Water company · South West
Recent spills
Serves Dorset, Somerset, Bristol, Wiltshire, parts of Hampshire. Major rivers: Avon, Stour, Frome, Brue.
Wessex Water operates 1,427 monitored storm overflows. 22 monitors are offline. The data records a cumulative discharge of 19 weeks across this operator's network in the last 30 days across an estimated 356 events. The Truth Engine has 8 open flags for this operator's overflows right now.
1,427
Storm overflows
0
Active right now
22
Monitors offline
8
Open flags
89
Spills · last 7 days
19 weeks
Cumulative discharge · 30 days
42 min
Avg event length · 30 days
1
Spills · last 24 hours
10,033
spill events
5,299h
cumulative discharge
4 days
longest single event
2026-05-06
first event on record
Across 11 water companies in the EA dataset, Wessex Water averaged 2.3h per monitored overflow in the last 30 days. The national median was 3.9h per overflow. ranked 2 of 11 of UK water companies by 30-day spill hours per monitored overflow.
The 12 watercourses with the most Wessex Water overflows discharging into them.