Sewage Map

Dee - Chester Weir to Ceiriog sewage map and spill data

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

5
Outlet records
58
Spills in 2025
109
Recorded hours
0
Linked to a live feed

Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Dee - Chester Weir to Ceiriog

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 5 of 5 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
    Chester The Groves

    Dŵr Cymru Welsh Water

    34spills
  2. 2
    The Boat House CSO, The Groves, Chester

    Dŵr Cymru Welsh Water

    23spills
  3. 3
    Chester Boughton Sandy Lane Car Park

    Dŵr Cymru Welsh Water

    1spills
  4. 4
    Chester Belgrave Park

    Dŵr Cymru Welsh Water

    0spills
  5. 4
    Chester Greenbank

    Dŵr Cymru Welsh Water

    0spills

Spills over time

The median outlet on Dee - Chester Weir to Ceiriog recorded 1 spill in 2025, against 11 across England.

5 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 2 the same. Together they went from 94 to 58 spills, a fall of 38%.

YearOutlets with a countTotal spillsMedian per outletEngland median
2025558111
20245941219
202310020
202210013
202110019

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 Dee - Chester Weir to Ceiriog

5 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: GB111067057080. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Dee - Chester Weir to Ceiriog

Which outlets are linked to Dee - Chester Weir to Ceiriog?
The source links 5 outlet records to waterbody GB111067057080. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Dee - Chester Weir to Ceiriog?
5 records report 58 spills in 2025 and 109 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 Dee - Chester Weir to Ceiriog?
Dŵr Cymru Welsh Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Dee - Chester Weir to Ceiriog are linked to a live feed?
None of these records is matched to a company live feed, so only annual figures are available for this water.
How complete is the monitoring for Dee - Chester Weir to Ceiriog?
Every record with a monitor operation figure shows 90% or more for 2025.
Does this show if Dee - Chester Weir to Ceiriog is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.