Region · severn-and-wye
Severn and Wye
Two of Britain's great western rivers and the Lugg, the Wye's main tributary. The Severn runs 220 miles from Plynlimon to the Bristol Channel; the Wye flows 155 miles through the Welsh borders to join the Severn estuary at Chepstow, and the Lugg joins the Wye below Hereford. All three face sustained pressure from agricultural runoff and sewage discharge.
3
Rivers in region
1 of 3
Rivers affected now
195
Storm overflows
2
Active right now
0
Monitors offline
4
Open discrepancies
Member rivers
- 0 spilling→
River Severn
Britain's longest river — 220 miles from Plynlimon, mid-Wales, to the Bristol Channel. Salmon, paddleboarders, and Worcester's Diglis swimming spot.
- 2 spilling→
River Wye
155 miles through mid-Wales and the English border. SSSI river — agricultural runoff has driven WFD status to 'unfavourable-declining'.
- 0 spilling→
River Lugg
45 miles from Powys through Presteigne and Leominster to the Wye below Hereford. Named in the Wye catchment phosphate case; a Site of Special Scientific Interest for much of its length.
Spill record· since 6 May 2026 · across the region
1,978
spill events
6,069h
cumulative discharge
22 weeks
longest single event
2026-05-06
first event on record
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