NYC 9/11 Public Portal Document
L L Environmental Laboratory /--'~_
47 Hudson Street, Ossining, New( , 10562
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Transmission Electron Microscopy Results
Client Bovis Lend Lease Project#: MBO-025AB
200 Park Avenue
New York, New York Date Collected: 09/28/01
Date Rec'd (lab): 09/28/01
Sample Location: The Millenium Hilton Hotel Analysis Date: 09/30/01
55 Church Street TEM Analyst: D. MCCari
New York, New York Analytical Method: AHREA
EPA 40 CFR Part 763
Field Technician: M. Sokolinskiy/O. Koledenkov
Filter Type - MCE 0.45 micron
Avg.Grid Opening: 0.0121mm2
Sample #: Sample Location:
Lab Number Volume Colt.
01TEM # (liters)
Grid
Openings
Anal ed I Grid Area
Analyzed
Countable Asb.
Structures
Concentration
Structures/mm'
Concentration
Structureslcc
55-1 South Side of Corridor 3408 1250.0 6 0.073 2 27.55 0.008
55-2 In the Middle of Corridor 3409 1250.0 6 0.073 3 41.32 0.013
55-3 North Side of Corridor 3410 1250.0 6 0.073 2 27.55 0.008
54-1 South Side of Corridor 3411 1250.0 6 0.073 3 41.32. 0.016
54-2 In the Middle of Corridor 3412 1250.0 6 0.073 3 41.32 0.013
54-3 North Side of Corridor. 3413 1250.0 6 0.073 5 68.87 0.021
53-1 South Side of Corridor 3414 1250.0 6 0.073 8 110.19 0.034
53-2 In the Middle of Corridor 3415 1250.0 6 0.073 7 96.42 0.030
North Side of Corridor 3416 1250.0 6 0.073 0 <13.77 <0.004
53-3
South Side of Corridor 3417 1250.0 6 0.073 0 <13.77 <0.004
52-1
In the Middle of Corridor 3418 1250.0 6 0.073 9 123.97 0.038
52-2
North Side of Corridor 3419 1250.0 6 0.073 5 68.87 0.021
52-3
Structures/mm2 Structures/cc
Total Average Concentrations <56.24 <0.017
to product endorsement by the National Voluntary Laboratory Approval
This report is the confidential property of our clients. This certificate of anaysislreport shall not be used by the client claim
certificate of anaysis(report shall not be reproduced in hi. without
program (NVLAP) or any agency of the United States Govemmeni The laboratory has no control over air sampling collection. This
the written approval of Testwell Laboratories. Inc.
Coovrioht 0 2001 Testwell Laboratories. Inc.
NYC-WTC 000103785
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