NYC-WTC_000124919
AMBIENT GROUP, INC.
10 MORRIS AVENUE
GLEN COVE, NY 11542
DUST CHARACTERIZATION LABORATORY DATA REPORT
DATE COLLECTED: 10/14/01
DATE RECEIVED: 10/14/01
DATE ANALYZED: 10/14/01
PROJECT ID: 211379
CLIENT: BOSTON PROPERTIES
LOCATION: 90 CHURCH STREET, 11TH FLOOR
TECHNICIAN: PETER SCHORK
FIELD ID
LABORATORY ID DESCRIPTION
11-A7
DB2867 LOCATION #7-BULK
SAMPLE
CONSTITUENTS
PERCENT OF
SAMPLE **
CELLULOSE
FIBER GLASS
CEMENT DUST
GRAVEL ROAD DUST
CARBON PARTICLES
TOTAL
10.0%
“SOQO0% ‘oer Ine ow.
20.0%
30.0%
10.0%...
T00.0%"'.
NYC 9/11 Public Portal Document
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-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 the Client, Ambient Group inc. will retain the sampies listed in this report for five (5) days, after which time they may be disposed
of in accordance with applicable regulations.
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000124919Source: NYC Law Department, mirrored locally
Laboratory report characterizing settled dust composition at 75 Park Place collected on November 8, 2001, identifying constituents like cellulose and cement dust.
Laboratory report characterizing settled dust composition at 75 Park Place collected on November 8, 2001, identifying constituents like cellulose and cement dust.
Laboratory report characterizing settled dust composition at 75 Park Place collected on November 8, 2001, identifying constituents like cellulose and cement dust.
Laboratory report characterizing settled dust composition at 75 Park Place collected on November 8, 2001, identifying constituents like cellulose and cement dust.
Laboratory report characterizing settled dust composition at 75 Park Place collected on November 8, 2001, identifying constituents like cellulose and cement dust.