Sewage Map

York Landing Lane/CSO

Storm overflow operated by Yorkshire Water. The source names River Ouse as the receiving water.

13
Spills in 2025
108.4
Recorded hours
94.9%
Monitor operation
6
Years listed

The reported spill count was 20 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

York Landing Lane/CSO recorded 13 spills in 2025. That is more than 53% of the 14,239 overflows in England with a reported figure, and ranks 6,413th nationally. Among Yorkshire Water overflows it ranks 1,170th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Ouse from River Nidd to Stillingfleet Beck waterbody it ranks 25th of 41.

GroupRank by spillsMedian spillsMedian hours
This outlet–13108.4
England6,413th of 14,2391122.3
Yorkshire Water1,170th of 2,1761637.8
Ouse from River Nidd to Stillingfleet Beck25th of 412266.6

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

17202019202192022232023332024132025
From 2020 to 2025, the reported count went from 17 to 13 spills. The highest count was 33 in 2024 and the lowest was 9 in 2022. The monitor worked for less than 90% of 2022, so that count may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
202513108.4 hours94.9%Official data
202433106 hours99.5%Official data
20232341 hours99.7%Official data
2022917.1 hours25%Low coverageOfficial data
20211970.5 hours97.3%Official data
202017138.1 hours92.5%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
27/24/0458
Activity reference
A1
Grid reference
SE5834752566
Waterbody ID
GB104027069593Official 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 1.8 km north-west of the York 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 York Landing Lane/CSO

Who operates York Landing Lane/CSO?
Yorkshire Water is the operator named in the annual record. The permit reference is 27/24/0458.
Where does York Landing Lane/CSO discharge?
The source names River Ouse as the receiving water. This does not show how far a discharge travelled.
How many times did York Landing Lane/CSO spill in 2025?
The 2025 return records 13 counted spill events and 108.4 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 94.9% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is York Landing Lane/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 York Landing Lane/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 York Landing Lane/CSO compare with other overflows?
York Landing Lane/CSO recorded 13 spills in 2025. That is more than 53% of the 14,239 overflows in England with a reported figure, and ranks 6,413th nationally. Among Yorkshire Water overflows it ranks 1,170th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Ouse from River Nidd to Stillingfleet Beck waterbody it ranks 25th of 41. 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.