NYC-WTC_000204822

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: 4 25 02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7536 28-11 Queens Plaza North Analysis Date: 4'25 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 (AHEKA) Analytical Asbestos Area Sion Asbestos ft Striictiires Sensitivity Concentration Sample Coliiine Analyzetl Asb Type(s) O.ift-S 5ft (S/cc) (S/innC) (S/cc) Slates

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22,24 <0.0045 7536 -I

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <0.0045 7536 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <0.0045 7536 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <0.0045 7536 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <0.0045 7536 -5

06 192S.00 0.0450 0 None Detected 0 0 0.0044 <0 0044 7536 -6

07 1928.00 0.0450 0 None Detected 0 0 0.0044 0.0044 7536 -7

MICHAELA. GORYCKl. Ph.D. MARK PEYSAKHOV Analyzed by: .-'^proved by: __

Disclaimer: The laooratory is not responsible far data reported in structures/cc. which is dependent on volume collects by non-iaboratory personnel. This labSs^nly responsible tor data reported in structures/mrnO This report may not be reproduced, except in full, without written approval 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 tor NV;.AP PLM/TEM #101187-0. NY State ELAP #10879

Paf;e I uf I

CITY_21MC100_003061993

NYC-WTC_000204822