dataset · United Kingdom

Infiltration SuDS (Sustainable Drainage Systems) Map version 2

The BGS Infiltration SuDS Map is a support tool designed to support decisions on the suitability of the subsurface for infiltration SuDS; decisions on the type of infiltration SuDS that will likely be appropriate; assessments of SuDS planning applications to determine whether the necessary factors have been considered; and decisions on whether infiltration SuDS could be appropriate where a non-infiltrating SuDS technique has been proposed. This data product is not a replacement for a soakaway te

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Source details

Licence: ["The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in an

Evidence quality: 43.7

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified: Groundwater protection summary · Infiltration constraints summary · Ground stability summary · Drainage summary · Groundwater source protection zones · Presence of artificial ground · Predominant groundwater flow mechanism · Landslide constraints · Artificial ground constraints · Shallow groundwater constraints · Shallow mining (non-coal) constraints · Soluble rock constraints · Collapsible ground · Compressible ground · Landslides · Running sands · Shallow mining · Soluble rocks · Shrink-swell · Bedrock permeability · Depth to water table · Geological indicators of flooding · Superficial deposit permeability · Superficial deposit thickness
Coverage docs-verified: Bounding box: latitude 49.8165 to 60.7850, longitude -7.4829 to 2.6955
Resolution docs-verified: 50 m ground resolution (GIS vectorised 50 m grids, 1:50,000 scale)
Update frequency docs-verified: Not planned (no scheduled updates)
Access docs-verified: Downloadable via data.gov.uk with no authentication listed. Reuse restricted: BGS/NERC copyright, no reproduction or transmission without prior permission of the copyright holder.

Useful for

Use cases llm-inferred: Desk-based infiltration SuDS feasibility scoping for a site, before soakaway testing · Checking whether planning applications for SuDS have considered subsurface infiltration factors · Testing whether infiltration SuDS may be viable where a non-infiltrating SuDS has been proposed · Strategic ground-suitability screening across a development area or catchment using the Summary layers
Audience llm-inferred: Drainage engineers · Flood consultants · Geotechnical engineers · Planners · Hydrologists · GIS analysts

Limitations

Constraints docs-verified: Not a replacement for a soakaway test or site investigation · Summary package gives no information about subsurface properties and is intended only for strategic planning · No scheduled updates (update frequency not planned) · Reuse restricted by BGS/NERC copyright · Disclaimer: BGS/NERC give no warranty as to quality or accuracy, and accept no liability

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.