NYC-WTC_000231770

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: 12/27/2004 New York, NY 10006 Date Analyzed: 01/03/2005 Collected By: Rotimi Adeola Job Location: 130 Liberty Street Collected: 12/25/2004 6:05 Rotometer: Standard o o z m Lab ID Asbestos Analytical Asbestos Asbestos O m z Start/ Volume Asbestos Structures Non­ Sensitivity Concentration Concentration Field ID Sample Location Stop Flow (liters) Type(s) >. 5gm i Sgin Asbestos (AS/cc)” (AS/cc) (AS/nmi2) co <Sfiin c co m 0013613-001 Washington Street/ 6:05 4 1944 None Detected 0 0 0 0.0008 <0.0008 <3.98 O Albany Street 14:11 o 23150-7 □3 O -I 0013613-002 Albany Street/ 6:11 4.25 2048.5 None Detected 0 0 0 0.0008 <0.0008 <4.19 m Greenwich Street 14:13 O

m 23150-8 O □3 o 0013613-003 Greenwich Street 6:19 4 1908 None Detected 0 0 0 0.0008 <0.0008 <3.98 m 14:16 □3 z p 23150-9 0013613-004 Liberty Street 6:27 4 1892 None Detected 0 0 0 0.0008 <0.0008 <3.79 O 60 I 14:20 23150-10 7" O m 0013613-005 Washington Street/ 6:45 4 1836 None Detected 0 0 0 0.0008 <0.0008 <3.79 Cedar Street 14:24

'i DO 23150-11

> z z > 5c CO SIGNED FOR AMBIENT GROUP, INC. BY: Page 1 of 3 Disclaimers: The laboratory is not responsible for fibers counted in fibcrs/cc which is dependent on volume collected by non-laboratory personnel. DO 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 NVLAP or any agency of Ihe U.S. Government. 'o This report relates only to the samples lisleci above. 8o o co co

NYC-WTC_000231770