work without containment structures. The Contractor shall not begin any Work until he
has verified that the excavation (trench) has been adequately shored and that all
pertinent life safety systems are in place. It is the Contractor's responsibility to select the
means and methods to ensure that the release of asbestos fibers into the environment
does not occur and that the procedures are in compliance with governing regulations.
B. For the removal of Friable Asbestos Materials, the Contractor shall:
1. Construct a remote containment and Decontamination Facility adjacent to the
excavated area and establish negative air pressure as specified herein.
2. Carefully excavate, by hand, a sufficient area around the material to perform the
abatement Work. Any asbestos debris that is present or generated by these
activities shall be promptly wetted and placed into Disposal Bags before
continuing with the Work.
3. Wrap exposed insulation with at least one layer of 6-mil polyethylene sheeting
and seal all seams air-tight using duct tape.
4. If pipe is to be cut and removed in large sections with material intact, divide pipe
into manageable sections and remove insulation at points where pipe is to be cut
using glovebag procedures.
5. Cut pipe at abated points. Carefully remove pipe from the excavation and transfer
into the remote containment. Remove all Asbestos-Containing Material in
accordance with procedures specified herein.
6. Where the friable pipe insulation 1s in good condition and all removal procedures
are performed using glovebag procedures as specified 1n Subsection 3.07
containment shall not be required.
C. For the removal of Concrete Encased Friable Asbestos Material, the Contractor shall:
1. Using a HEPA-filter equipped saw, cut material into manageable sections.
During all cutting activities, keep Asbestos-Containing Materials wet and provide
constant misting of the air surrounding the immediate area. Additionally, provide
localized negative air by positioning HEPA-exhaust unit inlet duct in the
immediate area of the cutting.
2. As each cut 1s completed, wet the exposed ends of the insulation and remove
approximately one inch deep of insulation from the end. Place removed
insulation into a Disposal Bag taking care not to allow removed insulation to fall
to the bottom of the trench. Apply enough quick-setting mortar to the cut end of
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