Page 96 - CCGA Best Practices Version English

Appendix A: Glossary of Terms & Definitions

– Abandoned: with reference to underground infrastructure, taken out of
service permanently but left in place.

– Accurate or Accuracy: the closeness of results of observations,
calculations, or estimates compared to the true value.

– Alternate Locate Agreement (ALA): A contractual agreement between
a facility owner and an excavator that allows the excavator to proceed with
their excavation work without receiving a traditional field locate.

– American Society of Civil Engineers (ASCE).

– Attributes: numbers, abbreviations, and words that describe the physical
and spatial properties of the underground utility infrastructure used to
provide an aesthetic and useful map display.

– As-built: A representation of the as-constructed situation showing the
position and features of components as actually put in place.

– Backfill: The act of filling the void created by excavating or the material
used to fill the void.
– Canadian Radio-television & Telecommunication Commission
(CRTC)
– Canadian Standards Association (CSA)

– Cathodic Protection: The process of arresting corrosion on a buried or
submerged structure by electrically reversing the natural chemical reaction.
This includes, but is not limited to, installation of a sacrificial anode bed,
use of a rectifier based system, or any combination of these or other
similar systems. Wiring is installed between the buried or submerged
structure and all anodes and rectifiers; wiring is also installed to test
stations which are used to measure the effectiveness of the cathodic
protection system.

– Commission for Environmental Cooperation (CEC)

– Compliance: Adherence to acts and regulations.
– Control Survey Monuments (horizontal): Existing survey monuments
with published coordinates that are geographically referenced with high
accuracy.
– Control Survey Monuments (vertical): Existing survey monuments,
commonly referred to as benchmarks, with published elevations that are
accurately referenced to a known vertical datum (mathematical reference
plane).

– Damage: Any impact, stress and/or exposure that results in the need
to repair an underground facility due to a weakening or the partial or
complete destruction of the facility, including, but not limited to, the
protective coating, lateral support, cathodic protection or the housing for
the line, device or facility.

Canadian Common Ground Alliance
Best Practices Version 3.0 – October 2018
85