NYC-WTC_000212566

NYC 9/11 Public Portal Document

ATC Associates ' 04 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax; (212) 353-8306

Attn: Mr. Bernard Or:an Received: 5/16/02 9:00:00 PM N.Y.C. Board of Education ATC Group #: 7770 28-11 Queens Plaza North Analysis Date: 5/16/02 Long Island City, NY IIIOI Fax: (212) 475-4122 Phone: (212) 477-8941 Project: NYC-BOE PS 234M Project#: 14584-1823

Asbestos fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) /iiialyticttl Asbestos Arerr />foii Asbestos Strucliires Sensitivity Concentration Sample I'oliime Aiiolyzeti Asb Type(s) 0.5/i-S 5fl (S/cc) (S/mm^) fS/cc) Notes

Cl 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7 77(1 -I

C'2 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 77711

(13 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7774 -]

04 1928.00 0.04-50 0 None Detected 0 0 0.0044 <22.24 <0.0044 ■4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 ■77'J -3

)6 1920.00 0 0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 7770 -6

07 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 77:0 -7

MARK PEYSAKHOM MICHAEL A. GORYCKl, Ph.D.

Analyzed by Improved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboralory personnel. This l3Be only -esponsible tar data reported in stnjctures/rrm’. 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.

Accredited tat NVLAP PLMnEM #101187-0, NY State ELAP #10879

Pitfie I i>f2

CITY_21MC100_002867182

NYC-WTC_000212566