Featured river · don
River Don
70 miles through South Yorkshire, joining the Trent at the Aire. Severe legacy industrial pollution + active sewage discharges.
113
Storm overflows
0
Active right now
3
Spill events · 24 h
5
Open discrepancies
1
Monitors offline
7
WIMS sampling points
16
Hydrology stations
Spill record· last 12 months · across the river
1,556
spill events
+9625% vs prior 12m
1,275h
cumulative discharge
+26533% vs prior 12m
39.1 h
longest single event (all time)
2021-07-07
first event on record
Truth Engine flags· 5 open
- WarnDry-weather spillYorkshire Water · YWS00944 · River Don (Tidal)
- WarnMonitor offlineNorthumbrian Water · NWL00744 · River Don
- CautionDry-weather spillNorthumbrian Water · NWL01423 · Tributary of River Don
- WatchDry-weather spillYorkshire Water · YWS00860 · River Don
- WatchDry-weather spillYorkshire Water · YWS00864 · River Don
Recent spill events· last 7 days · 19
- 2026-09-18 20:19 UTCYorkshire Water · YWS02185 · River Don16 min
- 2026-09-18 20:03 UTCYorkshire Water · YWS01788 · River Don1.5 h
- 2026-09-18 19:51 UTCYorkshire Water · YWS02185 · River Don2 min
- 2026-09-17 16:03 UTCYorkshire Water · YWS00860 · River Don1 min
- 2026-09-17 15:48 UTCNorthumbrian Water · NWL01418 · River Don1 min
- 2026-09-17 06:27 UTCYorkshire Water · YWS01788 · River Don19 min
- 2026-09-17 06:12 UTCYorkshire Water · YWS02185 · River Don6 min
- 2026-09-17 03:56 UTCYorkshire Water · YWS00864 · River Don2 min
- 2026-09-17 03:23 UTCYorkshire Water · YWS00088 · River Don2 min
- 2026-09-17 02:00 UTCYorkshire Water · YWS00944 · River Don (Tidal)1 min
- 2026-09-16 14:24 UTCNorthumbrian Water · NWL01418 · River Don2 min
- 2026-09-16 10:30 UTCYorkshire Water · YWS00944 · River Don (Tidal)1 min
- 2026-09-16 10:17 UTCYorkshire Water · YWS00944 · River Don (Tidal)14 min
- 2026-09-15 10:49 UTCNorthumbrian Water · NWL01423 · Tributary of River Don2 min
- 2026-09-15 09:57 UTCNorthumbrian Water · NWL01294 · River Don0 min
- 2026-09-15 09:11 UTCNorthumbrian Water · NWL01294 · River Don1 min
- 2026-09-15 07:48 UTCNorthumbrian Water · NWL00169 · River Don1 min
- 2026-09-13 17:53 UTCNorthumbrian Water · NWL01418 · River Don1 min
- 2026-09-13 06:34 UTCYorkshire Water · YWS00088 · River Don2 min