NYC-WTC_000228870

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; 5/12/02 6:00:00 PM N.Y.C. Board of Education .ATC Group#: 7723 28-11 Queens Plaza North Analysis Date; 5/12'02 Long Island City, NY 11101

Fas; (212) 475-4122 Phone: (212)477-8941 Project; U.S. Of Economics And Finance

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area IVon Asbestos 4 Structures Sensitivity Concentration Sample f^olume Analyzed Asb Type(s) asp-s ip (S/ec) (S/mm^) (S/cc) Notes

03 1800,00 0.0450 0 None Delected 0 0 0.0048 <22.24 <0.0048 772J -1

04 ! SOO.OO 0.0450 0 None Detefled 0 0 0.0048 <22,24 <0.0048 7727 -2

OS 1 SOO.OO 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 7723 -.1

06 ! SOO.OO 0.04S0 0 None Detected 0 0 0.0O4S <22.24 <0,0048 7723 .i

07 ,808 00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7723 -S

08 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7723 -6

09 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 2723 -2

MICHAEL A. GORYCKI, Ph.D. MARKPEYSAKHOV Analyzed by: Anproved by:

Disclaimer Ttie tabontoiy s not responsible for data reported in stroctures/cc, whicb is dependent on volume by non-lahoratory personnel. This iabWfiy responsible far data reported in structures.,mm'. This report may not be reproduced, except in lull, wthout written approval by ATC Assodates Inc, This report may not be used to claim product endoraement by NVLAP or any other agency of the U.S. Government. This reports relates only to the samples reported above. Quality control data (includirrg 95% confidence limits and laboraiory and analysis’ accuracy and precision) is available upon request

Accredited for NVLAP PLMfTEM #101187-0, NY State ELAP #10379

Pa^e I nH

CITY_21MC100_002901823

NYC-WTC_000228870