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Polluted by sewage 1,224 times in 2024 lasting 6,311 hours
Monitoring fell below 50% in some locations so could be more
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Donate NowHere are all the reported sewage overflow totals for Rhondda 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 locality 1 of the total 24 CSO locations had reporting enabled for less than half the year.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | Rhondda River Fawr | REGENT ST CSO TREORCHY RHONDDA | 184 | 2,216 | 99.8 |
| Dwr Cymru Welsh Water | Nant Clydach | A CSO at Clydach Vale Davies Street | 144 | 813 | 97.5 |
| Dwr Cymru Welsh Water | River Rhondda Fawr | Rear of Richards Terrace CSO | 77 | 811 | 88.5 |
| Dwr Cymru Welsh Water | Rhondda Fawr | Ton Pentre PS CSOTont Pentre RCT | 118 | 754 | 80.7 |
| Dwr Cymru Welsh Water | Rhondda Fawr | Gelligaled Pk CSO Ystrad Rhondda | 104 | 655 | 92.3 |
| Dwr Cymru Welsh Water | Rhondda Fawr | CSO O/S Welcome Inn, Tylacelyn Rd, Penygraig | 94 | 256 | 98.4 |
| Dwr Cymru Welsh Water | Nant Clydach | Railway Terrace CSO, Clydach Vale | 67 | 183 | 98.8 |
| Dwr Cymru Welsh Water | Rhondda Fach River | PONTYGWAITH BRIDGE CSO ASSET 71188 | 55 | 159 | 96.9 |
| Dwr Cymru Welsh Water | River Rhondda | Llwynypia Rd CSO, Tonypandy | 80 | 146 | 97.9 |
| Dwr Cymru Welsh Water | Rhondda Fawr | CSO to rear of 8 Griffin Park | 24 | 60 | 79.3 |
| Dwr Cymru Welsh Water | River Rhondda Fawr | CSO at Junct Ystrad/Church Road Ystrad | 25 | 49 | 8.2 |
| Dwr Cymru Welsh Water | Rhondda River Fawr | Llwynypia SPS | 45 | 46 | 99.8 |
| Dwr Cymru Welsh Water | Rhondda Fawr | REES STREET PUMPING STATION GELLI | 36 | 46 | 99.8 |
| Dwr Cymru Welsh Water | Nant Clydach | CSO at Tonypandy, Rear of De Winton St | 12 | 38 | 96 |
| Dwr Cymru Welsh Water | Rhondda River Via A Culvert | Rees Street 71 CSO, Pentre | 95 | 35 | 99.4 |
| Dwr Cymru Welsh Water | Rhondda Fawr | CSO OFF YNYSCYNON ROAD TREALAW | 17 | 13 | 98.9 |
| Dwr Cymru Welsh Water | Rhondda Fach | Dolgwilym River Bridge CSO | 18 | 11 | 99.6 |
| Dwr Cymru Welsh Water | River Rhondda Fawr | LEWIS STREET CSO & PUMPING STATION | 10 | 5 | 99.8 |
| Dwr Cymru Welsh Water | Rhondda Fawr River | Rear of William St CSO, Ystrad | 5 | 2 | 99.4 |
| Dwr Cymru Welsh Water | Rhondda Fawr | CSO at 136 Tyntyla Road, Tonypandy | 8 | 2 | 96.5 |
| Dwr Cymru Welsh Water | Rhondda Fawr | ELISABETH CLOSE CSO PENTRE RCT | 4 | 2 | 119.4 |
| Dwr Cymru Welsh Water | River Cynon | Pentre - Llewellyn Street CSO | 2 | 0 | 98.8 |
| Dwr Cymru Welsh Water | Rhondda Fawr River | 2 Clarence St CSO, Pentre | 0 | 0 | 99.2 |
| Dwr Cymru Welsh Water | Rhonda Fawr River | TREORCHY CSO - M/H AT SIDE OF BOYS | 0 | 0 | 99.2 |
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.
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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org