Receiving watercourse
Sirhowy River
28 monitored storm overflows record Sirhowy River as their receiving watercourse in the National Storm Overflow Hub. Operated by Dwr Cymru Welsh Water.
28
Storm overflows
0
Active right now
0
Monitors offline
148
Spill events · 12 months
5,538h
Recorded discharge · 12 months
1
Open discrepancies
Every monitored overflow· 28
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- St. James Close Storm OverflowDwr Cymru Welsh Waterinactive
- Llwyn Helyg Storm OverflowDwr Cymru Welsh Waterinactive
- Pont Gwaith Farm Lane Storm OverflowDwr Cymru Welsh Waterinactive
- Wyllie Halt Storm OverflowDwr Cymru Welsh Waterinactive
- Pontllanfraith Gelligroes Mill Road Storm OverflowDwr Cymru Welsh Waterinactive
- Gelligroes Roundabout A472 Storm OverflowDwr Cymru Welsh Waterinactive
- Commercial street near Sirhowy river Storm OverflowDwr Cymru Welsh Waterinactive
- Dukestown road Tredegar Storm OverflowDwr Cymru Welsh Waterinactive
- Vale Terrace 1 Storm OverflowDwr Cymru Welsh Waterinactive
- Tredegar Greenfield Ter Storm OverflowDwr Cymru Welsh Waterinactive
- Rhiw Syr Dafydd Hill Storm OverflowDwr Cymru Welsh Waterinactive
- Vale Terrace 2 Storm OverflowDwr Cymru Welsh Waterinactive
- Oakfield Roundabout Storm OverflowDwr Cymru Welsh Waterinactive
- Morgan Street Tredegar Storm OverflowDwr Cymru Welsh Waterinactive
- Cwmgelli Blackwood Storm OverflowDwr Cymru Welsh Waterinactive
- Woodfield Park Crescent Blackwood OverflowDwr Cymru Welsh Waterinactive
- Park Road Abercynon Storm OverflowDwr Cymru Welsh Waterinactive
- Pontllanfraith Tram Road Storm OverflowDwr Cymru Welsh Waterinactive
- South of Nine Mile Point Road Wattsville Storm OverflowDwr Cymru Welsh Waterinactive
- Merthyr Road A4048 Roundabout Storm OverflowDwr Cymru Welsh Waterinactive
- South of Pochin Crescent Storm OverflowDwr Cymru Welsh Waterinactive
- Cwm Road Argoed Storm OverflowDwr Cymru Welsh Waterinactive
- Rock and Fountain Playing fields Storm OverflowDwr Cymru Welsh Waterinactive
- Markham Manmoel Crossing Storm OverflowDwr Cymru Welsh Waterunknown
- Islwyn Road Storm OverflowDwr Cymru Welsh Waterinactive
- Tredegar Street Storm OverflowDwr Cymru Welsh Waterinactive
- Ladies Row Storm OverflowDwr Cymru Welsh Waterinactive
- Railway Cottages 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.