Register of Private Water Supplies in Northern Ireland (2021)

A spatial dataset of 100m by 100m squares representing registered private water supplies in Northern Ireland. The register is maintained by the Drinking Water Inspectorate (DWI) under the Private Water Supplies Regulations (Northern Ireland) 2017 and includes supplies to public, commercial, or multiple private dwellings. This dataset was created on 6th January 2021 and superseded on 30th March 2021.

Use Cases

• Map the distribution of private water supplies based on the spatial polygon layer.
• Analyze compliance and monitoring coverage for water safety regulations.
• Identify areas reliant on private supplies for public health planning.
• Visualize historical and current private water supply locations for dashboards.

Strengths

• Data is explicitly tied to a legal register (Private Water Supplies Regulations (Northern Ireland) 2017).
• Includes both currently and historically monitored supplies.
• Available in multiple geospatial formats (KML, ESRI SHAPE, GEOJSON).
• Published under an open license (OGL-UK-3.0).

Limitations

• Dataset was superseded shortly after creation (superseded on 30th March 2021).
• Row count and specific column-level documentation are unknown.
• The 100m square representation is a random buffer, not the exact supply location.

Provenance

Source

Government Digital Service, likely via the Drinking Water Inspectorate (DWI).

Collection Method

Register compiled for regulatory compliance.

Time Range

Data reflects the register state as of January 2021.

Freshness

Dataset is historical; last update date is unknown and it was superseded in March 2021.

Geography

Northern Ireland