South West Devon was polluted by sewage 3,219 times in 2024
lasting 33,066 hours - that's 3.83 years!

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Live data for South West Devon in 2025

So far this year (as of Apr 16, 2025, 1:15 PM) there has been 8,297 hours of sewage overflows - that's 0.96 years!

Totals for South West Devon in 2024

51 Sites polluted by South West Water

3,219 sewage dumps
33,066 h duration

That's 3.83 years! On average 8.8 times a day

Change Over Time

Take Action

Your local MP is Rebecca Smith (Conservative) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near South West Devon

Waterways in South West Devon

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for South West Devon, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online Monitoring Offline Polluting Potentially Polluting Unknown

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for South West Devon in 2024. 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 0 of the total 61 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
South West Water	Milton Stream	STOKE HILL WWTW	231	4,445	98.6
South West Water	River Meavy	GRATTON WASTEWATER TREATMENT WORKS	161	2,842	99.8
South West Water	Unknown	LUTTON STW	228	2,820	100
South West Water	River Erme	IVYBRIDGE STW	161	2,737	100
South West Water	River Meavy	GRATTON CSO	211	2,583	100
South West Water	Silverbridge Lake	SPARKWELL WASTEWATER TREATMENT WORK	126	2,518	100
South West Water	Wembury Bay	WEMBURY WWTW	104	2,230	100
South West Water	River Walkham	BEDFORD BRIDGE CSO	141	2,190	100
South West Water	Long Brook Via Sws	3 ST PETERS CLOSE CSO	115	1,333	100
South West Water	River Walkham	WALKHAMPTON WWTW SSO	77	1,308	84.4
South West Water	River Plym	MARSH MILLS WWTW	98	1,053	100
South West Water	River Tavy	BUCKLAND MONACHORUM WWTW	65	1,014	100
South West Water	Newton Creek	BRIDGEND PUMPING STATION	90	838	98.4
South West Water	River Yealm	LEE MILL PUMPING STATION	70	774	100
South West Water	Unknown	LEE MILL STW	185	769	100
South West Water	Broad Ooze, Yealm Estuary	BRIXTON WASTEWATER TREATMENT WORKS	60	398	100
South West Water	Unknown	UGBOROUGH STW	85	390	100
South West Water	River Erme Estuary	HOLBETON SEWAGE TREATMENT WORKS	103	297	100
South West Water	Longbrook	MARKET ROAD CSO	56	265	100
South West Water	River Erme	PARSONAGE COTTAGE HILL CSO	49	262	100
South West Water	Wembury Bay	WEMBURY BEACH PSCSO/EO	29	261	99
South West Water	River Tavy	HARROWBEER CSO	89	251	97.9
South West Water	River Walkham	CHAPEL LANE CSO	46	246	100
South West Water	River Yealm	CORNWOOD PUMPING STATION	39	244	100
South West Water	English Channel- Heybrook Bay	HEYBROOK BAY PUMPING STATION	51	137	100
South West Water	River Meavy	LAKE LANE CSO	28	126	96.2
South West Water	Tory Brook	PLYMOUTH ROAD CSO	84	108	100
South West Water	Hooe Lake	RADFORD STW	53	104	100
South West Water	River Meavy	CSO ADJ GLENVIEW	30	87	100
South West Water	River Plym Estuary	ORESTON QUAY (NO 2) PUMPING STATION	28	75	100
South West Water	Cattewater	TURNCHAPEL BARRACKS PUMPING STATION	37	72	100
South West Water	Cattewater	TURNCHAPEL SLIPWAY PUMPING STATION	42	62	100
South West Water	Bigbury Bay	PUMPING STATION AT WARREN POINT	10	32	99.1
South West Water	River Yealm	YEALMPTON WWTW	5	26	98.15
South West Water	Cattewater Plym Estuary	MARINE ROAD NO 1 PUMPING STATION	19	26	100
South West Water	Longbrook Stream	DARK STREET LANE CSO	30	25	100
South West Water	Tory Brook Via Sws	NEWNHAM ROAD CSO	33	22	100
South West Water	River Erme	ERMINGTON STW	5	14	100
South West Water	Pomphlett Creek	BILLACOMBE PUMPING STATION	17	12	100
South West Water	Hey Brook	GABBER INJECTOR PUMPING STATION	10	11	100
South West Water	Silverbridge Lake	TINWOOD COMBINED SEWER OVERFLOW	16	7	98.2
South West Water	River Meavy	MEAVY WASTEWATER TREATMENT WORKS	14	6	100
South West Water	Hooe Lake Via Sws	HOOE ROAD CSO	19	4	100
South West Water	River Yealm	TORBRIDGE SOUTH CSO	12	4	100
South West Water	Newton Creek	RIVER SIDE NO 1 CSO	23	4	96.5
South West Water	Silverbridge Lake	WINSTON LANE CSO	14	4	100
South West Water	River Yealm Estuary	COURTWOOD ROAD PSCSO/EO	6	3	100
South West Water	Unknown	CLEARBROOK STW	2	2	90.7
South West Water	Hooe Lake, Plym Estuary	HOOE LAKE PUMPING STATION	2	2	92.5
South West Water	River Yealm	CHURCH WAY CSO	9	1	92.5
South West Water	River Yealm	TORBRIDGE NORTH CSO	1	0	93.2
South West Water	River Yealm Est	ELBURTON SOUTH PS	0	0	100
South West Water	River Erm	ERME ROAD CSO	0	0	100
South West Water	River Erme	PAVILION PUMPING STATION	0	0	100
South West Water	River Erm	STATION ROAD CSO	0	0	100
South West Water	Tory Brook	MOORLAND ROAD CSO	0	0	100
South West Water	River Erme	PLAYING FIELD CSO	0	0	98.5
South West Water	River Erme	BITTAFORD STW	0	0	100
South West Water	Newton Creek	NOSS MAYO PUMPING STATION	0	0	100
South West Water	Newton Creek	KILN QUAY PUMPING STATION	0	0	100
South West Water	English Channelat Wembury Bay	HMS CAMBRIDGE PUMPING STATION	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, 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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