Top of the Poops | Constituency Sewage Map - Live Data| Montgomeryshire and Glyndwr

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You're looking at the totals that we have calculated for sewage in Montgomeryshire and Glyndwr so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Dwr Cymru Welsh Water	Commins Coch Storm Overflow	River Twymyn	58	1,360 h 15m	-
Dwr Cymru Welsh Water	Llanbrynmair Tafolwern WwTW Storm Overflow	Afon Iaen	63	1,280 h 10m	-
Dwr Cymru Welsh Water	Llangurig Storm Overflow	River Wye	51	1,125 h 23m	-
Dwr Cymru Welsh Water	Bontdolgadfan Storm Overflow	River Twymyn	34	475 h 29m	-
Dwr Cymru Welsh Water	Cefn Mawr WwTW Storm Overflow	River Dee	26	263 h 45m	-
Dwr Cymru Welsh Water	Glyn Ceiriog WwTW Overflow	River Ceiriog	33	197 h 18m	-
Dwr Cymru Welsh Water	Rhosllanerchrugog Pant Storm Overflow	Afon Goch	33	190 h 15m	-
Dwr Cymru Welsh Water	Cefn Storm Overflow	Tref-Y-Nant Brook	21	114 h 58m	-
Dwr Cymru Welsh Water	Penycae Storm Overflow	Afon Eitha	18	94 h 15m	-
Dwr Cymru Welsh Water	Chirk Canal Wood Storm Overflow	River Bradley	9	51 h 15m	-
Dwr Cymru Welsh Water	Machynlleth WwTW Settled Storm Overflow	Garsiwn Ffos	13	48 h 45m	-
Dwr Cymru Welsh Water	Machynlleth WwTW Storm Overflow	River Dyfi	13	48 h 45m	-
Dwr Cymru Welsh Water	Afon Eitha Storm Overflow	Afon Goch	19	47 h 27m	-
Dwr Cymru Welsh Water	Bersham Colliery Railway Storm Overflow	Glanyrafon Brook	10	35 h 53m	-
Dwr Cymru Welsh Water	Pontfadog WwTW Storm Overflow	River Ceiriog	14	27 h 45m	-
Dwr Cymru Welsh Water	Ceinws Esgairgeiliog Storm Overflow	Afon Glesrych Estuary	2	26 h 30m	-
Dwr Cymru Welsh Water	Bangor Road Rhosllanerchrugog Storm Overflow	Black Brook	10	26 h 30m	-
Dwr Cymru Welsh Water	Ffordd Offa Rhosllanerchrugog Storm Overflow	Unnamed Watercourse	9	13 h 58m	-
Dwr Cymru Welsh Water	Offa Street Chirk Storm Overflow	Tributary of the Afon Dyfrdwy	10	13 h 52m	-
Dwr Cymru Welsh Water	Bryn Glas Rhosllanerchrugog Storm Overflow	Afon Goch	8	13 h 15m	-
Dwr Cymru Welsh Water	Y Gamer Glyn Ceiriog Storm Overflow	River Ceiriog	12	12 h 38m	-
Dwr Cymru Welsh Water	Aberderfyn Road Rhosllanerchrugog Storm Overflow	Aberderfyn	7	7 h 9m	-
Dwr Cymru Welsh Water	Paddock Row Ruabon Storm Overflow No2	Afon Eitha	5	7 h	-
Dwr Cymru Welsh Water	Trofryn Rhosllanerchrugog Overflow	River Eitha	3	5 h 59m	-
Dwr Cymru Welsh Water	Colliery Road Rhostyllen Storm Overflow	Glanyrafon Brook	2	1 h 30m	-
Dwr Cymru Welsh Water	Next to Bridge Newbridge Overflow	River Dee	1	1 h 30m	-
Dwr Cymru Welsh Water	Machynlleth Popular Terrace Storm Overflow	Unnamed Ditch	3	0 h 49m	-
Dwr Cymru Welsh Water	North West of Bro-Ddewi Dolywern Storm Overflow	River Ceiriog	1	0 h 30m	-
Dwr Cymru Welsh Water	Park Road Rhosymedre Storm Overflow	Tributary of the River Dee	1	0 h 27m	-
Dwr Cymru Welsh Water	New Road Wrexham Storm Overflow	Tref-Y-Nant Brook	1	0 h 15m	-
Dwr Cymru Welsh Water	Garsiwn Ditch Storm Overflow	Garsiwn Ditch	1	0 h 15m	-
Dwr Cymru Welsh Water	Heol Y Doll Machynlleth Storm Overflow	Garsiwn ditch	0	0 h	-
Dwr Cymru Welsh Water	Chirk Settled Storm Overflow	River Bradley	0	0 h	-
Dwr Cymru Welsh Water	Dolywern WwTW Storm Overflow	River Ceiriog	0	0 h	-
Dwr Cymru Welsh Water	Pont-Yr-Afon Field Storm Overflow	Afon Eitha	0	0 h	-
Dwr Cymru Welsh Water	South of Hampden Way Wrexham Storm Overflow	Tributary of the Afon Dyfrdwy	0	0 h	-
Dwr Cymru Welsh Water	Off Llangollen Road Cefn-mawr Storm Overflow	Tref-Y-Nant Brook	0	0 h	-
Dwr Cymru Welsh Water	Machynlleth WwTW Inlet Storm Overflow	Garsiwn Ditch	0	0 h	-
Dwr Cymru Welsh Water	New Hall Road Ruabon Storm Overflow	Afon Goch	0	0 h	-
Dwr Cymru Welsh Water	Paddock Row Ruabon Storm Overflow	Afon Eitha	0	0 h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	-

It's a Dirty Business

Montgomeryshire and Glyndwr - Live Sewage

Polluted by sewage 5,493 hours in 2026 so far..

Montgomeryshire and Glyndwr - Live Sewage

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It's a Dirty Business

Montgomeryshire and Glyndwr - Live Sewage Polluted by sewage 5,493 hours in 2026 so far..

Montgomeryshire and Glyndwr - Live Sewage

Which Year?

Select Another Constituency

View Annual Sewage Data

Take Action

Constituencies near Montgomeryshire and Glyndwr

Daily Data

We need your support!

Totals so far

Data Sources & Accuracy

Media Queries

Please Support Us

Montgomeryshire and Glyndwr - Live Sewage

Polluted by sewage 5,493 hours in 2026 so far..