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Polluted by sewage 316 times in 2025 lasting 3,839 hours
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Donate NowHere are all the reported sewage overflow totals for Mid Buckinghamshire 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 constituency all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Thames Water | Scotsgrove Brook | STONE WASTEWATER TREATMENT WORKS | 44 | 652 | 98 |
| Thames Water | Ludgershall Brook | LUDGERSHALL WWTW | 52 | 616 | 100 |
| Thames Water | Horsenden Stream | PRINCES RISBOROUGH STW, SUMMERLEYS | 36 | 564 | 100 |
| Thames Water | Scotsgrove Brook | HADDENHAM WWTW | 37 | 552 | 99.4 |
| Thames Water | Shabbington Brook | SHABBINGTON WWTW | 23 | 321 | 87.9 |
| Thames Water | Oxon Ray | GRENDON UNDERWOOD WWTW | 31 | 306 | 99.7 |
| Thames Water | Fleet Marston Brook | WADDESDON WWTW | 25 | 281 | 99.9 |
| Thames Water | Worminghallbrook | WORMINGHALL STW, WORMINGHALL, BUCKS | 23 | 263 | 100 |
| Thames Water | Summerstown Ditch | Marsh Gibbon | 22 | 208 | 98.6 |
| Thames Water | Dorton Brook | DORTON STW, DORTON, BUCKS | 12 | 44 | 93.2 |
| Thames Water | River Thame | CUDDINGTON WWTW | 4 | 25 | 100 |
| Anglian Water | Padbury Brook | TWYFORD - SCHOOL LANE TPS | 6 | 2 | 81.4 |
| Anglian Water | Poundon Brook | POUNDON TERMINAL PS | 1 | 0 | 100 |
| Thames Water | Crendon Stream | LONG CRENDON STW, LONG CRENDON, BUC | 0 | 0 | 99.9 |
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