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 719 times in 2024 lasting 3,891 hours
Monitoring fell below 50% in some locations so could be more
Your local MP is Stephen Doughty (Labour/Co-operative) - Find out more about their interests, donors, and voting at They Work For You
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 NowHere are all the reported sewage overflow totals for Cardiff South and Penarth 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 1 of the total 23 CSO locations had reporting enabled for less than half the year.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | Coastal Waters Off Lavernock P | COG MOORS STW CDIFF RD DINAS POWYS | 70 | 922 | 99.8 |
| Dwr Cymru Welsh Water | Severn Estuary | CARDIFF CENTRAL SPS TREMORFA | 93 | 668 | 99 |
| Dwr Cymru Welsh Water | Sully Brook | CSO and EO at Penarth Stonylands Pumping Station, Penarth | 52 | 522 | 93.5 |
| Dwr Cymru Welsh Water | Severn Estuary | BROCKHILL RISE & LAVERNOCK RD SSO'S | 85 | 372 | 98.1 |
| Dwr Cymru Welsh Water | Severn Estuary | PENARTH HEAD SEWAGE PUMPING STATION | 70 | 340 | 99.8 |
| Dwr Cymru Welsh Water | River Ely | Penarth Llandough Moors Cardiff CSO, Cardiff | 27 | 193 | 77.8 |
| Dwr Cymru Welsh Water | Severn Estuary | Settled Storm Overflow at Cardiff Eastern District Pumping Station | 50 | 183 | 99.8 |
| Dwr Cymru Welsh Water | Severn Estuary | CARDIFF EAST DISTRICT LONG OUTFALL | 50 | 183 | 99.8 |
| Dwr Cymru Welsh Water | Sully Brook | Sully Moors Road SPS | 31 | 115 | 99.8 |
| Dwr Cymru Welsh Water | Cardiff Bay | Grangetown SPS | 29 | 110 | 96.8 |
| Dwr Cymru Welsh Water | Severn Estuary | KYMIN PS PENARTH CARDIFF , | 42 | 99 | 99.2 |
| Dwr Cymru Welsh Water | R Cadoxton | ST CADOCS AVENUE CSO | 16 | 74 | 99.4 |
| Dwr Cymru Welsh Water | River Taff Estuary | Harrowby Street PS | 31 | 28 | 83.6 |
| Dwr Cymru Welsh Water | River Ely | Cogan Storm Tank Cogan Penarth | 4 | 22 | 99.9 |
| Dwr Cymru Welsh Water | River Taff | Cardiff Wood St/Havelock St Jn CSO | 23 | 19 | 99 |
| Dwr Cymru Welsh Water | River Ely Estuary | Cogan SPS | 11 | 11 | 99.8 |
| Dwr Cymru Welsh Water | River Ely | Penarth Road WDPS | 8 | 10 | 99.8 |
| Dwr Cymru Welsh Water | River Taff | Park Street PS | 12 | 8 | 99.8 |
| Dwr Cymru Welsh Water | Severn Estuary | Penarth Marina SPS | 9 | 3 | 38.1 |
| Dwr Cymru Welsh Water | Severn Estuary | OCEAN PARK PS TREMORFA FORESHORE RO | 3 | 1 | 99.8 |
| Dwr Cymru Welsh Water | Sully Brook | A Combined Sewer Overflow Rear Of | 2 | 0 | 99.4 |
| Dwr Cymru Welsh Water | Cardiff Bay | Curran SPS | 1 | 0 | 99.8 |
| Dwr Cymru Welsh Water | Coldbrook | ARGAE LANE CSO ARGAE LANE BARRY | 0 | 0 | 99.4 |
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