document Asbestos/Demolition Decision Tree (1994);
state and local requirements; and Department of Army
Memorandum ENVR-EP, subject: "Policy guidance on
interpretation of revised EPA asbestos rule
affecting demolition and renovation of buildings"
dated 22 Jan 1992. For application on multiple
building demolition or siding removal, pilot tests
to determine feasibility, practicality, and
compliance are recommended.
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When removing cementitious asbestos-containing siding, shingles or transite
panels the Contractor shall use the following work practices shown in
RESPONSE ACTION DETAIL SHEET [81] [82] [83]. Intentionally cutting,
abrading or breaking is prohibited. Each panel or shingle shall be sprayed
with amended water prior to removal. Nails shall be cut with flat, sharp
instruments. Unwrapped or unbagged panels or shingles shall be immediately
lowered to the ground via covered dust-tight chute, crane or hoist, or
placed in an impervious waste bag or wrapped in plastic sheeting and
lowered to the ground no later than the end of the work shift.
3.6.7.4
Gaskets
Gaskets shall be thoroughly wetted with amended water prior to removal and
immediately placed in a disposal container. If a gasket is visibly
deteriorated and unlikely to be removed intact, removal shall be undertaken
within a glovebag. Any scraping to remove residue shall be performed wet.
3.6.8
Specific Control Methods for Class III Work
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NOTE: Repair and maintenance is considered Class
III work if it involves less than 1 glovebag of
material, regardless of the time it takes to do the
job. If the job involves more than 1 glovebag of
TSI or surfacing material then it is a class I job.
If the job involves more than 1 bag of other ACM
then it is a Class II job.
Taking bulk samples during an asbestos survey is a
Class III operation, and, as in all class III
operations, a respirator is required when there is
no negative exposure assessment.
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Class III asbestos work shall be conducted using engineering and work
practice controls which minimize the exposure to employees performing the
asbestos work. The work shall be performed using wet methods and, to the
extent feasible, using local exhaust. The Contractor shall use impermeable
drop cloths and shall isolate the operation, using mini-enclosures or
glovebag systems, where the disturbance involves drilling, cutting,
abrading, sanding, chipping, breaking, or sawing of TSI or surfacing
material.
3.6.9
Specific Control Methods for Class IV Work
Class IV jobs shall be conducted using wet methods and HEPA vacuums.
Employees cleaning up debris and waste in a regulated area where
respirators are required shall wear the selected respirators.
SECTION 13280A
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