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Polluted by sewage 438 times in 2025 lasting 979 hours
Monitoring was disabled in some locations, so could be more
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Donate NowHere are all the reported sewage overflow totals for Truro in 2025. 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 place 1 of the total 23 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year. Of these 1 had zero reporting.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| South West Water | Truro River Estuary | TRURO (NEWHAM) STW | 51 | 668 | 100 |
| South West Water | Freshwater | BOSVIGO LANE CSO | 8 | 95 | 100 |
| South West Water | River Kenwyn[S] | ROBERTS OPE CSO | 38 | 56 | 100 |
| South West Water | River Kenwyn | VICTORIA SQUARE CSO | 41 | 36 | 97.9 |
| South West Water | River Allen | TRELANDER HIGHWAY CSO | 46 | 32 | 100 |
| South West Water | River Kenwyn | EDWARD STREET CSO | 57 | 31 | 98 |
| South West Water | River Allen | OLD BRIDGE STREET CAR PARK CSO | 18 | 17 | 100 |
| South West Water | River Tinney | CALENICK PUMPING STATION | 6 | 17 | 100 |
| South West Water | Truro River | NEWHAM ROAD PUMPING STATION | 5 | 8 | 100 |
| South West Water | River Allen | PAULS TERRACE CSO | 8 | 3 | 94 |
| South West Water | River Kenwyn | HENDRA ROAD CSO | 12 | 2 | 91.9 |
| South West Water | River Kenwyn | ST GEORGES ROAD (REAR OF NO16) CSO | 8 | 2 | 100 |
| South West Water | River Kenwyn Via Sws | CALENICK STREET CSO | 120 | 1 | 99 |
| South West Water | River Allen Via Sws | ST CLEMENT'S HILL CSO | 4 | 1 | 100 |
| South West Water | River Allen | CAMPFIELD HILL CSO | 3 | 1 | 100 |
| South West Water | Truro River | MORLAIX AVENUE (FYFFES SLIPWAY) CSO | 2 | 0 | 96.8 |
| South West Water | River Kenwyn | FRANCES STREET CSO TRURO | 2 | 0 | 100 |
| South West Water | River Kenwyn | FAIRMANTLE STREET CSO | 2 | 0 | 100 |
| South West Water | River Kenwyn Via Sws | KING STREET CSO | 3 | 0 | 100 |
| South West Water | River Kenwyn Via Sws | TABERNACLE STREET CSO | 2 | 0 | 100 |
| South West Water | River Kenwyn | LEMON MEWS CSO | 2 | 0 | 100 |
| South West Water | River Kenwyn | CASTLE STREET CSO | 0 | 0 | 92.8 |
| South West Water | Kenwyn River | O/S 8 CALLENICK STREET CSO | 0 | 0 | 0 |
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.
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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org