Balderton drain sewage map and spill data
2 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.
- 2
- Outlet records
- 1
- Spills in 2025
- 0
- Recorded hours
- 0
- Linked to a live feed
1 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.
Outlets on Balderton drain
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 2 of 2 outlets
Open full map- Chester BaldertonCurrent status unknown
Dŵr Cymru Welsh Water · Tributary of Balderton Brook
2025 annual record:1spill0.3hours - Chester Marlston-Cum-LacheCurrent status unknown
Dŵr Cymru Welsh Water · Balderton Brook
2025 annual record:0spills0hours
No outlets match these filters.
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.
- 1Chester Balderton1spills
Dŵr Cymru Welsh Water · monitor coverage 89.7%, below 90%
- 2Chester Marlston-Cum-Lache0spills
Dŵr Cymru Welsh Water
Spills over time
The median outlet on Balderton drain recorded 0.5 spills in 2025, against 11 across England.
1 outlet has a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 1 fewer and 0 the same. Together it went from 1 to 0 spills, a fall of 100%.
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 2 | 1 | 0.5 | 11 |
| 2024 | 2 | 46 | 23 | 19 |
| 2023 | 1 | 2 | 2 | 20 |
| 2022 | 1 | 0 | 0 | 13 |
| 2021 | 1 | 12 | 12 | 19 |
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 Balderton drain
2 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Chester BaldertonTributary of Balderton Brook · 1 spill in 2025
- Chester Marlston-Cum-LacheBalderton Brook · 0 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: GB111067052150. The official waterbody record is a source lookup; its classification is not imported here.
Questions about Balderton drain
- Which outlets are linked to Balderton drain?
- The source links 2 outlet records to waterbody GB111067052150. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for Balderton drain?
- 2 records report 1 spills in 2025 and 0 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 Balderton drain?
- 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 Balderton drain 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 Balderton drain?
- 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 Balderton drain is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.