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Asbestos air analysis results, H.S., April 2002

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Chain of custody and laboratory report for transmission electron microscopy asbestos fiber analysis at a high school received April 5, 2002.

NYC-WTC_000179519–000179541
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NYC 9/11 Public Portal Document

'Attn.'^MrrBemard Orlan Received; 4/5/02 4.15:00 PM N.Y.C. Board of Education ATC Group#: 7333 28-11 Queens Plaza North Analysis Date: 4/5/02 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 Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos .Art'fl Non Asbestos # Structures Sensitivity Concentration Sample i^oluine Analyzetl Asb Type(s) tt.5,u-5 5ft (S/cc) (S/min^) (S/cc) .yotes

II 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 0.0044 7333 -S

12 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7333 -9

13 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7333 -10

14 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7333 -11

15 1920.00 0.0450 0 None Detected 0 0 0.0045 22.24 <0.0045 7333 -12

16 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 -13

17 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7333 -14

IS 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7333 -15

19 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7333 -16

MICHAEL A. GORYCKi, Ph.D. MARK PEYSAKHOV

Analyzed by Approved by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume coilected by non-laboratory personnel. Thiste is only responsible for data reported in structures/mm’. This report may not be reproduced, except in full without written aoprovai 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 S5% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP plM/TEM #101187-0, NY State ELAP #10879

Paf;e 2 uf Ji

CONFIDENTIAL, CITY_21MC100_003459900 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000179520

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NYC-WTC_000179520Source: NYC Law Department, mirrored locally

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Documentation of asbestos fiber analysis by TEM performed on samples from P.S. 234M received on May 21, 2002.

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