Top of the Poops | Constituency | Plymouth Sutton and Devonport| Polluted by South West Water

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✔ means we have experimental daily data since 2023

Live data for Plymouth Sutton and Devonport in 2025

So far this year (as of May 31, 2025, 4:30 PM) there has been 3,052 hours of sewage overflows - that's 0.35 years!

Totals for Plymouth Sutton and Devonport in 2024

53 Sites polluted by South West Water

1,796 sewage dumps

9,489 hours duration

That's 1.1 years! On average 4.9 times a day

Change Over Time

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Your local MP is Luke Pollard (Labour/Co-operative) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near Plymouth Sutton and Devonport

Waterways in Plymouth Sutton and Devonport

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Plymouth Sutton and Devonport, 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.

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Plymouth Sutton and Devonport 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
South West Water	Weston Mill Lake	CAMELS HEAD WWTW	163	2,328	100
South West Water	Leigham Mill Stream	EFFORD MARSH CSO	110	2,130	100
South West Water	Plymouth Sound/Plym Estuary	PLYMOUTH CENTRAL STW	127	1,062	100
South West Water	River Tamar	PS-DY2, NORTH YARD, DEVONPORT	103	1,020	100
South West Water	Plymouth Sound Via Sws	CAMBRIDGE LANE COMBINED SEWER OF	91	464	90.3
South West Water	River Plym Via Sws	LAIRA PARK CSO	103	423	100
South West Water	Sutton Harbour Via Sws	59 BRETONSIDE CSO	70	362	100
South West Water	River Tamar	DOCKYARD NO.3 PUMPING STATION	52	338	100
South West Water	River Plym Via Sws	ARNOLDS POINT PUMPING STATION	26	243	100
South West Water	Plymouth Sound	EASTERN KINGS PUMPING STATION	42	202	100
South West Water	River Plym Via Sws	LIPSON VALE 1 CSO	101	169	100
South West Water	River Plym Via Sws	PIKE ROAD COMBINED SEWER OVERFLOW	83	163	100
South West Water	River Plym Via Sws	LIPSON VALE 2 CSO	59	66	100
South West Water	River Tamar	MUTTON COVE PUMPING STATION	39	63	100
South West Water	Pennycomequick Stream Via Sws	BARN PARK ROAD CSO	70	59	91.4
South West Water	Plymouth Sound	MILLBAY TANKS	10	41	100
South West Water	Stonehouse Creek Via Sws	WILTON ROAD CSO	48	39	100
South West Water	River Plym	TREFIUS PARK COMBINED SEWER OVERFLO	51	29	100
South West Water	River Plym Via Sws	178 BEAUMONT ROAD CSO	47	28	100
South West Water	River Plym Estuary	JETTY PUMPING STATION	13	25	100
South West Water	Plymouth Sound	OCEAN COURT PUMPING STATION	12	20	61.6
South West Water	River Tamar	SALTASH ROAD SPS PLYMOUTH	34	20	100
South West Water	Stonehouse Creek Via Sws	CENTRAL PARK CSO	18	19	93.9
South West Water	Plymouth Sound	20 COMMERCIAL ROAD	8	17	100
South West Water	River Plym Via Sws	JEPHSON ROAD CSO	18	15	100
South West Water	River Plym Via Sws	FARRINGDON ROAD CSO	16	15	100
South West Water	Stonehouse Creek	139 OUTLAND ROAD CSO	27	12	73.9
South West Water	Stonehouse Creek Via Sws	PEVERELL PARK ROAD CSO	26	11	100
South West Water	River Plym Via Sws	1 EDNA TERRACE CSO	14	10	91.1
South West Water	River Plym Via Sws	78 BEAUMONT ROAD CSO	23	9	100
South West Water	Stonehouse Creek	SEYMOUR PLACE CSO	18	9	99.2
South West Water	River Plym Via Sws	SEYMOUR AVENUE/BEAUMONT RD CSO	16	8	99.9
South West Water	River Plym	OPP 44 CARMARTHEN ROAD CSO	33	7	96.5
South West Water	River Plym	R/O GARAGES LANHYDROCK ROAD CSO	28	7	100
South West Water	Leigham Mill Stream	HARLECH CLOSE CSO	12	5	100
South West Water	Stonehouse Creek Via Sws	MILL BRIDGE CSO	10	5	100
South West Water	Plymouth Sound	BARBICAN (SUTTON HARBOUR) TANKS	3	5	96.7
South West Water	River Tamar	EDINBURGH STREET (PS5) PS	9	5	100
South West Water	River Plym Via Sws	SEYMOUR AVENUE/SALISBURY RD CSO	16	4	100
South West Water	River Plym Via Sws	CAVENDISH ROAD CSO	13	3	100
South West Water	Weston Mill Lake	CAMELS HEAD WWTW	4	2	100
South West Water	Plymouth Sound Via Sws	PENNYCOMEQUICK ROUNDABOUT CSO	8	2	100
South West Water	Plymouth Sound	WEST HOE TUNNEL SHAFT 5B.2	4	1	100
South West Water	Stonehouse Creek Via Sws	PARADISE ROAD (GRAVEYARD) CSO	1	0	96.3
South West Water	Stonehouse Creek Via Sws	DALE ROAD CSO	5	0	93
South West Water	River Tamar	DOCKYARD NO.1	1	0	100
South West Water	River Plym Via Sws	45 CRAVEN AVENUE CSO	3	0	100
South West Water	River Plym	HEATHFIELD ROAD CSO	1	0	100
South West Water	River Plym	GWYN ROAD COMBINED SEWER OVERFLOW	1	0	100
South West Water	Stonehouse Creek Via Sws	VICTORIA PARK CSO	2	0	100
South West Water	Millbay Docks Via Sws	TRACEY COURT CSO	2	0	100
South West Water	Millbay Dock Via Sws-Estuarine	ETON PLACE CSO	1	0	100
South West Water	River Plym	OLD LAIRA ROAD JUNCTION CSO	1	0	100
South West Water	Stone House Creek Via Sws	PENNYCOMEQUICK HILL CSO	0	0	100
South West Water	River Plym Via Sws	LAIRA AVENUE CSO	0	0	100
South West Water	Hamoaze	MOON COVE CSO	0	0	100
South West Water	River Plym	EMBANKMENT ROAD PUMPING STATION	0	0	100
South West Water	Cattewater	20 COMMERCIAL ROAD	0	0	100
South West Water	Plymouth Sound	WEST HOE PUMPING STATION	0	0	100
South West Water	Hamoaze	MORICE YARD CSO	0	0	91.9
South West Water	River Plym Via Sws	28 FINCH CLOSE CSO	0	0	93.6
South West Water	River Plym	MARSH MILLS PUMPING STATION	0	0	100
South West Water	Stonehouse Creek	ALLOTMENT CSO	0	0	94.5
South West Water	River Tamar	CORNWALL BEACH (PS3)	0	0	100
South West Water	Plymouth Sound	POTTERY QUAY PUMPING STATION	0	0	100
South West Water	Pennycomequick Stream Via Sws	2 BICKHAM PARK ROAD 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, 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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(C) 2020-2024 Top-Of-The-Poops CC-BY-SA 4.0,
(C) Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2024,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis (C) 2024 Top-Of-The-Poops

Plymouth Sutton and Devonport Polluted by sewage 1,796 times in 2024 lasting 9,489 hours - That's 1.1 years!

Plymouth Sutton and Devonport