Receiving watercourse
Grand Union Canal
7 monitored storm overflows record Grand Union Canal as their receiving watercourse in the National Storm Overflow Hub. Operated by Anglian Water, Severn Trent Water and Thames Water.
This watercourse is part of our featured Grand Union Canal coverage — that page aggregates the whole canal, including tributaries and estuary stretches.
7
Storm overflows
0
Active right now
0
Monitors offline
34
Spill events · 12 months
58h
Recorded discharge · 12 months
0
Open discrepancies
Every monitored overflow· 7
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.