NYC-WTC_000231403

NYC 9/11 Public Portal Document I:-;.

J- 0 fl * . _ £o The First Choice Jor Environmental Testing & Consulting ft s October 16, 2001

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

■I ■ Subject; Gateway Plaza Building #400

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 11 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 at building 400. ■

Twelve (12) samples were analyzed via phase contrast microscopy (PCM) and two (2) were analyzed via Transmission Electron Microscopy (TEM). AU were below the permissible limits,

Based on EPA Guidelines, we collected one hundred fifty-eight (158) bulk samples and analyzed them via Polarized Light Microscopy (PLM) Methodology, One (1) sample collected from one apartment was found to be slightly above the regulatory limits of 1%. Zero (0) were found to be above the regulatory limits upon further analysis at a second laboratory for quality control purposes, However, certified asbestos abatement contractors hired independently by the owner, were used to clean the specific apartment and the areas were cleared by ALC via TEM air sampling. All air samples were found to be well below the permissible limits and the tenants where this cleaning took place have been notified of the clearance.

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 E 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.

[esi JOth Street • 11th Floor • New York, New York 10001 • 212.279.1001 • 888.466.3620 • Fax: 212.279.6747 The Bellevue • Suite 600 • 200 S. Broad Streel • Philadelphia, P.A KL02 * 215.732.94Q9 • B88.789.8378 • Fax: 215.732.9559 I wwvi.ALCEnvifonmentai.com

■ _ 03569 . CITY_21MC100_008879985

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