Receiving watercourse
River Rhymney
15 monitored storm overflows on the River Rhymney are listed in the National Storm Overflow Hub. Operated by Dwr Cymru Welsh Water.
15
Storm overflows
0
Active right now
0
Monitors offline
109
Spill events · 12 months
41h
Recorded discharge · 12 months
0
Open discrepancies
Every monitored overflow· 15
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- Glan-yr-Afon Lane 2 Storm OverflowDwr Cymru Welsh Waterinactive
- Ystrad Mynach Bridge Storm OverflowDwr Cymru Welsh Waterinactive
- Pentwyngwyn Road Storm OverflowDwr Cymru Welsh Waterinactive
- River Terrace Pengham Storm OverflowDwr Cymru Welsh Waterinactive
- Carno Street Storm OverflowDwr Cymru Welsh Waterunknown
- Heol Y Waun Storm OverflowDwr Cymru Welsh Waterinactive
- Rhymney Walk Storm OverflowDwr Cymru Welsh Waterunknown
- Woodland Place Storm OverflowDwr Cymru Welsh Waterinactive
- Bargoed Old Colliery Washery Storm OverflowDwr Cymru Welsh Waterinactive
- William Street Tir-y-berth Storm OverflowDwr Cymru Welsh Waterinactive
- William Street Fleur-de-lis Storm OverflowDwr Cymru Welsh Waterinactive
- Pant Glas Industrial Estate Storm OverflowDwr Cymru Welsh Waterinactive
- Riverside Park Trethomas Storm OverflowDwr Cymru Welsh Waterinactive
- Began Road Cardiff Storm OverflowDwr Cymru Welsh Waterinactive
- Trelyn Park 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.