Receiving watercourse
Irish Sea
13 monitored storm overflows record Irish Sea as their receiving watercourse in the National Storm Overflow Hub. Operated by Dwr Cymru Welsh Water and United Utilities.
13
Storm overflows
0
Active right now
0
Monitors offline
351
Spill events · 12 months
70,101h
Recorded discharge · 12 months
2
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.
- UUP01843United Utilitiesinactive
- UUP00870United Utilitiesinactive
- UUP00306United Utilitiesinactive
- UUP02175United Utilitiesinactive
- UUP01523United Utilitiesinactive
- UUP02117United Utilitiesinactive
- UUP00906United Utilitiesinactive
- UUP01238United Utilitiesinactive
- UUP01713United Utilitiesinactive
- UUP02081United Utilitiesinactive
- UUP00455United Utilitiesinactive
- Rhosneigr OverflowDwr Cymru Welsh Waterinactive
- UUP01132United Utilitiesinactive
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.