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Here are all the reported sewage overflow totals for Weymouth Harbour in 2025. Sometimes sewage can be being dumped for months at a time.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Wessex Water | Weymouth Harbour | THE MARSH COMBINED SEWER OVERFLOW | 10 | 15 | 100 |
| Wessex Water | Weymouth Harbour | ADMIRAL HARDY CSO | 6 | 9 | 88.1 |
| Wessex Water | Weymouth Harbour | CHICKERELL BOYS CLUB CSO | 20 | 4 | 95.3 |
| Wessex Water | Weymouth Harbour | CHICKERELL ROAD CSO | 6 | 1 | 34 |
| Wessex Water | Weymouth Harbour | WESTON ROAD CSO | 3 | 0 | 100 |
| Wessex Water | Weymouth Harbour | NEWSTEAD ROAD PUMPING STATION | 1 | 0 | 100 |
| Wessex Water | Weymouth Harbour | LONGCROFT ROAD CSO | 1 | 0 | 61.6 |
| Wessex Water | Weymouth Harbour | WARDCLIFFE ROAD CSO | 1 | 0 | 100 |
| Wessex Water | Weymouth Harbour | RADIPOLE LAKE PUMPING STATION | 0 | 0 | 100 |
| Wessex Water | Weymouth Harbour | SPRING ROAD COMBINED SEWER OVERFLOW | 0 | 0 | 100 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org