above. Quality control data (including 95% confidence.fimits and laboratory and analysis'accuracy and precision) is available upon request V

' Accredited for N VLAP PLM/TEM #101187-0, NY state ELAF #10879

CITY_21MC100_011276249

NYC-WTC_000202282