'C
-И
VT
_0001
24909
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
FIELDID
LABORATORY ID
DESCRIPTION
12-A6
DB2857
LOCATION #6-SLIDE
DATE COLLECTED: 10/14/01
DATE RECEIVED: 10/14/01
DATE ANALYZED: 10/14/01
SAMPLE
CONSTITUENTS
CELLULOSE
FIBER GLASS
CEMENT DUST
GRAVEL ROAD DUST
CARBON PARTICLES
TOTAL
PERCENT OF
SAMPLE **
20.0%
30.0%
10.0%
-30.0%
10.0%
100.0%
Signed for Ambient Group Inc. by,
TAREK FATA
ND = None Detected, NA « Not Analyzed, There are rwo (2) types of dust sample subnitzed for analysis: Settled = Samplas submitted on tape/bulk, Alrborne = Samples submitted
In Alr-O-Cell Cassettes. All resuits 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 theCllent, Ambient Group Inc. will retain the samples listed in this report for five (5) days, after which time they may bedisposed
of in accordance with applicable regulations.
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NYC-WTC_000124909Source: NYC Law Department, mirrored locally