Registered Private Water Supplies in Northern Ireland with Quarterly Updates

A spatial dataset of registered private water supplies in Northern Ireland, intended for human consumption but not provided by the public utility. The Drinking Water Inspectorate maintains a register of supplies to public, commercial, or multiple private dwellings, updated at least quarterly, with a recent update noted for September 2023. Data is represented as 100m by 100m square polygons randomly placed around each supply location.

Use Cases

• Mapping the distribution of private water supplies based on the spatial polygon layer.
• Monitoring regulatory compliance for water quality based on the register of supplies.
• Assessing public health risks by identifying supplies serving commercial or multiple dwellings.
• Creating dashboards for water supply oversight based on the described analytical suitability.

Strengths

• Includes both current and historically monitored supplies, providing temporal depth.
• Updated at least quarterly, with a stated next update due in December 2023.
• Available in multiple geospatial formats (KML, ESRI SHAPE, GEOJSON) for interoperability.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The 100m by 100m squares are randomly placed around supplies, which may limit precise location analysis.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.

Provenance

Source

Drinking Water Inspectorate (DWI), Northern Ireland.

Collection Method

Maintained as a regulatory register required by The Private Water Supplies Regulations (Northern Ireland) 2017.

Time Range

Includes current and historical monitoring records; specific start date unknown.

Freshness

Updated at least quarterly; most recent update noted as 30 September 2023.

Geography

Northern Ireland.