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.

Totals for Montgomeryshire and Glyndwr in 2026

Sewage8,319 hours

Monitoring offline0 hours

Potential pollution0 hours

Storm overflows42

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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	127	2,826h 28m	-
Dwr Cymru Welsh Water	Llanbrynmair Tafolwern WwTW Storm Overflow	Afon Iaen	169	2,097h 59m	-
Dwr Cymru Welsh Water	Llangurig Storm Overflow	River Wye	69	1,410h 48m	-
Dwr Cymru Welsh Water	Bontdolgadfan Storm Overflow	River Twymyn	38	496h	-
Dwr Cymru Welsh Water	Cefn Mawr WwTW Storm Overflow	River Dee	35	290h 1m	-
Dwr Cymru Welsh Water	Rhosllanerchrugog Pant Storm Overflow	Afon Goch	48	227h 12m	-
Dwr Cymru Welsh Water	Glyn Ceiriog WwTW Overflow	River Ceiriog	49	223h 35m	-
Dwr Cymru Welsh Water	Cefn Storm Overflow	Tref-Y-Nant Brook	32	124h 11m	-
Dwr Cymru Welsh Water	Penycae Storm Overflow	Afon Eitha	20	95h 22m	-
Dwr Cymru Welsh Water	Machynlleth WwTW Storm Overflow	River Dyfi	17	84h 43m	-
Dwr Cymru Welsh Water	Afon Eitha Storm Overflow	Afon Goch	25	62h 8m	-
Dwr Cymru Welsh Water	Ceinws Esgairgeiliog Storm Overflow	Afon Glesrych Estuary	5	57h 30m	-
Dwr Cymru Welsh Water	Chirk Canal Wood Storm Overflow	River Bradley	14	54h 16m	-
Dwr Cymru Welsh Water	Machynlleth WwTW Settled Storm Overflow	Garsiwn Ffos	13	48h 45m	-
Dwr Cymru Welsh Water	Bersham Colliery Railway Storm Overflow	Glanyrafon Brook	14	39h 23m	-
Dwr Cymru Welsh Water	Pontfadog WwTW Storm Overflow	River Ceiriog	15	28h 29m	-
Dwr Cymru Welsh Water	Bangor Road Rhosllanerchrugog Storm Overflow	Black Brook	12	27h 29m	-
Dwr Cymru Welsh Water	Y Gamer Glyn Ceiriog Storm Overflow	River Ceiriog	18	20h 8m	-
Dwr Cymru Welsh Water	Bryn Glas Rhosllanerchrugog Storm Overflow	Afon Goch	14	18h 31m	-
Dwr Cymru Welsh Water	Ffordd Offa Rhosllanerchrugog Storm Overflow	Unnamed Watercourse	10	15h 43m	-
Dwr Cymru Welsh Water	Aberderfyn Road Rhosllanerchrugog Storm Overflow	Aberderfyn	11	14h 7m	-
Dwr Cymru Welsh Water	Offa Street Chirk Storm Overflow	Tributary of the Afon Dyfrdwy	10	13h 52m	-
Dwr Cymru Welsh Water	Chirk Settled Storm Overflow	River Bradley	4	9h 48m	-
Dwr Cymru Welsh Water	Paddock Row Ruabon Storm Overflow No2	Afon Eitha	7	8h 30m	-
Dwr Cymru Welsh Water	Trofryn Rhosllanerchrugog Overflow	River Eitha	3	5h 59m	-
Dwr Cymru Welsh Water	Machynlleth WwTW Inlet Storm Overflow	Garsiwn Ditch	4	4h 31m	-
Dwr Cymru Welsh Water	Next to Bridge Newbridge Overflow	River Dee	3	3h 14m	-
Dwr Cymru Welsh Water	Colliery Road Rhostyllen Storm Overflow	Glanyrafon Brook	5	2h 44m	-
Dwr Cymru Welsh Water	Dolywern WwTW Storm Overflow	River Ceiriog	1	2h 15m	-
Dwr Cymru Welsh Water	North West of Bro-Ddewi Dolywern Storm Overflow	River Ceiriog	3	1h 43m	-
Dwr Cymru Welsh Water	Garsiwn Ditch Storm Overflow	Garsiwn Ditch	4	1h 30m	-
Dwr Cymru Welsh Water	Machynlleth Popular Terrace Storm Overflow	Unnamed Ditch	4	0h 49m	-
Dwr Cymru Welsh Water	Chapel Lane and Lloyds Lane Chirk Storm Overflow	Unnamed Ditch leading to Bradley Brook	1	0h 29m	-
Dwr Cymru Welsh Water	New Hall Road Ruabon Storm Overflow	Afon Goch	1	0h 29m	-
Dwr Cymru Welsh Water	Park Road Rhosymedre Storm Overflow	Tributary of the River Dee	1	0h 27m	-
Dwr Cymru Welsh Water	New Road Wrexham Storm Overflow	Tref-Y-Nant Brook	1	0h 15m	-
Dwr Cymru Welsh Water	Heol Y Doll Machynlleth Storm Overflow	Garsiwn ditch	0	0h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0h	-
Dwr Cymru Welsh Water	South of Hampden Way Wrexham Storm Overflow	Tributary of the Afon Dyfrdwy	0	0h	-
Dwr Cymru Welsh Water	Pont-Yr-Afon Field Storm Overflow	Afon Eitha	0	0h	-
Dwr Cymru Welsh Water	Off Llangollen Road Cefn-mawr Storm Overflow	Tref-Y-Nant Brook	0	0h	-
Dwr Cymru Welsh Water	Paddock Row Ruabon Storm Overflow	Afon Eitha	0	0h	-

Montgomeryshire and Glyndwr - Live Sewage

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