Sewage Map

Wellow Bk - Snails Bk to Bristol Avon sewage map and spill data

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

16
Outlet records
226
Spills in 2025
990
Recorded hours
16
Linked to a live feed

1 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Wellow Bk - Snails Bk to Bristol Avon

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 10 of 16 outlets

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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. 1
    Monkton Combe Mill Lane

    Wessex Water

    49spills
  2. 1
    Radstock Mill Lane Storm Tank

    Wessex Water

    49spills
  3. 3
    Shoscombe Storm Tank

    Wessex Water

    41spills
  4. 4
    Monkton Combe Summer Lane

    Wessex Water

    27spills
  5. 5
    Midford Tucking Mill

    Wessex Water

    18spills

Spills over time

The median outlet on Wellow Bk - Snails Bk to Bristol Avon recorded 6 spills in 2025, against 11 across England.

15 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 2 recorded more spills, 11 fewer and 2 the same. Together they went from 416 to 216 spills, a fall of 48%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
202516226611
2024164398.519
202313355320
2022112311913
20211292919
202031926318

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 Wellow Bk - Snails Bk to Bristol Avon

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

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: GB109053022271. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Wellow Bk - Snails Bk to Bristol Avon

Which outlets are linked to Wellow Bk - Snails Bk to Bristol Avon?
The source links 16 outlet records to waterbody GB109053022271. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Wellow Bk - Snails Bk to Bristol Avon?
16 records report 226 spills in 2025 and 990 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 Wellow Bk - Snails Bk to Bristol Avon?
Wessex Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Wellow Bk - Snails Bk to Bristol Avon are linked to a live feed?
16 of the 16 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 Wellow Bk - Snails Bk to Bristol Avon?
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 Wellow Bk - Snails Bk to Bristol Avon is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.