NYC-WTC_000212924

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, Phone: (212)353-8280 10010 Fax:(212)353-8306 IC Attn: Mr. Bernard Orlan Received: 6/20/02 9:00:00 PM N.Y.C. Board of Education ATCGroup#: 8195 28-11 Queens Plaza North Analysis Date: 6/20/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 Project; NYC-BOE PS234M Project#: 14584-1823

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos ztreii Non Asbestos If Structures Sensitivity Concentration Sample ^'olume Analyzed Asb Typefs) 0.Sp-S 5p fs/cc) fS/mm’) fS/cc) Noles

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8195 -I

02 1936.00 0.0450 0 Ni}ne Detected 0 0 0.0044 <22.24 <0.0044 ai95 -2

03 1944.00 0.0450 0 N'Sne Detected 0 0 0.0044 <22.24 <0.0044 ai95 -3

04 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 tI95 -4

05 1936.00 0.0450 0 Nono Detected 0 0 0.0044 <22.24 <0.0044 l:/93 -5

06 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8/95 -6

07 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8195 -7

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: Apgroved by;

Dtsdaimer The laboratory is iwt responsible for data reported in structures/ce, which is dependent on volume by non-laboratory personnel. This lab is only responsible lor data reported in stnjctures'mm'. 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 for NVLAP PLWTeM #101187-0, NY State ELAP #10879

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NYC-WTC_000212924