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Here are all the reported sewage overflow totals for River Amman in 2025. Sometimes sewage can be being dumped for months at a time.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | River Amman | CSO 33 5M DOWNSTREAM OF PIPE BRIDGE | 128 | 1,782 | 99.9 |
| Dwr Cymru Welsh Water | River Amman | CSO Near 11 Upper Station Rd | 102 | 963 | 99.9 |
| Dwr Cymru Welsh Water | River Amman | CSO 28 AT MANHOLE 89 NR AMMAN RFC | 87 | 791 | 98.9 |
| Dwr Cymru Welsh Water | River Amman | CSO 37, Manhole 24B, Betws Rd Bridge | 91 | 489 | 99.2 |
| Dwr Cymru Welsh Water | River Amman | CSO 22 SW CORNER OF DISUSED TIP | 52 | 386 | 99.9 |
| Dwr Cymru Welsh Water | River Amman | CS0 34 100M DOWNSTREAM OF BRIDGE | 37 | 229 | 99.9 |
| Dwr Cymru Welsh Water | River Amman | CSO 36 Manhole 31c Opp Bettws Pk | 72 | 216 | 98.2 |
| Dwr Cymru Welsh Water | River Amman | Penpound Lane CSO | 56 | 208 | 94.6 |
| Dwr Cymru Welsh Water | River Amman | CSO 29 At Manhole 76c Nr Hospital | 54 | 189 | 99.9 |
| Dwr Cymru Welsh Water | River Amman | CSO 21 NR FORGE WASHERY BRYNAMMAN | 60 | 144 | 99.4 |
| Dwr Cymru Welsh Water | River Amman | CSO 23 Manhole 125B Nr Brynbach FM | 52 | 135 | 99.7 |
| Dwr Cymru Welsh Water | River Amman | Station Road CSO, Brynamman | 50 | 131 | 99.5 |
| Dwr Cymru Welsh Water | River Amman | CSO 38 500 M UP/STRM CONF LOUGHER | 59 | 120 | 99.9 |
| Dwr Cymru Welsh Water | River Amman | CSO 31 Manhole 72C Maesgrenig | 35 | 68 | 99.4 |
| Dwr Cymru Welsh Water | River Amman | CSO 19 HALL STREET BRYNAMMAN | 13 | 16 | 99.1 |
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