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

• h. Decontamination units that are attached to tents shall comprise at least a shower room and a clean room, with one curtained doorway separating them, and with a second curtained doorway separating the tent from the shower room.

Remove asbestos containing materials as per the Schedule. No residue shall remain after the work is completed.

j. After the ACM removal and' bagging, the bagged waste shall be HEPA-vacuumed then wet cleaned and transferred into the airlock or into the shower room for double bagging, and thereafter the double-bagged waste shall be transferred outside the airlock or outside the clean room for its final transfer for storage in an enclosed waste container.

k. Upon completion of the abatement, the tent work area shall wet cleaned by using rags, mops or sponges and be lightly encapsulated with clear encapsulant to lockdown residual asbestos.

8.8 Removal: Removal of Asbestos Sash Material shall be performed in accordance with the following procedures:

1. Personal air monitoring shall be performed in compliance with OSHA • standards, 29 CFR 1926.58 (f). At least two (2) of the OSHA representative personal samples collected daily per floor, must achieve a minimum volume of 560 liters.

2. A NYCDEP-certified asbestos handler supervisor shall be on-site at all times during the window sash removal process. The supervisor shall establish and maintain a project log and be responsible for any emergency situations that may occur.

3. Workers performing the work must receive OSHA awareness training and work practices training related to asbestos disturbances and handling or must have a valid NYC DEP asbestos handler certificate.

4. All windows undergoing sash removals shall be regulated to prevent unauthorized visitors and a curtained doorway shall be established at the entrance of each work area.

5. All objects must be moved at least 6 feet away from the vicinity of the windows or covered with I layer of 6-mil plastic.

6. Floor surfaces along the length of the window extending 1 foot on both sides and 4 feet in front, shall be covered with at least I layer of 6-mil plastic and shall be used as a staging area.

7. All surfaces of the window to be removed shall be HEPA vacuumed and wet wiped prior to plasticization of the sash.

Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 51

NYC-WTC 000125629