Receiving watercourse

Manchester Ship Canal

40 monitored storm overflows on the Manchester Ship Canal are listed in the National Storm Overflow Hub. Operated by United Utilities.

Storm overflows

Active right now

Monitors offline

815

Spill events · 12 months

2,717h

Recorded discharge · 12 months

Open discrepancies

Every monitored overflow· 40

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

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