Top of the Poops | Constituency Sewage Map - Live Data| Ceredigion Preseli

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You're looking at the totals that we have calculated for sewage in Ceredigion Preseli 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 Ceredigion Preseli in 2026

Sewage56,091 hours

Monitoring offline0 hours

Potential pollution0 hours

Storm overflows130

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Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Dwr Cymru Welsh Water	Cardigan WwTW Storm Overflow	River Teifi	282	3,728h 32m	-
Dwr Cymru Welsh Water	Cwrtnewydd WwTW Storm Overflow	Nant Cledlyn	211	2,966h	-
Dwr Cymru Welsh Water	Llanfyrnach WwTW Storm Overflow	River Taff	112	2,360h 52m	-
Dwr Cymru Welsh Water	Verwig WwTW Storm Overflow	Nant Verwig	87	1,955h 29m	-
Dwr Cymru Welsh Water	Aberbanc Storm Overflow	Afon Cynllo	88	1,922h	-
Dwr Cymru Welsh Water	Maenclochog WwTW Storm Overflow	Afon Rhydyfallen	117	1,900h 31m	-
Dwr Cymru Welsh Water	Cribyn WwTW Storm Overflow	Afon Granell	116	1,855h 33m	-
Dwr Cymru Welsh Water	Scleddau Storm Overflow	Afon Cledan	92	1,811h 16m	-
Dwr Cymru Welsh Water	Alltyblaca Overflow	River Teifi	94	1,738h 31m	-
Dwr Cymru Welsh Water	Boncath WwTW Storm Overflow	Tributary of Afon Morgenau	89	1,734h 28m	-
Dwr Cymru Welsh Water	Puncheston WwTW Storm Overflow	Tributary of Afon Anghof	134	1,631h 5m	-
Dwr Cymru Welsh Water	Llangeitho WwTW Overflow	River Aeron	96	1,360h 52m	-
Dwr Cymru Welsh Water	Tregaron WwTw Storm Overflow	River Teifi	73	1,355h 27m	-
Dwr Cymru Welsh Water	Felindre Farchog Storm Overflow	River Nevern	63	1,252h 30m	-
Dwr Cymru Welsh Water	Nanternis WwTW Overflow	Afon Soden	71	1,207h 16m	-
Dwr Cymru Welsh Water	Nebo WwTW Storm Overflow	Afon Cledan	57	1,203h 48m	-
Dwr Cymru Welsh Water	Newport Cwm Storm Overflow	Newport Bay	72	1,153h 21m	-
Dwr Cymru Welsh Water	Silian Storm Overflow	Afon Denys	49	1,105h 59m	-
Dwr Cymru Welsh Water	Llanfihangel-ar-arth WwTW Overflow	River Teifi	48	1,101h 31m	-
Dwr Cymru Welsh Water	Dinas Near Fishguard WwTW Overflow	Sea	65	1,068h 58m	-
Dwr Cymru Welsh Water	Glennydd Gilfachreda Storm Overflow	Afon Lethi	57	953h 2m	-
Dwr Cymru Welsh Water	Cilgerran No.1 Storm Overflow	River Teifi	58	946h	-
Dwr Cymru Welsh Water	St. Dogmaels No.2 Storm Overflow	River Teifi	61	932h 44m	-
Dwr Cymru Welsh Water	Dinas Cross Fishguard Storm Overflow	Tributary of Aber Bach	63	886h 46m	-
Dwr Cymru Welsh Water	Pennant WwTW Storm Overflow	Afon Arth	103	860h	-
Dwr Cymru Welsh Water	Crymmych WwTW Storm Overflow	River Nevern	109	825h 19m	-
Dwr Cymru Welsh Water	Hermon WwTW Storm Overflow	Tributary of Afon Taf	46	784h 37m	-
Dwr Cymru Welsh Water	Llanfyrnach Storm Overflow	River Taff	52	740h 45m	-
Dwr Cymru Welsh Water	Rhydlewis South WwTW Storm Overflow	Nant Collen	91	719h 4m	-
Dwr Cymru Welsh Water	Llanychaer WwTW Storm Overflow	River Gwaun	44	681h 59m	-
Dwr Cymru Welsh Water	Beulah WwTW Storm Overflow	Nant Medini	97	665h 4m	-
Dwr Cymru Welsh Water	Teifi Terrace No2 Storm Overflow	River Teifi	75	637h 8m	-
Dwr Cymru Welsh Water	Cnwcau Storm Overflow	River Teifi	34	598h 44m	-
Dwr Cymru Welsh Water	Llanarth Bridge Storm Overflow	Afon Llethi	61	574h 41m	-
Dwr Cymru Welsh Water	Llangranog Beach Storm Overflow	Cardigan Bay	69	560h 48m	-
Dwr Cymru Welsh Water	Fishguard Slade Sea Discharge Storm Overflow	Fishguard Harbour	50	547h 15m	-
Dwr Cymru Welsh Water	Dolwen Storm Overflow	Nant Cledlyn	52	508h 1m	-
Dwr Cymru Welsh Water	Llwyncelyn WwTW Storm Overflow	Afon Drywi	49	466h 44m	-
Dwr Cymru Welsh Water	East of Ynyslas Beach Overflow	Unnamed Ditch	35	437h 45m	-
Dwr Cymru Welsh Water	Bow Street Storm Overflow	River Clarach	52	434h 6m	-
Dwr Cymru Welsh Water	Adpar Storm Overflow	River Teifi	26	424h	-
Dwr Cymru Welsh Water	Pen-Y-Bryn Storm Overflow	Afon Pilau	54	412h 3m	-
Dwr Cymru Welsh Water	Trefechan Bridge Storm Overflow	River Rheidol	19	409h 45m	-
Dwr Cymru Welsh Water	Clynderwen Iron Duke Storm Overflow	Tributary of the Cleddau Ddu	33	399h	-
Dwr Cymru Welsh Water	Llechryd No 1 Storm Overflow	River Teifi	34	374h 16m	-
Dwr Cymru Welsh Water	Rhydlewis North PS Storm Overflow	Nant Collen	27	349h 30m	-
Dwr Cymru Welsh Water	Ffostrasol WwTW Overflow	Cerdin	90	342h 56m	-
Dwr Cymru Welsh Water	Croesgoch WwTW Storm Overflow	Porthgain Stream	32	336h 51m	-
Dwr Cymru Welsh Water	Aberaeron Storm Overflow	Coastal Water - Cardigan Bay	30	302h 14m	-
Dwr Cymru Welsh Water	Aberporth WwTW Storm Overflow	Aberporth Coastal Waters	26	252h 43m	-
Dwr Cymru Welsh Water	St. Dogmaels Maeshyfryd Street Storm Overflow	River Teifi	16	250h 45m	-
Dwr Cymru Welsh Water	Porthgain WwTW Overflow	Cardigan Bay South	22	250h 7m	-
Dwr Cymru Welsh Water	St.Mary Street Storm Overflow	River Teifi	43	235h 8m	-
Dwr Cymru Welsh Water	Llanon WwTW Storm Overflow	Coastal Waters - Llansaintffraid	34	218h 58m	-
Dwr Cymru Welsh Water	Eglwyswrw WwTW Storm Overflow	Nant Hafren	10	172h 30m	-
Dwr Cymru Welsh Water	Cilgerran WwTW Storm Overflow	River Teifi	13	169h 30m	-
Dwr Cymru Welsh Water	Llanfarian WwTW Settled Storm Overflow	River Ystwyth	30	164h 35m	-
Dwr Cymru Welsh Water	Abercych Storm Overflow	River Teifi	39	156h 7m	-
Dwr Cymru Welsh Water	Northeast of Lewis Street Storm Overflow	River Teifi	81	145h 46m	-
Dwr Cymru Welsh Water	Penrhiwllan Storm Overflow	Afon Iago	12	145h 30m	-
Dwr Cymru Welsh Water	Taliesin Overflow	Afon Leri	31	143h 45m	-
Dwr Cymru Welsh Water	The Parrog Goodwick Storm Overflow	Goodwick Brook	24	137h 13m	-
Dwr Cymru Welsh Water	Clarach Bay Overflow	River Clarach	18	133h 59m	-
Dwr Cymru Welsh Water	Llanddewi Brefi WwTW Storm Overflow	Afon Brefi	18	131h 29m	-
Dwr Cymru Welsh Water	Tregaron Storm Overflow	Afon Brenig	24	130h 45m	-
Dwr Cymru Welsh Water	Mydroilyn WwTW Storm Overflow	Afon Mydr	36	125h 45m	-
Dwr Cymru Welsh Water	Bridge Street Fishguard Storm Overflow	Lower Town Harbour, Fishguard	53	113h 10m	-
Dwr Cymru Welsh Water	Henllan Storm Overflow	River Teifi	32	109h 58m	-
Dwr Cymru Welsh Water	Llanina WwTW Storm Overflow	Coastal Waters - Llanina Point	36	98h 30m	-
Dwr Cymru Welsh Water	Pontrhydfendigaid Storm Overflow	River Teifi	45	97h 7m	-
Dwr Cymru Welsh Water	Pont-Y-Cleifion Storm Overflow	River Teifi	24	89h 5m	-
Dwr Cymru Welsh Water	Lampeter Storm Overflow	River Teifi	12	85h 2m	-
Dwr Cymru Welsh Water	Ystrad Aeron Storm Overflow	Tributary of Afon Aeron	27	74h 51m	-
Dwr Cymru Welsh Water	Harbour Lane Junction Storm Overflow	Aberystwyth Harbour	20	71h 21m	-
Dwr Cymru Welsh Water	Talgarreg WwTW Storm Overflow	Afon Clettwr	21	68h 44m	-
Dwr Cymru Welsh Water	St Nicholas WwTW Storm Overflow	Tributary of Aberbach Stream	48	51h 45m	-
Dwr Cymru Welsh Water	Ffos-y-ffin Storm Overflow	Ceri Brook	16	50h 53m	-
Dwr Cymru Welsh Water	Aberarth Storm Overflow	Coastal Water - Cardigan Bay	8	48h 59m	-
Dwr Cymru Welsh Water	Llanrhystud WwTW Storm Overflow	River Wyre	10	46h 14m	-
Dwr Cymru Welsh Water	Mill View Llangranog Storm Overflow	Nant Hawen	6	41h 30m	-
Dwr Cymru Welsh Water	Llanfarian WwTW Inlet Storm Overflow	River Ystwyth	5	35h 13m	-
Dwr Cymru Welsh Water	Blaenffos WwTW Storm Overflow	River Nevern	5	33h 54m	-
Dwr Cymru Welsh Water	Fishguard Harbour PS Overflow	Coastal Waters - Fishguard Harbour	17	32h 15m	-
Dwr Cymru Welsh Water	Lampeter Campus Storm Overflow	River Dulais	22	29h 57m	-
Dwr Cymru Welsh Water	Llechryd on Nant Arberth Storm Overflow	Nant Arberth	3	28h 15m	-
Dwr Cymru Welsh Water	Teifi Terrace No1 Storm Overflow	River Teifi	7	27h 4m	-
Dwr Cymru Welsh Water	Llanilar on Clos Henri Storm Overflow	Drain to Nant Adail	13	26h 28m	-
Dwr Cymru Welsh Water	Clynderwen Final Effulent Storm Overflow	Pont Shan Brook	11	25h 23m	-
Dwr Cymru Welsh Water	Llanbadarn Fawr Storm Overflow	Plas Crug Ditch	5	25h 15m	-
Dwr Cymru Welsh Water	St Dogmaels Main Storm Overflow	River Teifi	11	23h 26m	-
Dwr Cymru Welsh Water	Mount Walk Crossroads Storm Overflow	Nant Creudyyn	17	23h 17m	-
Dwr Cymru Welsh Water	Talybont Overflow	Leri - Lower	11	21h 59m	-
Dwr Cymru Welsh Water	Llanddewi Brefi Storm Overflow	Afon Brefi	11	19h 27m	-
Dwr Cymru Welsh Water	Cenarth WwTW Storm Overflow	River Teifi	12	18h 36m	-
Dwr Cymru Welsh Water	Pantycelyn Fishguard Storm Overflow	Coastal Waters - Fishguard Harbour	19	18h 28m	-
Dwr Cymru Welsh Water	Cardigan Bridge Storm Overflow	River Teifi	8	17h 30m	-
Dwr Cymru Welsh Water	Gloster Row Storm Overflow	River Teifi	9	15h	-
Dwr Cymru Welsh Water	Glogue WwTW Storm Overflow	River Taff	6	13h 43m	-
Dwr Cymru Welsh Water	Wellington Place Car Park Storm Overflow	New Quay Bay	4	12h 15m	-
Dwr Cymru Welsh Water	Junction of Upper Mwldan and College Row Cardigan Storm Overflow	Afon Mwldan	12	10h 56m	-
Dwr Cymru Welsh Water	Pontrhydyceirt WwTW Overflow	Morgenau	2	10h 45m	-
Dwr Cymru Welsh Water	Peniel Lane Storm Overflow	Coastal Waters - Aberaeron	9	10h 11m	-
Dwr Cymru Welsh Water	Castle Morris WwTW Storm Overflow	Western Cleddau	10	8h 58m	-
Dwr Cymru Welsh Water	Railway Terrace Storm Overflow	Goodwick Brook	9	8h 27m	-
Dwr Cymru Welsh Water	Quay Street Car Park Storm Overflow	River Teifi	3	7h 45m	-
Dwr Cymru Welsh Water	Aberystwyth Tan-Y-Cae Storm Overflow	River Rheidol	3	6h 59m	-
Dwr Cymru Welsh Water	Gwbert Overflow	Cardigan Bay	5	5h 30m	-
Dwr Cymru Welsh Water	Cardigan Cattle Market Storm Overflow	River Teifi	3	5h	-
Dwr Cymru Welsh Water	Off Church Street Cwm Plysgog Storm Overflow	Afon Plysgog	1	4h 30m	-
Dwr Cymru Welsh Water	Newchapel WwTW Storm Overflow	Tributary of Afon Dulas	10	4h 29m	-
Dwr Cymru Welsh Water	Aberporth No. 2 Storm Overflow	Nant Gilwen	2	4h 15m	-
Dwr Cymru Welsh Water	New Street Lampeter Storm Overflow	River Teifi	6	4h 13m	-
Dwr Cymru Welsh Water	Llanwnnen South Storm Overflow	Afon Grannell	3	3h 57m	-
Dwr Cymru Welsh Water	Trefin WwTW Storm Overflow	Aberdraw Stream	6	3h 45m	-
Dwr Cymru Welsh Water	Penparc Storm Overflow	Nant Thyd-Y-Fuch Ditch	1	3h	-
Dwr Cymru Welsh Water	Waterloo Street Aberaeron Overflow	Cardigan Bay Central	2	2h 28m	-
Dwr Cymru Welsh Water	Pentrellyn Storm Overflow	River Ystwyth	1	0h 45m	-
Dwr Cymru Welsh Water	Swyn Y Leri Storm Overflow	Leri Lower	1	0h 15m	-
Dwr Cymru Welsh Water	Spring Gardens New Quay Storm Overflow	New Quay Bay	1	0h 13m	-
Dwr Cymru Welsh Water	Parrog Road Storm Overflow	Tributary of Afon Nyfer	0	0h	-
Dwr Cymru Welsh Water	Clarach WwTW Storm Overflow	River Clarach	0	0h	-
Dwr Cymru Welsh Water	Fifth Avenue Storm Overflow	River Rheidol	0	0h	-
Dwr Cymru Welsh Water	Heol Y Farchnad Road Storm Overflow	Nant Aeron	0	0h	-
Dwr Cymru Welsh Water	Lower Tresaith Storm Overflow	Sea	0	0h	-
Dwr Cymru Welsh Water	Min-Y-Ddol Storm Overflow	River Rheidol	0	0h	-
Dwr Cymru Welsh Water	South John Street Storm Overflow	New Quay Bay	0	0h	-
Dwr Cymru Welsh Water	Aberporth No. 1 Storm Overflow	Nant Howni	0	0h	-
Dwr Cymru Welsh Water	Ceibwr Lane Moylegrove Storm Overflow	Ceibwr Brook	0	0h	-
Dwr Cymru Welsh Water	Pendard Storm Overflow	New Quay Bay	0	0h	-
Dwr Cymru Welsh Water	Llanina Point Storm Overflow	Coastal Waters - Llanina Point	0	0h	-

Ceredigion Preseli - Live Sewage

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