NYC-WTC_000189212

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone; (212) 353-8280 Fax: (212) 353-8306 BWC Attn: Mr. Bernard Orlan Received: 3/7/02 8:30:00 PM N.Y.C. Board of Education ATC Group #: 6976 28-11 Queens Plaza North Analysis Date: 3/8/02 Long Island City, NY 11101 Fax; (212) 475-4122 Phone: (212)477-8941 Project: NYC-BOE PS 234M Project#: 14584-1 823

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 io/iime Analyzed Asb Type(s) 0.5fi~5 5fl (S/cc) (S/mm^) (S/ce) Notes

01 1920.00 0.0450 0 None Delected 0 0 0.0045 <22.24 <0.0045 6976-I

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -3

04 1920.00 0.045.0 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -4

05 ■ 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -5

06 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -6

07 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -7

08 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6976 -8

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D

Analyzed by: Approved by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is depenOent on volume collected by non-laboratoiy personnel. This lab is only responsible for data reported in structures/mm5 This repon may not be reproduced, except in full, without written approi/al 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 PLMfTEM #101187-0. NY State ELAP #10879

CITY_21MC100_003084469

NYC-WTC_000189212