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Polluted by sewage 8,961 hours in 2025 - That's 1.04 years
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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Staffordshire Moorlands, 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 Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Severn Trent Water | WARSLOW STW (SSTO) | Warslow Brook | 130 | 1,699 h 11m | 70.79 |
| Severn Trent Water | WARSLOW STW (SSTO) | Warslow Brook | 48 | 1,029 h 53m | 42.88 |
| Severn Trent Water | FROGHALL STW (SSTO) | River Churnet | 52 | 926 h 28m | 38.58 |
| United Utilities | Whitemore PS | Biddulph Brook, Rvr Dane | 58 | 855 h 5m | 35.62 |
| Severn Trent Water | FROGHALL STW (SSTO) | River Churnet | 33 | 666 h 21m | 27.75 |
| Severn Trent Water | ENDON STW (SSTO | Endon Brook | 54 | 522 h 52m | 21.75 |
| Severn Trent Water | ENDON STW (SSTO | Endon Brook | 26 | 257 h 24m | 10.71 |
| United Utilities | Whitemore PS | Biddulph Brook, Rvr Dane | 20 | 236 h 34m | 9.83 |
| Severn Trent Water | CHEDDLETON - STATION ROAD (CSO) | River Churnet | 11 | 227 h 43m | 9.46 |
| United Utilities | BIDDULPH WwTW | Biddulph Brook | 28 | 192 h 17m | 8 |
| Severn Trent Water | WATERHOUSES STW (SSTO) | Groundwater | 19 | 169 h 41m | 7.04 |
| United Utilities | BIDDULPH WwTW | Biddulph Brook | 17 | 166 h 34m | 6.92 |
| Severn Trent Water | ALTON STW (SSTO) | River Churnet | 16 | 143 h 39m | 5.96 |
| Severn Trent Water | FROGHALL STW (CSO) | River Churnet | 48 | 133 h 55m | 5.54 |
| Severn Trent Water | WINKHILL (CSO) | River Hamps | 10 | 125 h 37m | 5.21 |
| Severn Trent Water | LEEK - MACCLESFIELD ROAD (CSO) | River Churnet | 42 | 100 h 4m | 4.17 |
| Severn Trent Water | KINGSLEY HOLT - SHAWE PARK ROAD (CSO) | Mobberley Brook | 18 | 96 h 36m | 4 |
| Severn Trent Water | ALTON STW (SSTO) | River Churnet | 6 | 96 h 18m | 4 |
| United Utilities | BIDDULPH WwTW | Biddulph Brook | 54 | 94 h 39m | 3.92 |
| Severn Trent Water | WINKHILL (CSO) | River Hamps | 8 | 93 h 42m | 3.88 |
| Severn Trent Water | BROOKHOUSES - BROOKHOUSE WAY (CSO) | River Tean | 22 | 93 h 13m | 3.88 |
| Severn Trent Water | KINGSLEY HOLT - SHAWE PARK ROAD (CSO) | Mobberley Brook | 12 | 84 h 21m | 3.5 |
| Severn Trent Water | FROGHALL STW (CSO) | River Churnet | 18 | 77 h 26m | 3.21 |
| United Utilities | BIDDULPH WwTW | Biddulph Brook | 18 | 75 h 7m | 3.12 |
| United Utilities | Forge Mill PS | Biddulph Brook | 16 | 70 h 21m | 2.92 |
| Severn Trent Water | CHEADLE - QUEEN STREET/OAKAMOOR RD (CSO) | Cecilly Brook | 30 | 63 h 21m | 2.62 |
| Severn Trent Water | CHEADLE - TEAN ROAD (CSO) | Cecilly Brook | 29 | 56 h 47m | 2.33 |
| Severn Trent Water | ALTON - SALTERSFORD LANE (CSO) | River Churnet | 17 | 50 h 43m | 2.08 |
| United Utilities | Forge Mill PS | Biddulph Brook | 8 | 50 h 7m | 2.08 |
| Severn Trent Water | WATERHOUSES STW (SSTO) | Groundwater | 6 | 46 h 53m | 1.92 |
| Severn Trent Water | LEEK STW (SSTO) | River Churnet | 8 | 33 h 39m | 1.38 |
| Severn Trent Water | IPSTONES PS (CSO) | Ipstones Brook | 27 | 31 h 48m | 1.29 |
| Severn Trent Water | LEEK - MACCLESFIELD ROAD (CSO) | River Churnet | 12 | 31 h 41m | 1.29 |
| United Utilities | O/S 57 WOODHOUSE LANE CSO | Biddulph Brook | 18 | 28 h 2m | 1.17 |
| Severn Trent Water | LEEK - NORTH STREET (CSO) | River Churnet | 38 | 27 h 26m | 1.12 |
| Severn Trent Water | WERRINGTON - CLOUGH LANE (CSO) | River Trent | 16 | 27 h 17m | 1.12 |
| Severn Trent Water | LEEK - JUNCTION RD (OLD STN YARD) (CSO) | River Churnet | 32 | 25 h 18m | 1.04 |
| Severn Trent Water | TITTESWORTH (SSO) | River Churnet | 3 | 22 h 41m | 0.92 |
| Severn Trent Water | CHEADLE - TEAN ROAD (CSO) | Cecilly Brook | 9 | 21 h 8m | 0.88 |
| Severn Trent Water | BROOKHOUSES - BROOKHOUSE WAY (CSO) | River Tean | 6 | 20 h 28m | 0.83 |
| Severn Trent Water | CHEDDLETON (STW) | River Churnet | 7 | 17 h 28m | 0.71 |
| Severn Trent Water | CHEADLE - QUEEN STREET/OAKAMOOR RD (CSO) | Cecilly Brook | 7 | 16 h 55m | 0.67 |
| United Utilities | O/S 57 WOODHOUSE LANE CSO | Biddulph Brook | 7 | 16 h 12m | 0.67 |
| Severn Trent Water | LEEK - VICARAGE ROAD X (CSO) | River Churnet | 12 | 14 h 33m | 0.58 |
| Severn Trent Water | CHEDDLETON (STW) | River Churnet | 3 | 14 h 4m | 0.58 |
| Severn Trent Water | KNYPERSLEY - TUNSTALL ROAD (CSO) | River Trent | 8 | 11 h 46m | 0.46 |
| United Utilities | West Street CSO | Biddulph Brook | 10 | 10 h 44m | 0.42 |
| United Utilities | Whitegates pumping station (41004) (STA0099) | Biddulph Brook | 1 | 10 h 8m | 0.42 |
| Severn Trent Water | WERRINGTON - CLOUGH LANE (CSO) | River Trent | 4 | 9 h 51m | 0.38 |
| Severn Trent Water | CHEDDLETON HEATH - SPICERSTONE (CSO) | River Churnet | 16 | 9 h 35m | 0.38 |
| Severn Trent Water | LEEK STW (SSTO) | River Churnet | 1 | 9 h 30m | 0.38 |
| Severn Trent Water | LEEK - NORTH STREET (CSO) | River Churnet | 11 | 9 h 3m | 0.38 |
| Severn Trent Water | ALTON- NEW ROAD (STATION BANK) (CSO) | River Churnet | 7 | 7 h 29m | 0.29 |
| Severn Trent Water | IPSTONES PS (CSO) | Ipstones Brook | 4 | 5 h 50m | 0.21 |
| Severn Trent Water | OAKAMOOR - CHURCH BANK (CSO) | River Churnet | 11 | 5 h 37m | 0.21 |
| Severn Trent Water | TITTESWORTH (SSO) | River Churnet | 4 | 4 h 33m | 0.17 |
| Severn Trent Water | LEEK - JUNCTION RD (OLD STN YARD) (CSO) | River Churnet | 7 | 3 h 25m | 0.12 |
| Severn Trent Water | BIDDULPH - BROWN LEES ROAD (CSO) | River Trent | 1 | 2 h 16m | 0.08 |
| United Utilities | Whitegates pumping station (41004) (STA0099) | Biddulph Brook | 3 | 1 h 54m | 0.04 |
| Severn Trent Water | OAKAMOOR - CHURCH BANK (CSO) | River Churnet | 1 | 1 h 54m | 0.04 |
| Severn Trent Water | KNYPERSLEY - TUNSTALL ROAD (CSO) | River Trent | 2 | 1 h 45m | 0.04 |
| Severn Trent Water | CHEDDLETON HEATH - SPICERSTONE (CSO) | River Churnet | 4 | 1 h 36m | 0.04 |
| United Utilities | Halls Road CSO | Gillow Shaw, Biddulph Brk | 1 | 0 h 58m | 0 |
| Severn Trent Water | ALTON - SALTERSFORD LANE (CSO) | River Churnet | 5 | 0 h 46m | 0 |
| United Utilities | West Street CSO | Biddulph Brook | 2 | 0 h 20m | 0 |
| Severn Trent Water | IPSTONES - BROOKFIELDS ROAD (CSO) | Blackbank Brook | 1 | 0 h 17m | 0 |
| Severn Trent Water | CHEADLE - BEDBROOK FARM (SSO) | River Perry | 1 | 0 h 15m | 0 |
| United Utilities | Halls Road CSO | Gillow Shaw, Biddulph Brk | 0 | 0 h | 0 |
| Severn Trent Water | BIDDULPH - BROWN LEES ROAD (CSO) | River Trent | 0 | 0 h | 0 |
| Severn Trent Water | WATERHOUSES - A523 (SSO) | River Hamps | 0 | 0 h | 0 |
| Severn Trent Water | ALTON- NEW ROAD (STATION BANK) (CSO) | River Churnet | 0 | 0 h | 0 |
| Severn Trent Water | CHEDDLETON - STATION ROAD (CSO) | River Churnet | 0 | 0 h | 0 |
| Severn Trent Water | LEEK - VICARAGE ROAD X (CSO) | River Churnet | 0 | 0 h | 0 |
| Severn Trent Water | IPSTONES - BROOKFIELDS ROAD (CSO) | Blackbank Brook | 0 | 0 h | 0 |
| Severn Trent Water | WATERHOUSES - A523 (SSO) | River Hamps | 0 | 0 h | 0 |
| Severn Trent Water | CHEADLE - BEDBROOK FARM (SSO) | River Perry | 0 | 0 h | 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.
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