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St Austell and Newquay - 2025 Sewage

Polluted by sewage 10,744 hours in 2025 - That's 1.24 years , monitoring offline 24 hours , potential overflows 95 hours

© OpenStreetMap contributors
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 Austell and Newquay 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 Austell and Newquay

Daily Data

Jan - 1,978 hours
Feb - 936 hours , 68 potential
Mar - 270 hours
Apr - 692 hours
May - 49 hours , 1 potential
Jun - 105 hours , 17 potential
Jul - 52 hours , 8 potential
Aug - 152 hours
Sept - 155 hours
Oct - 182 hours , 0 offline
Nov - 1,760 hours , 3 offline
Dec - 4,408 hours
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 MENAGWINS STW_SSO_ST AUSTELL St Austell River 54 1,154h 52m -
South West Water FOWEY STW_SSO_FOWEY Fowey Estuary 96 941h 14m 28 h
South West Water MENAGWINS STW_SSO_ST AUSTELL St Austell River 53 735h 31m -
South West Water FRADDON STW_SO_FRADDON River Gannel 35 727h 11m -
South West Water NORTH FAL STW_SSO_ST STEVENS Gwindra Stream 29 560h 30m -
South West Water WATERGATE SPS_PSCSOEO_WATERGATE BAY Stream/Atlantic Ocean 24 543h 25m -
South West Water TOWN QUAY SPST_PSCSOEO_FOWEY River Fowey Estuary 153 530h 9m 1 h
South West Water ST DENNIS STW_SO_ST DENNIS River Fal 74 520h 26m -
South West Water POLKERRIS SPST_PSCSOEO_POLKERRIS St Austell Bay 29 482h 39m -
South West Water POLKERRIS SPST_PSCSOEO_POLKERRIS St Austell Bay 28 429h 9m -
South West Water NORTH FAL STW_SSO_ST STEVENS Gwindra Stream 31 367h 19m -
South West Water CAFFA MILL SPS_PSCSOEO_FOWEY River Fowey Estuary 119 357h 24m -
South West Water FOWEY STW_SSO_FOWEY Fowey Estuary 38 282h 26m -
South West Water ST DENNIS STW_SSO_ST DENNIS River Fal 30 270h 36m -
South West Water FRADDON STW_SO_FRADDON River Gannel 39 253h 59m -
South West Water GOONAMARRIS_CSO_NANPEAN Gwindra Stream 21 253h 25m -
South West Water GOLANT SPST_PSCSOEO_GOLANT River Fowey Estuary 14 226h 22m -
South West Water ST DENNIS STW_SSO_ST DENNIS River Fal 30 188h 57m -
South West Water DANIELS LN_CSO_ST AUSTELL Sandy River 22 167h 24m 68 h
South West Water NORTH FAL STW_SO_ST STEVENS Gwindra Stream 26 157h -
South West Water NORTH FAL STW_SO_ST STEVENS Gwindra Stream 42 137h 41m -
South West Water GOONAMARRIS_CSO_NANPEAN Gwindra Stream 32 124h 38m -
South West Water TOWN QUAY SPST_PSCSOEO_FOWEY River Fowey Estuary 29 103h 22m 3 h
South West Water CAFFA MILL SPS_PSCSOEO_FOWEY River Fowey Estuary 24 89h 4m -
South West Water ST DENNIS STW_SO_ST DENNIS River Fal 26 84h 5m -
South West Water MOLINNIS_CSO_BUGLE River Par 20 66h 20m -
South West Water TOWAN HEAD SPS_PSCSOEO_NEWQUAY Atlantic Ocean 15 62h 1m -
South West Water TOWAN HEAD SPS_PSCSOEO_NEWQUAY Atlantic Ocean 19 56h 50m -
South West Water GRAMPOUND SPS_PSCSOEO_GRAMPOUND River Fal 16 46h 54m -
South West Water PAR STW_SSO_ST AUSTELL Unknown 7 45h 25m -
South West Water YELLOW SANDS SPS_PSCSOEO_NEWQUAY Atlantic Ocean 23 45h 12m -
South West Water Grampound No1_CSO_Grampound River Fal 18 44h 8m -
South West Water MOLINNIS_CSO_BUGLE River Par 22 42h 59m -
South West Water DANIELS LN_CSO_ST AUSTELL Sandy River 11 42h 44m -
South West Water YELLOW SANDS SPS_PSCSOEO_NEWQUAY Atlantic Ocean 15 39h 34m -
South West Water CHARLESTOWN SPS_PSCSOEO_CHARLESTOWN St Austell Bay, English Chanel 9 39h 22m -
South West Water GRAMPOUND NO 2_CSO_GRAMPOUND River Fal 16 33h 58m -
South West Water MEVAGISSEY SPST_PSCSOEO_MEVAGISSEY Mevagissey Bay 26 30h 33m -
South West Water ROCHE_CSO_ROCHE Par River 14 30h 20m -
South West Water GRAMPOUND NO 2_CSO_GRAMPOUND River Fal 24 29h 58m -
South West Water GUSTI VEOR_CSO_NEWQUAY Unnamed Ditch,Trenance Lake 38 29h 39m 17 h
South West Water CHARLESTN REMOTE SPS_PSCSOEO_ST AUSTELL St Austell Bay 17 29h 24m -
South West Water LONDON APPRENTICE SPST_PSCSOEO_ST AUSTEL St Austell River 3 28h 39m -
South West Water CHARLESTN REMOTE SPS_PSCSOEO_ST AUSTELL St Austell Bay 14 28h 9m -
South West Water MEVAGISSEY SPST_PSCSOEO_MEVAGISSEY Mevagissey Bay 16 28h 2m -
South West Water PAR NO2 SPST_PSCSOEO_ST AUSTELL River Par 6 26h 25m -
South West Water LOWER STICKER SPS_PSCSOEO_ST AUSTELL Caerhays Stream 6 26h 24m -
South West Water GOLANT SPST_PSCSOEO_GOLANT River Fowey Estuary 28 25h 11m -
South West Water GRAMPOUND SPS_PSCSOEO_GRAMPOUND River Fal 16 23h 59m -
South West Water TREDENHAM CLOSE_CSO_PAR St Blazey Stream 5 16h 43m -
South West Water LOWER STICKER SPS_PSCSOEO_ST AUSTELL Caerhays Stream 8 16h 17m -
South West Water ROCHE_CSO_ROCHE Par River 27 15h 11m -
South West Water ST COLUMB RD_CSO_ST COLUMB River Gannel 30 15h 10m -
South West Water GUSTI VEOR_CSO_NEWQUAY Unnamed Ditch,Trenance Lake 18 13h 40m -
South West Water CHARLESTOWN SPS_PSCSOEO_CHARLESTOWN St Austell Bay, English Chanel 10 11h 41m -
South West Water PAR STW_SSO_ST AUSTELL Unknown 5 9h 34m -
South West Water ST COLUMB RD_CSO_ST COLUMB River Gannel 15 9h 34m -
South West Water POLGOOTH_CSO_ST AUSTELL Polgooth Stream 5 5h 54m -
South West Water FERNPIT SPS_PSCSOEO_NEWQUAY River Gannel 6 5h 24m -
South West Water BEACONSIDE SPS_PSCSOEO_FOXHOLE Stream 7 4h 9m -
South West Water JUNCTION A39 FRADDON_CSO_FRADDON River Gannel 5 4h 4m -
South West Water READYMONEY ROAD_CSO_FOWEY River Fowey Estuary 7 3h 9m -
South West Water WATERGATE SPS_PSCSOEO_WATERGATE BAY Stream/Atlantic Ocean 2 2h 58m -
South West Water GWINDRA_CSO_ST STEPHEN Lappa Valley 4 2h 40m -
South West Water READY MONEY COVE SPS_PSCSOEO_FOWEY River Fowey Estuary 2 2h 37m -
South West Water GWINDRA_CSO_ST STEPHEN Lappa Valley 3 1h 44m -
South West Water PAR NO2 SPST_PSCSOEO_ST AUSTELL River Par 2 1h 42m -
South West Water BEACONSIDE SPS_PSCSOEO_FOXHOLE Stream 2 1h 32m -
South West Water NANSLADRON SPST_PSCSOEO_ST AUSTELL White River 2 1h 30m -
South West Water PENTEWAN SPS_PSCSOEO_ST AUSTELL St Austell River 1 1h 19m -
South West Water TREDENHAM CLOSE_CSO_PAR St Blazey Stream 1 1h 10m -
South West Water Grampound No1_CSO_Grampound River Fal 1 1h 10m -
South West Water FLYCOVE SPS_PSCSOEO_NEWQUAY Newquay Bay 2 1h 6m 0 h
South West Water JUNCTION A39 FRADDON_CSO_FRADDON River Gannel 4 1h 2m -
South West Water WHITEHSE SLIP POINT_CSO_FOWEY River Fowey Estuary 3 1h -
South West Water READY MONEY COVE SPS_PSCSOEO_FOWEY River Fowey Estuary 1 0h 14m -
South West Water PENTEWAN SPS_PSCSOEO_ST AUSTELL St Austell River 1 0h 8m -
South West Water LONDON APPRENTICE SPST_PSCSOEO_ST AUSTEL St Austell River 1 0h 7m -
South West Water NANSLADRON SPST_PSCSOEO_ST AUSTELL White River 1 0h 6m -
South West Water TERRAS SPS_PSCSOEO_ST STEPHEN River Fal 1 0h 3m -
South West Water PORTHPEAN SPS_PSCSOEO_PORTHPEAN St Austell Bay 2 0h 2m -
South West Water PORTMELLON SPS_PSCSOEO_MEVAGISSEY Stream 0 0h -
South West Water PORTHPEAN SPS_PSCSOEO_PORTHPEAN St Austell Bay 0 0h -
South West Water WHITEHSE SLIP POINT_CSO_FOWEY River Fowey Estuary 0 0h -
South West Water TERRAS SPS_PSCSOEO_ST STEPHEN River Fal 0 0h -
South West Water READYMONEY ROAD_CSO_FOWEY River Fowey Estuary 0 0h -
South West Water FLYCOVE SPS_PSCSOEO_NEWQUAY Newquay Bay 0 0h -
South West Water FERNPIT SPS_PSCSOEO_NEWQUAY River Gannel 0 0h -
South West Water POLGOOTH_CSO_ST AUSTELL Polgooth Stream 0 0h -

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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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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