NYC-WTC_000192267

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/12/02 7:05:00 PM N.Y.C. Board of Education ' ATC Group #: 7389 28-11 Queens Plaza North Analysis Date: 4/13/02 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 Volume Analyzed Asb Typefs) O.Sft-5 Sp (S/cc) (S/mm^) (S/cc) Notes

8 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7389 -8

9 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 7389 -9

10 1960.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7389 -10

II- 1920.00 0.0450 0 None Defected 0 0 6.0045 <22.24 <0.0045 7389 -II

12 1920.00. 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7389 -12

13 1928.00 0.0450 . 0 . None Detected 0 0 0.0044 <22.24 <0.0044 7389 -13

14 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7389 -14

15 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7389 -IS

16 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7389 -16

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: • Approve^by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by ron-laboratory personnel. This tStrls 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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