Specifications include, but are not limited to: asbestos abatement of pipe insulation; replacement of existing chilled and hot water piping, fittings, and valves; installation of new chilled water piping, fittings, and valves; piping insulation; structural work associated with leaks, tunnel penetrations, and access; electrical and lighting; gas piping; hot water heaters, telecom cable trays; ventilation fans; sump pumps; and signage. Key elements of work include, but are not limited to: a. Modifications to chilled and hot water piping including abatement and new insulation b. Structural work associated with piping improvements and tunnel water damage c. Structural work associated with tunnel access and safety d. Replacement and addition of ventilation fans e. Replacement of lighting and addition of receptacles