NYC-WTC_000191141

NYC 9/11 Public Portal Document

Attn; Mr. Bernard Ortan Received: 5/12/02 4:00:00 PM N.Y.C. Board of Education ATC Group#: 7718 28-11 Queens Plaza North Analysis Date: 5/12/02 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 Non Asbestos # Structures Sensitivity Concentration Sample t^olume Analyzed Asb Type(s) O.Sp-5 5p (S/cc) (S/mm^) (S/cc) Notes

S 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0,0044 7718 -8

9 1936,00 0.0450 0 None Detected 0 0 0,0044 <22.24 <0.0044 7718 -9

10 1944.00 0.0450 0 None Detected 0 0 0.0044 <22,24 <0,0044 7718 -10

11 1920.00 0.0450 0 None Detected 0 0 0.0045 <22,24 <0,0045 7718 -1!

12 1920,00 0,0450 0 None Detected 0 0 0,0045 <22.24 <0,0045 7718 -12

13 1920.00 0.0450 0 None Detected 0 0 0,0045 <22,24 <0,0045 7718 -13

14 1920.00 0.0450 0 None Detected 0 0 0,0045 <22,24 <0,0045 7718 -14 .

15 1920,00 0,0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7718 -15

16 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7718 -16

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 iswlly 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. Qualify control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

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

Page 2 of 3

CITY_21MC100_003090315

NYC-WTC_000191142