NYC 9/11 Public Portal Document
• ,ILL TESTWELL LABORATORIES, INC.
Environmental Laboratory
47 Hudson Street, Ossining, New York 10562
NYS ELAP # 11142
NVLAP 4200083-0
AIHA # 100147
Transmission Electron Microscopy Results
Client: Bovis Lend Lease - LMB
200 Park Avenue
New York, New York Date Collected: 06/05-06/02
Date Recd (lab): 06/06/02
• Sample Location: Millenium Hilton Hotel @ WTC Various Floors Analysis Date: 06/06/02
55 Church Street TEM Analyst: D. McCarl
New York, New York Analytical Method: AHERA
Field Technician: T. Chhetry/B. Gitman
Filter Type: MCE 0.45 micron _
• vg.Grid Opening: 0.0121mm2
Volume Grid
Lab Number Grid Area Countable Asb. Concentration Concentration
Sample #: Sample Location: 02TEM #
Coll. Openings
Analyzed Structures Structures/mm2 Structures/cc
(liters) Onalyed
Inside Work Area 5th
107 2760 1280.0 6 0.073 0 <13.77 <0.004
Floor
Inside Work Area 5th
108 2761 1280.0 6 0.073 0 <13.77 <0.004
Floor
Inside Work Area 5th
109 2762 1280.0 6 0.073 0 <13.77 <0.004
Inside Work Area 5th
110 2763 1280.0 6 0.073 0 <13.77 <0.004
Floor
Inside Work Area 5th
111 2764 1280.0 6 - 0.073 0 <13.77 <0.004
Inside Work Area 4th
112 2765 1280.0 6 0.073 0 <13.77 <0.004
Floor
Inside WFlrokorArea 4th
113 2766 1280.0 6 0.073 0 <13.77 <0.004
Inside Work Area 4th
114 2767 1280.0 6 0.073 1 13.77 0.004
Floor
Inside Work Area 4th
115 2768 1280.0 6 0.073 0 <13.77 <0.004
Floor
Inside Work Area 4th
116 2769 1280.0 6 0.073 0 <13.77 <0.004
Floor
117 Blank 2770 0.0 6 0.073 0 <13.77 <0.004
118 Blank 2771 0.0 6 0.073 0 <13.77 <0.004
Structures/mm2 Structures/cc
Total Average Concentrations <13.77 <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 000103630
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