NYC 9/11 Public Portal Document
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Environmental Laboratory
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Transmission Electron Microscopy Results
Client: Bovis Lend Lease Project#: MBO-025AB
200 Park Avenue
New York, New York Date Collected: 09/29/01
Date Rec'd (lab): 09/29/01
Sample Location: The Millenium Hilton Hotel Analysis Date: 10/03/01
55 Church Street TEM Analyst: D. MCCar!
New York, New York Analytical Method: AHERA
EPA 40 CFR Part 763
Field Technician: Tej Chhenty
Filter Type- MCE 0.45 micron
Avg.Grld Opening: 0.0121mm'
Lab Number [Volume Coll. Grid Grid Area Countable Asb. Concentration Concentration
Sample #: Sample Location: Openings AnalyzedE Structures Structures/mm' Structures/cc
01TEM # (liters)
Anal ed
39-1 39th Floor Corridor North 3444 1300.0 6 0.073 5 68.87 0.020
39-2 39th Floor Corridor Center 3445 1300.0 6 0.073 7 96.42 ✓ 0.029
39-3 39th Floor Corridor South 3446 1300.0 6 0.073 7 96.42 di 0.029
38-1 38th Floor Corridor North 3447 1300.0 6 0.073 7 96.42 ✓ 0.029
38-2 38th Floor Corridor Center 3448 ( 1300.0 6 0.073 24 330.58 f 0.096
38-3 38th Floor Corridor South 3449 1300.0 6 0.073 14 192.84 ✓ 0.057
37-1 37th Floor Corridor North 3450 1300.0 6 0.073 2 27.55 0.008
37-2 37th Floor Corridor Center 3451 1300.0 6 0.073 3 41.32 0.012
37-3 37th Floor Corridor South 3452 1300.0 6 0.073 3 41.32 0.012
36-1 36th Floor Corridor North 3453 1300.0 6 0.073 10 137.74 r/ 0.041
36-2 36th Floor Corridor Center 3454 1300.0 6 0.073 14 192.84 ✓ 0.057
36-3 36th Floor Corridor South 3455 1300.0 6 0.073 3 41.32 0.012
Structures/mm2 Structures/cc
Total Average Concentrations <113.63 <0.034
endorsement by the National Voluntary Laboratory Approval
This report is the confidential property of our clients. This certificate of analysis/report shag not be used by the client to claim produd
certificate of analysis/report shag not be reproduced in full, without
program (NVLAP) or any agency of the United States Government. The laboratory has no control over air sampling collection. This
the written approval of Testwel Laboratories. Inc.
Coowtoht 02001 Testwef Laboratories. Inc.
NYC-WTC 000103790
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