Wastewater plants in Cymru / Wales

120 plants indexed. Showing 28 matching current filters.

28 plants matching filters

LLANNANT WWTW LLANNANT ROAD SWANSEA STW

Gorseinon, Cymru / Wales

LLANNANT WWTW is a wastewater treatment plant serving Gorseinon, Swansea, Wales, UK. It serves a population of 12,450 and operates under the EU Urban Waste Water Treatment Directive.

Not Reported 12,450 Medium

COLWYN BAY _ LLANDUDNO STW

Penrhyn-Side, Cymru / Wales

Colwyn Bay & Llandudno STW is a wastewater treatment plant serving approximately 80,000 people in Penrhyn-Side, Wales. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.

Not Reported 80,187 Medium

TREBORTH BANGOR STW

Llanfairpwllgwyngyll, Cymru / Wales

Treborth Bangor STW serves Llanfairpwllgwyngyll, Wales, treating wastewater for approximately 24,190 people. The plant operates under UK regulations and discharges into the Menai Strait, which connects to the Irish Sea.

Not Reported 24,190 Medium

RHYL KINMEL BAY TOWYN STW

Abergele, Cymru / Wales

Rhyl Kinmel Bay Towyn STW serves approximately 54,652 people in Abergele, Wales. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.

Not Reported 54,652 Medium

CAERNARFON STW STW

Caernarfon, Cymru / Wales

Caernarfon STW STW serves approximately 12,184 people in Caernarfon, Gwynedd, Wales. The plant is located within 50 km of the coast and discharges into the Menai Strait, which connects to the Irish Sea.

Not Reported 12,184 Medium

LLANFAGLAN STW

Llanfaglan, Cymru / Wales

LLANFAGLAN STW is a wastewater treatment plant serving approximately 5,252 people in Llanfaglan, Gwynedd, Wales. It operates under UK regulations and discharges into local watercourses within the coastal region.

Not Reported 5,252 Medium

LLANGEFNI STW

Pentre Berw, Cymru / Wales

LLANGEFNI STW serves Pentre Berw on the Isle of Anglesey, Wales, treating wastewater for approximately 17,208 people. The plant operates under UK and EU regulations for secondary treatment.

Not Reported 17,208 Medium

HAVERFORD WEST STW

Haverfordwest, Cymru / Wales

Haverford West STW serves 17,556 people in Pembrokeshire, Wales. The plant operates under the EU Urban Waste Water Treatment Directive, which requires secondary treatment for agglomerations of this size.

Not Reported 17,556 Medium

MILFORD HAVEN STW

Milford Haven, Cymru / Wales

Milford Haven STW serves approximately 14,300 people in Milford Haven, Pembrokeshire, Wales. The plant discharges treated wastewater into the Milford Haven Waterway, a ria that flows into the Celtic Sea.

Not Reported 14,317 Medium

BRIDGEND STW

Ogmore, Cymru / Wales

BRIDGEND STW serves approximately 150,000 people in Ogmore, Wales, as part of the United Kingdom's wastewater infrastructure. The plant operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.

Not Reported 150,392 Medium

MONMOUTH STW STW

Monmouth, Cymru / Wales

MONMOUTH STW STW serves approximately 11,258 people in Monmouth, Wales. The plant discharges treated wastewater into the River Wye, a designated Site of Special Scientific Interest, and operates under UK environmental regulations.

Not Reported 11,258 Medium

CARDIFF STW

Cardiff, Cymru / Wales

Cardiff STW serves over 840,000 people in Cardiff, Wales, as a major wastewater treatment facility. The plant discharges treated effluent into the Bristol Channel, supporting local water quality and marine ecosystem health.

Not Reported 846,265 Medium

CARDIFF WEST AND BARRY COG MOORS

Lavernock, Cymru / Wales

Cardiff West and Barry Cog Moors wastewater treatment plant serves approximately 194,000 people near Lavernock, Wales. The facility operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.

Not Reported 193,689 Medium

NEWPORT STW

Newport, Cymru / Wales

NEWPORT STW serves approximately 275,000 people in Newport, Wales, as part of the UK's wastewater infrastructure. The plant discharges into the Severn Estuary, a major tidal water body with significant ecological importance.

Not Reported 275,230 Medium

PONTHIR STW

Newport, Cymru / Wales

PONTHIR STW is a wastewater treatment plant serving approximately 93,987 people in Newport, Wales, United Kingdom. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.

Not Reported 93,987 Medium

QUEENSFERRY STW

Queensferry, Cymru / Wales

QUEENSFERRY STW serves approximately 52,000 people in Queensferry, Wales. The plant discharges treated wastewater into the Dee Estuary, a sensitive coastal environment.

Not Reported 52,152 Medium

FLINT STW

Flint, Cymru / Wales

FLINT STW serves approximately 23,335 people in Flint, Wales. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.

Not Reported 23,335 Medium

LLANASA STW

Pen-y-ffordd, Cymru / Wales

LLANASA STW serves approximately 31,500 people in Pen-y-ffordd, Flintshire, Wales. The plant is located within 50 km of the coast and discharges treated effluent into local watercourses.

Not Reported 31,483 Medium

Frequently asked

How many wastewater treatment plants are in Cymru / Wales?

UtilityRadar indexes 120 wastewater treatment plants in Cymru / Wales, with treatment level, capacity, operator and discharge data on each record.

Who operates wastewater treatment in Cymru / Wales?

Among the plants on this page, the most-referenced operator is Dŵr Cymru / Welsh Water. UtilityRadar's records show 18 plants linked to this operator.

What is the largest wastewater treatment plant in Cymru / Wales?

Among the indexed plants, LLANNANT WWTW LLANNANT ROAD SWANSEA STW has the highest designed capacity at 1 m3/day.

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