Page 77 - BCCGA Best Practices Version 3.0

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British Columbia Common Ground Alliance

PRACTICE DESCRIPTION:

The ground disturber must consider various

geological conditions and weather-related factors when excavating within a

tolerance zone. Based on these variables, the ground disturber may wish to

consider using these methods: hand digging, wherever practical;

hydroexcavation; and pneumatic hand tools.

In general, methods that are safe, prudent, and non-invasive are low-risk

practices for manually exposing a facility. Other considerations include the use

of mechanical methods with the approval of the facility owner or operator and

other technical methods that may be in development.

Hand digging and non-invasive methods are not required for pavement

removal. Some guidelines, however, specifically allow the use of power

excavating equipment for excavating in the area of utilities. This type of

equipment can be used for the removal of pavement and sidewalks, but not

curbs nor base materials.

REFERENCE:

Existing excavating guidelines as set by federal and provincial

authorities and practiced by various utility owners and operators.

4-20

UNIDENTIFIED FACILITIES

PRACTICE STATEMENT:

Upon the discovery of an inaccurately marked or

unidentified underground facility, the ground disturber notifies the facility

owner or operator either directly or through the one-call centre.

PRACTICE DESCRIPTION:

All excavating activity in the vicinity of a facility

must stop when a ground disturber finds an inaccurately marked or

unidentified facility. The ground disturber must then notify the facility owner or

operator. Following this notification, the ground disturber may only proceed

with the excavation if the work can be done without damaging the facility. If the

excavation is to continue, a non-invasive excavation practice should be

employed (i.e. hydroexcavation and/or hand digging). In all cases, the ground

disturber must protect the facilities from damage and avoid damaging and

interfering with the other facilities.

REFERENCE:

Existing practices by diligent and responsible ground disturbers.