NY
:-WT
:_000124
1911
AMBIENT GROUP, INC.
10 MORRIS AVENUE
GLEN COVE, NY 11542
DUST CHARACTERIZATION LABORATORY DATA REPORT
PROJECT ID: 211379
CLIENT: BOSTON PROPERTIES
LOCATION: 90 CHURCH STREET, 12TH FLOOR
TECHNICIAN: PETER SCHORK
FIELD ID
LABORATORY ID
12-A8
DB2859
DESCRIPTION
LOCATION #8-SLIDE
DATE COLLECTED: 10/14/01
DATE RECEIVED: 10/14/01
DATE ANALYZED: 10/14/01
SAMPLE
CONSTITUENTS
CELLULOSE
FIBER GLASS
GRAVEL ROAD DUST
CARBON PARTICLES
DECAYED ORGANIC MATTER
TOTAL
20.0%
20.0%
15.0%
10.0%
35.0%
100.0%
Signed for Ambient Group Inc. by,
TAREK FATA
ND = None Derected, NA = Nor Analyzed, There are ruo (2) types of dust sample submitted for anaiysis: Settied = Samples submitted on tape/buik, Alrborne = Samples submitted
In Alr-O-Coll Cassettes. All resuits disclosed in this report relate only to the iters tested. No reproduction of ail or any portion of this report shall occur withour 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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