NYC 9/11 Public Portal Document
L Environmental Laboratory , ~.
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Nv5 ELAP 011142
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47 Hudson Street, Ossining, New'
HIJENT 9 N
N FIA O 100147
Transmission Electron Microscopy Results
Client: Bovis Lend Lease Project#: MBO-025AS
200 Park Avenue
New York, New York Date Collected: 09/30/01
Date Rec'd (lab): 10/01/01
Sample Location: The Millenium Hilton Hotel Analysis Date: 10/08/01
55 Church Street TEM Analyst: D. McCarl
New York, New York Analytical Method: AHERA
EPA 40 CFR Part 763
Field Technician: M. Sokolinskiy/O. Kolendekov
Filter Type - MCE 0.45 micron
Avg.Grid Opening: 0.0121mm2
Lab Number Volume Coll. Grid Grid Area Countable Asb. Concentration Concentration
Sample #: Sample Location: 01TEM # (titers) Openingsd Analyzed Structures Structures/mm' Structures/cc
Anal e I
19-1 South Side of Corridor 3508 1250.0 6 0.073 10 137.74 ' 0.042
19-2 In the Middle of Corridor 3509 1250.0 6 0.073 7 96.42 0.030
19-3 North Side of Corridor 3510 1250.0 6 0.073 1 13.77 0.004
18-1 South Side of Corridor 3511 1250.0 6 0.073 8 110.19 0.034
In the Middle of Corridor 3512 1250.0 6 0.073 5 68.87 0.021
18-2
North Side of Corridor 3513 1250.0 6 0.073 5 68.87 0.021
18-3
14-1 South Side of Corridor 3514 1250.0 6 0.073 9 123.97 L, 0.038
In the Middle of Corridor 3515 1250.0 6 0.073 17 234.16 - 0.072
14-2
North Side of Corridor 3516 1250.0 6 0.073 15 206.61 0.064
14-3
12-1 South Side of Corridor 3517 1250.0 6 0.073 5 68.87 0.021
In the Middle of Corridor 3518 1250.0 6 0.073 6 82.64 ✓ 0.025
12-2
North Side of Corridor 3519 1250.0 6 0.073 4 55.10 0.017
12-3
Structures/mm2 Structures/cc
Total Average Concentrations 105.60 <0.032
claim product endorsement by the National Voluntary Laboratory Approval
This report is the confidential property of our clients. This certificate of analysis/report shall not be used by the client to
collection. This certificate of analysis/report shall not be reproduced in full, without
Program (NVLAP) or any agency of the United States Government. The laboratory has no control over air sampling
the written approval of Testwef Laboratories. Inc.
Copyright O 2001 Testwe0 Laboratories. Inc.
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NYC-WTC 000103795
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