Featured river · mersey
River Mersey
70 miles through Manchester and Liverpool. Once Britain's most polluted river — recovering, but heavily monitored.
128
Storm overflows
0
Active right now
0
Spill events · 24 h
5
Open discrepancies
4
Monitors offline
89
WIMS sampling points
10
Hydrology stations
Truth Engine flags· 5 open
- CriticalExtended spill (>72 h)United Utilities · UUP01909 · Stromford Brook a tributary of River Mersey
- WarnMonitor offlineUnited Utilities · UUP01033 · Mersey Estuary
- WarnMonitor offlineUnited Utilities · UUP01924 · Mersey Estuary
- WarnMonitor offlineUnited Utilities · UUP02154 · River Mersey
- WarnMonitor offlineUnited Utilities · UUP01581 · River Mersey
Recent spill events· last 7 days · 30
- 2026-05-03 10:02 UTCUnited Utilities · UUP02010 · River Mersey Estuary14 min
- 2026-05-03 08:19 UTCUnited Utilities · UUP01162 · Mersey Estuary16 min
- 2026-05-03 08:04 UTCUnited Utilities · UUP01161 · Mersey Estuary21 min
- 2026-05-03 06:08 UTCUnited Utilities · UUP00336 · Mersey Estuary1.8 h
- 2026-05-03 06:06 UTCUnited Utilities · UUP01500 · River Mersey12 min
- 2026-05-03 03:38 UTCUnited Utilities · UUP02125 · River Mersey Estuary56 min
- 2026-05-03 03:23 UTCUnited Utilities · UUP01918 · The Mersey Estuary7 min
- 2026-05-03 02:30 UTCUnited Utilities · UUP01071 · River Mersey1 h
- 2026-05-03 01:56 UTCUnited Utilities · UUP00413 · River Mersey12 min
- 2026-05-03 01:28 UTCUnited Utilities · UUP00639 · River Mersey Estuary36 min
- 2026-05-03 01:22 UTCUnited Utilities · UUP00243 · Mersey Estuary19.2 h
- 2026-05-03 01:22 UTCUnited Utilities · UUP01428 · Mersey Estuary4 min
- 2026-05-03 01:22 UTCUnited Utilities · UUP02169 · River Mersey Estuary (Tidal)14 min
- 2026-05-03 01:19 UTCUnited Utilities · UUP02022 · River Mersey11 h
- 2026-05-03 01:18 UTCUnited Utilities · UUP01659 · Rivacre Brook a tributary of the River Mersey12 min
- 2026-05-03 00:56 UTCUnited Utilities · UUP00899 · River Mersey21 min
- 2026-05-03 00:34 UTCUnited Utilities · UUP01966 · Mersey Estuary2 min
- 2026-05-03 00:34 UTCUnited Utilities · UUP01831 · Mersey Estuary1.1 h
- 2026-05-03 00:30 UTCUnited Utilities · UUP00520 · River Mersey Estuary1.4 h
- 2026-05-03 00:15 UTCUnited Utilities · UUP00335 · Mersey Estuary11.8 h
- 2026-05-03 00:04 UTCUnited Utilities · UUP00636 · River Mersey2.6 h
- 2026-05-03 00:02 UTCUnited Utilities · UUP00481 · River Mersey3.1 h
- 2026-05-02 23:59 UTCUnited Utilities · UUP00641 · Mersey Estuary5 min
- 2026-05-02 23:54 UTCUnited Utilities · UUP01792 · Mersey Estuary27 min
- 2026-05-02 23:54 UTCUnited Utilities · UUP00762 · River Mersey (via a surface water sewer)1.5 h
- 2026-05-02 23:52 UTCUnited Utilities · UUP01899 · Tidal River Mersey4 min
- 2026-05-02 23:40 UTCUnited Utilities · UUP00816 · River Mersey (via a surface water sewer)28 min
- 2026-05-02 23:28 UTCUnited Utilities · UUP02011 · River Mersey Estuary2.9 h
- 2026-05-02 23:28 UTCUnited Utilities · UUP00748 · River Mersey via SW Sewer4.1 h
- 2026-05-02 23:25 UTCUnited Utilities · UUP00644 · Mersey Estuary5.2 h