Receiving watercourse
River Mersey
50 monitored storm overflows on the River Mersey are listed in the National Storm Overflow Hub. Operated by United Utilities.
This watercourse is part of our featured River Mersey coverage — that page aggregates the whole river, including tributaries and estuary stretches.
50
Storm overflows
0
Active right now
2
Monitors offline
1,159
Spill events · 12 months
3,577h
Recorded discharge · 12 months
3
Open discrepancies
Every monitored overflow· 50
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- UUP00748United Utilitiesoffline
- UUP01926United Utilitiesoffline
- UUP01267United Utilitiesinactive
- UUP00636United Utilitiesinactive
- UUP00326United Utilitiesinactive
- UUP01884United Utilitiesinactive
- UUP02106United Utilitiesinactive
- UUP02154United Utilitiesinactive
- UUP02016United Utilitiesinactive
- UUP00481United Utilitiesinactive
- UUP01771United Utilitiesinactive
- UUP00413United Utilitiesinactive
- UUP01071United Utilitiesinactive
- UUP01866United Utilitiesinactive
- UUP00054United Utilitiesinactive
- UUP01867United Utilitiesinactive
- UUP01500United Utilitiesinactive
- UUP00188United Utilitiesinactive
- UUP01581United Utilitiesinactive
- UUP01964United Utilitiesinactive
- UUP00762United Utilitiesinactive
- UUP01965United Utilitiesinactive
- UUP02072United Utilitiesinactive
- UUP01582United Utilitiesinactive
- UUP01915United Utilitiesinactive
- UUP00816United Utilitiesinactive
- UUP01899United Utilitiesinactive
- UUP00296United Utilitiesinactive
- UUP00610United Utilitiesinactive
- UUP01056United Utilitiesinactive
- UUP00934United Utilitiesinactive
- UUP01143United Utilitiesinactive
- UUP00747United Utilitiesinactive
- UUP02095United Utilitiesinactive
- UUP00064United Utilitiesinactive
- UUP00004United Utilitiesinactive
- UUP00899United Utilitiesinactive
- UUP02022United Utilitiesinactive
- UUP00327United Utilitiesinactive
- UUP00463United Utilitiesinactive
- UUP00375United Utilitiesinactive
- UUP00608United Utilitiesinactive
- UUP02023United Utilitiesinactive
- UUP00187United Utilitiesinactive
- UUP00412United Utilitiesinactive
- UUP02241United Utilitiesinactive
- UUP00462United Utilitiesinactive
- UUP00430United Utilitiesinactive
- UUP01376United Utilitiesinactive
- UUP01878United Utilitiesinactive
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.