Dŵr Cymru Cyfyngedig - Tremeirchion Wastewater Treatment Works, Tremeirchion, Denbighshire, Ll17 0AY

We’ve received an application to vary an environmental permit from Dŵr Cymru Cyfyngedig

Substantial variation to an environmental permit under the Environmental Permitting (England and Wales) Regulations 2016

Application number: PAN-030206
Regulated facility type: Waste Water Treatment Works (WwTW)
Regulated facility location: Tremeirchion Wastewater Treatment Works, Tremeirchion, Denbighshire, Ll17 0AY
NGR discharge point: SJ 06780 72604
Receiving environment: Nant Pen-Isa’r-Waen
Effluent type: Secondary treated effluent
Volume: 57 cubic metre per day

You can see the application documents free of charge, from our online public register. You can search for the documents using the application details, above. Or you can request a copy of the information from us. This may take time to process and there could be a charge.

If you have any comments send these by 11 May 2026

Email: permittingconsultations@naturalresourceswales.gov.uk

Or write to:

Permitting Service
Natural Resources Wales
Welsh Government Offices
Cathays Park
Cardiff
CF10 3NQ

We must decide whether to grant or refuse the application. If we grant it, we must decide what conditions to include in the permit. You can find information about how we make decisions in our Public Participation Statement.