NYC-WTC_000232069

NYC 9/11 Public Portal Document

AMBIENT GROUP, INC. 10 Morris Avenue, Glen Cove, NY 11542 Phone: (516) 671-2370 - Fax: (516) 609-8271 NY ELAP ID#10865

Airborne Asbestos Fiber Analysis by Transmission Electron Microscopy

Client: Lower Manhattan Development Corp. Job Number: 2043 Address: One Liberty Plaza, 20th Floor Date Received: 11/27/2004 New York, NY 10006 Date Analyzed: 12/02/2004 Collected By: Dennis Ikhide Job Location: 130 Liberty Street Collected: 11/25/2004 14:05 Rotometer: Standard

Lab ID Asbestos Analytical Asbestos Asbestos Start/ Volume Asbestos Structures Non- Sensitivity Concentration Concentration Field ID Sample Location Stop Flow (liters) Type(s) >, 5gm > Spin Asbestos (AS/cc) (AS/cc) (AS/mni2) <5gin 0013199-001 Washington Street/ 14:05 4 1920 None Detected 0 0 0 0.0008 <0.0008 <3.98 Albany Street 22:05 27928-7 0013199-002 Albany Street/ 14:08 4 1924 None Detected 0 0 0 0.0008 <0.0008 <3.98 Greenwich Street 22:09 27928-8 o 0013199-003 Greenwich Street 14:11 4 1928 None Detected 0 0 0 0.0008 <0.0008 <3.98 22:13 1^ 27928-9 o 14:17 4 0 0 0 0.0008 <0.0008 <3.98 m 0013199-004 Liberty Street 1932 None Detected 22:20 27928-10 o 0013199-005 Washington Street/ 14:20 4 1936 None Detected 0 0 0 0.0008 <0.0008 <3.98 20 DO Cedar Street 22:24 27928-11 'o > z

s c DO SIGNED FOR AMBIENT GROUP, INC. BY: Page 2 of 3 l"” o Disclaimers: The laboratory is not responsible for fibers counted in fibers/cc which is dependent on volume collected by non-laboratory personnel. o This report may not be duplicated in part without written permission by Ambient Group, Inc. this report must not be used to claim product endorsement by NVLAPor any agency of the U.S. Government. o This report relates only to the samples listed above. o

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NYC-WTC_000232070