Cherwell (Nell Bridge to Bletchingdon) sewage map and spill data

3 storm overflows listed in the 2025 annual return name this water. All are operated by Thames Water. Check the latest company report for each outlet below.

3
Outlet records: 49
Spills in 2025: 439
Recorded hours: 3
Linked to a live feed

Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are counted Search the national map

Outlets on Cherwell (Nell Bridge to Bletchingdon)

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

Clifton STW
Thames Water · Clifton Brook
Current status unknown
2025 annual record:12spills89hours

Tackley SPS & Storm SPS
Thames Water · Tributary of the Rver Cherwell
Current status unknown
2025 annual record:4spills47.3hours
Upper Heyford STW
Thames Water · Cherwell
Current status unknown
2025 annual record:33spills302.5hours

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.

1
Upper Heyford STW
Thames Water
33spills
2
Clifton STW
Thames Water
12spills
3
Tackley SPS & Storm SPS
Thames Water
4spills

Spills over time

The median outlet on Cherwell (Nell Bridge to Bletchingdon) recorded 12 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. 0 recorded more spills, 3 fewer and 0 the same. Together they went from 174 to 49 spills, a fall of 72%.

Year	Outlets with a count	Total spills	Median per outlet	England median
2025	3	49	12	11
2024	3	174	36	19
2023	3	58	13	20

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 Cherwell (Nell Bridge to Bletchingdon)

3 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.

Clifton STWClifton Brook · 12 spills in 2025
Tackley SPS & Storm SPSTributary of the Rver Cherwell · 4 spills in 2025
Upper Heyford STWCherwell · 33 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: GB106039037431. The official waterbody record is a source lookup; its classification is not imported here.

All sources How the data works Report pollution

Questions about Cherwell (Nell Bridge to Bletchingdon)

Which outlets are linked to Cherwell (Nell Bridge to Bletchingdon)?: The source links 3 outlet records to waterbody GB106039037431. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Cherwell (Nell Bridge to Bletchingdon)?: 3 records report 49 spills in 2025 and 439 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 Cherwell (Nell Bridge to Bletchingdon)?: Thames Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Cherwell (Nell Bridge to Bletchingdon) are linked to a live feed?: 3 of the 3 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 Cherwell (Nell Bridge to Bletchingdon)?: Every record with a monitor operation figure shows 90% or more for 2025.
Does this show if Cherwell (Nell Bridge to Bletchingdon) is safe?: No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.