NYC-WTC_000218416

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone; (212) 353-8280 Fax:(212)353-8306

Attn: Mr. Bernard Orlan Received; 3/28/02 3:30:00 PM N. Y.C. Board of Education ATC Group#: 7247 28-11 Queens Plaza North Analysis Date: 3/28/02 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 Volume Analyzed Asb Type(s) 0.5/»-S Sfi (S/cc) (S/mm^) (S/ccj Notes

,01 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7247

02 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7247 -2

03 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7247 -3

04 1952.00 0.043.0 0 None Detected 0 0 0.0044 <22.24 <0.0044 7247 .4

05 1952.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 7247 -5

0.6 1944.00 0.0450 0 None Detected 0 .0 • 0.0044 <22.24 < 0.0044 72 4 7 -6

07 1936.00 0(0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7247 -7

MARKPEYSAKHOV MICHAEL A. GORYCKI. Ph.D

Analyzed by: ^proved by:

Disclaimer The laboratory is not responsible tor data reported in structures/ce, whicri is dependent on volume collected by non-iaboratory personnel. This lab 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 tc 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 PLM/TEM #101187-0, NY State ELAP #10879

CITY_21MC100_002878393

NYC-WTC_000218416