NYC-WTC_000189148

NYC 9/11 Public Portal Document

.Attn: Mr. Bernard Orlan Received: 2/12/02 ■ 9:00:00 PM N.Y.C. Board of Education 28-11 Queens Plaza North ATC Group#: 6658 Long Island City, NY 11101 Analysis Date; 2/13/02 Fii.x; (212)475-4122 Phone; (212) 477-8941 Project: NYC-BOE PS 234M Project#: 14584-1823 292 Greenwich St., 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 Structures Sensitivity Concentration Sample Colome Analyzed Asb Type(s) O.Sfi-3 5/1 (S/cc) (S/mm-) (S/cc) Notes 9 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6658 -9

10 1936.00 0,0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6658 -10

11 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0 0044 6658 -I I

12 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6658 -12

13 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6655 -13

14 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0043 665S -14

15 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6658 -15

MARK 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-laboratory personnel. This lab is only responsible for data reported in structures/mmL 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 for NVLAP PLM/TEM #101187-0, NY Stats ELAP #10879

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NYC-WTC_000189149