Sewage Map

Knoll Beck from Source to River Dearne sewage map and spill data

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

15
Outlet records
437
Spills in 2025
2,693
Recorded hours
15
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 countedSearch the national map

Outlets on Knoll Beck from Source to River Dearne

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 15 outlets

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  • Barrowfield Road/CSO

    Yorkshire Water · Tributary of Harley Dike

    Current status unknown
    2025 annual record:13spills38hours
  • Church Street Jump/2 CSO

    Yorkshire Water · Jump Valley Stream

    Current status unknown
    2025 annual record:45spills156.5hours
  • Cloughfields/No 2 CSO

    Yorkshire Water · Tributary of Harley Dike

    Current status unknown
    2025 annual record:42spills104.5hours
  • Cobcar Lane/CSO

    Yorkshire Water · Jump Valley Stream

    Current status unknown
    2025 annual record:34spills101.5hours
  • Elsecar/CSO

    Yorkshire Water · Knoll Beck

    Current status unknown
    2025 annual record:47spills194.8hours
  • Harley/STW

    Yorkshire Water · Harley Dike

    Current status unknown
    2025 annual record:29spills137hours
  • Hoyland King Street/CSO

    Yorkshire Water · Tributary of Dearne and Dove Canal

    Current status unknown
    2025 annual record:17spills26hours
  • Lundhill/CSO

    Yorkshire Water · Knoll Beck

    Current status unknown
    2025 annual record:34spills121.5hours
  • Millhouses Street/CSO

    Yorkshire Water · Tributary of Knoll Beck

    Current status unknown
    2025 annual record:15spills18hours
  • Moorbridge Road/CSO

    Yorkshire Water · Knoll Beck

    Current status unknown
    2025 annual record:8spills4.5hours

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. 1
    Wentworth/STW

    Yorkshire Water

    99spills
  2. 2
    Elsecar/CSO

    Yorkshire Water

    47spills
  3. 3
    Church Street Jump/2 CSO

    Yorkshire Water

    45spills
  4. 4
    Cloughfields/No 2 CSO

    Yorkshire Water

    42spills
  5. 5
    Welland Crescent/CSO

    Yorkshire Water

    35spills

Spills over time

The median outlet on Knoll Beck from Source to River Dearne recorded 29 spills in 2025, against 11 across England.

14 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 2 recorded more spills, 12 fewer and 0 the same. Together they went from 600 to 420 spills, a fall of 30%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
2025154372911
2024156184219
2023156663520
2022144453113
2021123533419
2020124054018

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 Knoll Beck from Source to River Dearne

15 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: GB104027057470. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Knoll Beck from Source to River Dearne

Which outlets are linked to Knoll Beck from Source to River Dearne?
The source links 15 outlet records to waterbody GB104027057470. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Knoll Beck from Source to River Dearne?
15 records report 437 spills in 2025 and 2,693 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 Knoll Beck from Source to River Dearne?
Yorkshire Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Knoll Beck from Source to River Dearne are linked to a live feed?
15 of the 15 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 Knoll Beck from Source to River Dearne?
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 Knoll Beck from Source to River Dearne is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.