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Totals for 2026
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Donate NowPolluted by sewage 1,863 hours in 2026 , monitoring offline 13,365 hours , potential overflows 86 hours so far..
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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Offline/Potential Pollution |
|---|---|---|---|---|---|
| Yorkshire Water | OSWALDKIRK/STW | Holbeck | 80 | 1,132h 19m | 86 h |
| Yorkshire Water | HOWSHAM/STW | River Derwent | 22 | 233h 50m | - |
| Yorkshire Water | FOSTON/STW | Spital Beck | 23 | 204h 34m | - |
| Yorkshire Water | HELMSLEY/STW | River Rye | 34 | 146h 26m | - |
| Yorkshire Water | OULSTON/STW | River Kyle | 41 | 76h 34m | - |
| Yorkshire Water | GILLING EAST/STW | Holbeck | 6 | 45h 35m | - |
| Yorkshire Water | SAWMILL LANE/CSO | River Rye | 9 | 11h 6m | 1 h |
| Yorkshire Water | CRAMBE/STW | River Derwent | 1 | 5h 43m | - |
| Yorkshire Water | AMPLEFORTH/CSO | Holbeck | 3 | 2h 31m | 1,151 h |
| Yorkshire Water | AMPLEFORTH VILLAGE/STW | Holbeck | 6 | 1h 51m | 0 h |
| Yorkshire Water | RYEDALE NEW ROAD/CSO | Wath Beck | 4 | 1h 16m | - |
| Yorkshire Water | Unknown | Unknown | 4 | 0h 49m | - |
| Yorkshire Water | COXWOLD/STW | Green'S Beck | 1 | 0h 31m | - |
| Yorkshire Water | HOVINGHAM/STW | Marrs Beck | 0 | 0h | - |
| Yorkshire Water | BRANDSBY ROAD/NO 2 CSO | Not Matched In Ea Consents Database | 0 | 0h | 6,929 h |
| Yorkshire Water | FIRBY/STW | Derwent | 0 | 0h | 5,281 h |
| Yorkshire Water | CONEYSTHORPE/STW | Mill Hills Beck | 0 | 0h | - |
| Yorkshire Water | RYEDALE CARR LANE/CSO | Holbeck | 0 | 0h | - |
| Yorkshire Water | BRANDSBY ROAD/NO 1 CSO | River Kyle | 0 | 0h | - |
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
