A useful utility network cadastre is not a map made of lines and points. It is a governed inventory in which every asset has a stable identifier, reviewable geometry, minimum attributes, operational status, observation date and relationships to other elements. Its purpose is to let maintenance, expansion, incident response and planning use the same source while clearly separating verified facts from items that still require field confirmation.
The decision this guide supports
The first decision is which operational processes the inventory must support. A water network may require pipes, valves, fittings, chambers and connections, while another operator may begin with fewer classes. Colombia’s official RAS material published by MinVivienda is relevant to water and sanitation, but it does not replace each provider’s specific operating model.
For a water utility, the boundary may cover mains, valves, hydrants, chambers, service connections and inspection points linked to operating zones. The minimum record changes with the use case: field crews need access, condition and manoeuvre data; planning needs capacity, material, age and criticality; incident response needs events linked to the affected section. Define which system owns the master identifier, how surveys enter the register and who approves commissioning or retirement. The deliverable is more than a layer: it includes an object catalogue, relationship rules, change history and a maintenance procedure for the period after the initial survey.
Recommended workflow
- Agree. Define scope, owners and decisions that will consume the data before capturing geometry.
- Structure. Design classes, identifiers, domains and relationships without copying fields nobody will maintain.
- Check. Align coordinate reference, expected accuracy and capture method with the intended use.
- Document. Review connectivity, duplicates, crossings, dangling ends and geometry-to-attribute consistency.
- Operate. Publish changes through a workflow with author, date, evidence and an acceptance rule.
Minimum controls before publishing or delivery
A useful review combines automated checks with expert judgement. At minimum, record:
- unique persistent identifiers.
- capture date and method.
- controlled domains for material, diameter and status.
- verifiable relationships between segments and fittings.
Limits that must remain visible
This inventory represents assets and networks; it does not replace multipurpose parcel cadastre or prove land rights. It must not be confused with billing data either. A connected geometry can still be inaccurate, and a precise coordinate can describe an outdated asset. Quality therefore needs to be stated by dimension and date instead of using a generic “validated” label.
To apply this method to a concrete project, review the GeoSAT sector service and compare its dependencies with the related service. These links serve different intents: this guide explains the process, while the service pages define scope, evidence and the appropriate commercial next step.
