NYC-WTC_000218365

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 3'9/02 4:00:00 PM N.Y.C. Board of Education ATC Group 6999 28-11 Queens Plaza North Analysis Date: 3 9/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212) 477-8941 Project: NYC-BOE PS 234M Project#; 14584-1823 292 Greenwich St., New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbesius Area Non Asbestos # Structures Sensitivity Concentratian Sample yolume Analyzeil Asb Type(s) 0.5f,.5 Sm (S/cc) (S/mm^) (S/cc) Noles

09 1920 00 0.0450 0 None Detected 0 0 0.0045 <22.24 -<0.0045 6999 -9

10 1920 00 0.0450 0 None Detected 0 0 0.0045 <22.2a <0.0045 6999 -10

II 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6999 -11

12 1920,00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6999 -12

13 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6999 -13

14 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0 0045 6999 -14

15 1920.00 0.0450 0 None Detected 0 0 0.0045 22.24 <0.0045 6999 -15

MICHAEL A GORYCKl. Ph.D ROMAN PEY Analyzed by: Approved by

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsioie for data reported in structures/mm’. This report may not be reproduced, except in full, without written approval oy ATC Associates inc. This report may not oe used to claim product endorsement by NVLAP or any other agency ol 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 lequest.

Accredited lor NVLAP PLWTEM #101187-0, NY State ELAP #10879

CITY_21MC100_002878314

NYC-WTC_000218366