NYC-WTC_000202503

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received; 9/5/02 4;00:00 PM N.Y.C. Board of Education ATC Group #; 8810 28-11 Queens Plaza North Analysis Date; 9/6/02 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 Analyzed Asb Type(s) O.Sfi-S (S/cc) (S/mm^) (S/cc) Notes

17 1928.00 0.0450 0 None Detected 0 0 0,0044 <22.24 <0.0044 S8!0 -17

IS 1928.00 0.0450 0 None Detected 0 0 0.0044 <22,24 <0.0044 SS!0 -!S

■'19 0 0 0.0044 <22.24 <0.0044 1936.00 0.0450 0 None Detected 57 UI -19

20 1928.00 0.0450 0 None Detectea 0 0 0.0044 <22.24 <0.0044 8819 -20

21 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S8I0 -21

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: 'proved 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 is only responsible 'or data reported in structureslmmT 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 encorsement 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 MVLAP PLM/TEM #101187-0, NY Slate ELAP #10879

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