Plymouth

Polluted by sewage 3,240 times in 2024 lasting 17,990 hours - That's 2.08 years!

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Totals for Plymouth in 2024

94 Sites polluted by South West Water

3,240 sewage dumps

17,990 hours duration

That's 2.08 years! On average 8.9 times a day

Change Over Time

Waterways in Plymouth

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Plymouth 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 locality 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	River Tamar	ERNESETTLE SEWAGE TREATMENT WORKS	134	1,552	74.75
South West Water	Leigham Mill Stream	FORDER VALLEY ROAD CSO	102	1,432	100
South West Water	Long Brook Via Sws	3 ST PETERS CLOSE CSO	115	1,333	100
South West Water	Plymouth Sound/Plym Estuary	PLYMOUTH CENTRAL STW	127	1,062	100
South West Water	River Plym	MARSH MILLS WWTW	98	1,053	100
South West Water	River Tamar	PS-DY2, NORTH YARD, DEVONPORT	103	1,020	100
South West Water	Weston Mill Stream	HONDA GARAGE CSO	74	884	100
South West Water	River Plym	GLENHOLT PUMPING STATION	70	570	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 Tamar Viasws	KINTERBURY CREEK PUMPING STATION	28	281	100
South West Water	Longbrook	MARKET ROAD CSO	56	265	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	Tamerton Lake	WHITLEIGH WOOD CSO	38	169	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	Hamoaze	MACEY STEPS CSO	61	129	97.4
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 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	Southway Stream	SOUTHWAY DRIVE CSO	29	67	94.1
South West Water	River Tamar	ROWING CLUB NO2 CSO	38	67	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	Cattewater	TURNCHAPEL SLIPWAY PUMPING STATION	42	62	100
South West Water	Pennycomequick Stream Via Sws	BARN PARK ROAD CSO	70	59	91.4
South West Water	Honicknowle Stream	HONICKNOWLE CSO	11	54	97.5
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	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	River Plym Estuary	JETTY PUMPING STATION	13	25	100
South West Water	Tamerton Stream	HAYESEND FARM CSO	3	23	98.2
South West Water	Tory Brook Via Sws	NEWNHAM ROAD CSO	33	22	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	River Tamar Via Sws	ERNESETTLE LANE SPORTSGROUND CSO	64	18	95.5
South West Water	Plymouth Sound	20 COMMERCIAL ROAD	8	17	100
South West Water	Honicknowle Stream	GARRICK CLOSE CSO	24	16	100
South West Water	Weston Mill Lake	FLORENCE STREET CSO	42	16	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	River Tamar Estuary	COOMBE ROAD CSO	8	14	91.7
South West Water	Pomphlett Creek	BILLACOMBE PUMPING STATION	17	12	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	River Tamar	KINTERBURY CREEK RIVERSIDE PS	10	9	99.4
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	Hooe Lake Via Sws	HOOE ROAD CSO	19	4	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	River Tamar	BRUNEL BRIDGE CSO	21	3	100
South West Water	Ham Brook	HONICKNOWLE LANE CSO	11	3	84.1
South West Water	Tamerton Lake	TAMERTON FOLIOT PUMPING STATION	5	3	61.2
South West Water	Weston Mill Lake	CAMELS HEAD WWTW	4	2	100
South West Water	River Tamar	ROWING CLUB NO1 CSO	16	2	100
South West Water	Honicknowle Stream Via Sws	CROWNHILL ROAD CSO	3	2	94.5
South West Water	Hooe Lake, Plym Estuary	HOOE LAKE PUMPING STATION	2	2	92.5
South West Water	Plymouth Sound Via Sws	PENNYCOMEQUICK ROUNDABOUT CSO	8	2	100
South West Water	River Tamar Estuary	WATERSIDE PUMPING STATION	4	2	100
South West Water	Plymouth Sound	WEST HOE TUNNEL SHAFT 5B.2	4	1	100
South West Water	Tamar Estuary	OLD FERRY ROAD CSO	5	1	99.4
South West Water	Ham Brook	HAM LANE STORM TANK CSO	5	1	86.3
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	Honicknowle Stream	MOWHAY ROAD NO.2 CSO	2	0	99.2
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	Weston Mill Lake Via W'Course	MAUNSELL CLOSE CSO	2	0	99.5
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	Ham Brook	146 ST. PANCRAS AVENUE CSO	1	0	57.5
South West Water	Honicknowle Stream	CROWNHILL ROAD CSO	0	0	98.4
South West Water	Honicknowle Stream	DENHAM CLOSE CSO	0	0	100
South West Water	Ham Brook	HAM WOODS HAM LANE CSO	0	0	88.8
South West Water	Kinterbury Creek Via W/Crse	R/O 615 WOLSELEY ROAD	0	0	76.6
South West Water	Ham Brook	SHIRLEY GARDENS CSO	0	0	100
South West Water	Honicknowle Stream	TAMAR WAY CSO	0	0	100
South West Water	Tamerton Lake	TAMERTON CLOSE PSEO	0	0	98.1
South West Water	Ham Brook	TREVENEAGUE GRDNS PLAYING FIELD CSO	0	0	97
South West Water	Weston Mill Stream	WESTON MILL CEMETERY TANK CSO	0	0	95.7
South West Water	Weston Mill Creek Via Wtr Crse	WOLSELEY ROAD TANK CSO	0	0	100
South West Water	Pennycomequick Stream Via Sws	2 BICKHAM PARK ROAD CSO	0	0	100
South West Water	Cattewater	20 COMMERCIAL ROAD	0	0	100
South West Water	River Plym Via Sws	28 FINCH CLOSE CSO	0	0	93.6
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	River Plym	EMBANKMENT ROAD PUMPING STATION	0	0	100
South West Water	River Plym Via Sws	LAIRA AVENUE CSO	0	0	100
South West Water	River Plym	MARSH MILLS PUMPING STATION	0	0	100
South West Water	Hamoaze	MOON COVE CSO	0	0	100
South West Water	Hamoaze	MORICE YARD CSO	0	0	91.9
South West Water	Stone House Creek Via Sws	PENNYCOMEQUICK HILL CSO	0	0	100
South West Water	Plymouth Sound	POTTERY QUAY PUMPING STATION	0	0	100
South West Water	Plymouth Sound	WEST HOE PUMPING STATION	0	0	100
South West Water	River Tamar Estuary	CULVER ROAD CSO	0	0	100
South West Water	Saltmill Creek	RIVERVIEW CSO	0	0	100
South West Water	River Yealm Est	ELBURTON SOUTH PS	0	0	100
South West Water	Tory Brook	MOORLAND 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. Live sewage data from Stream Water API

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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Plymouth Polluted by sewage 3,240 times in 2024 lasting 17,990 hours - That's 2.08 years!

Plymouth