Monmouth polluted by sewage 1,764 times in 2022 - lasting 14,108 hours

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✔ means we have experimental daily data for 2023

Totals for Monmouth in 2022

32 Sites polluted by Dwr Cymru Welsh Water

1,764 sewage dumps
14,108 h duration

That's 1.63 years! On average 4.8 times a day

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Constituencies near Monmouth

Waterways in Monmouth

Pollution Summary 2022

Here are all the reported sewage overflow totals for Monmouth 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	Mynachdy Brook	Bryn Y Gwenin SPS Abergavenny	123	2,781	100
Dwr Cymru Welsh Water	River Lwyd	LLANFRECHFA STORM TANKS PONTHIR	128	1,701	100
Dwr Cymru Welsh Water	River Usk	GOYTRE SEWAGE TREATMENT WORKS NANT Setteled Storm	101	1,495	100
Dwr Cymru Welsh Water	Mounton Brook	Pwllmeyric SPS (CSO)	61	1,401	24.2
Dwr Cymru Welsh Water	Clawdd Brook	CSO at Great Oak STW	61	821	99.8
Dwr Cymru Welsh Water	River Usk	Llangybi STW Llangybi Usk Settled Storm	125	734	97.8
Dwr Cymru Welsh Water	River Usk	Usk STW Settled Storm	106	677	99.7
Dwr Cymru Welsh Water	Clydach River	CLYDACH CSO	68	659	100
Dwr Cymru Welsh Water	River Usk	Settled Storm Sewage Tanks at Pandy WwTW	52	580	100
Dwr Cymru Welsh Water	River Wye	Tintern Main SPS	210	521	100
Dwr Cymru Welsh Water	River Wye	Settled Storm Sewage from Monmouth WwTW	62	431	99.9
Dwr Cymru Welsh Water	River Usk	Settled Storm Sewage from Llanfoist Wastewater Treatment Works	55	393	100
Dwr Cymru Welsh Water	River Clydach	Maesygwartha SPS and CSO	36	389	25.5
Dwr Cymru Welsh Water	River Honddu	CSO at Pandy WWTW	39	304	100
Dwr Cymru Welsh Water	River Wye Estuary	Chepstow North Fairfield SPS	78	294	100
Dwr Cymru Welsh Water	Usk River	ABERBAIDEN STW MONMOUTH	51	268	99.9
Dwr Cymru Welsh Water	Berthin Brook	Little Mill CSO, Panty Pwdin	26	123	99.7
Dwr Cymru Welsh Water	River Usk	Mill Street Screens CSO Abergaven	50	91	100
Dwr Cymru Welsh Water	River Lwyd	Chapel Lane CSO	34	90	99.8
Dwr Cymru Welsh Water	River Wye Estuary	Chepstow North SPS The Back	67	67	99.8
Dwr Cymru Welsh Water	River Wye	Monmouth 2 CSO	38	58	99.8
Dwr Cymru Welsh Water	Rivr Wye	WARREN SLADE SEWAGE PUMPING STATION	3	57	98.9
Dwr Cymru Welsh Water	River Wye	Thornwell Road CSO	37	34	93.9
Dwr Cymru Welsh Water	River Wye	CSO at Welsh Street Chepstow	43	32	100
Dwr Cymru Welsh Water	River Lwyd Via Culvert And Unnamed Watercourse	Rear of 15 Llwyn Onn CSO Croesyceiliog	24	26	91.2
Dwr Cymru Welsh Water	Nant Y Wilcae	RAGLAN STW CHEPSTOW ROAD RAGLAN	12	19	100
Dwr Cymru Welsh Water	River Lwyd	7 Olway Close CSO, Llanyravon	25	18	100
Dwr Cymru Welsh Water	Mounton Brook	Mathern SPS	2	10	100
Dwr Cymru Welsh Water	River Monnow	CSO at Monmouth Town Pumping Station	14	8	100
Dwr Cymru Welsh Water	River Clydach	Glangrwyney Rd CSO, Gilwern	23	7	99.3
Dwr Cymru Welsh Water	River Wye	Raglan Way CSO	9	4	96.1
Dwr Cymru Welsh Water	River Lwyd	103 Beaumaris Drive Cwmbran CSO	1	0	99.9
Dwr Cymru Welsh Water	River Lwyd	2 Llangorse Road CSO Llanyravon	0	0	97.5
Dwr Cymru Welsh Water	Nant Wilcae	Raglan CSO No. 1	0	0	0
Dwr Cymru Welsh Water	Olway Brook	RAILWAY COTTAGE CSO	0	0	100
Dwr Cymru Welsh Water	River Lwyd	3 Olway close CSO Llanyravon	0	0	0
Dwr Cymru Welsh Water	River Wye Estuary	Chepstow South SPS Hunger Pill STW	0	0	0
Dwr Cymru Welsh Water	Blaen Bran Brook	Llanfrechra Rose Cottage CSO	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

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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Monmouth polluted by sewage 1,764 times in 2022 - lasting 14,108 hours

32 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2022

Data Sources & Accuracy

Media Queries

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