Preliminary scope of work document for cleaning 114 Liberty Street,

NYC 9/11 Public Portal Document

December 17, 2002 114 LIBERTY STREET REMOVAL OF DUST, DEBRIS, AND CONTAMINATED MATERIALS

06 TEMPORARY FACILITIES

PART 1 - GENERAL

1.01 DESCRIPTION OF REQUIREMENTS:

A. Provide temporary connection to existing building utilities or provide temporary facilities as required herein or as necessary to carry out the work.

PART 2- PRODUCTS

2.01 MATERIALS AND EQUIPMENT:

A. Provide new or used materials and equipment that are undamaged and in serviceable condition. Provide only materials and equipment that are recognized as being suitable for the intended use, by compliance with appropriate standards.

2.02 SCAFFOLDING:

A. All scaffolding shall be designed and constructed in accordance with OSHA (29 CFR 1926/ 1910), Municipal Building Code, and any other applicable federal, state, and local government regulations. Whenever there is a conflict or overlap of the above references, the most stringent provisions are applicable. All scaffolding and components shall be capable of supporting without failure of a minimum of 4 times the maximum intended load, plus an allowance for impact. All scaffolding and staging must be certified by a licensed professional engineer.

B. Equip rungs of all metal ladders, etc., with an abrasive, non-slip surface.

C. Provide non-skid surface on all scaffold surfaces subject to foot traffic. Scaffold ends and joints shall be sealed with tape to prevent penetration of contaminated dust.

2.03 WATER SERVICE:

A. Temporary Water Service Connection: All connections to the Owner's water system shall include back flow protection. Valves shall be temperature and pressure rated for operation of the temperature and pressures encountered. After completion of use, connections and fittings shall be removed without damage or alteration to existing water piping and equipment. Leaking or dripping fittings/valves shall be promptly repaired and or replaced as required.

B. Water Hoses: Employ new heavy-duty abrasion-resistant hoses with a pressure rating greater than the maximum pressure of the water distribution system to provide water into each work area and to each Decontamination Enclosure Unit. Provide fittings as required for connection to existing wall hydrants or spouts, as well as temporary water heating equipui riL, brwicli piping, showers, shut-off nozzles, and equipment.

26 © AMBIENT GROUP, INC. - 2002

TEMPORARY FACILITIES

NYC-WTC 000155554