Preseli Pembrokeshire polluted by sewage 5,098 times in 2022 - lasting 47,283 hours

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✔ means we have experimental daily data for 2023

Totals for Preseli Pembrokeshire in 2022

87 Sites polluted by Dwr Cymru Welsh Water

5,098 sewage dumps
47,283 h duration

That's 5.47 years! On average 14 times a day

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Constituencies near Preseli Pembrokeshire

Waterways in Preseli Pembrokeshire

Pollution Summary 2022

Here are all the reported sewage overflow totals for Preseli Pembrokeshire in 2022. Sometimes sewage can be being dumped for months at a time.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Taf	Settled Storm Overflow at Llanfyrnach Wastewater Treatment Works	139	2,921	100
Dwr Cymru Welsh Water	River Cleddau	SCLEDDAU EO AND CSO	133	2,534	100
Dwr Cymru Welsh Water	River Taf	Hermon STW Storm Overflow Hermon	150	2,398	100
Dwr Cymru Welsh Water	River Rhydyfallen-Uatroy Of Eastern Cleddau	CSO at Maenclochog STW	165	2,275	100
Dwr Cymru Welsh Water	River Morgenau	CSO at Boncath Wastewater Treatment Works	125	2,139	97.9
Dwr Cymru Welsh Water	Newport Bay	CWM SEWAGE PUMPING STATION	125	2,081	99.9
Dwr Cymru Welsh Water	Cartlet Brook	CLARBESTON STW HAVERFORDWEST PEMBS	227	1,788	100
Dwr Cymru Welsh Water	Western Cleddau	Pont-Yr-Hafod Sewage Pumping Station	84	1,647	90.8
Dwr Cymru Welsh Water	Nevern	Felindre Farchog SPS	79	1,581	99.9
Dwr Cymru Welsh Water	River Anghof	Puncheston WwTW Inlet CSO	116	1,483	100
Dwr Cymru Welsh Water	River Nevern	Blaenffos WwTW CSO	95	1,439	100
Dwr Cymru Welsh Water	Sea	DINAS STW . .	89	1,379	99.4
Dwr Cymru Welsh Water	River Teifi	Cilgerran No 1 SPS	111	1,359	100
Dwr Cymru Welsh Water	River Gwaun	CSO at LLANYCHAER STW	112	1,333	100
Dwr Cymru Welsh Water	Llangwm Pill	EMERGENCY DISCHARGE FROM LLANG	75	1,333	96.3
Dwr Cymru Welsh Water	River Teifi	ST DOGMAELS NORTH END PS CSO AND EO	85	1,226	100
Dwr Cymru Welsh Water	River Taf, Via Surface Water Sewer	Llanfrynach SPS	68	1,202	100
Dwr Cymru Welsh Water	River Taf	CSO at Glogue STW	101	1,157	99.7
Dwr Cymru Welsh Water	Deepford Brook	Clarbeston Road PS	66	1,050	99.9
Dwr Cymru Welsh Water	Aber Bach	Dinas Cross SPS	68	1,046	99.6
Dwr Cymru Welsh Water	River Nevern	CRYMYCH STW	134	995	99.9
Dwr Cymru Welsh Water	Aberdraw Stream	CSO at Trevine STW	135	984	100
Dwr Cymru Welsh Water	Western Cleddau	Letterston West WwTW CSO	128	952	100
Dwr Cymru Welsh Water	River Teifi	Settled Storm Overflow at Cilgerran Wastewater Treatment Works	70	878	100
Dwr Cymru Welsh Water	River Anghof	Letterston East STW SPS	67	849	99.3
Dwr Cymru Welsh Water	Knock Brook	Keeston Works Inlet CSO	102	842	100
Dwr Cymru Welsh Water	Tidal Waters Of Western Cleddau	Merlins Bridge STW/Inlet SPS	107	713	99.1
Dwr Cymru Welsh Water	River Pilau	Pen Y Bryn PS	92	684	99.7
Dwr Cymru Welsh Water	Rubaxton Water	SPITTAL WWTW SPITTAL PEMBS	86	584	46
Dwr Cymru Welsh Water	Nant Hafren	EGLWYSWRW WWTW EGLWYSWRW NR NWPRT	33	567	100
Dwr Cymru Welsh Water	Sandy Haven Pill	Tiers Cross WWTW Inlet CSO Pembrk	140	532	89.1
Dwr Cymru Welsh Water	Fishguard Harbour	Fishguard Slade SPS	72	520	100
Dwr Cymru Welsh Water	Hazelbeach Stream	Waterston WwTW Inlet CSO	242	491	100
Dwr Cymru Welsh Water	Monk Haven Stream	SPS at St Ishmaels WwTW	42	476	100
Dwr Cymru Welsh Water	West Cleddua	CSO@WOLFSDALE SPS	58	349	100
Dwr Cymru Welsh Water	Western Cleddau	Combined Sewer Overflow No. 6	85	315	98.8
Dwr Cymru Welsh Water	Lower Town Harbour, Fishguard	Fishguard Lower Town SPS	76	246	100
Dwr Cymru Welsh Water	Tidal Waters Of Western Cleddau	Picton PS & Picton Fields CSO	77	243	100
Dwr Cymru Welsh Water	Nolton Bay	CSO SERVING NOLTON HAVEN SPS	26	207	100
Dwr Cymru Welsh Water	Afan Daulan	Iron Duke Clynderwen SPS	18	197	100
Dwr Cymru Welsh Water	River Teifi	Abercych SPS	64	167	100
Dwr Cymru Welsh Water	Coastal Waters At Porth Clais	ST DAVID'S WWTW ST DAVID'S PEMBS	26	165	100
Dwr Cymru Welsh Water	Swansell Brook	WALTON WEST STW BALANCING TANK	14	149	99.9
Dwr Cymru Welsh Water	Brandy Brook	NEWGALE SEWAGE TREATMENT WORKS	16	144	100
Dwr Cymru Welsh Water	River Dulas	Newchapel STW CSO	49	130	99.1
Dwr Cymru Welsh Water	Esturail Waters Milford Haven	MILFORD HAVEN STW	50	128	100
Dwr Cymru Welsh Water	Esturial Waters At Hakin Point	MILFORD HAVEN CSO	66	122	99.9
Dwr Cymru Welsh Water	Beggars Reach Daugleddau	LLANGWM WWTW LLANGWM PEMBROKESHIRE	9	118	100
Dwr Cymru Welsh Water	Sprinkle Pill	Hook STW Inlet PS low level CSO	43	117	100
Dwr Cymru Welsh Water	Esturial Waters At Rath	M'Ford Haven Rath CSO Milford Haven	79	112	100
Dwr Cymru Welsh Water	Milford Haven Waterway	MILFORD HAVEN STW	30	111	100
Dwr Cymru Welsh Water	Westfield Pill	CSO at Rosemarket STW	36	83	100
Dwr Cymru Welsh Water	Western Cleddau	CSO 7 Union Hill, Haverfordwest	53	70	69.5
Dwr Cymru Welsh Water	River Teifi	CSO at Rear of Teifi Inn PH, St Dogmaels	18	49	99.5
Dwr Cymru Welsh Water	River Alun	VIC'GE RD ST.DAVIDS.SWO	15	49	99.5
Dwr Cymru Welsh Water	Goodwick Brook	Parrog Goodwick SPS	18	48	99.9
Dwr Cymru Welsh Water	River Anghof	WOLFSCASTLE PS	12	41	99.9
Dwr Cymru Welsh Water	Western Cleddau	NORTHGATE/FRED REES CSO HVRFORDWEST	47	40	100
Dwr Cymru Welsh Water	Tidal Waters Of Western Cleddau	New Quay CSO New Quay Haverfordwest	43	36	100
Dwr Cymru Welsh Water	Merlin'S Brook	Johnston Terminal SPS	17	36	100
Dwr Cymru Welsh Water	River Anghof	Storm Overflow at Wolfscastle Wastewater Treatment Works	19	33	100
Dwr Cymru Welsh Water	Fishguard Harbour	Fishguard Ogof Martha SPS	36	32	88.9
Dwr Cymru Welsh Water	Swanswell Brook	BROADHAVEN SOUTH PS BROADHAVEN ,	15	31	99.5
Dwr Cymru Welsh Water	Milford Haven	NEYLAND P.S. . .	14	28	100
Dwr Cymru Welsh Water	Cwm Mawr Strea	PENYCWM PS	8	23	99.9
Dwr Cymru Welsh Water	Little Haven Stream	LITTLE HAVEN SPS HEAD OF BEACH LIT	5	20	99.1
Dwr Cymru Welsh Water	Est'L Waters Milford Haven	DALE WWTW - CSO	36	19	100
Dwr Cymru Welsh Water	Milford Haven Waterway	BURTON FERRY WWTW NEYLAND PEMBS	19	17	100
Dwr Cymru Welsh Water	Aberach Stream	CSO at St Nicholas STW	23	17	29
Dwr Cymru Welsh Water	Castle Pill	A COMBINED SEWER OVERFLOW AT BEACH	40	16	100
Dwr Cymru Welsh Water	Milford Haven	PROMENADE NEYLAND SWO	29	16	99.8
Dwr Cymru Welsh Water	Goodwick Brook	CSO at Emergent Culvert Goodwick	25	15	98.8
Dwr Cymru Welsh Water	Milford Haven Waterway	NEYLAND WWTW NEYLAND PEMBROKESHIRE	20	13	100
Dwr Cymru Welsh Water	River Alun	PIT ST ST. DAVIDS SWO	18	13	94.1
Dwr Cymru Welsh Water	Deadman'S Lake Stream	STEYNTON SPS	19	11	99.9
Dwr Cymru Welsh Water	Sprincle Pill,Daucleddau	HOOK WwTW	8	9	100
Dwr Cymru Welsh Water	River Teifi	ST.DOGMAELS JEWSONS CSO MAIN CSO EO	2	5	100
Dwr Cymru Welsh Water	Tidal River Solva	SOLVA P.S. . .	6	5	100
Dwr Cymru Welsh Water	Western Cleddau	Castlemorris Wastewater Treatment CSO	11	5	79.1
Dwr Cymru Welsh Water	Swanswell Brook	BROADHAVEN NORTH PUMPING STATION	7	4	97.1
Dwr Cymru Welsh Water	Winterton Marsh Stream	MARLOES WORKS INLET . .	4	3	100
Dwr Cymru Welsh Water	River Teifi	Cilgerran Flyght PS	9	3	89.7
Dwr Cymru Welsh Water	Milford Haven Estuary	NEYLAND PROMENADE CSO , ,	9	3	100
Dwr Cymru Welsh Water	River Hubberston Pill	PRIORY PS	2	1	100
Dwr Cymru Welsh Water	Western Cleddau	MATHRY SPS NR FISHGUARD PEMBROKSHRE	2	1	100
Dwr Cymru Welsh Water	River Plysgog	PENRALLTDRAW COMBINED SEWER CSO	3	1	100
Dwr Cymru Welsh Water	Unnamed Of Brandy Brook	Maes Ffynnon SPS CSO	1	0	100
Dwr Cymru Welsh Water	River Nyfer	The Parrog Newport CSO	0	0	1.8
Dwr Cymru Welsh Water	Cartlett Brook	Crundale Sewage Pumping Station	0	0	73.3
Dwr Cymru Welsh Water	Westfield Pill	Honeyborough SPS CSO	0	0	100
Dwr Cymru Welsh Water	River Alun	PEBBLES ST. DAVIDS SWO	0	0	0
Dwr Cymru Welsh Water	Westfield Pill Via Unnamed Watercourse	Houghton SPS CSO	0	0	97.9
Dwr Cymru Welsh Water	River Teifi	St Dogmaels CSO	0	0	100
Dwr Cymru Welsh Water	Milford Haven Estuary	Nelson Quay SPS CSO	0	0	100
Dwr Cymru Welsh Water	Estuary East Of Sandy Haven	HERBRANDSTON WWTW HERBRANDSTON	0	0	99.8
Dwr Cymru Welsh Water	Castle Pill	M.Haven/Castle Pill CSO Pembs	0	0	100
Dwr Cymru Welsh Water	Fishguard Harbour	FISHGUARD HARBOUR (CRANE) CSO	0	0	100
Dwr Cymru Welsh Water	Westfeild Pill	Gaddarn Reach SPS CSO	0	0	99.9
Dwr Cymru Welsh Water	Porthgain Stream	CROESGOCH WORKS INLET	0	0	100
Dwr Cymru Welsh Water	Pont Shan Brook	CLYNDERWEN WWTW INLET CSO	0	0	0
Dwr Cymru Welsh Water	St Martins Brook	Haverfordwest Hawthorn Rise CSO	0	0	100

Data Sources & Accuracy

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

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. This 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.

Analysing sewage pollution by the Water Industry

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Preseli Pembrokeshire polluted by sewage 5,098 times in 2022 - lasting 47,283 hours

87 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2022

Data Sources & Accuracy

Media Queries

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