NYC 9/11 Public Portal Document
1LL
TESTWELL LABORATORIES, INC.
1 Environmental Laboratory
47 Hudson Street, Ossining, New York 10562
NYSE - 011142
NVLAP :200083-0
ALMA # 100147
PCM AIR SAMPLE RESULTS
Client: Bovis Lend Lease — — Date Collected: 05/17/02
Date Rec'd (lab): 05/20/02
Project #: MBO-025AB Analysis Date: 05/20/02
Analyst: D. McCar/
Sample Location Millenium Hilton @ WTC
55 Chruch Street Analytical Method: NIOSH 7400
New York, New York
S . Various Floors Sample Condition Acceptable? YES
Field Technician T. Chhetry
Sample Concentration
Sample #: Sample Location: 02PCM Volume
Type f/cc
177 Field Blank Blank 13539 0 N/A
178 Field Blank Blank 13540 0 N/A
179 Field Blank Blank 13541 0 N/A
S
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 McCarl - Laboratory Director
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NYC-WTC 000103238
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