Asbestos abatement technical specifications, 130 Cedar Street, July 2004

NYC 9/11 Public Portal Document

Asbestos Abatement Technical Specifications For 130 Cedar Street, New York, NY asbestos fiber concentrations inside and outside the work areas of a building • prior to the start of abatement activities.

2.22 Clean Room: An uncontaminated area or room that is part of the worker decontamination enclosure with provisions for storage of workers' street clothes and protective equipment.

2.23 Clearance Air Monitoring: The employment of aggressive sampling techniques using the volume of air collected to determine the airborne concentrations of residual fibers. It is to be performed as the final abatement activity.

2.24 Contractor: The State, any political sub-division of the State, a public authority or any other governmental agency or instrumentality thereof, self employed person, company, unincorporated association, firm, partnership or corporation and any owner or operator thereof, which engages in an asbestos abatement project.

2.25 Curtained Doorway: A device that consists of at least three overlapping sheets of plastic over an existing or temporarily framed doorway. One (1) sheet shall be secured at the top and left side, the second sheet at the top and right side, and the third sheet at the top and left side. All sheets shall have weight attached to the bottom to insure that the sheets hang straight and maintain a seal over the doorway when not in use.

2.26 Decontamination Enclosure System (DES): A series of connected rooms, separated from the work area and from each other by air locks and used for the decontamination of workers, materials and equipment.

2.27 Demolition: The dismantling or razing of a building, including all operations incidental thereto (except for asbestos abatement activities for which a demolition permit from the New York City Building Departments is required).

2.28 Disturb: To alter or change, such as but not limited to the removal, encapsulation, enclosure or repair of ACM.

2.29 Encapsulant (sealant) or Encapsulating Agent: A liquid material which can be applied to an ACM and which temporarily controls the possible release of asbestos fibers from the material by creating a membrane over the surface (bridging encapsulation) or by penetrating into the material and binding its components together (penetrating encapsulant).

2.30 Encapsulation: The coating or spraying of asbestos materials with a sealant/encapsulating agent.

2.31 Enclosure: The construction of air tight walls and a ceiling between the asbestos material and the facility environment, or around surfaces coated with asbestos materials, or any appropriate and approved procedure that prevents the release of asbestos materials.

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Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 10

NYC-WTC 000125588