NYC-WTC_000214194

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: 5/31/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7920 28-11 Queens Plaza North Analysis Date: 6/1/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: NYC-BOE PS 150M Project#: 14584-0824

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos it Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) 0.5/i-S Sfi (S/cc) (S/mm‘) fS/cc) Notes 01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7920 -1

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7920 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7920 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7920 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7920 -}

06 1928.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 <0.0044 7920 -6

07 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7920 -7

MARKPEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by:

Disdaimer The taboratay s not responsible tor data reported in strucluies/cc, which is dependent on volume collected by non-taboratory personnel ThiKb 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 This 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.

AccredHed for NVLAP PLMTEM #101187-0, NY Stale ELAP #10879

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NYC-WTC_000214194