Featured river · wye

River Wye

155 miles through mid-Wales and the English border. SSSI river — agricultural runoff has driven WFD status to 'unfavourable-declining'.

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Storm overflows

Active right now

Spill events · 24 h

Open discrepancies

Monitors offline

107

WIMS sampling points

Hydrology stations

Spill record· last 12 months · across the river

715

spill events

+17775% vs prior 12m

1,055h

cumulative discharge

+20950% vs prior 12m

10 days

longest single event (all time)

2025-06-05

first event on record

Currently spilling· 1

01
River Wye Estuary
Dwr Cymru Welsh Water · Hunger Pill Overflow · spilling for 34.7 h
→

Truth Engine flags· 2 open

Recent spill events· last 7 days · 20

2026-09-18 10:07 UTCDwr Cymru Welsh Water · Tintern WwTW Overflow · River Wye
27 min
2026-09-17 17:30 UTCDwr Cymru Welsh Water · Hunger Pill Overflow · River Wye Estuary
ongoing
2026-09-17 06:15 UTCDwr Cymru Welsh Water · Thornwell Road Storm Overflow · River Wye
15 min
2026-09-17 06:15 UTCDwr Cymru Welsh Water · Hunger Pill Overflow · River Wye Estuary
15 min
2026-09-17 06:00 UTCDwr Cymru Welsh Water · Chepstow Fairfield Storm Overflow · River Wye Estuary
1.8 h
2026-09-17 05:45 UTCDwr Cymru Welsh Water · Welsh Street Storm Overflow · River Wye
45 min
2026-09-15 03:22 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
8 min
2026-09-15 03:10 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
4 min
2026-09-13 11:45 UTCDwr Cymru Welsh Water · Plough Lane Storm Overflow · River Wye
1.3 h
2026-09-13 04:18 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
1.3 h
2026-09-13 03:02 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
19 min
2026-09-13 02:30 UTCDwr Cymru Welsh Water · The Strand Storm Overflow · River Wye
3 min
2026-09-13 01:45 UTCDwr Cymru Welsh Water · Rhayader WwTW Inlet Storm Overflow · River Wye
30 min
2026-09-13 01:30 UTCDwr Cymru Welsh Water · Builth Wells WwTW Storm Overflow · River Wye
2 h
2026-09-13 01:30 UTCDwr Cymru Welsh Water · Broad Street Storm Overflow · River Wye
30 min
2026-09-12 23:25 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
2 min
2026-09-12 23:13 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
0 min
2026-09-12 22:34 UTCDwr Cymru Welsh Water · Newbridge -on-Wye WwTW Storm Overflow · River Wye
1 min
2026-09-12 22:30 UTCDwr Cymru Welsh Water · Welsh Street Storm Overflow · River Wye
15 min
2026-09-12 16:00 UTCDwr Cymru Welsh Water · Rhayader WwTW Inlet Storm Overflow · River Wye
30 min

Spill record· last 12 months · across the river

Currently spilling· 1

River Wye Estuary

Truth Engine flags· 2 open

Recent spill events· last 7 days · 20