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 1,011 times in 2025 lasting 4,097 hours
Your local MP is Ann Davies (Plaid Cymru) - Find out more about their interests, donors, and voting at They Work For You
Please consider a one-off or small recurring donation. We need your help to keep this site going.
Donate NowHere are all the reported sewage overflow totals for Caerfyrddin in 2025. 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 place all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | River Gwili | Abergwili SPS | 111 | 841 | 99.8 |
| Dwr Cymru Welsh Water | Tywi Estuary | Jewsons CSO Tanerdy Carmarthen | 97 | 641 | 99.9 |
| Dwr Cymru Welsh Water | River Tywi | CSO Pothouse Wharf PS | 102 | 609 | 99.8 |
| Dwr Cymru Welsh Water | Towy | Carmarthen Old Llansteffan Rd CSO | 106 | 478 | 98 |
| Dwr Cymru Welsh Water | River Towy | CARMARTHEN - STATION ROAD PUMP | 125 | 345 | 95.9 |
| Dwr Cymru Welsh Water | River Towy | Morfa Lane CSO, Carmarthen | 120 | 264 | 99 |
| Dwr Cymru Welsh Water | Tywi Estuary | Old Priory Row CSO Parc Hinds PS C | 93 | 219 | 99.9 |
| Dwr Cymru Welsh Water | Unknown Of River Towy | Carmarthen - Sticle Path | 61 | 192 | 96.8 |
| Dwr Cymru Welsh Water | Tawelan Brook | CSO AT JOBSWELL ROAD | 61 | 157 | 77.5 |
| Dwr Cymru Welsh Water | River Towy | SPS at Castle Hill Drainage Area | 86 | 116 | 99.3 |
| Dwr Cymru Welsh Water | Tawelan Brook | Settled Storm Overflow at Brickyard Lane Pumping Station | 22 | 112 | 99.9 |
| Dwr Cymru Welsh Water | Tawelan Brook | Carmarthen Pentremeurig Road CSO | 14 | 67 | 99.4 |
| Dwr Cymru Welsh Water | River Tywi | Park Hinds CSO | 2 | 29 | 99.9 |
| Dwr Cymru Welsh Water | Nant Pwntan | PWNTAN SPS LLANGAIN CARMARTHENSHIRE | 6 | 21 | 99.8 |
| Dwr Cymru Welsh Water | Tawelan | Carmarthen Near Fire Station CSO | 5 | 1 | 100 |
| Dwr Cymru Welsh Water | Tawelon Brook | Pentremeurig Road CSO | 0 | 0 | 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. 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