NYC-WTC_000124958
AMBIENT GROUP, INC..
10 MORRIS AVENUE .
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, 6TH FLOOR DATE ANALYZED: 10/14/01
TECHNICIAN: PETER SCHORK
LABORATORY ID DESCRIPTION
SAMPLE
CONSTITUENTS
'"* DERCENTOR-: ore. 7,
SAMPLE **
NYC 9/11 Public Portal Document
CELLULOSE 20.0%
LOCATION #8-BULK FIBER GLASS 2.0%,
CEMENT DUST 9.2%
GRAVEL ROAD DUST 40.0%
“teow CARBON PARTICLES - . ~» 10.0%
: CHRYSOTILE “(8%
TOTAL 100.0%
Signed for Ambient Group Inc. by,
TAREK FATA
ND = 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-Q-Cell Cassettes. All results disclosed in this report relate only to the items tested. No reproduction of all or any portion of this report shall occur without written approval
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 time they may be disposed
of in accordance with applicable regulations.
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NYC-WTC_000124958Source: NYC Law Department, mirrored locally