Wye sewage map and spill data
3 storm overflows listed in the 2025 annual return name this water. All are operated by Dŵr Cymru Welsh Water. Check the latest company report for each outlet below.
- 3
- Outlet records
- 223
- Spills in 2025
- 1,560
- Recorded hours
- 0
- Linked to a live feed
1 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.
Outlets on Wye
Filter by the latest company report. The map follows the filters.
Filters apply to the map and list. Recent stops need a current report and a recorded stop time. They do not show whether water is safe.
Showing 3 of 3 outlets
Open full map- SedburyCurrent status unknown
Dŵr Cymru Welsh Water · River Wye
2025 annual record:59spills332.3hours - St Briavels WwTWCurrent status unknown
Dŵr Cymru Welsh Water · Wye Estuary
2025 annual record:136spills1,198.5hours - Wyebank Road CSO, ChepstowCurrent status unknown
Dŵr Cymru Welsh Water · River Wye
2025 annual record:28spills29.5hours
No outlets match these filters.
Most recorded spills in 2025
The highest 2025 counts among these outlets. A count is events, not volume or harm. Equal counts share a rank.
- 1St Briavels WwTW136spills
Dŵr Cymru Welsh Water
- 2Sedbury59spills
Dŵr Cymru Welsh Water
- 3Wyebank Road CSO, Chepstow28spills
Dŵr Cymru Welsh Water · monitor coverage 78.9%, below 90%
Spills over time
The median outlet on Wye recorded 59 spills in 2025, against 11 across England.
2 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 2 fewer and 0 the same. Together they went from 273 to 195 spills, a fall of 29%.
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 3 | 223 | 59 | 11 |
| 2024 | 3 | 305 | 78 | 19 |
| 2023 | 2 | 244 | 122 | 20 |
| 2022 | 2 | 146 | 73 | 13 |
| 2021 | 2 | 111 | 55.5 | 19 |
Earlier returns list fewer of these outlets, so totals are not comparable between years. The median per outlet and the like-for-like change are fairer comparisons. Counts are events, not volume.
All outlet records on Wye
3 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- SedburyRiver Wye · 59 spills in 2025
- St Briavels WwTWWye Estuary · 136 spills in 2025
- Wyebank Road CSO, ChepstowRiver Wye · 28 spills in 2025
Sources and dates
Outlet locations, waterbody links and spill figures come from the Environment Agency 2025 event duration monitoring annual return. The latest company reports come from each operator’s live feed and carry their own dates. Waterbody ID: GB530905415406. The official waterbody record is a source lookup; its classification is not imported here.
Questions about Wye
- Which outlets are linked to Wye?
- The source links 3 outlet records to waterbody GB530905415406. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for Wye?
- 3 records report 223 spills in 2025 and 1,560 recorded hours. All listed records have a usable count. Outlets can discharge at the same time, so the hours are not the time the whole water was affected.
- Who is responsible for the outlets on Wye?
- Dŵr Cymru Welsh Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
- Which outlets on Wye are linked to a live feed?
- None of these records is matched to a company live feed, so only annual figures are available for this water.
- How complete is the monitoring for Wye?
- 1 of the listed records have monitor operation below 90% for 2025. Events can be missed when a monitor is not working, so low counts from those outlets may understate activity.
- Does this show if Wye is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.