Receiving watercourse
Afon Twrch
7 monitored storm overflows record Afon Twrch as their receiving watercourse in the National Storm Overflow Hub. Operated by Dwr Cymru Welsh Water.
7
Storm overflows
0
Active right now
0
Monitors offline
353
Spill events · 12 months
32,043h
Recorded discharge · 12 months
3
Open discrepancies
Every monitored overflow· 7
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- Llanuwchllyn WwTW OverflowDwr Cymru Welsh Waterinactive
- Felinfach Road Ystradowen Storm OverflowDwr Cymru Welsh Waterinactive
- Bethel Road Cwm-twrch Isaf OverflowDwr Cymru Welsh Waterinactive
- A4068 over River Cwmtwrch Uchaf Storm OverflowDwr Cymru Welsh Waterinactive
- Cwm-twrch Uchaf Car Park Storm OverflowDwr Cymru Welsh Waterinactive
- Ystradgynlais Cwmtwrch Bridge Street Storm OverflowDwr Cymru Welsh Waterinactive
- Ffarmers WwTW OverflowDwr Cymru Welsh Waterinactive
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.