NYC-WTC_000231713

NYC 9/11 Public Portal Document @015 02/11/02 18:19 FAX 1212 588 0930

ATC Associates 104 East 25 Street New York, NY 10010 Phone: (212) 353-8250 Fax: (212) 353-8306

Attn: Mr. Bernard Orlan Received: 2/11/02 2:15:00 PM N.Y C. Board of Education 28-11 Queens Plaza North aTC Group 6637 Long Island City, NY 1 i 101 Analysis Date: 2/11/02 Fax: (212) 475-4122 Phone: (212)477-8941 Project: H.S. Of Economics And Finance, 9th Floor 100 Trinity Place, New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFRPart 763 Final Rule (AHERA) Aiialyiieal Asieiia!. Area .Vpri Ashestas ilmeriires Sensitivity Ceneentrniion l^olttme Aiialyr^d Alb ^ypafi) 0.1,,-i p> (S/ee) (S/mm’j fS/cc) Neres 04 ISOS.OO 0.0450 0 More Cstsslsd 0 0 0.0047 <22.24 <0.0047 6637 -1

OS IS05 00 0.0450 0 None Ostscled 0 0 0.0047 <22.24 <0.0047 6657 .2

06 1814.50 0.0450 0 None Detsetsd 0 0 0.0047 <22.24 <0,0047 6637 -3

07 181450 0.0450 0 Xare Oeiected 0 0 0.0047 <22.24 < 0 0047 6637-4

05 1824.00 0.0450 0 None Ooiesied 0 0 0.0047 < 22.24 <0.0047 6657 ■:

09 1S24 00 0 0450 0 None Oetetdsd 0 0 0.0047 <22.24 <0.0047 6637-6

10 1824.00 0.0450 0 .None detected 0 0 0 0047 <22.24 <0.0047 6637 -7

ROMAN PEYSj^OV MICHAEL A. OORYCKJ, Ph.D.

Analysed by;----- Approved oyi _

Dtsclsimer: The istoraloty Is nc’.rasponsible (or dale resorted in sljuclurss/c;, which :s depander.tonvo'urtie collected bv non-laboroloiy personnal. This Lib is cnly respcntiole tor date reported m strjctpieslmrr.o Th.s report tiay not be reproduced, escesi m full, without vrritien approval by ATC Associates Inc. This repert may net be used to claim product eoitorsemohi by NULA? ar any othdr agencr of the U.S. Govammenl This reports rclpics only to the samples reported above. Oupliiy control dale (including 95% conlaerice liiria and laboratory and analysis’ accuracy and precildn) is av3.,ab,'e upon recivesi

Atoediied for NVIAP PL.WTEM #10l 1674), NV Slate ELAP #10879

CITY_21MC100_013073791

NYC-WTC_000231713