NYC 9/11 Public Portal Document
Ag
ENVIRONMENTAL
INCORPORATED The First Choice for Environmental Testing & Consulting
October 22. 2001
Gateway Plaza Management Corporation
375 South End Avenue
New York, New York 10280
Subject: Gateway Plaza Building #100
0 Gentlemen:
ALC Environmental Incorporated (ALC) has been retained to perform bulk sampling,
visual assessments & air monitoring according to the EPA Protocol to determine the
presence of asbestos at the above referenced project. Every apartment in the building
was assessed by our inspectors for dust and debris. Any area where visible dust and
debris was found, ALC's inspectors took a bulk sample, which was then sent to a third
party independent laboratory for analysis. In most cases there was insufficient debris to
sample and a visual assessment only was performed. Additionally, air sampling was
performed using TEM Methodology on every floor in the building.
Eight (8) initial background air samples were collected and analyzed at building 100.
Eight (8) were analyzed via phase contrast microscopy (PCM) and five (5) were analyzed
via transmission electron microscopy (TEM). After analysis via TEM. all were below
the permissible limits.
Based on EPA Guidelines, we collected forty (40) bulk samples and analyzed them via
Polarized Light Microscopy (PLM) Methodology. Zero 0 were found to be above the
regulatory limits
ALC then collected air samples on every floor in the building. The air sampling and
analysis was done utilizing applicable Federal, State and City Regulations pertaining to
asbestos to include Federal OSHA (29 CFR 1926.58) EPA NESHAPS (40 CFR PART
61), AND TSCA TITLE II AHERA/ASHARA (40 CFR PART 763) Asbestos
Regulations; the New York State Department of Labor Industrial Code Rule 56 and the
New York City Department of Environmental Protection Title 15 Asbestos Regulations.
Twenty-nine (29) air samples were collected and analyzed via TEM Methodology. The
results indicated that the living areas achieved the acceptance criteria below <70
structures per mm2 set by the above regulations.
115 West 30th Street • 1 Rh Floor • New York, New York 10001 • 212.279.1001 • 888.466.3620 • Fax: 212.279.6747
Home Office: The Bellevue • Suite 600 • 200 S. Broad Street • Philadelphia, PA 19102 • 215.732.9499 • 888 78Q 8378 • Fax: 215.732.9559
www.ALCEnvironmental. corn
NYC-WTC 000121040
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