Receiving watercourse
Rhondda Fawr River
13 monitored storm overflows record Rhondda Fawr River as their receiving watercourse in the National Storm Overflow Hub. Operated by Dwr Cymru Welsh Water.
13
Storm overflows
0
Active right now
0
Monitors offline
375
Spill events · 12 months
40,329h
Recorded discharge · 12 months
3
Open discrepancies
Every monitored overflow· 13
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- Ystrad Road Church Road Junction Storm OverflowDwr Cymru Welsh Waterinactive
- Lewis Street Pentre Storm OverflowDwr Cymru Welsh Waterinactive
- Ynys Park Storm OverflowDwr Cymru Welsh Waterinactive
- Hermon Street Treorchy Storm OverflowDwr Cymru Welsh Waterinactive
- Glynfach Road Porth Storm OverflowDwr Cymru Welsh Waterinactive
- Tylacelyn Road Hughes Street 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
- Hill Street Storm OverflowDwr Cymru Welsh Waterinactive
- Griffin Park Pentre Storm OverflowDwr Cymru Welsh Waterunknown
- 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.