Receiving watercourse
River Cynon
45 monitored storm overflows record River Cynon as their receiving watercourse in the National Storm Overflow Hub. 1 is reporting an active spill right now. Operated by Dwr Cymru Welsh Water.
45
Storm overflows
1
Active right now
0
Monitors offline
313
Spill events · 12 months
32,698h
Recorded discharge · 12 months
6
Open discrepancies
Currently spilling· 1
Every monitored overflow· 45
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- Pontcynon Pipe Bridge Storm OverflowDwr Cymru Welsh Wateractive
- Miskin Road Railway Storm OverflowDwr Cymru Welsh Waterinactive
- Oxford Street Miskin Road Storm OverflowDwr Cymru Welsh Waterinactive
- River Row Abercynon OverflowDwr Cymru Welsh Waterinactive
- Mikes Field Storm OverflowDwr Cymru Welsh Waterinactive
- Aberaman Park West Storm OverflowDwr Cymru Welsh Waterinactive
- Monk Street No1 Storm OverflowDwr Cymru Welsh Waterinactive
- Canal Road Cwmbach Storm OverflowDwr Cymru Welsh Waterinactive
- Bailey Street Storm OverflowDwr Cymru Welsh Waterinactive
- Cwmbach Storm OverflowDwr Cymru Welsh Waterinactive
- Penrhiwceiber Point D Storm OverflowDwr Cymru Welsh Waterinactive
- Park Hill Mountain Ash OverflowDwr Cymru Welsh Waterinactive
- Merthyr Road Bridge Storm OverflowDwr Cymru Welsh Waterinactive
- Pontbren Storm OverflowDwr Cymru Welsh Waterinactive
- Dean Street Aberdare Storm OverflowDwr Cymru Welsh Waterinactive
- Meirion Street Roundabout Trecynon Storm OverflowDwr Cymru Welsh Waterinactive
- Station Street Aberdare Storm OverflowDwr Cymru Welsh Waterunknown
- Bute Place Hirwaun Storm OverflowDwr Cymru Welsh Waterinactive
- Trenant 1 Storm OverflowDwr Cymru Welsh Waterinactive
- Well Place Storm OverflowDwr Cymru Welsh Waterinactive
- Wyndham Crescent Aberaman Storm OverflowDwr Cymru Welsh Waterinactive
- Hamilton Street Storm OverflowDwr Cymru Welsh Waterinactive
- Cynon Terrace Penrhiwceiber OverflowDwr Cymru Welsh Waterinactive
- Cardiff Road Aberaman Storm OverflowDwr Cymru Welsh Waterinactive
- Bro Deg 2 Storm OverflowDwr Cymru Welsh Waterinactive
- Tan Y Bryn Gardens Llwydcoed OverflowDwr Cymru Welsh Waterinactive
- Penrhiwceiber Station Storm OverflowDwr Cymru Welsh Waterinactive
- Bro Deg 1 Storm OverflowDwr Cymru Welsh Waterinactive
- New Road Mountain Ash Storm OverflowDwr Cymru Welsh Waterinactive
- Glassbrook Terrace Storm OverflowDwr Cymru Welsh Waterinactive
- Wellington St No1 Storm overflowDwr Cymru Welsh Waterinactive
- Park View Terrace Storm OverflowDwr Cymru Welsh Waterinactive
- Cwmbach Maeshyfryd Stoem OverflowDwr Cymru Welsh Waterinactive
- Bryngolwg Storm OverflowDwr Cymru Welsh Waterinactive
- Erw Las Rear Footpath Storm OverflowDwr Cymru Welsh Waterinactive
- Sion Terrace Storm OverflowDwr Cymru Welsh Waterinactive
- Duffryn Road Mountain Ash OverflowDwr Cymru Welsh Waterinactive
- Commercial Street Aberdare OverflowDwr Cymru Welsh Waterinactive
- Bro Deg Canal Road Junction Storm OverflowDwr Cymru Welsh Waterinactive
- Pit Place Cwmbach OverflowDwr Cymru Welsh Waterinactive
- Bron Haul Storm OverflowDwr Cymru Welsh Waterinactive
- Hirwaun Mangoed Storm OverflowDwr Cymru Welsh Waterunknown
- David Street Aberaman Storm OverflowDwr Cymru Welsh Waterinactive
- Cardiff Road Mountain Ash Storm OverflowDwr Cymru Welsh Waterinactive
- Llewellyn Street Pentre Storm 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.