Groundwater Housing Risk Factors for the Greater Metropolitan Region

Greater Metropolitan Region water sharing plan area contains a static risk assessment for building projects as of September 2025. The dataset includes input layers for acid sulphate soils, contaminated sites, groundwater works, water features, dependent ecosystems, and groundwater systems, combined into an overall risk layer. It was created by Spatial Services (DCS) to support the Housing Approvals Reform Action Plan.

Use Cases

• Assess site-specific groundwater contamination risk based on the contaminated sites risk layer
• Identify potential impacts on groundwater dependent ecosystems for environmental protection planning
• Evaluate overall development feasibility using the aggregated Overall Risk layer
• Visualize spatial distribution of acid sulphate soils risk for preliminary site screening

Strengths

• Includes six distinct risk factor layers (acid sulphate soils, contaminated sites, groundwater works, water features, dependent ecosystems, groundwater systems)
• Provides a synthesized Overall Risk layer aggregating all subordinate factors
• Dataset is specific to the Greater Metropolitan Region water sharing plan area

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download
• Column-level documentation is absent; field semantics must be inferred after download
• Data is a static snapshot as of September 2025 and may not reflect current conditions

Provenance

Source

Spatial Services (DCS) via data_gov_au

Collection Method

Analysis of groundwater-related factors compiled as input layers, method detailed in accompanying report.

Time Range

Snapshot as of September 2025

Freshness

Static snapshot as of September 2025; last metadata update 2026-05-23.

Geography

Greater Metropolitan Region water sharing plan area, New South Wales, Australia