Remediation report cover, 30 Warren Street, January 2006

NYC 9/11 Public Portal Document

Environmental Site Characterization — Facade Report Fiterman Hall — 30 West Broadway, New York, NY Airtek Project 05-0867 — January 10, 2006

Interviews with personnel familiar with building operations, renovation project details, and post 9/11 response activities;

Close visual inspection and testing of specific materials and components of the facade systems.

2.0 CHARACTERIZATION COMPONENTS

2.1 Documentation Review

Where previously existing documentation of building structure and condition was available, these documents were reviewed for information pertinent to the subject investigation. Documentation reviewed by the investigation team included the following:

• Limited original as-built drawings • 2000/2001 renovation specs and drawings • Pre-9/11 ACBM Survey Reports — DASNY Consultants • Pre-9/1 I LBP Survey Reports — DASNY Consultants • WTC Characterization Report — Cambridge Horizon Consultants

2.2 Interviews -- Historical Research

Specific personnel with direct knowledge of building operations, building history, pre 9/11 construction/renovation activities, and post- 9/11 site activity were made available to the investigation team. Personnel made available included: -

• BMCC Building Operations Personnel • DASNY/CUNY Pre-9/11 Construction Management Personnel • DASNY/CUNY Post 9/11 Response Management Personnel 2.3 Facade Visual Inspection

A floor-by-floor, façade-by-façade inspection was conducted by the investigation team. The inspection team included USEPA Lead Inspectors, NYC Asbestos Investigators, NYS Asbestos Inspectors experienced in pre-demolition building inspection in general, and in WTC response inspection in particular. All site work conducted as a part of this inspection was conducted in strict accordance with the terms and conditions of both the NYS DOL Variance for this work, and the site HASP.

2.4 Asbestos-Containing Building Material InspeçtIon and Testing

An Asbestos Inspection and Material Survey is. required to facilitate the proposed deconstruction of the Building and to comply with: (1) the New York City Department of Buildings permitting requirements, and (2) the pre-demolition requirements promulgated by the New York City Department of Environmental

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