Sewage Map

Calder from Colden Water to Ryburn Confluence sewage map and spill data

17 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.

17
Outlet records
722
Spills in 2025
5,523
Recorded hours
17
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 Calder from Colden Water to Ryburn Confluence

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 17 outlets

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  • Brearley Main Sewer/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:79spills470.5hours
  • Crow Nest Bridge/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:91spills1,532.8hours
  • Ellen Holme Road/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:7spills72hours
  • Fielding Street/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:46spills342.3hours
  • Hangingroyd Road/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:3spills23.8hours
  • High Royd Towpath/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:36spills230.2hours
  • High Royd/No 2 STW/3Xdwf Overflow

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:57spills548.2hours
  • Longbottom Bridge/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:9spills71.8hours
  • Market Street/CSO

    Yorkshire Water · River Calder

    Current status unknown
    2025 annual record:10spills42.8hours
  • Midgeley Road/CSO

    Yorkshire Water · Culverted White Lee Clough

    Current status unknown
    2025 annual record:3spills0.8hours

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
    Princess Bridge/No 2 CSO

    Yorkshire Water

    128spills
  2. 2
    Rose Grove Lane/CSO

    Yorkshire Water

    113spills
  3. 3
    Crow Nest Bridge/CSO

    Yorkshire Water

    91spills
  4. 4
    Brearley Main Sewer/CSO

    Yorkshire Water

    79spills
  5. 5
    Pear Tree Hollins/CSO

    Yorkshire Water

    66spills

Spills over time

The median outlet on Calder from Colden Water to Ryburn Confluence recorded 36 spills in 2025, against 11 across England.

16 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 7 recorded more spills, 6 fewer and 3 the same. Together they went from 624 to 712 spills, a rise of 14%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
2025177223611
2024176352819
2023177491320
2022164688.513
2021156143919
2020155911118

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 Calder from Colden Water to Ryburn Confluence

17 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: GB104027062641. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Calder from Colden Water to Ryburn Confluence

Which outlets are linked to Calder from Colden Water to Ryburn Confluence?
The source links 17 outlet records to waterbody GB104027062641. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Calder from Colden Water to Ryburn Confluence?
17 records report 722 spills in 2025 and 5,523 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 Calder from Colden Water to Ryburn Confluence?
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 Calder from Colden Water to Ryburn Confluence are linked to a live feed?
17 of the 17 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 Calder from Colden Water to Ryburn Confluence?
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 Calder from Colden Water to Ryburn Confluence is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.