Asbestos air analysis results, H.S., April 2002

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/20/02 4:00:00 PM N.Y.C. Board of Education ATC Group#: 7482 28-11 Queens Plaza North Analysis Date: 4/20/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 . Project: New Stuyvesant H. S., 345 Chambers St., NY , NY Exterior and Interior of Building and Roof

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CER Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) B.Sp-5 Sp (S/cc) (S/mm^) (S/cc) Notes

18 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 74S2 -/S

19 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7482 -19

20 1808.00 0.0450 0 None Detected 0 0 0.0047 <22,24 <0.0047 7482 -20

21 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7482 -21

ROMAN 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 colletted by non-laboratory personnel. flSslab 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 refates 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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