Sewage Map

Gaunless from Source to Hummer Beck sewage map and spill data

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

24
Outlet records
381
Spills in 2025
2,083
Recorded hours
24
Linked to a live feed

2 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 Gaunless from Source to Hummer Beck

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 24 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
    Butterknowle Sewage Treatment Works

    Northumbrian Water

    82spills
  2. 2
    Butterknowle CSO 2

    Northumbrian Water

    60spills
  3. 3
    Ramshaw Sewage Treatment Works

    Northumbrian Water

    43spills
  4. 4
    Ramshaw Sewage Treatment Works

    Northumbrian Water

    34spills
  5. 5
    Toft Hill Ejector

    Northumbrian Water

    27spills

Spills over time

The median outlet on Gaunless from Source to Hummer Beck recorded 7.5 spills in 2025, against 11 across England.

19 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 4 recorded more spills, 11 fewer and 4 the same. Together they went from 387 to 273 spills, a fall of 29%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
2025243817.511
2024244858.519
2023424050.520
202227738.513
20212703519
2020426454.518

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 Gaunless from Source to Hummer Beck

24 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: GB103024072690. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Gaunless from Source to Hummer Beck

Which outlets are linked to Gaunless from Source to Hummer Beck?
The source links 24 outlet records to waterbody GB103024072690. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Gaunless from Source to Hummer Beck?
24 records report 381 spills in 2025 and 2,083 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 Gaunless from Source to Hummer Beck?
Northumbrian Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Gaunless from Source to Hummer Beck are linked to a live feed?
24 of the 24 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 Gaunless from Source to Hummer Beck?
2 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 Gaunless from Source to Hummer Beck is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.