Sewage Map

Hebble Brook/CSO

Storm overflow operated by Yorkshire Water. The source names Hebble Brook as the receiving water.

43
Spills in 2025
123.3
Recorded hours
100%
Monitor operation
4
Years listed

The reported spill count was 5 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

Checking the latest monitor report…

Open official annual data ↗

How it compares in 2025

Hebble Brook/CSO recorded 43 spills in 2025. That is more than 84% of the 14,239 overflows in England with a reported figure, and ranks 2,156th nationally. Among Yorkshire Water overflows it ranks 406th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Hebble Brook from Source to River Calder waterbody it ranks 6th of 18.

GroupRank by spillsMedian spillsMedian hours
This outlet–43123.3
England2,156th of 14,2391122.3
Yorkshire Water406th of 2,1761637.8
Hebble Brook from Source to River Calder6th of 1814.524

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

632022632023482024432025
From 2022 to 2025, the reported count went from 63 to 43 spills. The highest count was 63 in 2022 and the lowest was 43 in 2025.
YearSpillsDurationMonitor operationSource
202543123.3 hours100%Official data
202448131.2 hours98.3%Official data
202363199 hours99.8%Official data
202263161 hours95.5%Official 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
555
Activity reference
A1
Grid reference
SE0645029000
Waterbody ID
GB104027062780Official 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 3.5 km north of the Halifax 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.

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Other outlet records nearby

Questions about Hebble Brook/CSO

Who operates Hebble Brook/CSO?
Yorkshire Water is the operator named in the annual record. The permit reference is 555.
Where does Hebble Brook/CSO discharge?
The source names Hebble Brook as the receiving water. This does not show how far a discharge travelled.
How many times did Hebble Brook/CSO spill in 2025?
The 2025 return records 43 counted spill events and 123.3 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 100% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Hebble Brook/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 Hebble Brook/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 Hebble Brook/CSO compare with other overflows?
Hebble Brook/CSO recorded 43 spills in 2025. That is more than 84% of the 14,239 overflows in England with a reported figure, and ranks 2,156th nationally. Among Yorkshire Water overflows it ranks 406th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Hebble Brook from Source to River Calder waterbody it ranks 6th of 18. 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.