NYC-WTC_000214760

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 6/16/02 7:00:00 PM N.Y.C. Board of Education ATC Group#: 8139 28-11 Queens Plaza North Analysis Date: 6/17/02 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 (AH ERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample k'oliiine Aiialyzeil Asb Type(s) 0.5p-5 5p (S/cc) (S/mm^) (S/cc) Noles

08 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8139 -8

09 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8139 -9

10 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S/39 -/O

II 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8139 -1/

12 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8139 -12

13 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8139 -13

14 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8139 -14

15 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 S/39 -IS

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: (proved by. s.

Disclaimer: The laboratoiy is noi responsible for data reported in structures/cc, which is dependent on volume !d by non-laboratory personnel. This lab is 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 daim 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 (induding 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request

Accredited for NVLAP PLMAEM #101187-0. NY State ELAP #10879

Page 2 of 2

CITY_21MC100_002870907

NYC-WTC_0002 14761