NYC 9/11 Public Portal Document
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TESTWELL LABORATORIES, INC.
Environmental Laboratory NYS ELAP 4 11142
47 Hudson Street, Ossining, New York 10562 NVLAP A 200083-0
AIHA 8 100147
Transmission Electron Microscopy Results
Client: Bovis Lend Lease - LMB
200 Park Avenue
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New York, New York Date Collected: 06/11/02
Date Rec'd (lab): 06/12/02
Sample Location: Millenium Hilton Hotel @ WTC Various Floors Analysis Date: 06/14/02
55 Church Street TEM Analyst: D. McCarl
New York, New York Analytical Method: AHERA
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Field Technician: 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: Coll. Openings
02TEM # Analyzed Structures Structures/mm2 Structures/cc
(liters) Analyzed
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Inside Work Area
137 2870 1280.0 6 0.073 0 <13.77 <0.004
35th Floor
Inside Work Area
138 2871 1280.0 6 0.073 0 <13.77 <0.004
35th Floor
Inside Work Area
139 2872 1280.0 6 0.073 0 <13.77 <0.004
35th Floor
Inside Work Area
140 2873 1280.0 6 0.073 0 <13.77 <0.004
35th Floor
Inside Work Area
141 2874 1280.0 6 0.073 0 <13.77 <0.004
35th Floor
Inside Work Area
142 2875 1280.0 6 0.073 0 <13.77 <0.004
36th Floor
Inside Work Area
143 2876 1280.0 6 0.073 0 <13.77 <0.004
36th Floor
Inside Work Area
144 2877 1280.0 6 0.073 0 <13.77 <0.004
36th Floor
Inside Work Area
145 2878 1280.0 6 0.073 0 <13.77 <0.004
36th Floor
Inside Work Area
146 2879 1280.0 6 0.073 0 <13.77 <0.004
36th Floor
Structures/mm2 Structures/cc
S 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
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NYC-WTC 000103639
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