NYC 9/11 Public Portal Document
• 91lb TESTWELL LABORATORIES, INC.
Environmental Laboratory
47 Hudson Street, Ossining, New York 10562
NYS ELAP x 11142
NVLAP x 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: 06/27/02
Date Rec'd (lab): 06/28/02
Sample Location: Millenium Hilton Hotel @ WTC Various Floors Analysis Date: 07/01/02
55 Church Street TEM Analyst: D. McCarl
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New York, New York Analytical Method: AHERA
Field Technician: B. Gitman
Filter Type: MCE 0.45 micron
1vg.Grid' Opening: 0.0121mm2
Lab Number Volume Grid
is Sample #: Sample Location:
02TEM # Coll. Openings Grid Area Countable Asb. Concentration
Analyzed Concentration
(liters) Analyzed Structures Structures/mm2 Structures/cc
232 21st Floor 3219 1280.0 6 0.073 0 <13.77 <0.004
233 21st Floor 3220 1280.0 6 0.073 0 <13.77 <0.004
234 21st Floor 3221 1280.0 6 0.073 1 13.77 0.004
235 21st Floor 3222 1280.0 6 0.073 0 <13.77 <0.004
236 21st Floor 3223 1280.0 6 0.073 0 <13.77 <0.004
237 20th Floor 3224 1280.0 6 0.073 0 <13.77 <0.004
238 20th Floor 3225 1280.0 I 6 0.073 0 <13.77 <0.004
239 20th Floor 3226 1280.0 6 0.073 0 <13.77 <0.004
240 20th Floor 3227 1280.0 6 0.073 0 <13.77 <0.004
241 20th Floor 3228 1280.0 6 0.073 3 41.32 0.012
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242 Field Blank 3229 0.0 6 0.073 0 <13.77 <0.004
243 Field Blank 3230 0.0 6 0.073 0 <13.77 <0.004
Structures/mm21 Structures/cc
Total Average Concentrations N/A N/A
i nis report is the connoenuai property or our cuents. i nis certuncate or analys;s.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
i certificate of analysis/report shall not be reproduced in full, without the written approval of Testwell Laboratories, Inc.
Laboratory Director/Approved Signatory
40
NYC-WTC 000103661
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