NYC-WTC_000207621

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 Orlari ; Received: 6/23/02 2:00:00 PM N. Y.C. Board of Education ATC Group #: 8240 28-11 Queens Plaza North Analysis Date: 6/23/02 Long Island-City,' NY 11101 Fa.x: (212) 475-4122^ ' Phone: ' (212)477-8941 Project: New Stuyvesant H. S. , 345 Chambers St., NY, NY '

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos ' ■’ .- / ■ /Irea Non Asbestos . # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) O^Sfi-S 5fl (S/cc) (S/mm^) (S/cc) Notes

' . 1920.00 0.0450 ' o'. NoneDetected ,0 .0 0.0045 . <22.24 <0.0045 8240 -I ■ ■■■ ■

-- /. 1920.00 0.0450 -, 0. Notie Defected .0 . 0 0.0045 <22.24 < 0.0045 . 8240 -2 ■’ " ....

3 ■ ■ 1920.00 .0.0450 >0 NoneDetected 0 6 0.0045 <22.24 <0.0045 8240^ -3

' 1920.00 0.0450 ■ O' NoneDetected O ’ 0 0(6045 <22.24 -<0.0045 8240 -4-:.:. '

■5 ■ 1920.00 .0.0450 0 NoneDetected 0 ' 0 O..Q045 <22.24 <0.0045. • 8240 -S

6 1920.00 0.0450 '. 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 82'40 -6

3 _ \ . 1920.00 0.0450 6 NoneDetected 0 0 0.0045 <22.24 <0.0045 8240 -7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by:- Approved by:

Disclaimer The laboratory Is not responsible for data reported in structures/cc, which' 'b dependent on volume collected by non-laboratory personnel. This lab i^’Oiily 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. This reports relates only to the samples repotted above. Quality control data {including 95% ■ confidence limits and laboratory and analysis' accuracy and precision) Is available upon request

Accredited (or NVLAP PLMfTEM #101187-0, NY Stale ELAP #10879

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NYC-WTC_000207621