NYC 9/11 Public Portal Document
Asbestos Abatement Technical Specifications
For 130 Cedar Street, New York, NY
b. Excess foam or other viscous liquid.
15. If the work area fails visual inspection, it shall undergo another wet
cleaning and/or HEPA vacuuming until it passes the visual inspection.
16. Daily continuous air sampling inside the work area and in all spaces
where egress from the work area is through the structure itself, shall
be conducted in accordance with sections 1-41(a), 1-41 (b) and 1-42
of Title 15, Chapter 1.
17. If any air sample(s) within the work area exceed 0.01 f/cc or the
background level, whichever is greater, then work shall stop and
methods altered to reduce airborne fiber concentrations to the afore-
mentioned level.
18. Personal air monitoring data shall be submitted to the NYC DEP within
one week after the completion of the project if requested.
8.2. Floor Tiles and Mastic Removal: shall be accomplished as described in this
Specification and the NYCDEP Applicable Variance FV, "Procedures for Use
of Foam or Similar Viscous Liquid in Removal of Potentially Friable Asbestos
Floor Tile (VAT)"
1. The electric power and HVAC system shall be shut down and isolated.
2. All movable objects shall be removed from the work area.
3. The work area shall be sealed off with isolation barriers.
4. All penetrations in and along the floor shall be sealed.
5. Baseboards and wall surfaces up to a minimum height of four (4) feet
above the floor shall be covered with a layer of 6-mil polyethylene.
6. Negative air pressure ventilation shall be provided to allow make- up
air into the work area. Air outlets from the work area shall be at or near
the floor level.
7. Prior to actual removal, the floor tiles and mastic shall be blanketed
and wetted with a minimum 1-3 inch coating of the acceptable foam or
viscous liquid that shall be maintained for the duration of the removal
until the material is bagged.
8. Remove floor tile and all underlying layers using a flat hoe or scraper.
Remove adhesive backing using a mastic removal solvent approved
for use and compatibility by the manufacturer(s) of flooring
components. Do not grind or sand floor.
9. Completely remove floor tile and adhesive backing using appropriate
• tools and materials. As material Is removed, wrap it in two layers of
plastic and place it in labeled containers for transport.
Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 44
NYC-WTC 000125622
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