NYC-WTC_000212793

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 6/6/02 8:00:00 PM N.y.C. Board of Education ATC Group#; 7989 28-11 Queens Plaza North Analysis Date: 6/7/02 Long Island City, NY 11101 Fax; (212)475-4122 Phone: (212)477-8941 Project; NYC-BOE PS 234M Project#: 14584-1823

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 f^olume Analyzetl Asb Type(s) O.Sfi-S Sfi (S/cc) (S/mm^) (S/cc) Notes

08 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7989 -8

09 1912.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7989 -9

10 1912.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 79S9 -/O

11 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7989 -11

12 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7989 -12

13 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 ,’989 -13

14 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 798<} -14

15 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 -15

MARX PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: ipro^ by:

Disdairner The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This laoTs only responsible for data reported in structureimm' This report may not be reproduced, except in full, without written approval by ATC Associates Inc. This report may not be used to daim produci: 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 PLWTEM #1011870, NY State ELAP #10879

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