NYC 9/11 Public Portal Document
91L.L
TESTWELL LABLATORIES, INC. -1
Environmental Laboratory NYS ELAP s 11142
47 Hudson Street, Ossining, New York 10562 NvtAP P 200083-a
AIHA * 100147
Transmission Electron Microscopy Results
Client: Bovis Lend Lease - LMB
200 Park Avenue
New York, New York Date Collected: 05/24/02
Date Recd (lab): 05/26/02
Sample Location: Millenium Hilton Hotel @ WTC (Various Floors) Analysis Date: 05/28/02
55 Church Street TEM Analyst: D. McCarl
New York, New York Analytical Method: AHERA
Field Technician: T. Chhetry
Filter Type: MCE 0.45 micron
vg.Grid Opening: 0.0121mm2
Volume Grid
Lab Number Countable Asb. Concentration Concentration
Sample #: Sample Location: Coll. Openings Grid Area Structures Structures/mm2 Structures/cc
02TEM #
(liters) Analyzed Analyzed
Inside Work Area 2445 ,280.0
37 6 0.073 1 13.77 0.004
' 56th Floor
Inside Work Area
38 2446 1280.0 6 0.073 1 13.77 0.004
56th Floor
Inside Work Area
39 2447 1280.0 6 0.073 2 27.55 0.008
56th Floor
Inside Work Area
40 2448 1280.0 6 0.073 1 13.77 0.004
56th Floor
Inside Work Area
41 2449 1280.0 6 0.073 1 13.77 0.004
. 56th Floor
Inside Work Area
42 2450 1280.0 6 0.073 N/A OVERLOAD OVERLOAD
49th Floor
43
Inside Work Area
49th Floor
Inside Work Area
2451 1280.0
I- 6 0.073 N/A OVERLOAD OVERLOAD
44 2452 1280.0 6 0.073 N/A OVERLOAD OVERLOAD
49th Floor
Inside Work Area <13.77
45 2453 1280.0 6 0.073 0 <0.004
49th Floor 1111
Inside Work Area
46 2454 1280.0 6 0.073 0 <13.77 <0.004
49th Floor
Inside Work Area <0.004
47 2455 1280.0 6 0.073 0 <13.77
48th.Floor
Inside Work Area
48 2456 1280.0 6 0.073 0 <13.77 <0.004
48th Floor
Structures/mm2 Structures/cc
Total Average Concentrations N/A J N/A
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
,.1 Voluntary Laboratory Approval Program (NVLAP) or any agency of the United States GovemmenL 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 Din3ctor/Approved Signatory
NYC-WTC 000103615
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