NYC-WTC_000189323

NYC 9/11 Public Portal Document

Attn Mr Bernard Orlan Received 4/11/02 9 30 00 PM NYC Board of Education ATC Group # 7385 28 11 Queens Plaza North Analysis Date 4/11/02 Long Island City NY 11101 Fax (212)475 4122 Phone (212) 477 8941 Project H S for Leadership & Public Service 90 Trinity Place NY NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analylical Asbestos Area /Son Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) OSftS Sfi (S/cc) (S/mm) (S/cc) Notes

11 1816 00 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 8

12 1824 00 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 9

13 181600 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 10

14 181600 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 II

15 1808 00 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 12

16 1824 00 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 13

17 1824 00 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 14

IS 1808 00 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 15

19 181600 0 0450 0 None Detected 0 0 0 0047 <22 24 <0 0047 7385 16

ROMAN PEYSAKHOV MICHAEL A GORYCKI Ph D

Analyzed by iproved 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 S-eilfy responsible for data reported in structures/mm This report may not be reproduced except in full without wntten 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 preasion) is available upon request

Accredited for NVLAP PLMfTEM #101187 0 NY State ELAP #10879

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CITY_21MC100_003085899

NYC-WTC_000189324