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Last edited 25 Jan 2021
- Made ground: Areas where material is known to have been placed by man on the pre-existing (natural or artificial) land surface (including engineered fill). For more information see: Made ground.
- Infilled ground: Areas where pre-existing (natural or artificial) land surface has been excavated (worked ground) and subsequently partially or wholly backfilled.
- Worked ground: Areas where the pre-existing material (natural or artificial) land surface is known to have been excavated by man.
- Landscaped ground: Areas where the pre-existing land surface (natural or artificial) has been extensively remodelled, but where it is impracticable to delineate separate areas of made ground, worked ground or disturbed ground.
- Disturbed ground: Areas of ill-defined surface disruption associated with surface or near-surface development or collapse. The disturbance is typically complex, dominated by zones of subsidence, and includes areas of worked ground and made ground.
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