2022 Manitoba Workplace Safety and Health Act and Regulation

Underground facilities
26.6(1) Before any excavation work begins, an employer must
(a) give notice of the proposed excavation to the owners of
underground facilities, such as gas, oil, steam, water, sewer,
communication and electrical systems, in the area where the
work is to be done;
(b) ensure that the owner of the underground facilities has
conspicuously marked the location of the facilities; and
(c) obtain from the owner of the underground facilities any
relevant information, instructions and documents that the
owner may provide respecting the facilities and precautions to
be taken when excavating.
26.6(2) An employer must keep the information, instructions and documents
received from the owner under clause (1)(c) at the excavation site.
26.6(3) If an underground facility in the area of an excavation is likely to be
exposed by excavation work, an employer must ensure that adequate
support and protection is provided for the facility in accordance with
the instructions of the owner of the facility.
26.6(4) If there is inadvertent exposure of, contact with or damage to an
underground pipe, cable or conduit or any other underground facility
when excavation work is performed, an employer must
(a) immediately evacuate all workers from the excavation site until
any hazard or unsafe condition that arises or may arise has been
identified and remedied; and
(b) immediately notify the owner of the pipe, cable, conduit or
other underground facility.
HAZARDS
Flooding risks
26.7
When flooding may occur in an excavation, an employer must ensure
that no worker enters the excavation unless

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Workplace Safety And Health Regulation
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(a) the worker is equipped with a full body harness attached to a
lifeline that meets the requirements of Part 14 (Fall Protection);
(b) the worker is in direct communication with the person who is
required to be located on the surface of the excavation under
subsection 26.5(2); and
(c) the worker’s safety equipment is rigged so that the worker can
be immediately removed from the excavation if a hazardous
situation occurs.