NYC-WTC_000200698

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: 6/25/02 8:00:00 PM N.Y.C. Board of Education ATC Group #: 8277 28-11 Queens Plaza North Analysis Date: 6/25/02 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 , if Structures Sensitivity Concentration ^ Sample i^olume Analyzed Asb Type(s)i 0.5u-5 (S/cc) (S/mm^) (S/cc) Notes

■ O' ri 1840.007 .0.0450 : 0 : NoneDetected 7- 0 70 0.0047 <22.24- <0.0047 ' . ' 8277 I: , .

' 0277. 7 , . . 7., 7: 0.0450 7 : 0 None Detected ' O ' O ' - 0.0047 / <22.24 <0.0047 ' - 8277,-2S J : :■,/, «rrr/77:, : A: I. 7 r-r7’

7 7 03 77 : :,/ ]840.00 7 0.0450 7/ 0 NoneDetected 7 0 0 /' 0.0047 <22.24 <0.0047< 22 78277^83^72/27 -^ 7 87 2^/2^2 i2. . . r r.'rA..-r/7i

None Detected / Y 'o / O ' ' 0.0047 <22.24 A 0.0047 7 ,7/782771-4 7"

', < O:L NoneDetected/:///; O/ : O 0.0047 /: <22.24 Y <0.0047/(Y

840.00 / Y.0450 ‘ j/: 0 / ' None Detected /-/ 0 //t ' 0 0.0047 <22.24 < <0/0047 / A ^2^227 -6

A7 1/840.00 /7/ 0.0450/: '::/: 0:^ <0.0047 / .<

MARK PEYSAKHOV MICHAEL At GORYCKI, Ph.D. '(

; Analyzed by: ' y' . 'pproved by;

: , Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. Thfelab is only responsible ://.; for data reported in s;ructures/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. Quali^ control data (including 95% . t: I confidence limits and laboratory and analysis'accuracy and precision) is available upon request.

Accredited for NVLAP PLMAEM#1O1187-O, NV State ELAP #10879

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CITY_21MC100_011275044

NYC-WTC_000200698