NYC 9/11 Public Portal Document
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Transmission Electron Microscopy Results
Client: Bovis Lend Lease Project#: MBO-025AB
200 Park Avenue
New York, New York Date Collected: 09/30/01
Date Rec'd (lab): 10/01101
Sample Location: The Millenium Hilton Hotel Analysis Date: 10/08/01
55 Church Street TEM Analyst D. MCCarl
New York, New York Analytical Method: A}-{ERA
EPA 40 CFR Part 763
Field Technician: M. Sokolonskiy/O. Kolendenkov
Filter Type - MCE 0.45 micron
Avg.Grid Opening: 0.0121mm2
Grid
Lab Number Volume Coll. Grid Area Countable Asb. Concentration Concentration
Sample #: Sample Location: Openings
01TEM # (liters) Analyzed Structures Structuresimm Structuresicc
Anal ed
26-1 North Side of Corridor 3536 1300.0 6 0.073 6 82.64 0.024
26-2 In the Center of Corridor 3537 1300.0 6 0.073 8 110.19 ,/ 0.033
26-3 South Side of Corridor 3538 1300.0 6 0.073 15 206.61 ✓ 0.061
25-1 North Side of Corridor 3539 1300.0 6 0.073 6 68.87 0.020
25-2 In the Center of Corridor 3540 1300.0 6 0.073 Overloaded NIA N/A
25-3 South Side of Corridor 3541 1300.0 6 0.073 4 55.10 0.016
24-1 North Side of Corridor 3542 1300.0 6 0.073 10 137.74 ✓ 0.041
24-2 In the Center of Corridor 3543 1300.0 6 0.073 12 165.29 ✓ 0.049
24-3 South Side of Corridor 3544 1300.0 6 0.073 9 123.97 V 0.037
17-1 North Side of Corridor 3545 1300.0 6 0.073 7 96.42 ✓ 0.029
17-2 In the Center of Corridor 3546 1300.0 6 0.073 11 151.52 ✓ 0.045
17-3 South Side of Corridor 3547 1300.0 6 0.073 4 55.10 0.016
Structures/mm2 Structures/cc
Total Average Concentrations 113.95 I 0.03
This report Is the confidential property of our clients. This certificate of analysis/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 certificate of analysis/report shall not be reproduced in full, without
the written approval of Testwell Laboratories, Inc.
Coovriaht O 2001 Testweli Laboratories. Inc.
Lab ectotAppec'%ed ry
NYC-WTC 000103794
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