River Derwent from Elvington Beck to River Ouse sewage map and spill data
4 storm overflows listed in the 2025 annual return name this water. All are operated by Yorkshire Water. Check the latest company report for each outlet below.
- 4
- Outlet records
- 78
- Spills in 2025
- 474
- Recorded hours
- 4
- Linked to a live feed
Annual figures describe the whole of 2025, not today.
Outlets on River Derwent from Elvington Beck to River Ouse
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 4 of 4 outlets
Open full map- Courtneys/CSOCurrent status unknown
Yorkshire Water · Ditch
2025 annual record:21spills114hours - Derwent/CSOCurrent status unknown
Yorkshire Water · Unnamed Tributary of Derwent
2025 annual record:1spill10.5hours - Ellerton/CSOCurrent status unknown
Yorkshire Water · Drain to River Derwent
2025 annual record:52spills330hours - The Weres/No 2 CSOCurrent status unknown
Yorkshire Water · The Weres Pond
2025 annual record:4spills19.5hours
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.
- 1Ellerton/CSO52spills
Yorkshire Water
- 2Courtneys/CSO21spills
Yorkshire Water
- 3The Weres/No 2 CSO4spills
Yorkshire Water
- 4Derwent/CSO1spills
Yorkshire Water
Spills over time
The median outlet on River Derwent from Elvington Beck to River Ouse recorded 12.5 spills in 2025, against 11 across England.
4 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 4 fewer and 0 the same. Together they went from 179 to 78 spills, a fall of 56%.
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 4 | 78 | 12.5 | 11 |
| 2024 | 4 | 179 | 45.5 | 19 |
| 2023 | 4 | 225 | 55 | 20 |
| 2022 | 4 | 156 | 31.5 | 13 |
| 2021 | 3 | 171 | 16 | 19 |
| 2020 | 3 | 71 | 24 | 18 |
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 River Derwent from Elvington Beck to River Ouse
4 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Courtneys/CSODitch · 21 spills in 2025
- Derwent/CSOUnnamed Tributary of Derwent · 1 spill in 2025
- Ellerton/CSODrain to River Derwent · 52 spills in 2025
- The Weres/No 2 CSOThe Weres Pond · 4 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: GB104027068311. The official waterbody record is a source lookup; its classification is not imported here.
Questions about River Derwent from Elvington Beck to River Ouse
- Which outlets are linked to River Derwent from Elvington Beck to River Ouse?
- The source links 4 outlet records to waterbody GB104027068311. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for River Derwent from Elvington Beck to River Ouse?
- 4 records report 78 spills in 2025 and 474 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 River Derwent from Elvington Beck to River Ouse?
- Yorkshire Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
- Which outlets on River Derwent from Elvington Beck to River Ouse are linked to a live feed?
- 4 of the 4 records are matched to a monitor in a company live feed. A link does not mean the monitor is working now. Use the status filters above to see the latest report for each outlet, with its date. The rest show annual figures only.
- How complete is the monitoring for River Derwent from Elvington Beck to River Ouse?
- Every record with a monitor operation figure shows 90% or more for 2025.
- Does this show if River Derwent from Elvington Beck to River Ouse is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.