Receiving watercourse
The Mersey Estuary
4 monitored storm overflows record The Mersey Estuary as their receiving watercourse 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.
4
Storm overflows
0
Active right now
0
Monitors offline
48
Spill events · 12 months
32h
Recorded discharge · 12 months
1
Open discrepancies
Every monitored overflow· 4
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.