A water spray process system may be used for removal of ACM and PACM from cold line piping if, employees carrying out such process have completed a 40-hour separate training course in its use, in addition to training required for employees performing Class I work. The system shall meet the following specifications and shall be performed by employees using the following work practices.
Piping shall be surrounded on 3 sides by rigid framing,
A 360 degree water spray, delivered through nozzles supplied by a high pressure separate water line, shall be formed around the piping.
The spray shall collide to form a fine aerosol which provides a liquid barrier between workers and the ACM and PACM.
The system shall be run for at least 10 minutes before removal begins.
All removal shall take place within the water barrier.
The system shall be operated by at least three persons, one of whom shall not perform removal, but shall check equipment, and ensure proper operation of the system.
After removal, the ACM and PACM shall be bagged while still inside the water barrier.