NYC 9/11 Public Portal Document
S
LL TESTWELL LABORATORIES, INC.
Environmental Laboratory
47 Hudson Street, Ossining, New York 10562
s # 11142
NVLAP a 200083-0
AIMA s 100147
PCM AIR SAMPLE RESULTS
Client: Bovis Lend Lease Date Collected: 05/10/02
Date Rec'd (lab): 05/13/02
Project #: MBO-025AB Analysis Date: 05/13/02
Analyst: D. Agrest
Sample Location Millenium Hilton @ WTC
a, 55 Chruch Street Analytical NIOSH 7400
New York, New York
Various Floors Sample Condition Acceptable? YES
Field Technician T. Chhetry
Sample #: Sample Location: Sample — Concentration
Type 02PCM
Volume f/cc
Outside Work Area Clean Room of
13 During 12254 1200 - 0.0063
Personal Decon
14 Outside Work Area Waste Decon During 12255 1200 0.0039
L Outside Work Area 56th Floor Inside During 12256 1200 0.0045
15
Airlock
Outside Work Area 56th
16 Floor During 12257 1200 0.0065
Elevator Lobby
Outside Work Area 55th Floor
17 Inside During 12258 1200 0.0053
Airlock
Outside Work Area 55th
18 Floor During 12259 1200 0.0061
Elevator Lobby
Outside Work Area 54th Floor Inside
19 Airlock During 12260 1200 0.0055
Outside Work Area 54th
20 Floor During 12261 1200 0.0041
Elevator Lobby
Outside Work Area Staircase During 12262 1200 0.0027
21
Landing to 53rd Floor
Outside Work Area Outside Bldg, During 12263 1200 <0.0023
22
Rector St. side Entrance
23 Field Blank Blank 12264 0 <0.0023
24 Field Blank Blank 12265 0 <0.0023
- 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 000103208
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