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Gower - Live Sewage

Polluted by sewage 7,552 hours in 2026 so far..

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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View Annual Sewage Data

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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Constituencies near Gower

Daily Data

Jan - 1,927 hours
Feb - 2,338 hours
Mar - 367 hours
Apr - 4 hours
May - 1,330 hours
Jun - 1,581 hours
Jul - 0 hours
Aug - 1 hours
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

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 85 1,734h 45m -
Dwr Cymru Welsh Water Mumbles Knab Rock Storm Overflow Estuarial Waters of Swansea Bay 80 1,384h 16m -
Dwr Cymru Welsh Water Waun Road Loughor Overflow Llwchwr 48 782h 28m -
Dwr Cymru Welsh Water Newton Road Swansea Overflow Swansea Bay 56 772h 19m -
Dwr Cymru Welsh Water Blodwen Terrace Storm Overflow Loughor Estuary 38 416h 58m -
Dwr Cymru Welsh Water Pont y Cob Road Storm Overflow Afon Lliw 43 345h 54m -
Dwr Cymru Welsh Water Pontilw Storm Overflow Afon Lliw 41 275h 47m -
Dwr Cymru Welsh Water Scurlage Overflow Tributary of Burry Pill 16 230h 30m -
Dwr Cymru Welsh Water Penclawdd Into Loughor Estuary Storm Overflow Burry Estuary 12 173h 15m -
Dwr Cymru Welsh Water Garnswllt WwTW Storm Overflow River Loughor 13 157h 30m -
Dwr Cymru Welsh Water Frogmore Storm overflow Oxwich Marsh Stream 29 156h -
Dwr Cymru Welsh Water Bwrw Road Loughor Overflow Llwchwr 27 143h 17m -
Dwr Cymru Welsh Water Waun Road Loughor No.2 Storm Overflow Afon Lliw 52 135h 29m -
Dwr Cymru Welsh Water Cwmbach Road Storm Overflow Afon Llan 23 79h 42m -
Dwr Cymru Welsh Water Parkmill Overflow Mill Leat 11 78h 15m -
Dwr Cymru Welsh Water Rhosog Storm Overflow Afon Lliw 17 70h -
Dwr Cymru Welsh Water Chapel Road Crofty Storm Overflow Morlais River 10 61h 58m -
Dwr Cymru Welsh Water Newton Road Overflow Caswell Bay 27 60h 43m -
Dwr Cymru Welsh Water Gowerton WwTW Storm Overflow Loughor Estuary 10 52h 30m -
Dwr Cymru Welsh Water Bwlch Road Glanymor Road Storm Overflow River Loughor 14 50h 6m -
Dwr Cymru Welsh Water Gorseinon Grovesend Storm Overflow Llwchwr Estuary 18 44h 30m -
Dwr Cymru Welsh Water Bishopston WwTW Storm Overflow Coastal Waters - Brandy Cove 4 43h 30m -
Dwr Cymru Welsh Water Pontardulais Storm Overflow Loughor 5 37h 15m -
Dwr Cymru Welsh Water Loughor Kings Bridge Storm Overflow Afon Lliw 17 34h 45m -
Dwr Cymru Welsh Water Norton Road and Avenue Junction Swansea Storm Overflow Swansea Bay 19 33h 59m -
Dwr Cymru Welsh Water Crofty B North of Trading Estate Storm Overflow Burry Estuary 6 31h 1m -
Dwr Cymru Welsh Water Denver Road Storm Overflow Afon Llan 23 24h 45m -
Dwr Cymru Welsh Water Pennard Overflow Ilston Stream 5 16h 45m -
Dwr Cymru Welsh Water Rhossili WwTW Overflow Carmarthen Bay 5 15h 15m -
Dwr Cymru Welsh Water Llangennith Hillend Storm Overflow Unnamed Stream 7 14h 59m -
Dwr Cymru Welsh Water Llanrhidian PS Overflow Estuary 5 12h 51m -
Dwr Cymru Welsh Water Hen Parc Lane Overflow Unnamed Tributary of the Clyne River 5 10h 51m -
Dwr Cymru Welsh Water Libanus Road Gorseinon Overflow Afon Lliw 7 10h 26m -
Dwr Cymru Welsh Water Cuckoo Mill Storm Overflow Afon Llan 2 9h 45m -
Dwr Cymru Welsh Water Cwm Ivy Overflow Burry Pill 5 9h -
Dwr Cymru Welsh Water Promenade Terrace Swansea Storm Overflow Swansea Bay 2 8h 30m -
Dwr Cymru Welsh Water Gowerton Brynymor Road Storm Overflow Tributary of Afon Llan 7 7h 56m -
Dwr Cymru Welsh Water Junction of The Dunns and Mumbles Road The Mumbles Storm Overflow Swansea Bay 6 6h 43m -
Dwr Cymru Welsh Water Gower Road Upper Killay Storm Overflow River Clun 2 5h 45m -
Dwr Cymru Welsh Water Loughor Pentrebach Storm Overflow Tributary of Afon Llwchwr 4 5h -
Dwr Cymru Welsh Water Loughor Brynafon Road Storm Overflow Tributary of Loughor Estuary 1 3h 41m -
Dwr Cymru Welsh Water Brithwen Road Junction with Swansea Road Storm Overflow Gors-Fawr Brook 1 1h 46m -
Dwr Cymru Welsh Water Benson Road Storm Overflow Culvert leading to Burry Estuary 2 0h 30m -
Dwr Cymru Welsh Water New Well Lane Overflow Swansea Bay 2 0h 29m -
Dwr Cymru Welsh Water Norton Road Storm Overflow Swansea Bay 1 0h 16m -
Dwr Cymru Welsh Water Pontadulais Storm Overflow River Loughor 1 0h 15m -
Dwr Cymru Welsh Water Limeslade Overflow Limeslade Bay 0 0h -
Dwr Cymru Welsh Water Camarthen Road Llewitha Storm Overflow Afon Llan 0 0h -
Dwr Cymru Welsh Water Tidal Reach Pontarddulais Storm Overflow River Dulais 0 0h -
Dwr Cymru Welsh Water Abergelly Road Kingsway Storm Overflow Tributary of Afon Llan 0 0h -
Dwr Cymru Welsh Water Bishopston Overflow River Teifi 0 0h -
Dwr Cymru Welsh Water Overton WwTW Storm Overflow Coastal Waters - Overton Mere 0 0h -
Dwr Cymru Welsh Water Langland Bay Swansea Overflow Langland Bay 0 0h -
Dwr Cymru Welsh Water Bryn Y Mor Road Gowerton Overflow Unnamed Watercourse 0 0h -
Dwr Cymru Welsh Water Reynoldston WwTW Storm Overflow Burry Pill 0 0h -
Dwr Cymru Welsh Water Cheriton Overflow Burry Pill 0 0h -
Dwr Cymru Welsh Water CEFN Stylle Storm Overflow Tributary of Loughor Estuary 0 0h -
Dwr Cymru Welsh Water Gorseinon Road West of Roundabout Storm Overflow Unnamed Tributary of Afon Lliw 0 0h -
Dwr Cymru Welsh Water Cranmer Court Storm Overflow Unnamed Tributary of Afon Llan 0 0h -
Dwr Cymru Welsh Water Liliput Lane Swansea Storm Overflow Swansea Bay 0 0h -
Dwr Cymru Welsh Water Bryn Y Mor Road Storm Overflow Pennard Pill 0 0h -
Dwr Cymru Welsh Water Heol Pentre Bach Storm Overflow Tributary of Loughor Estuary 0 0h -
Dwr Cymru Welsh Water Amy Dillwyn Close Storm Overflow Swansea Bay 0 0h -
Dwr Cymru Welsh Water Pen Y Cwm Cockett Storm Overflow Unnamed Tributary of Afon Llan 0 0h -
Dwr Cymru Welsh Water Swansea Road Pontlliw Storm Overflow River Lliw 0 0h -
Dwr Cymru Welsh Water Gorseinon Road Penllergaer Storm Overflow Afon Lliw 0 0h -
Dwr Cymru Welsh Water Elmgrove Road Swansea Storm Overflow Washinghouse Brook 0 0h -
Dwr Cymru Welsh Water Mayals Road Storm Overflow Swansea Bay 0 0h -
Dwr Cymru Welsh Water Unknown Unknown 0 0h -
Dwr Cymru Welsh Water Swansea Fairwood Road Storm Overflow Washinghouse Brook 0 0h -
Dwr Cymru Welsh Water The Nook Oxwich Storm Overflow Oxwich Marsh Stream - headwaters to tidal limit 0 0h -
Dwr Cymru Welsh Water Bae Langland Swansea Overflow Langland Bay 0 0h -
Dwr Cymru Welsh Water Borough Rd Storm overflow Tributary of Loughor Estuary 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

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