Ouse from River Ure to River Nidd 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
- 98
- Spills in 2025
- 197
- Recorded hours
- 4
- Linked to a live feed
1 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.
Outlets on Ouse from River Ure to River Nidd
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- Aldwark Bay Horse/2 STWCurrent status unknown
Yorkshire Water · Unnamed Tributary of River Ure
2025 annual record:44spills104.5hours - Fisher End/CSOCurrent status unknown
Yorkshire Water · River Ouse
2025 annual record:46spills84.8hours - Nun Monkton Common/CSOCurrent status unknown
Yorkshire Water · Mill Sike
2025 annual record:4spills2.4hours - Upper Dunsforth/CSOCurrent status unknown
Yorkshire Water · Caulkhill Beck
2025 annual record:4spills5.8hours
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.
- 1Fisher End/CSO46spills
Yorkshire Water
- 2Aldwark Bay Horse/2 STW44spills
Yorkshire Water
- 3Nun Monkton Common/CSO4spills
Yorkshire Water
- 3Upper Dunsforth/CSO4spills
Yorkshire Water · monitor coverage 74.5%, below 90%
Spills over time
The median outlet on Ouse from River Ure to River Nidd recorded 24 spills in 2025, against 11 across England.
3 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 1 recorded more spills, 2 fewer and 0 the same. Together they went from 171 to 94 spills, a fall of 45%.
Largest rises from 2024 to 2025
- Fisher End/CSO32 → 46
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 4 | 98 | 24 | 11 |
| 2024 | 4 | 172 | 20 | 19 |
| 2023 | 4 | 197 | 4.5 | 20 |
| 2022 | 3 | 5 | 2 | 13 |
| 2021 | 3 | 20 | 3 | 19 |
| 2020 | 3 | 71 | 6 | 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 Ouse from River Ure to River Nidd
4 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Aldwark Bay Horse/2 STWUnnamed Tributary of River Ure · 44 spills in 2025
- Fisher End/CSORiver Ouse · 46 spills in 2025
- Nun Monkton Common/CSOMill Sike · 4 spills in 2025
- Upper Dunsforth/CSOCaulkhill Beck · 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: GB104027069592. The official waterbody record is a source lookup; its classification is not imported here.
Questions about Ouse from River Ure to River Nidd
- Which outlets are linked to Ouse from River Ure to River Nidd?
- The source links 4 outlet records to waterbody GB104027069592. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for Ouse from River Ure to River Nidd?
- 4 records report 98 spills in 2025 and 197 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 Ouse from River Ure to River Nidd?
- 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 Ouse from River Ure to River Nidd 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 Ouse from River Ure to River Nidd?
- 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 Ouse from River Ure to River Nidd is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.