Infiltration systems: groundwater risk assessments
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How to assess the risks to groundwater for treated effluent discharges.
Adapted edition
- Document type
- Reference Guide
- Format
- DOCX
- Pages
- 22
- Language
- English
- Version
- 1.0
- Updated
- 2026-09-17
- Category
- Information security
- Licence
- Open Government Licence v3.0
Description
How to assess the risks to groundwater for treated effluent discharges. Consult the original guidance for current legal and operational details.
Contents
- Risk assessments: who carries it out
- When the Environment Agency will do the risk assessment for you
- When you carry out the risk assessment yourself
- Existing permits
- How to apply for a permit
- The Environment Agency's approach to groundwater protection: how it may affect you
- Sewage disposal: systems you must have
- Cesspools, soakage pits and boreholes
- Infiltration systems: location and design requirements
- Infiltration system and drainage field locations
- Domestic or trade effluent
- Hospitals, vets, schools and universities
- Trade effluent
- Risk assessments: information needed
- Assess the quality of the treated effluent
- Substances of concern
Source and licence
Environment Agency
AttributionEnvironment Agency, ‘Infiltration systems: groundwater risk assessments’ (updated 25 November 2020), reused under the Open Government Licence v3.0.
ChangesNeutral text-only adaptation from the official GOV.UK Content API body: headings, paragraphs, ordered and unordered list items and clickable source-link destinations in an appendix preserved. Images, logos, page design, accessible-format request widgets and linked attachments excluded; normalised whitespace, invisible format marks and typography.
Version history
- v1.017/09/2026