PCM air sample results chain of custody, 200 Park Avenue

NYC 9/11 Public Portal Document

1 [ TESTWELL LABORATORIES, INC. Environmental Laboratory 47 Hudson Street, Ossining, New York 10562 NYS ELAP a 11142

Nvu1P * 200083.0 A1rw : 100147

S PCM AIR SAMPLE RESULTS Client: Bovis Lend Lease Date Collected: 05/15/02 Date Recd (lab): 05/16/02 Project #: MBO-025A8 Analysis Date: 05/16/02 Analyst: L. Chiaverini Sample Location Millenium Hilton @ WTC 55 Chruch Street Analytical NIOSH 7400 New York, New York Various Floors Sample Condition Acceptable? YES Field Technician T. Chhetry

Sample #: tion: Sample 02PCM Concentration Sample Loca Volume Type f/cc

90 Outside Work Area Clean Room of Personal Decon During 12809 1200 0.0041

91 Outside Work Area Waste Deccn During 12810 1200 <0.0023 Outside Work Area 56th Floor Inside) During 12811 1200 0.0033 92 Airlock Outside Work Area 56th Floor 93 During 12812 1200 0.0065 Freight Elevator Lobby 94 Outside Work Area 55th Floor inside • During 12813 1200 0.0029 Airlock Outside Work Area 55th Floor 95 During 12814 1200 <0.0023 Freight Elevator Lobby Outside Work Area 54th Floor Inside During 12815 1200 0.0045 96 Airlock S Outside Work Area 54th Floor 97 During 12816 1200 0.0025 Freight Elevator Lobby Outside Work Area 53rd Floor Inside During 12817 1200 <0.0023 98 Airlock 99 Outside Work Area 53rd Floor Freight Elevator Lobby During 12818 1200 0.0037 Outside Work Area 52nd Floor Inside During 12819 1200 0.0033 100 Airlock Outside Work Area 52nd Floor During 12820 1200 <0.0023 101 Freight Elevatory Lobby 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 McCarf - Laboratory Director

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