Receiving watercourse
Mersey Estuary
36 monitored storm overflows record Mersey Estuary as their receiving watercourse in the National Storm Overflow Hub. 1 is reporting an active spill right now. 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.
36
Storm overflows
1
Active right now
0
Monitors offline
600
Spill events · 12 months
608h
Recorded discharge · 12 months
2
Open discrepancies
Currently spilling· 1
Every monitored overflow· 36
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- UUP00243United Utilitiesactive
- UUP00335United Utilitiesinactive
- UUP01161United Utilitiesinactive
- UUP00336United Utilitiesinactive
- UUP01480United Utilitiesinactive
- UUP01924United Utilitiesinactive
- UUP01792United Utilitiesinactive
- UUP01966United Utilitiesinactive
- UUP01811United Utilitiesinactive
- UUP02194United Utilitiesinactive
- UUP00641United Utilitiesinactive
- UUP01469United Utilitiesinactive
- UUP01428United Utilitiesinactive
- UUP01420United Utilitiesinactive
- UUP00644United Utilitiesinactive
- UUP01487United Utilitiesinactive
- UUP01912United Utilitiesinactive
- UUP01831United Utilitiesinactive
- UUP01657United Utilitiesinactive
- UUP00284United Utilitiesinactive
- UUP00831United Utilitiesinactive
- UUP02121United Utilitiesinactive
- UUP01288United Utilitiesinactive
- UUP00182United Utilitiesinactive
- UUP01925United Utilitiesinactive
- UUP00206United Utilitiesinactive
- UUP02140United Utilitiesinactive
- UUP01830United Utilitiesinactive
- UUP00638United Utilitiesinactive
- UUP00879United Utilitiesinactive
- UUP01714United Utilitiesinactive
- UUP01516United Utilitiesinactive
- UUP00821United Utilitiesinactive
- UUP01033United Utilitiesinactive
- UUP01162United Utilitiesinactive
- UUP01320United Utilitiesinactive
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.