NYC-WTC_000204181

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/3/02 5:50:00 PM N.Y.C. Board of Education ATC Group#: 7317 28-11 Queens Plaza North Analysis Date: 4/3/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: NYC BOE H.S. For Leadership & Public Services

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 k'olume Analyzed Asb Type(s) O.Sfi-5 Sft (S/cc) (S/mm^) (S/cc) Notes

11 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 73/7 -3

12 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 < 0.0047 7317 -9

13 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7317 -10

14 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7317 -II

15 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 < 0.0047 7317 -12

16 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7317 -13

17 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 < 0.0047 7317 -14

18 1832.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7317 -15

19 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7317 -16

I MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by; Approved by:

Disclaimer The laboratory is not responsible for data reported in structuresTcc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structures/mm’. 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 State ELAP #10879

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