NYC-WTC_000194188

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: 5/3/02 7:45:00 PM N.Y.C. Board of Education ATC Group#: 7621 28-11 Queens Plaza North Analysis Date: 5/4/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941 Project: New Stuyvesant H. S., 345 Chambers St., NY, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area IVon Asbestos # Struaures Sensitivity Concentration Sample yolume Analyzed Asb Type(s) O.Sp-5 Sp (S/cc) (S/mm’) (S/cc) Notes

I 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7621 -I

2 1920.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 7621 -2

3 1920.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 7621 -3

4 1920.00 0.0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 7621 -4

5 1928.00 0.0450 ■ 0 None Detected 0 0 0.0044 <22.24 <0.0044 7621 -5

6 . 1928.00 0.0450 0 NoneDetected 0 0 0.0044 <22.24 < 0.0044 7621 -6

3 1928.00 0.0450 0 None Detected 0 ' 0 0.0044 <22.24 <0.0044 762/ -7

MICHAEL A. GORYCKI, Ph.D. MARKPEYSAKHOV Analyzed by: Approved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratoiy 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 laboratoiy and analysis' accuracy and precision) is available upon request

Accredited for NVLAP PLMfTEM #101187-0, NY State ELAP #10879

Page 1 of 3

CITY_21MC100_0 03095966

NYC-WTC_000194188