NYC 9/11 Public Portal Document
TESTWELL LABORATORIES, INC.
Environmental Laboratory NY$ FLAP # 11142
47 Hudson Street, Ossining, New York 10562 NVLAP n 200083-0
AIHA # 100147
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Transmission Electron Microscopy Results
Client: Bovis Lend Lease - LMB
200 Park Avenue
New York, New York Date Collected: 06/07/02
Date Rec'd (lab): 06/10/02
Sample Location: Millenium Hilton Hotel @ WTC Various Floors Analysis Date: 06/11/02
55 Church Street TEM Analyst D. McCarl
New York, New York Analytical Method: AHERA
Field Technician: T. Chhetry/B. Gitman
Filter Type: MCE 0.45 micron — —
vg.Grid Opening: 0.0121mm2
Volume Grid
Lab Number Grid Area Countable Asb. Concentration Concentration
Sample #: Sample Location: Coll. Openings
02TEM # Analyzed Structures Structures/mm2 Structures/cc
(liters) Analyzed
119 - 38th Floor 2807 1280.0 6 0.073 0 <13.77 <0.004
120 38th Floor 2808 1280.0 6 0.073 0 <13.77 <0.004
121 38th Floor 2809 1280.0 6 0.073 0 <13.77 <0.004
122 38th Floor 2810 1280.0 6 0.073 0 <13.77 <0.004
123 38th Floor 2811 1280.0 •6 4. 0.073 0 <13.77 <0.004
124 39th Floor 2812 1280.0 6 0.073 0 <13.77 <0.004
125 39th Floor 2813 1280.0 6 0.073 0 <13.77 <0.004
126 39th Floor 2814 1280.0 6 0.073 0 <13.77 <0.004
127 39th Floor 2815 1280.0 6 0.073 0 <13.77 <0.004
C7
128 39th Floor 2816 1280.0 6 0.073 0 <13.77 <0.004
129 40th Floor 2817 1280.0 6 0.073 0 <13.77 <0.004
I 130 40th Floor 2818 1280.0 6 0.073 0 <13.77 <0.004
Structures/mm2 Structures/cc
Total Average Concentrations <13.77 <0.004
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.
Laboratory Director/Approved Signatory
NYC-WTC 000103632
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