NYC-WTC_000214207

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: 6/2/02 6:00:00 PM N.Y.C. Board of Education ATC Group if: 7940 28-11 Queens Plaza North Analysis Date: 6/2/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941 Project: NYC-BOE PS 150M Project#; 14584-0824

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 V'olume Analyzed Asb Type(s) O.Sft-i 5/1 (S/cc) (S/mm^) (S/cc) !>/tttes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7940 -1

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7940 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7940 -5

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 7940 -4

05 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7940 -5

06 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7940 -6

07 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7940 -7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D

Analyzed by Approved by:

Disclaimer The laboratory is not responsible lor data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This Btn§ only responsible for data reported in structures/mm’. This report may not be reproduced, except in full, without wntten approval by ATC Associates Inc. Tins 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 35% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited lorNVLAP PLM/TEM #101187-0. NY State ELAP #10879

Pa/^e I of!

CITY_21MC100_002852763

NYC-WTC_000214207