NYC-WTC_000215045

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: 2/21/02 5:25:00 PM N.Y.C. Board of Education ATC Group #: 6776 28-11 Queens Plaza North Analysis Date; 2/22/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 Project; NYC-BOE PS 150M Project#; 14584-0824 334 Greenwich St., New York, NY. 10013

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sam/jle l^olutne Analyzed Asb Type(s) 0.5H-S 5fl (S/cc) (S/tnm-) (S/cc) Notes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6776 -1

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6776 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6776 -3

04 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6776 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6776 -5

06 1920.00 0.0450 0 . None Detected 0 0 0.0045 <22.24 < 0.0045 6776 -6

07 1904.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6776 -7

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by

‘ Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboralory personnel. This lab is only responsible ; for data reported in strjciures/mmT 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 tor NVLAP PLMfTEM #101187-0, NY Slate ELAP #10879

CITY_21MC100_002853833

NYC-WTC_000215045