NYC 9/11 Public Portal Document
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L TESTWELL LABORATORIES, INC.
Environmental Laboratory
47 Hudson Street, Ossining, New York 10562
ivYs BLAP 011142
NV AP # 200083.0
AIHA 0 100147
PCM AIR SAMPLE RESULTS
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Client: Bovis Lend Lease Date Collected: 05/21/02
Date Rec'd (lab): 05/22/02
Project #: MBO-025AB Analysis Date: 05/22/02
Analyst: A. Sokol
Sample Location Millenium Hilton @ WTC
55 Chruch Street — Analytical Method: NIOSH 7400
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New York, New York
Various Floors Sample Condition Acceptable? YES
Field Technician T. Chhetry
Sample 02PCM Concentration
Sample #: Sample Location:
Type f/cc
VolumeI
Outside Work Area 47th Floor Inside
233 During 14012 1300 0.0038
Airlock
Outside Work Area 47th Floor
234 During 14013 1300 0.0034
Freight Elevator Lobby
Outside Work Area 6th Floor MER
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235 During 14014 1300 0.0023
Inside Airlock
Outside Work Area 6th Floor MER
236 During 14015 1300 0.0032
Freight Elevator Lobby
237 Field Blank Blank 14016 0 N/A
238 Field Blank Blank 14017 0 N/A
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239 Feld Blank Blank 14018 0 N/A
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.
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Deborah McCall - Laboratory Director
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NYC-WTC 000103247
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