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Receiving watercourse

River Mersey Estuary

14 monitored storm overflows on the River Mersey Estuary 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.

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14

Storm overflows

0

Active right now

0

Monitors offline

247

Spill events · 12 months

454h

Recorded discharge · 12 months

0

Open discrepancies

Every monitored overflow· 14

Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.

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Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.

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