NYC-WTC_000226406

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 1/28/02 9:00:00 PM N.Y.C, Board of Education 28-11 Queens Plaza North ATC Group#; 6492 Long Island City, NY 11101 Analysis Date: 1/28/02 Fax: (212)475-4122 Phone: (212)477-8941 Project: PS 89M 201 Warren Street, New York, NY Playground, Roof ,1st Floor Hallway

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 Concentt'otion Sample Volume Analyzed Asb Typefy) O.Sft-5 5fi (S/cc) (S/mm^) (S/cc) Notes 09 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -9

10 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -10

11 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492-11

12 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -12

13 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -13

14 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -14

15 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -15

16 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 6492 -16

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

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 responsible for data reported in structuras/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% confidetrce 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_002922452

NYC-WTC_000226406