PCM air sample results chain of custody, 200 Park Avenue

NYC 9/11 Public Portal Document

• TESTWELL LABORATORIES, INC. Environmental Laboratory NYSELAP811142 47 Hudson Street, Ossining, New York 10562 NVLAP a 200083.0 AIHA # 100147

PCM AIR SAMPLE RESULTS Client: Bovis Lend Lease Date Collected: 05/20/02 Date Rec'd (lab): 05/22/02 Project #: MBO-025AB Analysis Date: 05/22/02 Analyst: J. Yarusso 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 02PCM Volume Concentration • [ Type f/cc

Outside Work Area Clean Room During 13847 1200 0.0043 180 Remote Personal Decon Outside Work Area Remote Waste During 13848 1200 0.0069 181 Decon Outside Work Area 56th Floor Inside During 13849 1200 0.0119 182 Airlock Outside Work Area 56th Floor During 13850 1200 0.0057 183 Freight Elevator Lobby Outside Work Area 50th Floor Inside During 13851 1195 0.0055 184 Airlock Outside Work Area 50th Floor During 13852 1195 0.0049 185 Freight Elevator Lobby Outside Work Area 49th Floor Inside During 13853 1155 0.0025 186 Airlock Outside Work Area 49th 187 Floor During 13854 1155 0.0064 Freight Elevator Lobby Outside Work Area 48th Floor Inside During 13855 1115 0.0034 188 Airlock Outside Work Area 48th Floor During 13856 1115 0.0070 189 Freight Elevator Lobby Outside Work Area 47th Floor Inside 190 During 13857 1100 0.0107 Airlock Outside Work Area 47th 191 Floor During 13858 1100 0.0071 Freight Elevator Lobby - Limit or quanniauon oaseo 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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