PCM air sample results chain of custody, 200 Park Avenue

NYC 9/11 Public Portal Document

L TESTWELL LABORATORIES, INC. Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NYS EL P 4 11142

NVLAP 4 200083-0

f-- AIHA 4 100147

PCM AIR SAMPLE RESULTS Client: Bovis Lend Lease Date Collected: 05/30/02 Date Rec'd (lab): 05/31/02 Project #: MBO-025AB Analysis Date: 05/31/02 Analyst: D. Agrest Sample Location Millenium Hilton @ WTC 55 Chruch Street Analytical Method: NIOSH 7400 New York, New York Various Floors Sample Condition Acceptable? YES Field Technician T. Chhetry

Sample #: Sample Sample Concentration P Location: 02PCM Volume f/cc Type

Outside Work Area Clean Room of 369 During 14890 1200 0.0029 Remote Personal Decon Outside Work Area Remote Waste During 14891 1200 0.0035 370 Decon Outside Work Area 43rd Floor Inside During 14892 1200 0.0025 371 a Airlock Outside Work Area 43rd Floor During 14893 1200 <0.0023 372 Freight Elevator Lobby a

Outside Work Area 42nd Floor Inside 373 During 14894 1200 <0.0023 . Airlock Outside Work Area 42nd Floor 374 During 14895 1200 0.0027 Freight Elevator Lobby Outside Work Area 41st Floor Inside 375 During 14896 1200 <0.0023 Airlock Outside Work Area 41st Floor During 14897 1200 0.0025 376 Freight Elevator Lobby Outside Work Area 5th Floor Inside 377 During 14898 1200 0.0037 Airlock Outside Work Area 5th Floor Freight During 14899 1200 0.0033 378 Elevator Lobby Outside Work Area Clean Room of 0 379 During 14900 1350 0.0020 Remote Personal Decon Outside Work Area Remote Waste During 14901 1350 0.0025 380 Decon Limit of quantitation based on volume of air collected and 5.5 f/100 fields as per the NIOSH 7400 method. The report value is calculated by using the higher value of either the actual concentration or the limit of quantification reported at P(0.05) indicating the 95% confidence level at 2 standard deviations. " Sample Information is provided by the client & presented as stated. "' Laboratory QC data available upon request. "" The laboratory has no control over air sampling collection. Reports are 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. This certificate of analysis/report shall not be reproduced except in full, without the written approval of Testwell Laboratories, Inc.

Deborah McCall - Laboratory Director

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