Black Brook from Source to River Calder sewage map and spill data
16 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.
- 16
- Outlet records
- 275
- Spills in 2025
- 1,655
- Recorded hours
- 15
- Linked to a live feed
3 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.
Outlets on Black Brook from Source to River Calder
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 16 outlets
Open full map- Barsey Green/STWCurrent status unknown
Yorkshire Water · Barsey Clough
2025 annual record:44spills475.3hours - Brow Bridge/CSOCurrent status unknown
Yorkshire Water · Black Brook
2025 annual record:8spills7hours - Carr Hall Lane/CSOCurrent status unknown
Yorkshire Water · Calder and Tribs
2025 annual record:4spills1hours - Forest Hill Road/CSOCurrent status unknown
Yorkshire Water · Tributary of Holywell Brook
2025 annual record:8spills12hours - Hey Clough/CSOCurrent status unknown
Yorkshire Water · Hey Clough
2025 annual record:34spills180.5hours - Holywell Brook/CSOCurrent status unknown
Yorkshire Water · Culverted Holywell Brook
2025 annual record:1spill1.3hours - Holywell Green/CSOCurrent status unknown
Yorkshire Water · Holywell Brook
2025 annual record:5spills11.5hours - Hoults Lane/CSOCurrent status unknown
Yorkshire Water · Black Brook
2025 annual record:5spills1.8hours - Hoyles Memorial Gdns/CSOCurrent status unknown
Yorkshire Water · Black Brook
2025 annual record:27spills41.5hours - New Hey Road/CSOCurrent status unknown
Yorkshire Water · Culverted Tributary Longwood Brook
2025 annual record:11spills19hours
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.
- 1West Vale/CSO78spills
Yorkshire Water · monitor coverage 67.5%, below 90%
- 2Barsey Green/STW44spills
Yorkshire Water
- 3Pole Moor/CSO36spills
Yorkshire Water
- 4Hey Clough/CSO34spills
Yorkshire Water
- 5Hoyles Memorial Gdns/CSO27spills
Yorkshire Water · monitor coverage 76.4%, below 90%
Spills over time
The median outlet on Black Brook from Source to River Calder recorded 7 spills in 2025, against 11 across England.
12 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 3 recorded more spills, 8 fewer and 1 the same. Together they went from 222 to 164 spills, a fall of 26%.
Largest rises from 2024 to 2025
- Barsey Green/STW31 → 44
- Hey Clough/CSO22 → 34
- Carr Hall Lane/CSO1 → 4
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 16 | 275 | 7 | 11 |
| 2024 | 16 | 436 | 13.5 | 19 |
| 2023 | 16 | 567 | 26.5 | 20 |
| 2022 | 14 | 252 | 16 | 13 |
| 2021 | 14 | 313 | 13.5 | 19 |
| 2020 | 14 | 313 | 18 | 18 |
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 Black Brook from Source to River Calder
16 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Barsey Green/STWBarsey Clough · 44 spills in 2025
- Brow Bridge/CSOBlack Brook · 8 spills in 2025
- Carr Hall Lane/CSOCalder and Tribs · 4 spills in 2025
- Forest Hill Road/CSOTributary of Holywell Brook · 8 spills in 2025
- Hey Clough/CSOHey Clough · 34 spills in 2025
- Holywell Brook/CSOCulverted Holywell Brook · 1 spill in 2025
- Holywell Green/CSOHolywell Brook · 5 spills in 2025
- Hoults Lane/CSOBlack Brook · 5 spills in 2025
- Hoyles Memorial Gdns/CSOBlack Brook · 27 spills in 2025
- New Hey Road/CSOCulverted Tributary Longwood Brook · 11 spills in 2025
- Pole Moor/CSORed Lane Dike · 36 spills in 2025
- Rochdale Road/CSOBlack Brook · 1 spill in 2025
- Saddleworth Road/CSOBlack Brook · 1 spill in 2025
- Stainland Road/CSOHolywell Brook · 6 spills in 2025
- Sunnybank/CSOBlack Brook · 6 spills in 2025
- West Vale/CSOBlack Brook · 78 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: GB104027062570. The official waterbody record is a source lookup; its classification is not imported here.
Questions about Black Brook from Source to River Calder
- Which outlets are linked to Black Brook from Source to River Calder?
- The source links 16 outlet records to waterbody GB104027062570. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for Black Brook from Source to River Calder?
- 16 records report 275 spills in 2025 and 1,655 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 Black Brook from Source to River Calder?
- 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 Black Brook from Source to River Calder are linked to a live feed?
- 15 of the 16 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 Black Brook from Source to River Calder?
- 3 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 Black Brook from Source to River Calder is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.