Environment Agency Permits
Expert help and advice to ensure you get the permit you need
Natural Resources Wales Permits
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More information about registration:
You need to register your Septic Tank and Sewage Treatment Plant with Natural Resources Wales if:
- it is 5 cubic metres per day or less and discharges to surface water
- it is 2 cubic metres per day or less and discharges to ground
Discharges from sewage treatment systems that started before April 2010 are designated as existing discharges and must meet design standards at the time of installation.
Discharges from sewage treatment systems that started since April 2010 are designated as new discharges and must meet specific standards.
For new discharges, if your discharge is within 30 metres of a public sewer, you should connect to that.
Both existing and new discharges must be:
- to the ground via a septic tank and infiltration system/drainage field;
- or to surface water via a sewage treatment plant
Discharges which are too close to sensitive receptors would require an application for an environmental permit.
Discharge to surface waters is required to be treated first by a sewage treatment plant.
Discharge to ground must be via a septic tank and infiltration system/drainage field (soakaway).
You will need a permit if the discharge to ground is
- within 50 metres of a well or borehole that is used to supply water
- or if it falls within a groundwater Source Protection Zone (SPZ1)
