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NYC-WTC_000209826

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000209826–000209834
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NYC 9/11 Public Portal Document

AMBIENT GROUP, INC. 10 MORRIS AVENUE GLEN COVE, NY 11542

DUST CHARACTERIZATION LABORATORY DATA REPORT

PROJECT ID: 211379 DATE COLLECTED: 10/14/01 CLIENT: BOSTON PROPERTIES DATE RECEIVED: 10/14/01 LOCATION: 90 CHURCH STREET, 1 2TH FLOOR DATE ANALYZED: 10/14/01 TECHNICIAN; PETER SCHORK

FIELD ID SAMPLE PERCENT OF LABORATORY ID DESCRIPTION CONSTITUENTS SAMPLE **

12-Al CELLULOSE 23.0% DB2852 LOCATION #1-BULK FIBER GLASS 30.0% CEMENT DUST 10.0% — GRAVEL ROAD DUST 20.0%' RUST 5.0% CARBON PARTICLES 10.0% CHRYSOTILE 2.0% TOTAL 100.0%

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Signed for Ambient Group Inc. by, o J] CD

> z TAREK FATA z > NO « None Detected, NA « Not Analyzed, There are two (2) types of dust sample submitted for analysis: Settled ■ Samples submitted on tape/bulk, Airborne « Samples submitted in Air-O-Cell Cassettes. All results disclosed in this report rslste only to the items tested. No reproduction of all or any portion of this report shell occur without written approval c of Ambient Group Inc. Unless otherwise directed by the Client. Ambient Group Inc. will retain the samples listed in this report for five (5) days, after which lime they may be disposed DO of in accordance with applicable regulations.

DUST CHARACTERIZATION LABORATORY DATA REPORT o o o o ro co cn co

NYC-WTC_000209826

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NYC-WTC_000209826Source: NYC Law Department, mirrored locally

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