NYC 9/11 Public Portal Document
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LL TESTWELL LABORATORIES, INC.
Eniironmental Laboratory
47 `Hudson Street, Ossining, New York 10562
NYS ELAP ? 11142
NVLAP 4 200083-0
AIHA 0 100147
PCM AIR SAMPLE RESULTS
Client: Bovis Lend Lease Date Collected: 05/30/02
Date Rec'd (lab): 05/31/02
• Project #: MBO-025AB Analysis Date: 05/31/02
Analyst: D. Agrest
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 Concentration
02PCM Volume
Type f/cc
Outside Work Area 43rd Floor Inside
381 During 14902 1350 0.0022
Airlock
is Outside Work Area 43rd Floor During 14903 1350 0.0027
382
Freight Elevator Lobby
Outside Work Area 42nd Floor Inside During 14904 1350 <0.0020
383
Airlock
Outside Work Area 42nd Floor During 14905 1350 <0.0020
384
Freight Elevator Lobby
• Outside Work Area 41st Floor Inside
385 Airlock During 14906 1350 0.0024
Outside Work Area 41st Floor During 14907 1350 0.0029
386
Freight Elevator Lobby
Outside Work Area 5th Floor Inside
387 During 14908 1350 0.0040
I Airlock
Outside Work Area 5th Floor Freight During 14909 1350 <0.0020
388
Elevator Lobby
389 Field Blank Blank 14910 0 N/A
390 Field Blank Blank 14911 0 N/A
- Limit or quantitation based on volume of air collected and 5.5 f1100 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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