Document ID NYC-WTC_000127729, Phase 1 Decontamination Plan

NYC 9/11 Public Portal Document

Mr Rajappan Radhakrishnan — NYC DEP 133-135 Greenwich Street and 21-23 Thames Street Airtek Project 05-0701— June 9, 2005

Contractor will maintain the project site, adjacent sidewalks and streets free from debris and garbage, including daily sweeping of sidewalks for the duration of contractor's work.

Contractor will provide and maintain a plywood fence along Greenwich and Thames Streets with gates along the front and side of the property. All work to be coordinated with NYC DOB temporary fence permit. Upon completion of the Contractor's work, the fence and gates will be left in an acceptable condition, with gates in locations approved by, and coordinated with, the General Contractor. General Contractor will obtain fence permit(s) and maintain permit(s) for the duration of the project. Fence will comply with NYC Department of Building requirements and will be constructed of minimum 5/8" exterior grade plywood (good one side) on two by four frames. Fence will be painted Dark Blue and will have "Post No Bills" painted a maximum of 10 feet on center. Fence will be constructed with wood or metal posts at regular intervals. Post will be sunk into the ground as required to make them free standing without bracing or outriggers. Fence will be constructed such that sections of it are easily removable without disturbing remaining sections. Do not create blind spots on sidewalk.

Site Work:

Contractor will perform proper dust control during any demolition or removal • work.

The Contractor will comply with all federal and local laws regarding noise control.

All work will be done by appropriately qualified labor. The Contractor will be responsible for employing qualified tradesmen for the duration of Contractor's contract work on this project.

All work is to be performed in accordance with the latest standards as established by OSHA.

Demolition of a 2-story brick structure, and 5-story brick structure: a. All existing interior garbage, furniture, fixtures, equipment and surfacing materials (plaster/wallboard/ceiling systems, etc.) will have been removed under Phase III above. b. Remove and dispose of existing brick party wall attached to the South side of 120 Cedar Street Work includes patching holes after demolition. Work does not include waterproofing. c. Complete demolition of above grade structures and ground level framing. Existing foundation wall, vaults and sidewalk will remain. d. Remaining exposed cellar slab will be left free from demolition debris. • e. All utilities serving the buildings will be disconnected as required before any removal and/or demolition is started.

NYC-WTC 000127735