Sewage Map

Springwell Lane North/CSO

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

57
Spills in 2025
139
Recorded hours
98.5%
Monitor operation
6
Years listed

The reported spill count was 13 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

Springwell Lane North/CSO recorded 57 spills in 2025. That is more than 90% of the 14,239 overflows in England with a reported figure, and ranks 1,252nd nationally. Among Yorkshire Water overflows it ranks 226th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Willow Beck Catchment (trib of Wiske) waterbody it ranks 1st of 8.

GroupRank by spillsMedian spillsMedian hours
This outlet–57139
England1,252nd of 14,2391122.3
Yorkshire Water226th of 2,1761637.8
Willow Beck Catchment (trib of Wiske)1st of 82665.8

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

872020762021762022982023702024572025
From 2020 to 2025, the reported count went from 87 to 57 spills. The highest count was 98 in 2023 and the lowest was 57 in 2025.
YearSpillsDurationMonitor operationSource
202557139 hours98.5%Official data
202470203.3 hours99.1%Official data
202398220.3 hours99.7%Official data
202276173.5 hours99.7%Official data
202176208 hours91.3%Official data
202087208 hours100%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
2300
Activity reference
A1
Grid reference
SE3637993805
Waterbody ID
GB104027069540Official 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 0.8 km south-west of the Northallerton 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 Springwell Lane North/CSO

Who operates Springwell Lane North/CSO?
Yorkshire Water is the operator named in the annual record. The permit reference is 2300.
Where does Springwell Lane North/CSO discharge?
The source names Willow Beck as the receiving water. This does not show how far a discharge travelled.
How many times did Springwell Lane North/CSO spill in 2025?
The 2025 return records 57 counted spill events and 139 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 98.5% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Springwell Lane North/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 Springwell Lane North/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 Springwell Lane North/CSO compare with other overflows?
Springwell Lane North/CSO recorded 57 spills in 2025. That is more than 90% of the 14,239 overflows in England with a reported figure, and ranks 1,252nd nationally. Among Yorkshire Water overflows it ranks 226th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Willow Beck Catchment (trib of Wiske) waterbody it ranks 1st of 8. 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.