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St Ives - 2025 Sewage

Polluted by sewage 12,936 hours in 2025 - That's 1.5 years , monitoring offline 2,473 hours , potential overflows 116 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in St Ives for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Constituencies near St Ives

Daily Data

Jan - 2,153 hours , 0 potential
Feb - 1,795 hours , 4 potential
Mar - 551 hours , 110 potential
Apr - 460 hours , 1 potential
May - 1 hours , 744 offline
Jun - 62 hours , 365 offline
Jul - 10 hours , 476 offline
Aug - 48 hours , 116 offline
Sept - 148 hours
Oct - 54 hours
Nov - 1,845 hours , 63 offline
Dec - 5,748 hours , 321 offline
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
South West Water PRAZE AN BEEBLE STW_SSO_PRAZE AN BEEBLE Unknown 114 2,323 h 44m -
South West Water PRAZE AN BEEBLE STW_SSO_PRAZE AN BEEBLE Unknown 59 1,402 h 39m -
South West Water COT VALLEY_PSCSOEO_ST JUST Atlantic / Porth Nanven Stream 52 1,207 h 21m -
South West Water COT VALLEY_PSCSOEO_ST JUST Atlantic / Porth Nanven Stream 51 884 h 57m -
South West Water FISHERMANS SQUARE_CSO_MOUSEHOLE Mounts Bay English Channel 39 709 h 24m -
South West Water BOJEWYAN SPS_PSCSOEO_ST JUST Stream 26 600 h 4m -
South West Water PERRANUTHNOE SPS_PSCSOEO_MARAZION Unknown 34 551 h 5m -
South West Water LUDGVAN SCHOOL_CSO_CROWLAS Ludgvan Stream 26 469 h 15m -
South West Water THE LIZARD SPST_PSCSOEO_CHURCH COVE English Channel 35 412 h 36m 4 h
South West Water PORTHCURNO SPS_PSCSOEO_PENZANCE Atlantic Ocean, Off Porthcurno 17 328 h 26m -
South West Water ST BURYAN STW_SSO_ST BURYAN Trevedran Stream 29 286 h 3m -
South West Water THE LIZARD SPST_PSCSOEO_CHURCH COVE English Channel 21 282 h 56m -
South West Water BOJEWYAN SPS_PSCSOEO_ST JUST Stream 20 272 h 16m -
South West Water HELSTON STW_SSO_HELSTON River Cober 19 262 h 19m -
South West Water FISHERMANS SQUARE_CSO_MOUSEHOLE Mounts Bay English Channel 46 232 h 1m -
South West Water TREGESEAL STW_SO_ST JUST Tregaseal Stream 14 222 h 48m -
South West Water BOLITHO RD_CSO_PENZANCE Surface Water Drain To Chyandr 71 200 h 21m 0 h
South West Water HELLARCHER SPS_PSCSOEO_THE LIZARD English Channel 24 140 h 22m -
South West Water BOLITHO RD_CSO_PENZANCE Surface Water Drain To Chyandr 27 123 h 57m -
South West Water SENNEN SPS_PSCSOEO_LANDS END Atlantic Ocean,Off Sennen Cove 9 117 h 6m -
South West Water GLADSTONE TERRACE NORTH_CSO_PENZANCE Longrock Stream 17 107 h 51m -
South West Water SENNEN SPS_PSCSOEO_LANDS END Atlantic Ocean,Off Sennen Cove 11 107 h 47m -
South West Water HELSTON STW_SSO_HELSTON River Cober 19 107 h 42m 56 h
South West Water CHURCH COVE RD SPS_PSCSOEO_CHURCH COVE Church Cove 18 102 h 30m -
South West Water HELLARCHER SPS_PSCSOEO_THE LIZARD English Channel 44 101 h 43m -
South West Water LUDGVAN SCHOOL_CSO_CROWLAS Ludgvan Stream 20 96 h 22m -
South West Water LOWER BOSCASWELL_CSO_ST JUST Atantic Ocean 44 93 h 54m -
South West Water GEEVOR MINE SPST_PSCSOEO_BOSCASWELL Atlantic Ocean Coastal 14 82 h 57m -
South West Water PORTHCURNO SPS_PSCSOEO_PENZANCE Atlantic Ocean, Off Porthcurno 7 67 h 47m -
South West Water ST KEVERNE STW_SSO_ST KEVERNE Unknown 14 64 h 3m 59 h
South West Water COVERACK MILL SPST_PSCSOEO_THE LIZARD Coverack Cove 10 63 h 29m -
South West Water FINNS_CSO_PENZANCE Local Stream 18 57 h 59m -
South West Water TREGESEAL STW_SO_ST JUST Tregaseal Stream 6 51 h 16m -
South West Water GEEVOR MINE SPST_PSCSOEO_BOSCASWELL Atlantic Ocean Coastal 17 47 h 43m -
South West Water PERRANUTHNOE SPS_PSCSOEO_MARAZION Unknown 21 43 h 45m 0 h
South West Water ATLANTIC HOTEL_CSO_ST MARYS Atlantic Ocean 38 39 h 54m -
South West Water CADGWITH SPS_PSCSOEO_CADGWITH English Channel 3 38 h 10m -
South West Water BOSORNE RD 1_CSOEO_ST JUST Atlantic / Porth Nanven Stream 22 38 h 1m -
South West Water FINNS_CSO_PENZANCE Local Stream 26 37 h 54m -
South West Water COVERACK MILL SPST_PSCSOEO_THE LIZARD Coverack Cove 16 37 h 2m -
South West Water NANCHERROW HILL_CSO_ST JUST Local Stream 22 35 h 17m 476 h
South West Water MERES VALLEY SPST_PSCSOEO_MULLION Polurrian Cove 14 34 h 57m -
South West Water COINAGEHALL ST_CSO_HELSTON River Cober Via Sws 30 32 h 46m 1,379 h
South West Water HARBOUR SPS_PSCSOEO_PORTHLEVEN Mounts Bay 7 31 h 58m 3 h
South West Water LOWER BOSCASWELL_CSO_ST JUST Atantic Ocean 20 30 h -
South West Water CADGWITH SPS_PSCSOEO_CADGWITH English Channel 7 28 h 32m -
South West Water COINAGEHALL ST_CSO_HELSTON River Cober Via Sws 20 28 h 27m -
South West Water BOTALLACK_PSCSOEO_TREGESEAL Atlantic Ocean 22 26 h 52m -
South West Water ST BURYAN STW_SSO_ST BURYAN Trevedran Stream 11 26 h 3m -
South West Water BOTALLACK_PSCSOEO_TREGESEAL Atlantic Ocean 14 25 h 34m -
South West Water BOSORNE RD 1_CSOEO_ST JUST Atlantic / Porth Nanven Stream 14 23 h 45m 337 h
South West Water GLADSTONE TERRACE NORTH_CSO_PENZANCE Longrock Stream 10 20 h 25m 0 h
South West Water BOSWEDDEN SPS_PSCSOEO_CAPE CORNWALL Atlantic Ocean 8 19 h 12m -
South West Water HARBOUR SPS_PSCSOEO_PORTHLEVEN Mounts Bay 7 19 h 2m -
South West Water MOUSEHOLE SPS_PSCSOEO_MOUSEHOLE Mounts Bay 14 13 h 33m -
South West Water GULVAL TREVARRACK LANE_CSO_PENZANCE Local Stream 22 12 h 23m -
South West Water NANCHERROW HILL_CSO_ST JUST Local Stream 8 10 h 39m -
South West Water ST KEVERNE STW_SSO_ST KEVERNE Unknown 3 10 h 36m 43 h
South West Water ATLANTIC HOTEL_CSO_ST MARYS Atlantic Ocean 11 10 h 14m -
South West Water MERES VALLEY SPST_PSCSOEO_MULLION Polurrian Cove 4 9 h 49m -
South West Water LAFLOUDER LANE SPS_PSCSOEO_MULLION English Channel 2 9 h 33m -
South West Water GOLDSITHNEY SPS_PSCSOEO_GOLDSITHNEY Stream 4 8 h 52m -
South West Water PORTHMINSTER SPS_PSCSOEO_PORTHMINSTER St Ives Bay Atlantic Ocean 5 6 h 27m -
South West Water MOUSEHOLE SPS_PSCSOEO_MOUSEHOLE Mounts Bay 9 6 h 1m -
South West Water GULVAL TREVARRACK LANE_CSO_PENZANCE Local Stream 9 4 h 37m -
South West Water NEW GRIMSBY SPS_PSCSOEO_TRESCO Atlantic Ocean 4 4 h 15m -
South West Water SOUTH SLIP_CSO_MOUSEHOLE Mounts Bay English Channel 9 3 h 39m -
South West Water BOSWEDDEN SPS_PSCSOEO_CAPE CORNWALL Atlantic Ocean 2 3 h 31m -
South West Water SOUTH SLIP_CSO_MOUSEHOLE Mounts Bay English Channel 7 3 h 21m -
South West Water LONGROCK IND ESTATE SPS_PSCSOEO_LONGROCK Mounts Bay 8 3 h 14m -
South West Water PORTHGWIDDEN SPST_PSCSOEO_ST IVES St Ives Bay 2 2 h 55m -
South West Water PORTHGWIDDEN SPST_PSCSOEO_ST IVES St Ives Bay 1 2 h 3m -
South West Water WESTCOTTS QUAY TANK_CSO_ST IVES St Ives Bay 2 2 h 1m 110 h
South West Water NEW GRIMSBY SPS_PSCSOEO_TRESCO Atlantic Ocean 2 1 h 39m -
South West Water BOSORNE RD 2_CSOEO_ST JUST Atlantic / Porth Nanven Stream 2 1 h 20m -
South West Water LONGROCK IND ESTATE SPS_PSCSOEO_LONGROCK Mounts Bay 2 0 h 59m -
South West Water PORTHMINSTER SPS_PSCSOEO_PORTHMINSTER St Ives Bay Atlantic Ocean 1 0 h 49m -
South West Water CHYANDOUR SPST_PSCSOEO_PENZANCE Mounts Bay 1 0 h 49m -
South West Water COVERACK HARBOUR SPS_PSCSOEO_THE LIZARD Coverack Cove 4 0 h 41m 116 h
South West Water HELSTON MARKET SPST_PSCSOEO_HELSTON River Cober 2 0 h 38m -
South West Water COVERACK HARBOUR SPS_PSCSOEO_THE LIZARD Coverack Cove 2 0 h 25m -
South West Water HELSTON MARKET SPST_PSCSOEO_HELSTON River Cober 1 0 h 21m -
South West Water WESTCOTTS QUAY TANK_CSO_ST IVES St Ives Bay 1 0 h 18m -
South West Water SHIPWRIGHTS SPS_PSCSOEO_HELFORD Helford Creek 1 0 h 4m -
South West Water BREAGESIDE SPS_PSCSOEO_PORTHLEVEN Mounts Bay, English Channel 0 0 h 0 h
South West Water PORTHALLOW SPST_PSCSOEO_HELFORD Porthallow Stream 0 0 h 0 h
South West Water BOSORNE RD 2_CSOEO_ST JUST Atlantic / Porth Nanven Stream 0 0 h -
South West Water CHYANDOUR SPST_PSCSOEO_PENZANCE Mounts Bay 0 0 h -
South West Water CROWLAS BRIDGE SPS_PSCSOEO_CROWLAS Red River 0 0 h -
South West Water LAFLOUDER LANE SPS_PSCSOEO_MULLION English Channel 0 0 h -
South West Water GOLDSITHNEY SPS_PSCSOEO_GOLDSITHNEY Stream 0 0 h -
South West Water CHURCH COVE RD SPS_PSCSOEO_CHURCH COVE Church Cove 0 0 h -
South West Water SHIPWRIGHTS SPS_PSCSOEO_HELFORD Helford Creek 0 0 h -
South West Water GRANGE RD S.A. TANK_CSO_HELSTON River Cober 0 0 h -

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.

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Analysing sewage pollution by the Water Industry

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