NYC-WTC_000227280

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 3/13/02 8:45:00 PM N.Y.C. Board of Education ATC Group#: 7061 28-11 Queens Plaza North Analysis Date: 3/13/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: H.S. Of Economics And Finance 100 Trinity Place, New York, NY

Asbestos Fiber Analysis by Transmission ESectron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) 0.5/i-S 5ft (S/cc) (S/mm^) (S/cc) Notes

10 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -8

II 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -9

12 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -10

13 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -11

14 1832.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -12

15 1832.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -13

16 1832.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -14

17 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -15

18 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7061 -16

ROMAN 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-laboratoiy personnel. This lab is only responsible for data reported in stnictures/mmL This report may not be reproduced, except in lull, 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 forNVLAP PLIWTEM #101187-0, NY State ELAP #10879

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