Receiving watercourse
Rhondda Fawr River
13 monitored storm overflows record Rhondda Fawr River as their receiving watercourse in the National Storm Overflow Hub. 1 is reporting an active spill right now. Operated by Dwr Cymru Welsh Water.
13
Storm overflows
1
Active right now
0
Monitors offline
490
Spill events · 12 months
106,517h
Recorded discharge · 12 months
4
Open discrepancies
Currently spilling· 1
Every monitored overflow· 13
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- Hermon Street Treorchy Storm OverflowDwr Cymru Welsh Wateractive
- Ynys Park Storm OverflowDwr Cymru Welsh Waterinactive
- Glynfach Road Porth Storm OverflowDwr Cymru Welsh Waterinactive
- Ystrad Road Church Road Junction Storm OverflowDwr Cymru Welsh Waterinactive
- Tylacelyn Road Hughes Street Storm OverflowDwr Cymru Welsh Waterinactive
- Hill Street Storm OverflowDwr Cymru Welsh Waterinactive
- Griffin Park Pentre Storm OverflowDwr Cymru Welsh Waterinactive
- Lewis Street Pentre Storm OverflowDwr Cymru Welsh Waterinactive
- Tyntyla Road Tonypandy Storm OverflowDwr Cymru Welsh Waterinactive
- Ynyscrug Roundabout Storm OverflowDwr Cymru Welsh Waterinactive
- Ynyscynon Road Storm OverflowDwr Cymru Welsh Waterinactive
- Clarence Street Pentre Storm OverflowDwr Cymru Welsh Waterinactive
- David Street Treherbert 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.