PCM air sample results chain of custody, 200 Park Avenue

NYC 9/11 Public Portal Document

TESTWELL LABORATORIES, INC. •

IL Environmental Laboratory 47 Hudson Street, Ossining, New York 10562

r_ PCM AIR SAMPLE RESULTS NYS FLAP NVLAP a a

11142 200083-0 AIHA t 100147

a

Client: Bovis Lend Lease Date Collected: 05/28/02 Date Rec'd (lab): 05/29/02 Project #: MBO-025AB Analysis Date: 05/29/02 Analyst: A. Sokol 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 Location: Sample Type 02PCM Volume Concentration f/cc I Outside Work Area Clean Room of During 14578 1200 0.0025 325 •

Remote Personal Decon

M • 326

327 Outside Work Area Remote Waste Decon Outside Work Area 46th Floor Inside During

During- 14579

14580 1200

1200 <0.0023

<0.0023 Airlock Outside Work Area 46th 328 Floor During 14581 1200 0.0025 Freight Elevator Lobby Outside Work Area 45th Floor Inside During 14582 1200 I 329 Airlock <0.0023

I 330 Outside Work Area 45th Floor Freight Elevator Lobby During 14583 1200 <0.0023

Outside Work Area 44th Floor Inside 331 During. 14584 1200 <0.0023 Airlock Outside Work Area 44th 332 Floor During 14585 1200 <0.0023 -Freight Elevator Lobby Outside Work Area 43rd Floor Inside During 14586 1350 <0.0018 333 Airlock Outside Work Area 43rd Floor 334 During 14587 1350 0.0024 Freight Elevator Lobby Outside Work Area 42nd Floor Inside 335 During 14588 1350 0.0020 Airlock Outside Work Area 42nd Floor During 14589 1350 0.0025 336 Freight Elevator 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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