Sewage Map

Derwent from Wye to Amber sewage map and spill data

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

34
Outlet records
1,038
Spills in 2025
6,580
Recorded hours
33
Linked to a live feed

1 records have no usable spill count. 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 Derwent from Wye to Amber

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 34 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
    Matlk Bth-Dale Rd (Coal Merchants) (CSO)

    Severn Trent Water

    118spills
  2. 2
    Matlock - Bakewell Rd (Hooley Town) (SSO)

    Severn Trent Water

    84spills
  3. 3
    Matlock Lea STW (SSTO)

    Severn Trent Water

    77spills
  4. 4
    Northwood - Dale Road North (CSO)

    Severn Trent Water

    71spills
  5. 5
    Darley Dale - Darley Bridge PS (CSO)

    Severn Trent Water

    63spills

Spills over time

The median outlet on Derwent from Wye to Amber recorded 22 spills in 2025, against 11 across England.

31 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 8 recorded more spills, 19 fewer and 4 the same. Together they went from 1,203 to 977 spills, a fall of 19%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
2025331,0382211
2024331,2552419
202341664920
202246211.513
2021418819.519
202027738.518

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 Derwent from Wye to Amber

34 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: GB104028052390. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Derwent from Wye to Amber

Which outlets are linked to Derwent from Wye to Amber?
The source links 34 outlet records to waterbody GB104028052390. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Derwent from Wye to Amber?
33 records report 1,038 spills in 2025 and 6,580 recorded hours. 1 records have no 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 Derwent from Wye to Amber?
Severn Trent Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Derwent from Wye to Amber are linked to a live feed?
33 of the 34 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 Derwent from Wye to Amber?
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 Derwent from Wye to Amber is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.