Define the dig area and request locates before digging.
V15 — home system
Underground utilities before digging
Prepare excavation, piles, fences, trees, drains or pools by locating buried infrastructure and work zones.
Checked: 2026-08-21
Markings, tolerance zones and excavation methods near utilities must be respected.
Unlocated utility, exposed/damaged line or mechanized excavation in an uncertain zone: stop.
Useful tools / data
- Marking paint/stakes per instructions
- Dimensioned excavation plan
- Appropriate hand shovel
What the professional checks
- Interpret locate plans
- Define approach/excavation method
- Coordinate utility owners if conflicts
Sources and limits
Exact requirements depend on jurisdiction, building and scope. Triage prepares the decision; it does not replace inspection, permits, calculations or regulated trades.
Explore: Specialized systems to cross-check
Specialized systems to cross-check
This section completes gas, soil, water, fire, climate and structural interfaces.
Explore: Advanced systems and special cases
Advanced systems and special cases
Checks that change sequencing, risk or which professionals must be coordinated.
Explore: Hidden systems and critical interfaces
Hidden systems and critical interfaces
These checks target costly problems that often appear only after opening assemblies, conversions or changes of use.