136 WILLIAM STREET; 1001188, 77/18

NYC 9/11 Public Portal Document

Exhibit A

New York City Department of Environmental Protection Bureau of Environmental Compliance

Asbestos Control Program

Building Exterior Clean-up

Scope of Work and appropriate regulations, All work performed shall be in compliance with all applicable, relevant, Protection Agency (USEPA), the including but not limited to those of the United States Environmental Administration (OSHA), the New United States Department of Labor Occupational Safety and Health State Department of Environmental York State Department of Labor (NYS DOL), the New York Office (SHPO), the New York City Conservation (NYS DEC), the New York State Historic Preservation (DOH), the New York City Department of Sanitation (DOS), the New York City Department of Health of Environmental Department Landmarks Preservation Commission (NYC LPC), and the New York City Protection (DEP).

Ba round and US EPA performed follow-up site The DEP with assistance from representatives of the NYS DOL The visual assessments disclosed the visits at buildings in the vicinity of the World Trade Center. at the building exteriors. The presence of various amounts of debris with various dispersal patterns perimeter of the roofs, at the base of majority of buildings bad isolated areas of debris specifically at the surfaces on some of the building parapet walls, and in gutters. Debris was also visible at horizontal while the facades at the rear facades. For some buildings, building facades facing the street were cleaned remained dirty. impact of September 11, 2001. The debris The observed debris was characteristic of the debris from the follow-up visits, samples of the appears to have reformed into a dense mass (caked). During the DEP identified above was also evident in the debris were collected from various roofs. The uneven dispersal indicated that some of the debris was sample collection. Samples collected from various buildings the most stringent assessment and asbestos-containing material (ACM). Based on these results and DOL licensed contractors with DEP evaluation, this material may be ACM and shall be cleaned by NYS and NYSDOL certified workers.

Purpose A NYS DOL licensed asbestos contractor with DEP and NYSDOL certified workers shall perform the of the WTC. The scope clean-up of building roofs, setbacks, and/or building facades within the vicinity activities shall consist of collection of debris of work for the clean-up activities is attached. The clean-up debris. and wet cleaning/HEPA vacuuming until the surfaces are clean of visible

Contract Term and Specifications DEP commencement date. The contract shall be in force for 120 consecutive calendar days from the within 72 hours of the Services shall be directed by the DEP. Contractors shall be prepared to mobilize a minimum of five with contract award. The DEP expects contractors to provide four to five crewssimultaneously. cleaned handlers per day at each of the areas. Multiple building roofs shall be

Work shall not be performed at any building found to be structurally unsound. Page 1 05/03/02

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