Gower was polluted by sewage 2,446 times in 2023
lasting 21,563 hours - that's 2.5 years!
- but monitoring was disabled in some locations, so could be more

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Constituency

✔ means we have experimental daily data since 2023

Totals for Gower in 2023

44 Sites polluted by Dwr Cymru Welsh Water

2,446 sewage dumps
21,563 h duration

That's 2.5 years! On average 6.7 times a day

Change Over Time

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Constituencies near Gower

Waterways in Gower

Pollution Summary 2023

Here are all the reported sewage overflow totals for Gower in 2023. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 5 of the total 52 CSO locations had reporting enabled for less than half the year, of which 5 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	Burry Pill	Reynoldson WwTW Settled Storm	207	3,227	98.6
Dwr Cymru Welsh Water	Estuarial Waters Of Swansea Ba	MUMBLES SPS KNAB ROCK MUMBLES SWANS	168	2,920	100
Dwr Cymru Welsh Water	Loughor Estuary	Llannant WWTW Llannant Road Swansea Settled Storm	150	2,631	99.9
Dwr Cymru Welsh Water	River Llan	Cuckoo Mill SPS	120	2,192	99.8
Dwr Cymru Welsh Water	River Tawe	Inco CSO Clydach Swansea	180	2,140	98.3
Dwr Cymru Welsh Water	Loughor Estuary	SSO. PENCLAWDD SEWERAGE SCHEME	131	1,648	97.7
Dwr Cymru Welsh Water	River Loughor	Garnswllt STW Longelin Ammanford Settled Storm	78	1,356	100
Dwr Cymru Welsh Water	River Lliw	CSO BACH Y GWREIDDYN FARM PONTLLIW	257	1,346	96.2
Dwr Cymru Welsh Water	River Lliw	Pont-y-cob Road CSO	105	774	64.4
Dwr Cymru Welsh Water	Burry Estuary	New Penclawdd Sewage PS Penclawdd	69	728	90.2
Dwr Cymru Welsh Water	Loughor Estuary	GOWERTON WwTW	56	336	100
Dwr Cymru Welsh Water	Estuary	LLANRHIDIAN PS EMERG , ,	139	318	99.1
Dwr Cymru Welsh Water	River Lliw	KINGSBRIDGE CSO GORSEINON SWANSEA	72	282	99.9
Dwr Cymru Welsh Water	Lower Clydach River	Canal CSO. Towpath Off Hebron Road, Clydach	85	280	99.1
Dwr Cymru Welsh Water	River Lliw	Rhosog P.S	57	263	99.9
Dwr Cymru Welsh Water	Loughor	Grovesend PS	68	240	100
Dwr Cymru Welsh Water	Loughour Estuary	BEN HUGHES FOUNDRY CSO OPP REV JAME	48	146	73.6
Dwr Cymru Welsh Water	Swansea Bay	SWO. NEAR NORTON AVENUE (POINT	82	119	84.9
Dwr Cymru Welsh Water	Brandy Cove	BISHOPSTON STW BRANDY COVE LANE	22	88	100
Dwr Cymru Welsh Water	Burry Pill	LLANMADOC P.S.NO 2 EMERGEN	7	81	99.6
Dwr Cymru Welsh Water	River Lliw	Gorseinon Factory CSO	18	78	97.6
Dwr Cymru Welsh Water	River Llan	CSO BRYNMOR RD SOC11 GOWERTON S124	51	57	100
Dwr Cymru Welsh Water	Unnamed Stream	HILLEND LLANGENNITH P.S. SSO	18	48	99.8
Dwr Cymru Welsh Water	Washinghouse Brook	ELMGROVE ROAD CSO	21	46	99.4
Dwr Cymru Welsh Water	River Llwchwr	CSO .400 YDS D/S Cluence Dulai	21	28	98.6
Dwr Cymru Welsh Water	Sea	SWO. 50 YARDS BELOW SHELL GARA KNEL	34	27	22.6
Dwr Cymru Welsh Water	Unnamed Stream To Loughor Estu	CSO BRYNAFON ROAD GORSEINON SWANSEA	5	25	69.7
Dwr Cymru Welsh Water	Loughor Estuary	Cefn Stylle P.S. Gowerton	13	19	99.9
Dwr Cymru Welsh Water	Swansea Bay	OUTFALL D1 (CSO 10) JUN OF MUMBLES	28	13	98.4
Dwr Cymru Welsh Water	Swansea Bay	Duns Lane/Park street CSO	25	12	99.9
Dwr Cymru Welsh Water	Clyne River	HEN PARC LANE PUMPING STATION	10	12	37.3
Dwr Cymru Welsh Water	Dulais	Rear of No1 St Teilo St, Pontardulais	9	12	96.8
Dwr Cymru Welsh Water	Limeslade Bay	LIMESLADE PUMPING STATION SWANSEA	19	12	99.8
Dwr Cymru Welsh Water	Burry Pill.	LLANMADOC PS NO. 1 EMERGEN	21	12	100
Dwr Cymru Welsh Water	Loughor Estuary	Holythorne Crofty B Sewage PS	7	6	99.9
Dwr Cymru Welsh Water	Langland Bay	LANGLAND SPS LANGLAND SWANSEA	12	6	100
Dwr Cymru Welsh Water	Loughor	PONTARDULAIS PS EMERG , ,	1	4	99.7
Dwr Cymru Welsh Water	Morlais River	New Crofty C Sewage PS Crofty Gower Crofty C SPS	8	4	82.1
Dwr Cymru Welsh Water	Burry Estuary	BENSON ROAD CSO BENSON RD PENCLAWDD	7	4	14.2
Dwr Cymru Welsh Water	Swansea Bay	FAIRWOOD RD/LYNDEN TREE P H SWANSEA	7	2	99.7
Dwr Cymru Welsh Water	Caswell Bay	CASWELL BAY CAR PARK SPS CASWELL	3	1	100
Dwr Cymru Welsh Water	Swansea Bay	OUTFALL E (CSO 14) JUN OF MUMBLES R	4	1	94.2
Dwr Cymru Welsh Water	River Lliw	GORSEINON 2 S121 BAKO CSO GORSEINON	2	0	99.3
Dwr Cymru Welsh Water	Coastal Waters At Overton Mere	OVERTON STW PORT EYNON	1	0	100
Dwr Cymru Welsh Water	River Tawe	CSO at QUARRY ROAD CLYDACH (POINT 125)	0	0	0
Dwr Cymru Welsh Water	Swansea Bay	OUTFALL A (CSO 201) JUN OF MUMBLES	0	0	100
Dwr Cymru Welsh Water	River Tawe	Heol Y Nant/Sybil Street Clydach CSO	0	0	0
Dwr Cymru Welsh Water	Swansea Bay	OFF LLIPUT LANE POINT 130 CSO SWAN	0	0	100
Dwr Cymru Welsh Water	Lower Clydach River	Storm Overflow at Heol Eithrim	0	0	0
Dwr Cymru Welsh Water	Loughor Estuary Via Surface Water Sewer	Borough Road CSO Gorseinon Swansea	0	0	99
Dwr Cymru Welsh Water	Loughor Estuary Via Surface Water Sewer	HEOL PENTRE BACH CSO GORSEINON	0	0	0
Dwr Cymru Welsh Water	River Lliw	CSO APX 70YDS U/S R'WAY B'GE U	0	0	0

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. 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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