Featured river · thames
River Thames
215 miles through Gloucestershire, Oxfordshire, Berkshire, and London. The most-monitored river in England.
123
Storm overflows
0
Active right now
1
Spill events · 24 h
10
Open discrepancies
4
Monitors offline
175
WIMS sampling points
53
Hydrology stations
Spill record· last 12 months · across the river
634
spill events
+2013% vs prior 12m
182,079h
cumulative discharge
+194713% vs prior 12m
13 weeks
longest single event (all time)
2021-10-21
first event on record
Truth Engine flags· 10 open
- CriticalExtended spill (>72 h)Anglian Water · AWS01194 · THAMES ESTUARY
- CriticalExtended spill (>72 h)Thames Water · TWL00600 · Tributary of River Thames
- CriticalExtended spill (>72 h)Thames Water · TWL00237 · River Thames
- WarnDry-weather spillAnglian Water · AWS00395 · THAMES ESTUARY
- WarnDry-weather spillAnglian Water · AWS00396 · THAMES ESTUARY
- WarnMonitor offlineThames Water · TWL00575 · River Thames
- WarnMonitor offlineThames Water · TWL00237 · River Thames
- WarnMonitor offlineAnglian Water · AWS01168 · Thames Estuary
- WarnMonitor offlineThames Water · TWL00360 · River Thames
- CautionDry-weather spillAnglian Water · AWS01194 · THAMES ESTUARY
Recent spill events· last 7 days · 5
- 2026-08-04 09:42 UTCAnglian Water · AWS00395 · THAMES ESTUARY5 min
- 2026-08-02 13:20 UTCThames Water · TWL00282 · River Thames6 min
- 2026-08-02 01:29 UTCAnglian Water · AWS00396 · THAMES ESTUARY2 min
- 2026-08-01 10:22 UTCThames Water · TWL00282 · River Thames4 min
- 2026-07-31 11:12 UTCAnglian Water · AWS01194 · THAMES ESTUARY0 min