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NYC-WTC_000220474

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NYC 9/11 Public Portal Document

A Minority Business Enleiprise

HL TESTWELL LABORATORIES, INC. 47 Hudson Street, Ossining, New York 10562 Totcil Commitment to Quality Tel: (914)-762-9000 • Fax: (914)-762-9638 • testweillabs.com

Offices in Albany, NY CERTIFICATE OF LABORATORY ANALYSIS FOR ASBESTOS Queens, NY Woodbridge, NJ CONTENT Miami. FL

Transmission Electron Microscopy Results (TEM) CeifificatioiTS & Accreditations

a ANSI-RABI QMS-.A Apartment 4N Result: <13.77 Structures per mm^2

Date Collected: 11/23/01 Date of Analysis: 11/27/01 ISO 90(1) orRi inro

Medium: Air Analytical Method; AHERA ERA 40 CFR Part 763

According to the US EPA (40 CFR 763, Appendix A to Subpart E - NVLAP LAB CODE 200083-0 - Interim Transmission Electron Microscopy Analytical Methods -- Mandatory and Nonmandatory - and Mandatory Section to Determine Completion of Response], the level of concern for asbestos is based on continuous exposure to more than 70

J 1 structures per square millimeter for an extended period of time.

AASHTO RIF This report is the confidential property of our clients. This certificate of analysis/report shall not be used by the client to claim product endorsement by National Voluntary Laboratory Approval Program (NVLAP) or any agency of the United States Government. This certificate of analysis/report shall not be reproduced in full, without the written approval of Testwell Laboratories, Inc. Copyright © 2001 Testwell Laboratories. Inc. NYS DOH ELAP #10871. 11142 & 11651

Deborah McCarl-Laboratory Director

TesiweH i.aOoistanes. Ine. Cssutiny. NY it: accmdited hy Ihn An'oticon I'ldiislnal i-lyyiene AAsueiahcn (AiHA) ill Ihr ncidsfikY I'vaisne niroind' CFRT NO 100147

CITY_21MC100_002917880

NYC-WTC_000220474

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NYC-WTC_000220474Source: NYC Law Department, mirrored locally

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