Receiving watercourse
Groundwater
21 monitored storm overflows on the Groundwater are listed in the National Storm Overflow Hub. Operated by Severn Trent Water, South West Water, Thames Water, Wessex Water and Yorkshire Water.
21
Storm overflows
0
Active right now
0
Monitors offline
152
Spill events · 12 months
97h
Recorded discharge · 12 months
2
Open discrepancies
Every monitored overflow· 21
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- WXW00977Wessex Waterinactive
- WXW00669Wessex Waterinactive
- TWL00149Thames Waterinactive
- WXW00673Wessex Waterinactive
- WXW00545Wessex Waterinactive
- TWL00226Thames Waterinactive
- YWS00506Yorkshire Waterinactive
- TWL00000Thames Waterinactive
- TWL00108Thames Waterinactive
- WXW01241Wessex Waterinactive
- TWL00050Thames Waterinactive
- SBB00195South West Waterinactive
- SVT02468Severn Trent Waterinactive
- TWL00006Thames Waterinactive
- TWL00049Thames Waterinactive
- TWL00068Thames Waterinactive
- TWL00723Thames Waterinactive
- SVT00295Severn Trent Waterinactive
- SVT00294Severn Trent Waterinactive
- SVT00292Severn Trent Waterinactive
- TWL00374Thames Waterinactive
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.