NYC 9/11 Public Portal Document
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• LL TESTWELL LABORATORIES, INC.
Environmental Laboratory NYS ELAP # 11142
47 Hudson Street, Ossining, New York 10562 NVLAP # 200083-0
AIHA # 100147
Transmission Electron Microscopy Results
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Client: Bovis Lend Lease - LMB
200 Park Avenue
New York, New York Date Collected: 08/06/02
_ _ Date Rec'd (lab): 08/07/02 _
• Sample Location: Millenium Hilton Hotel @ WTC Various Floors Analysis Date: 08/07/02
55 Church Street TEM Analyst: D. McCarl
New York, New York Analytical Method: AHERA
Field Technician: B. Gitman
Filter Type: MCE 0.45 micron
vg.Grld Opening: 0.0121mm2
•
Volume Grid
Lab Number Countable Asb. Concentration Concentration
Sample #: Sample Location: Coll. Openings Grid Area
02TEM # Analyzed Structures Structures/mm2 Structures/cc
(liters) Analyzed
335 2nd Floor 5909 1280.0 6 0.073 0 <13.77 <0.004
336 2nd Floor 5910 1280.0 6 0.073 0 <13.77 <0.004
337 2nd Floor 5911 1280.0 6 0.073 0 <13.77 <0.004
338 2nd Floor 5912 1280.0 6 0.073 0 <13.77 <0.004
LI
339 Security Office 5913 1280.0 6 0.073 0 <13.77 <0.004
340 Blank 5914 0.0 6 0.073 0 <13.77 <0.004
•
341 Blank 5915 0.0
J 6 0.073
Total Average Concentrations
0 <13.77
Structures/mm2
<13.77
<0.004
Structures/cc
<0.004
This report is the confidential property of our clients. This certificate of analysis/report shall not be used by the client to claim product endorsement by the National
Voluntary Laboratory Approval Program (NVLAP) or any agency of the United States Government. The laboratory has no control over air sampling collection. This
certificate of analysis/report shall not be reproduced in full, without the written approval of Testwell Laboratories, Inc.
Laboratory Director/Approved Signatory
NYC-WTC 000103681
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