NYC-WTC_000230933

NYC 9/11 Public Portal Document —..........J.... JI , ........

3U E O TJ^i^^FirstChoiceJorEmirow^^ & Consulting

October 17. 2001

Gateway Plaza Management Corporation 375 South End Avenue New York, New York 10280

Subject: Gateway Plaza Building #300

Gentlemen;

ALC Environmental Incorporated (ALC) has been retained Co 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.

Twelve (12) initial background air samples were collected and analyzed via phase contrast microscopy (PCM) at building 300. Seven (7) samples were analyzed via Transmission Electron Microscopy (TEM). After analysis via TEM, all were below the permissible limits.

Based on EPA Guidelines, we collected six. (6) bulk samples and analyzed them via I Polarized Light Microscopy (PLM) Methodology. Zero fO) 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 U 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,

Thirty (30) 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.

West 30th Street • Hth Floor - New York, New York 10001 • 212.279.1001 « 883.466.3420 • Fax: 212,279.6747 Pfficc: The Bellevue * Suile 600 * 200 5. Broad Street • Philadelphia, PA 19102 • 215.732.9499 • 88S.7S9 8373 • Fax. 215.732.9559 C" lirxirub C h I J J le n « VVi en 1

CITY_21MC100_008873494

NYC-WTC_000230946