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Polluted by sewage 575 times in 2024 lasting 5,450 hours
So far this year (as of May 29, 2025, 2:15 AM) there has been 1,371 hours of sewage overflows
Your local MP is Jo White (Labour) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Bassetlaw, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.
Each CSO has a row, the most recent data is on the right hand side.
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Donate NowHere are all the reported sewage overflow totals for Bassetlaw in 2024. 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 CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Severn Trent Water | Carlton Beck | HODSOCK WASTEWATER TREATMENT WORKS | 116 | 1,810 | 97.6 |
| Severn Trent Water | River Poulter | NORTON STW | 65 | 834 | 99.8 |
| Severn Trent Water | River Poulter | LANGWITH CSO | 91 | 608 | 99.7 |
| Severn Trent Water | River Ryton | WORKSOP (MANTON) STW | 50 | 551 | 99.8 |
| Severn Trent Water | River Idle | RETFORD SEWAGE TREATMENT WORKS | 31 | 321 | 97.2 |
| Severn Trent Water | River Idle/Maun/Carr Dyke | AREAS OF EAST RETFORD/STM/EMERG OF | 29 | 216 | 100 |
| Severn Trent Water | River Trent | WALKERINGHAM STW | 27 | 211 | 100 |
| Severn Trent Water | Harworth Sewage Dyke | HARWORTH SEWAGE TREATMENT WORKS | 34 | 178 | 100 |
| Severn Trent Water | Tetheringrass Drain | TETHERINGRASS LANE PUMPING STATION | 20 | 133 | 100 |
| Severn Trent Water | River Poulter | NETHER LANGWITH STW | 25 | 129 | 95.1 |
| Severn Trent Water | Millwood Brook - Creswell Arm | CRESWELL SEWAGE PUMPING STATION | 32 | 126 | 100 |
| Severn Trent Water | Harworth Dyke | HARWORTH PUMPING STATION | 15 | 85 | 100 |
| Severn Trent Water | River Idle | BRACKEN LANE PUMPING STATION | 7 | 84 | 100 |
| Severn Trent Water | Walling Wells Brook | CARLTON SPS - STORM/EMERGENCY OF | 12 | 67 | 94.8 |
| Severn Trent Water | Oldcoates Dyke | BLYTH (NORNAY) PUMPING STATION | 6 | 36 | 91.9 |
| Severn Trent Water | River Idle | LONDON ROAD CSO | 6 | 35 | 95.2 |
| Severn Trent Water | River Idle | MATTERSEY THORPE STW | 3 | 9 | 100 |
| Severn Trent Water | River Idle | CHURCH HOUSE PUMPING STATION | 2 | 3 | 100 |
| Severn Trent Water | River Ryton | BAWTRY ROAD PUMPING STATION | 3 | 2 | 84.9 |
| Severn Trent Water | Unnamed Ranskill Brook | RANSKILL SEWAGE TREATMENT WORKS | 1 | 2 | 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. This 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