PCM air sample results chain of custody, 200 Park Avenue

NYC 9/11 Public Portal Document

TESTWELL LABORATORIES, INC. Environmental Laboratory NYSEL 411142 47 Hudson Street, Ossining, New York 10562 etA # 200o83-o r-- XKA 4 100147

PCM AIR SAMPLE RESULTS Client: Bovis Lend Lease Date Collected: 05/13/02 Date Rec'd (lab): 05/14/02 Project #: MBO-025AB Analysis Date: 05/14/02 Analyst: V. Binchkauskas 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 #: Sample Location: Sample 02PCM Concentration Volume Type f/cc 49 Outside Work Area Clean Rocm of Personal Decon During 12389 1200 <0.0023

50 Outside Work Area Waste Decon During 12390 1200 <0.0023 i

Outside Work Area 56th Floor Inside During 12391 1200 51 <0.0023 Airlock Outside Work Area 56th Flocr During 12392 1200 0.0027 52 Elevator Lobby Outside Work Area 55th Floor Inside 53 During 12393 1200 <0.0023 Airlock Outside Work Area 55th Floor 54 During 12394 1200 0.0027 Elevator Lobby Outside Work Area 54th Floor Inside 55' During 12395 1200 <0.0023 Airlock Outside Work Area 54th 56 Elevator Lobby Floor During 12396 1200 <0.0023 Outside Work Area Staircase 57 During 12397 1200 <0.0023 Landing to 53rd Floor Outside Work Area Outside Bldg, During 12398 1200 <0.0023 58 Church St. Entrance 59 Field Blank Blank 12399 0 <0.0023

60 Field Blank Blank 12400 0 <0.0023 umit or quanutauon oases 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 analysislreport 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 Testivell Laboratories, Inc.

Deborah McCari - Laboratory Director

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