Ehen (upper including Liza) sewage map and spill data

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

7
Outlet records: 242
Spills in 2025: 666
Recorded hours: 7
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 counted Search the national map

Outlets on Ehen (upper including Liza)

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 7 of 7 outlets

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Arlecdon CSO
United Utilities · Winder Beck
Current status unknown
2025 annual record:33spills84.8hours

Arlecdon Parks Road CSO
United Utilities · Eller Gill
Current status unknown
2025 annual record:58spills88.1hours
Arlecdon Parks Road CSO to Winder Beck
United Utilities · Tributary of Winder Beck
Current status unknown
2025 annual record:1spill0.1hours
Brookside CSO
United Utilities · River Ehen
Current status unknown
2025 annual record:92spills419.8hours
Kiln Brow CSO
United Utilities · River Ehen
Current status unknown
2025 annual record:0spills0hours
Kiln Brow WwPS
United Utilities · River Ehen
Current status unknown
2025 annual record:7spills31.1hours
KIRKLAND WwTW
United Utilities · Hawes Gill
Current status unknown
2025 annual record:51spills42.5hours

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
Brookside CSO
United Utilities
92spills
2
Arlecdon Parks Road CSO
United Utilities
58spills
3
KIRKLAND WwTW
United Utilities
51spills
4
Arlecdon CSO
United Utilities
33spills
5
Kiln Brow WwPS
United Utilities
7spills

Spills over time

The median outlet on Ehen (upper including Liza) recorded 33 spills in 2025, against 11 across England.

6 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 4 recorded more spills, 1 fewer and 1 the same. Together they went from 179 to 242 spills, a rise of 35%.

Largest rises from 2024 to 2025

Year	Outlets with a count	Total spills	Median per outlet	England median
2025	7	242	33	11
2024	7	180	5	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 Ehen (upper including Liza)

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

Arlecdon CSOWinder Beck · 33 spills in 2025
Arlecdon Parks Road CSOEller Gill · 58 spills in 2025
Arlecdon Parks Road CSO to Winder BeckTributary of Winder Beck · 1 spill in 2025
Brookside CSORiver Ehen · 92 spills in 2025
Kiln Brow CSORiver Ehen · 0 spills in 2025
Kiln Brow WwPSRiver Ehen · 7 spills in 2025
KIRKLAND WwTWHawes Gill · 51 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: GB112074070010. The official waterbody record is a source lookup; its classification is not imported here.

All sources How the data works Report pollution

Questions about Ehen (upper including Liza)

Which outlets are linked to Ehen (upper including Liza)?: The source links 7 outlet records to waterbody GB112074070010. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Ehen (upper including Liza)?: 7 records report 242 spills in 2025 and 666 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 Ehen (upper including Liza)?: United Utilities operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Ehen (upper including Liza) are linked to a live feed?: 7 of the 7 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 Ehen (upper including Liza)?: 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 Ehen (upper including Liza) is safe?: No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.