St Ives was polluted by sewage 1,615 times in 2024
lasting 13,875 hours - that's 1.61 years!

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Live data for St Ives in 2025

So far this year (as of Apr 16, 2025, 5:45 PM) there has been 4,796 hours of sewage overflows - that's 0.56 years!

Totals for St Ives in 2024

42 Sites polluted by South West Water

1,615 sewage dumps
13,875 h duration

That's 1.61 years! On average 4.4 times a day

Change Over Time

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Your local MP is Andrew George (Liberal Democrat) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near St Ives

Waterways in St Ives

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for St Ives, 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 St Ives 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 48 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	Unknown	PRAZE AN BEEBLE STW	181	3,759	98.8
South West Water	Atlantic / Porth Nanven Stream	COT VALLEY PUMPING STATION	81	1,577	99.9
South West Water	English Channel	THE LIZARD PUMPING STATION	69	1,030	95.6
South West Water	Atlantic Ocean, Off Porthcurno	PORTHCURNO VALLEY PUMPING STATION	57	981	100
South West Water	Unknown	ST KEVERNE STW	60	888	100
South West Water	Unknown	PERRANUTHNOE PUMPING STATION	73	860	100
South West Water	Atlantic	HAYLE SEWAGE TREATMENT WORKS	65	817	100
South West Water	Stream	BOJEWYAN PSCSO/EO	46	698	100
South West Water	River Cober	HELSTON WWTW	52	566	86.9
South West Water	Atlantic Ocean,Off Sennen Cove	SENNEN COVE PUMPING STATION	26	320	100
South West Water	Surface Water Drain To Chyandr	BOLITHO ROAD CSO	96	285	100
South West Water	Ludgvan Stream	LUDGVAN SCHOOL CSO	33	230	96.7
South West Water	Tregaseal Stream	ST JUST (TREGASEAL 1) SSO	41	204	100
South West Water	Atlantic Ocean	CSO AT ATLANTIC HOTEL	43	179	100
South West Water	Trevedran Stream	ST BURYAN WWTW	25	161	100
South West Water	Atlantic / Porth Nanven Stream	BOSORNE ROAD SEWER OVERFLOW	58	132	97.3
South West Water	Local Stream	FINNS CSO	66	127	100
South West Water	Atantic Ocean	LOWER BOSCASWELL CSO	72	104	100
South West Water	River Cober Via Sws	COINAGEHALL STREET CSO	79	102	100
South West Water	Atlantic Ocean Coastal	GEEVOR MINE PUMPING STATION	25	97	100
South West Water	Coverack Cove	COVERACK MILL PS	25	95	100
South West Water	Longrock Stream	GLADSTONE TERRACE NORTH	23	85	100
South West Water	Local Stream	NANCHERROW HILL CSO	43	84	97
South West Water	Polurrian Cove	MULLION TRANSFER PS	21	65	100
South West Water	Atlantic Ocean	BOTALLACK PUMPING STATION	34	64	96.2
South West Water	English Channel	HELLARCHER PUMPING STATION	36	60	100
South West Water	English Channel	CADGWITH NEW ROAD PSCSO/EO	9	60	100
South West Water	Mounts Bay	MOUSEHOLE PUMPING STATION	43	44	100
South West Water	Coverack Cove	COVERACK HARBOUR PSEO/CSO	17	37	100
South West Water	Mounts Bay	LONGROCK INDUSTRIAL ESTATE	8	35	100
South West Water	Local Stream	OUTSIDE 5 TREVARRACK LANE CSO	53	25	100
South West Water	Church Cove	CHURCH COVE ROAD PS	4	22	96.7
South West Water	Atlantic Ocean	BOSWEDDEN PUMPING STATION	11	20	100
South West Water	St Ives Bay Atlantic Ocean	PORTHMINSTER POINT 1 EO	3	11	100
South West Water	Mounts Bay	PORTHLEVEN HARBOUR ATTENUATION	6	11	100
South West Water	English Channel	LAFLOUDER LANE PUMPING STATION	4	10	93.3
South West Water	Mounts Bay English Channel	MOUSEHOLE HARBOUR (SOUTH SLIP) CSO	20	7	100
South West Water	River Cober	HELSTON MARKET PUMPING STATION	2	4	100
South West Water	River Cober	GRANGE ROAD CSO	2	0	86
South West Water	St Ives Bay	BAMALUZ POINT STORM WATER & EO	1	0	100
South West Water	Stream	GOLDSITHNEY PSCSO/EO	1	0	97.4
South West Water	St Ives Bay	WESCOTS QUAY CSO	1	0	100
South West Water	Mounts Bay, English Channel	BREAGESIDE PUMPING STATION (PORTHLE	0	0	100
South West Water	Porthallow Stream	PORTHALLOW SEWAGE PUMPING STATION	0	0	100
South West Water	Mounts Bay	ALBERT PIER PUMPING STATION	0	0	100
South West Water	Red River	CROWLAS BRIDGE PUMPING STATION	0	0	100
South West Water	Helford Creek	SHIPWRIGHTS PUMPING STATION	0	0	100
South West Water	River Cober Via Sws	MONUMENT 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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