PCM air sample results chain of custody, 200 Park Avenue

NYC 9/11 Public Portal Document

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LL TESTWELL LABORATORIES, INC. Environmental Laboratory 47 Hudson Street, Ossining, New York 10562. F- NYS ELAP * 11142 NVLAP S 200083-0 AIHA C 100147

PCM AIR SAMPLE RESULTS S Client: Bovis Lend Lease Date Collected: 05/24/02 Date Rec'd (lab): 05/26/02 Project #: MBO-025AB Analysis Date: 05/28/02 Analyst: D. McCar/ Sample Location Millenium Hilton @ WIC 55 Chruch Street Analytical Method: NIOSH 7400 New York, New York Various Floors Sample Condition Acceptable? YES Field Technician T. Chhetry

Sample — Concentration Sample #: Sample Location: 02pCM Volume Type f/cc

Outside Work Area Clean Room of During 14418 1200 <0.0023 303 Remote Personal Decon Outside Work Area Remote Waste During 14419 1200 <0.0023 304 Decon S Outside Work Area 48th Floor Inside During 14420 665 0.0059 305 Airlock Outside Work Area 48th Floor During 14421 665 0.0041 306 Freight Elevator Lobby Outside Work Area 47th Floor Inside During 14422 730 <0.0037 307 Airlock S Outside Work Area 47th Floor 308 During 14423 730 <0.0037 Freight Elevator Lobby Outside Work Area 46th Floor Inside During 14424 1180 0.0027 309 Airlock Outside Work Area 46th Floor During 14425 1180 0.0037 310 Freight Elevator Lobby Outside Work Area 45th Floor Inside During 14426 1180 0.0023 311 Airlock Outside Work Area 45th Floor During 14427 1180 <0.0023 312 Freight Elevator Lobby Outside Work Area 44th Floor Inside During 14428 1140 0.0077 313 Airlock Outside Work Area 44th Fl 314 oor During 14429 1140 0.0084 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 McCart - Laboratory Director

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