NYC 9/11 Public Portal Document
TESTWELL LABORATORIES, INC.
L Environmental Laboratory
47 Hudson Street, Ossining, New York 10562
NYS t:taP # 11142
NVLAP # 200083-0
AIHA # 100147
Transmission Electron Microscopy Results
Client. Bovis Lend Lease - LMB
200 Park Avenue
•
New York, New York Date Collected: 07/11/02
Date Rec'd (lab): 07/12/02
Sample Location: Millenium Hilton Hotel @ WTC Various Floors Analysis Date: 07/16/02
55 Church Street TEM Analyst: D. Mir/
New York, New York Analytical Method: AHERA
Field Technician: B. Gitman
Filter Type: MCE 0.45 micron
tvg.Grid Opening: 0.0121mm2
Volume Grid
Lab Number
Sample #: Sample Location: Coll. Openings Grid Area Countable Asb. Concentration Concentration
02TEM # alyzed Analyzed Structures Structures/mm2 Structures/cc
(liters) An
285 9th Floor 4248 1280.0 6 0.073 0 <13.77 <0.004
286 9th Floor 4249 1280.0 6 0.073 0 <13.77 <0.004
287 9th Floor 4250 1280.0 6 0.073 0 <13.77 <0.004
M 288 9th Floor 4251 1280.0 6 0.073 0 <13.77 <0.004
289 9th Floor 4252 1280.0 6 0.073 0 <13.77 <0.004
290 Field Blank 4253 0.0 6 0.073 0 <13.77 <0.004
291 Field Blank 4254 0.0 6 0.073 0 <13.77 <0.004
Structures/mm2 Structures/cc
Total Average Concentrations <13.77 <0.004
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oT anaiy isirepon snau not De used oy the client to claim product endorsement by the National
ceruncate
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_00010366
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