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ATC Associates asbestos fiber analysis report, June 2002

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Formal laboratory report detailing transmission electron microscopy results for asbestos fiber analysis performed on samples from a high school project.

NYC-WTC_000184718–000184720
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NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 6/9/02 4:00:00 PM N.Y.C. Board of Education ATC Group#: 8022 28-11 Queens Plaza North Analysis Date: 6/9/02 Long Island City, NY 11101

Fax: (212) 475-4122 Phone: (212)477-8941

Project: New Stuyvesant H. S., 345 Chambers St., NY , NY

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 Concentration Sample Volume Analyzed Asb Type(s) O.Sfi-S Sp (S/cc) (S/mm^) (S/cc) Notes

8 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 < 0.0044 8022 -8

9 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -9

10 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 8022 -10

.11 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -II

12 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -12

13 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -13

14 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -14

15 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -15

16 1944.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 8022 -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 aEis only responsible for data reported in structures/mmE 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 PLIWTEM #101187-0, NY State ELAP #10879

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CITY_21MC100_0 03105503

NYC-WTC_000184719

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NYC-WTC_000184719Source: NYC Law Department, mirrored locally

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