Top of the Poops | Constituency Sewage Map

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You're looking at the totals that we have calculated for sewage in Gower 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	Llannant WwTW Storm Overflow	Tributary of Afon Llwchwr	43	845 h 46m	-
Dwr Cymru Welsh Water	Mumbles Knab Rock Storm Overflow	Estuarial Waters of Swansea Bay	41	562 h 15m	-
Dwr Cymru Welsh Water	Blodwen Terrace Storm Overflow	Loughor Estuary	30	344 h 28m	-
Dwr Cymru Welsh Water	Pont y Cob Road Storm Overflow	Afon Lliw	34	294 h 55m	-
Dwr Cymru Welsh Water	Pontilw Storm Overflow	Afon Lliw	34	224 h 39m	-
Dwr Cymru Welsh Water	Penclawdd Into Loughor Estuary Storm Overflow	Burry Estuary	9	137 h 15m	-
Dwr Cymru Welsh Water	Scurlage Overflow	Tributary of Burry Pill	9	136 h 15m	-
Dwr Cymru Welsh Water	Waun Road Loughor No.2 Storm Overflow	Afon Lliw	40	119 h 27m	-
Dwr Cymru Welsh Water	Frogmore Storm overflow	Oxwich Marsh Stream	22	107 h 15m	-
Dwr Cymru Welsh Water	Bwrw Road Loughor Overflow	Llwchwr	20	100 h 32m	-
Dwr Cymru Welsh Water	Garnswllt WwTW Storm Overflow	River Loughor	8	85 h 15m	-
Dwr Cymru Welsh Water	Rhosog Storm Overflow	Afon Lliw	13	50 h 45m	-
Dwr Cymru Welsh Water	Cwmbach Road Storm Overflow	Afon Llan	17	49 h 57m	-
Dwr Cymru Welsh Water	Parkmill Overflow	Mill Leat	8	47 h 27m	-
Dwr Cymru Welsh Water	Chapel Road Crofty Storm Overflow	Morlais River	8	42 h 22m	-
Dwr Cymru Welsh Water	Waun Road Loughor Overflow	Llwchwr	13	41 h 31m	-
Dwr Cymru Welsh Water	Newton Road Overflow	Caswell Bay	20	34 h 38m	-
Dwr Cymru Welsh Water	Bwlch Road Glanymor Road Storm Overflow	River Loughor	11	32 h 42m	-
Dwr Cymru Welsh Water	Newton Road Swansea Overflow	Swansea Bay	18	31 h 53m	-
Dwr Cymru Welsh Water	Crofty B North of Trading Estate Storm Overflow	Burry Estuary	6	31 h 1m	-
Dwr Cymru Welsh Water	Gowerton WwTW Storm Overflow	Loughor Estuary	6	30 h	-
Dwr Cymru Welsh Water	Gorseinon Grovesend Storm Overflow	Llwchwr Estuary	15	28 h 45m	-
Dwr Cymru Welsh Water	Norton Road and Avenue Junction Swansea Storm Overflow	Swansea Bay	11	27 h 20m	-
Dwr Cymru Welsh Water	Bishopston WwTW Storm Overflow	Coastal Waters - Brandy Cove	3	24 h 45m	-
Dwr Cymru Welsh Water	Loughor Kings Bridge Storm Overflow	Afon Lliw	12	22 h 30m	-
Dwr Cymru Welsh Water	Denver Road Storm Overflow	Afon Llan	17	22 h	-
Dwr Cymru Welsh Water	Llangennith Hillend Storm Overflow	Unnamed Stream	6	13 h 4m	-
Dwr Cymru Welsh Water	Rhossili WwTW Overflow	Carmarthen Bay	4	12 h	-
Dwr Cymru Welsh Water	Pontardulais Storm Overflow	Loughor	2	10 h	-
Dwr Cymru Welsh Water	Libanus Road Gorseinon Overflow	Afon Lliw	6	9 h 56m	-
Dwr Cymru Welsh Water	Promenade Terrace Swansea Storm Overflow	Swansea Bay	2	8 h 30m	-
Dwr Cymru Welsh Water	Cwm Ivy Overflow	Burry Pill	4	7 h 45m	-
Dwr Cymru Welsh Water	Gowerton Brynymor Road Storm Overflow	Tributary of Afon Llan	5	7 h 26m	-
Dwr Cymru Welsh Water	Pennard Overflow	Ilston Stream	3	7 h 15m	-
Dwr Cymru Welsh Water	Junction of The Dunns and Mumbles Road The Mumbles Storm Overflow	Swansea Bay	6	6 h 43m	-
Dwr Cymru Welsh Water	Loughor Brynafon Road Storm Overflow	Tributary of Loughor Estuary	1	3 h 41m	-
Dwr Cymru Welsh Water	Loughor Pentrebach Storm Overflow	Tributary of Afon Llwchwr	2	3 h	-
Dwr Cymru Welsh Water	Llanrhidian PS Overflow	Estuary	2	2 h 58m	-
Dwr Cymru Welsh Water	Brithwen Road Junction with Swansea Road Storm Overflow	Gors-Fawr Brook	1	1 h 46m	-
Dwr Cymru Welsh Water	Gower Road Upper Killay Storm Overflow	River Clun	1	1 h 30m	-
Dwr Cymru Welsh Water	Hen Parc Lane Overflow	Unnamed Tributary of the Clyne River	2	0 h 54m	-
Dwr Cymru Welsh Water	New Well Lane Overflow	Swansea Bay	2	0 h 29m	-
Dwr Cymru Welsh Water	Norton Road Storm Overflow	Swansea Bay	1	0 h 16m	-
Dwr Cymru Welsh Water	Benson Road Storm Overflow	Culvert leading to Burry Estuary	1	0 h 15m	-
Dwr Cymru Welsh Water	Mayals Road Storm Overflow	Swansea Bay	0	0 h	-
Dwr Cymru Welsh Water	Limeslade Overflow	Limeslade Bay	0	0 h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	-
Dwr Cymru Welsh Water	Cuckoo Mill Storm Overflow	Afon Llan	0	0 h	-
Dwr Cymru Welsh Water	Heol Pentre Bach Storm Overflow	Tributary of Loughor Estuary	0	0 h	-
Dwr Cymru Welsh Water	Camarthen Road Llewitha Storm Overflow	Afon Llan	0	0 h	-
Dwr Cymru Welsh Water	Swansea Fairwood Road Storm Overflow	Washinghouse Brook	0	0 h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	-
Dwr Cymru Welsh Water	Amy Dillwyn Close Storm Overflow	Swansea Bay	0	0 h	-
Dwr Cymru Welsh Water	Bryn Y Mor Road Gowerton Overflow	Unnamed Watercourse	0	0 h	-
Dwr Cymru Welsh Water	Reynoldston WwTW Storm Overflow	Burry Pill	0	0 h	-
Dwr Cymru Welsh Water	Cheriton Overflow	Burry Pill	0	0 h	-
Dwr Cymru Welsh Water	Pontadulais Storm Overflow	River Loughor	0	0 h	-
Dwr Cymru Welsh Water	CEFN Stylle Storm Overflow	Tributary of Loughor Estuary	0	0 h	-
Dwr Cymru Welsh Water	Pen Y Cwm Cockett Storm Overflow	Unnamed Tributary of Afon Llan	0	0 h	-
Dwr Cymru Welsh Water	Swansea Road Pontlliw Storm Overflow	River Lliw	0	0 h	-
Dwr Cymru Welsh Water	Tidal Reach Pontarddulais Storm Overflow	River Dulais	0	0 h	-
Dwr Cymru Welsh Water	Bae Langland Swansea Overflow	Langland Bay	0	0 h	-
Dwr Cymru Welsh Water	Gorseinon Road West of Roundabout Storm Overflow	Unnamed Tributary of Afon Lliw	0	0 h	-
Dwr Cymru Welsh Water	Gorseinon Road Penllergaer Storm Overflow	Afon Lliw	0	0 h	-
Dwr Cymru Welsh Water	Elmgrove Road Swansea Storm Overflow	Washinghouse Brook	0	0 h	-
Dwr Cymru Welsh Water	Borough Rd Storm overflow	Tributary of Loughor Estuary	0	0 h	-
Dwr Cymru Welsh Water	Cranmer Court Storm Overflow	Unnamed Tributary of Afon Llan	0	0 h	-
Dwr Cymru Welsh Water	Liliput Lane Swansea Storm Overflow	Swansea Bay	0	0 h	-
Dwr Cymru Welsh Water	Abergelly Road Kingsway Storm Overflow	Tributary of Afon Llan	0	0 h	-
Dwr Cymru Welsh Water	Bishopston Overflow	River Teifi	0	0 h	-
Dwr Cymru Welsh Water	Overton WwTW Storm Overflow	Coastal Waters - Overton Mere	0	0 h	-

It's a Dirty Business

Gower - Live Sewage

Polluted by sewage 3,573 hours in 2026 so far..

Gower - Live Sewage

Which Year?

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View Annual Sewage Data

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Constituencies near Gower

Daily Data

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Totals so far

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It's a Dirty Business

Gower - Live Sewage Polluted by sewage 3,573 hours in 2026 so far..

Gower - Live Sewage

Which Year?

Select Another Constituency

View Annual Sewage Data

Take Action

Constituencies near Gower

Daily Data

We need your support!

Totals so far

Data Sources & Accuracy

Media Queries

Please Support Us

Gower - Live Sewage

Polluted by sewage 3,573 hours in 2026 so far..