Sewage Map

West Scholes/CSO

Storm overflow operated by Yorkshire Water. The source names High Birks Beck as the receiving water.

4
Spills in 2025
1.5
Recorded hours
85.4%
Monitor operation
6
Years listed
Current status unknown

Checking the latest monitor report…

Open official annual data ↗

How it compares in 2025

West Scholes/CSO recorded 4 spills in 2025. That is more than 30% of the 14,239 overflows in England with a reported figure, and ranks 9,334th nationally. Among Yorkshire Water overflows it ranks 1,573rd of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Clayton Beck (Source to Bradford Bk) waterbody it ranks 9th of 17.

The monitor worked for 85.4% of 2025, so this count may be low and its rank may understate activity.

GroupRank by spillsMedian spillsMedian hours
This outlet–41.5
England9,334th of 14,2391122.3
Yorkshire Water1,573rd of 2,1761637.8
Clayton Beck (Source to Bradford Bk)9th of 1749.3

Rank 1 has the most spills. Equal counts share a rank. Only overflows with a reported count are ranked. Counts do not measure volume, so a higher rank does not mean more sewage.

Annual spill history

692020482021472022106202333202442025
From 2020 to 2025, the reported count went from 69 to 4 spills. The highest count was 106 in 2023 and the lowest was 4 in 2025. The monitor worked for less than 90% of 2020, 2021, 2022, 2024, 2025, so those counts may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
202541.5 hours85.4%Low coverageOfficial data
20243337.5 hours56.1%Low coverageOfficial data
2023106684.5 hours93.8%Official data
202247196.2 hours71.6%Low coverageOfficial data
202148137 hours88.1%Low coverageOfficial data
202069715.3 hours57%Low coverageOfficial data

A missing figure means the source did not provide a usable value. A zero is shown as zero. Monitor operation below 90% can make comparison less reliable.

Outlet details

Water company
Yorkshire Water
Outlet type
Storm overflow on the sewer network
Permit
WRA8334
Activity reference
A1
Grid reference
SE0979431675
Waterbody ID
GB104027062861Official waterbody record ↗
Location source
Official annual grid reference
Location precision
About 1 metres
Location note
Unknown

About the name and type

The annual return lists this asset as “SO on sewer network”: storm overflow on the sewer network. The return places this overflow on the sewer network.

The waterbody link opens the Environment Agency record for the exact ID in the return. It is a source lookup; we do not import its classification.

Where it is

The recorded position is about 1.2 km south-west of the Thornton (Bradford) reference point in the ONS built-up areas data.

Area and water pages

Check the official record

Public access to this outlet is unknown. Do not enter restricted land or use this page as a route guide.

Open official source ↗

Other outlet records nearby

Questions about West Scholes/CSO

Who operates West Scholes/CSO?
Yorkshire Water is the operator named in the annual record. The permit reference is WRA8334.
Where does West Scholes/CSO discharge?
The source names High Birks Beck as the receiving water. This does not show how far a discharge travelled.
How many times did West Scholes/CSO spill in 2025?
The 2025 return records 4 counted spill events and 1.5 hours of recorded discharge. Spills are counted with the 12/24-hour method, so this is not a count of every start signal.
Can I trust the 2025 figures for this outlet?
The monitor worked for 85.4% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
Is West Scholes/CSO discharging right now?
This record is linked to a company live feed. The panel above shows the latest report we hold, with its date. That report can be old, and the monitor can be offline, so check the date before relying on it. A report that no discharge is taking place is not a water-quality result.
How accurate is the map marker?
The marker comes from the grid reference in the official annual return, which is accurate to about 1 metres. It shows the recorded outlet position, not the extent of any discharge.
What kind of outlet is West Scholes/CSO?
The annual return lists the asset type as “SO on sewer network”, which means storm overflow on the sewer network. The return places this overflow on the sewer network.
How does West Scholes/CSO compare with other overflows?
West Scholes/CSO recorded 4 spills in 2025. That is more than 30% of the 14,239 overflows in England with a reported figure, and ranks 9,334th nationally. Among Yorkshire Water overflows it ranks 1,573rd of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Clayton Beck (Source to Bradford Bk) waterbody it ranks 9th of 17. Ranks compare counted spill events only. They do not compare volume or harm.
Does zero spills mean the water was safe?
No. A zero means the annual return recorded zero counted spill events for this outlet and year. It is not a water-quality test, and pollution can come from other sources.