Water company · South West
Currently spilling
Serves Devon, Cornwall, parts of Dorset and Somerset. Major rivers: Tamar, Exe, Tavy, Otter, Plym.
South West Water operates 1,345 monitored storm overflows. 5 are currently spilling. 16 monitors are offline. The data records a cumulative discharge of 1.7 years across this operator's network in the last 30 days across an estimated 3,812 events. The Truth Engine has 154 open flags for this operator's overflows right now.
1,345
Storm overflows
5
Active right now
16
Monitors offline
154
Open flags
953
Spills · last 7 days
1.7 years
Cumulative discharge · 30 days
1.6 h
Avg event length · 30 days
105
Spills · last 24 hours
26,426
spill events
25,323h
cumulative discharge
4 weeks
longest single event
2026-05-06
first event on record
Across 11 water companies in the EA dataset, South West Water averaged 10.8h per monitored overflow in the last 30 days. The national median was 3.9h per overflow. ranked 10 of 11 of UK water companies by 30-day spill hours per monitored overflow.
The 12 watercourses with the most South West Water overflows discharging into them.