NYC-WTC_000214291

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: 6/18/02 9:00:00 PM N. Y.C. Board of Education ATC Group#: 8168 28-11 Queens Plaza North Analysis Date: 6/19/02 Long Island City, NY lllOI Fax: (212)475-4122 Phone: (212)477-8941 Project: NYC-BOE PS 150M Project#: 14584-0824

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 Volume Analyzed Asb Type(s) O.5p-S Sp (S/cc) (S/mm-') (S/ccJ Notes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8/68 -I

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 8/68 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8168 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8168 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8/68 -6

06 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 SI68 -6

07 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 8/68 -7

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 labTfoniy responsible for data reported in structures/mnP. 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 reales only to the samples repotted above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request

Aaredited for NVLAP PLM/TEM #101187-0, NY State ELAP #10879

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NYC-WTC_000214291