NYC 9/11 Public Portal Document
11L Environmental Laborato
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Transmission Electron Microscopy Results
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T AA #
100147
client: Bovis Lend Lease Project#: MBO-025AB
200 Park Avenue
New York, New York Date Collected: 09/30/01
Date Reed (lab): 10/01/01
Sample Location: The Millenium Hilton Hotel Analysis Date: 10/09/01
55 Church Street TEM Analyst: D. MCCar/
New York, New York Analytical Method: AHERA
EPA 40 CFR Part 763
Field Technician: T. Chhetry
Filter Type - MCE 0.45 micron
Avg.Grid Opening: 0.0121mm'
Sample #: Sample Location:
Lab Number Volume Coll.
Grid
Openings
1 Grid Area I Countable Asb. Concentration Concentration
01TEM # (liters) Analyzed Analyzed Structures Structures/mm, Structures/cc
16-1 North Side of Corridor 3548 1300.0 6 0.073 11 151.52 0.045
16-2 In the Center of Corridor 3549 1300.0 6 0.073 13 179.06 0.053
16-3 South Side of Corridor 3550 1300.0 6 0.073 15 206.61 " 0.061
15-1 North Side of Corridor 3551 1300.0 6 0.073 10 137.74 ✓ 0.041
15-2 In the Center of Corridor 3552 1300.0 6 0.073 4 55.10 0.016
15-3 South Side of Corridor 3553 1300.0 6 0.073 8 110.19-" 0.033
BLK-1 Field Blank 3554 0.0 6 0.073 0 <13.77 N/A
BLK-2 Field Blank 3555 0.0 6 0.073 0 <13.77 N/A
BLK-3 Field Blank 3556 0.0 6 0.073 0 <13.77 N/A
Structures/mm2 Structures/cc
Total Average Concentrations 140.04 0.04
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Program (NVLAP) or any agency of the United States Government. The laboratory has no control over air sampling collection. This certificate of analysisrreport shag not be reproduced In full. without
the written approval of Testwell Laboratories, Inc.
Copyright 02001 Testwefl Laboratories. Inc.
NYC-WTC 000103797
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