Holmes Dike catchment (trib of Ouse) sewage map and spill data

3 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.

3
Outlet records: 73
Spills in 2025: 447
Recorded hours: 3
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 Holmes Dike catchment (trib of Ouse)

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 3 of 3 outlets

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Selby Road Wistow/CSO
Yorkshire Water · Permit applied for
Current status unknown
2025 annual record:43spills320hours

Station Road Wistow/CSO
Yorkshire Water · Tributary of River Ouse
Current status unknown
2025 annual record:5spills39.8hours
Wistow Garman Carr/CSO
Yorkshire Water · Garmancarr Dike
Current status unknown
2025 annual record:25spills87.5hours

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
Selby Road Wistow/CSO
Yorkshire Water
43spills
2
Wistow Garman Carr/CSO
Yorkshire Water
25spills
3
Station Road Wistow/CSO
Yorkshire Water · monitor coverage 36.6%, below 90%
5spills

Spills over time

The median outlet on Holmes Dike catchment (trib of Ouse) recorded 25 spills in 2025, against 11 across England.

2 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 2 fewer and 0 the same. Together they went from 127 to 68 spills, a fall of 46%.

Year	Outlets with a count	Total spills	Median per outlet	England median
2025	3	73	25	11
2024	3	143	30	19
2023	3	116	34	20
2022	2	40	20	13
2021	2	46	23	19
2020	2	29	14.5	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 Holmes Dike catchment (trib of Ouse)

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

Selby Road Wistow/CSOPermit applied for · 43 spills in 2025
Station Road Wistow/CSOTributary of River Ouse · 5 spills in 2025
Wistow Garman Carr/CSOGarmancarr Dike · 25 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: GB104027063650. The official waterbody record is a source lookup; its classification is not imported here.

All sources How the data works Report pollution

Questions about Holmes Dike catchment (trib of Ouse)

Which outlets are linked to Holmes Dike catchment (trib of Ouse)?: The source links 3 outlet records to waterbody GB104027063650. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Holmes Dike catchment (trib of Ouse)?: 3 records report 73 spills in 2025 and 447 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 Holmes Dike catchment (trib of Ouse)?: 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 Holmes Dike catchment (trib of Ouse) are linked to a live feed?: 3 of the 3 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 Holmes Dike catchment (trib of Ouse)?: 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 Holmes Dike catchment (trib of Ouse) is safe?: No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.