NYC-WTC_000188403

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: 5/11/02 4:30:00 PM N.Y.C. Board of Education ATC Group#: 7716 28-11 Queens Plaza North Analysis Date: 5/11/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: H.S. for Leadership & Public Service 90 Trinity Place, 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 a Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) O.S/t-S 5ft (S/cc) (S/mm^) (S/cc) Notes

04 ’816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7716 -I

05 ’824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7716 -7

06 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7716 -3

07 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7716 -4

08 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7716 -5

09 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 77/6 -6

>0. 18321)0 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 77/6 -7

ROMAN PEYSAKHOV / MICHAEL A. GORYCKJ, Ph.D

Analyzed by: •proved by:

Disclaimer: The laboratoiy a not responsible (or data reported in structures/cc, whicti Is dependent on volume by non-iaboratory personnel This lab 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 repotted above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request

Accredited tor NVLAPPLMn-EM #101187-0, NY Stale ELAP #10879

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