Media Queries
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org
Please Support Us
We rely on donations to fund our work. Please support us if you can
Polluted by sewage 2,198 hours in 2025
Your local MP is Helen Morgan (Liberal Democrat) - 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 North Shropshire, 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.
We managed to raise £150 in 2024. That's not enough to keep the site running. Please consider a one-off or small recurring donation.
Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Severn Trent Water | ELLESMERE - WHARF MEADOW STW (SSTO) | Tetchill Brook | 32 | 249 h 6m | 10.38 |
| Severn Trent Water | MILE OAK STW (SSTO) | River Morda | 27 | 213 h 39m | 8.88 |
| Dwr Cymru Welsh Water | Whitchurch Rising Sun WwTW Storm Overflow | Wych Brook | 27 | 178 h 30m | 7.42 |
| Severn Trent Water | MORDA - WESTON ROAD (CSO) | River Morda | 22 | 154 h 26m | 6.42 |
| Severn Trent Water | PANT-PLAS CERRIG (STW) | River Vyrnwy | 12 | 144 h 3m | 6 |
| Dwr Cymru Welsh Water | Rhoswiel Bridge Storm Overflow | Tributary of Morlas Brook | 17 | 117 h 23m | 4.88 |
| Dwr Cymru Welsh Water | Whitchurch Park Avenue Storm Overflow | Tributary of Red Brook | 51 | 100 h 47m | 4.17 |
| Severn Trent Water | WEM - ASTON ROAD STW (SSTO) | River Roden | 10 | 99 h 16m | 4.12 |
| Severn Trent Water | MILE OAK STW (SSTO) | River Morda | 13 | 87 h 23m | 3.62 |
| Severn Trent Water | ELLESMERE - WHARF MEADOW STW (SSTO) | Tetchill Brook | 10 | 73 h 44m | 3.04 |
| Severn Trent Water | DRENEWYDD - OSWESTRY (STW) | Common Brook | 5 | 64 h 55m | 2.67 |
| Severn Trent Water | WHITTINGTON - BABBINSWOOD (CSO) | Common Brook | 4 | 53 h 36m | 2.21 |
| Severn Trent Water | OSWESTRY - KNOCKIN STW IPS (CSO) | Weir Brook | 26 | 50 h 58m | 2.08 |
| Severn Trent Water | OSWESTRY - SMITHFIELD MARKET CARPK (CSO) | Oswestry Brook | 33 | 48 h 52m | 2 |
| Severn Trent Water | WEST FELTON STW (CSO & EO) | Weir Brook | 4 | 47 h 30m | 1.96 |
| Severn Trent Water | WEM - DRAWWELL LANE SPS (CSO) | Wem Brook | 6 | 43 h 6m | 1.79 |
| Severn Trent Water | WEM - WELLGATE (CSO) | River Roden | 19 | 37 h 44m | 1.54 |
| Severn Trent Water | ELLESMERE - WHARF ROAD PS (CSO) | Newnes Brook | 25 | 35 h 4m | 1.46 |
| Severn Trent Water | WEM - THE GROVE XX (REAR GARDEN) (CSO) | Tri Of River Roden | 12 | 34 h 1m | 1.42 |
| Severn Trent Water | PREES - HIGHER HEATH STW (SSTO) | Bailey Brook | 6 | 32 h 53m | 1.33 |
| Severn Trent Water | PANT-PLAS CERRIG (STW) | River Vyrnwy | 4 | 32 h 7m | 1.33 |
| Severn Trent Water | GOBOWEN - FERNHILL LANE (CSO) | River Perry | 6 | 30 h 33m | 1.25 |
| Dwr Cymru Welsh Water | St Martins Storm Overflow | Morlais Brook | 5 | 27 h 15m | 1.12 |
| Dwr Cymru Welsh Water | St. Martins Village Hall Storm Overflow | tributary of Morlais Brook | 6 | 25 h | 1.04 |
| Severn Trent Water | DRENEWYDD - OSWESTRY (STW) | Common Brook | 2 | 20 h 55m | 0.83 |
| Severn Trent Water | WHITTINGTON - BABBINSWOOD (CSO) | Common Brook | 3 | 19 h 33m | 0.79 |
| Dwr Cymru Welsh Water | Waterside Close Whitchurch Storm Overflow | Staggs Brook | 13 | 18 h 58m | 0.75 |
| Severn Trent Water | WEM - ASTON ROAD STW (SSTO) | River Roden | 3 | 18 h 45m | 0.75 |
| Severn Trent Water | GOBOWEN - FERNHILL LANE (CSO) | River Perry | 5 | 17 h 5m | 0.71 |
| Dwr Cymru Welsh Water | Park Avenue Whitchurch Storm Overflow | Staggs Brook | 12 | 16 h 53m | 0.67 |
| Severn Trent Water | WEM - WELLGATE (CSO) | River Roden | 7 | 15 h 47m | 0.62 |
| Severn Trent Water | OSWESTRY - SMITHFIELD MARKET CARPK (CSO) | Oswestry Brook | 7 | 14 h 46m | 0.58 |
| Severn Trent Water | ELLESMERE - WHARF ROAD PS (CSO) | Newnes Brook | 5 | 12 h 47m | 0.5 |
| Severn Trent Water | MARKET DRAYTON STW (CSO) | River Tern | 14 | 12 h 21m | 0.5 |
| Severn Trent Water | OSWESTRY - KNOCKIN STW IPS (CSO) | Weir Brook | 6 | 8 h 31m | 0.33 |
| Severn Trent Water | WEST FELTON STW (CSO & EO) | Weir Brook | 1 | 7 h 47m | 0.29 |
| Severn Trent Water | PREES - HIGHER HEATH STW (SSTO) | Bailey Brook | 3 | 5 h 35m | 0.21 |
| Severn Trent Water | WEM - DRAWWELL LANE SPS (CSO) | Wem Brook | 1 | 5 h 31m | 0.21 |
| Severn Trent Water | ELLESMERE - OSWESTRY RD/BEECH DR (CSO) | Newnes Brook | 7 | 5 h 20m | 0.21 |
| Severn Trent Water | MARKET DRAYTON STW (CSO) | River Tern | 5 | 3 h 40m | 0.12 |
| Severn Trent Water | PREES - MILL STREET (CSO) | Sidleymoor Brook | 1 | 3 h 35m | 0.12 |
| Severn Trent Water | ELLESMERE - OSWESTRY RD/BEECH DR (CSO) | Newnes Brook | 2 | 3 h 18m | 0.12 |
| Severn Trent Water | MORDA - WESTON ROAD (CSO) | River Morda | 1 | 2 h 44m | 0.08 |
| Severn Trent Water | OSWESTRY - GOBOWEN RD/BEATRICE ST (CSO) | Common Brook | 1 | 0 h 48m | 0 |
| Severn Trent Water | WEM - THE GROVE XX (REAR GARDEN) (CSO) | Tri Of River Roden | 2 | 0 h 44m | 0 |
| Severn Trent Water | OSWESTRY - GOBOWEN/WHITTINGTON RD (CSO) | Common Brook | 6 | 0 h 44m | 0 |
| Severn Trent Water | GOBOWEN - ST MARTINS ROAD (CSO) | River Perry | 4 | 0 h 30m | 0 |
| Severn Trent Water | PREES - MILL STREET (CSO) | Sidleymoor Brook | 0 | 0 h | 0 |
| Severn Trent Water | GOBOWEN - ST MARTINS ROAD (CSO) | River Perry | 0 | 0 h | 0 |
| Dwr Cymru Welsh Water | Chirk Bank Storm Overflow | River Ceiriog | 0 | 0 h | 0 |
| Severn Trent Water | OSWESTRY - GOBOWEN/WHITTINGTON RD (CSO) | Common Brook | 0 | 0 h | 0 |
| Severn Trent Water | OSWESTRY - GOBOWEN RD/BEATRICE ST (CSO) | Common Brook | 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