Water company · North West
Currently spilling
Serves Cumbria, Lancashire, Greater Manchester, Cheshire, Merseyside. Major rivers: Mersey, Ribble, Lune, Eden.
United Utilities operates 2,263 monitored storm overflows. 2 are currently spilling. 43 monitors are offline. The data records a cumulative discharge of 2.4 years across this operator's network in the last 30 days across an estimated 3,116 events. The Truth Engine has 92 open flags for this operator's overflows right now.
2,263
Storm overflows
2
Active right now
43
Monitors offline
92
Open flags
779
Spills · last 7 days
2.4 years
Cumulative discharge · 30 days
1.4 h
Avg event length · 30 days
73
Spills · last 24 hours
46,469
spill events
47,979h
cumulative discharge
3 weeks
longest single event
2026-05-06
first event on record
Across 11 water companies in the EA dataset, United Utilities averaged 9.1h per monitored overflow in the last 30 days. The national median was 3.9h per overflow. ranked 9 of 11 of UK water companies by 30-day spill hours per monitored overflow.
The 12 watercourses with the most United Utilities overflows discharging into them.