Sewage Map

Snape/STW/3Xdwf Overflow

Storm overflow operated by Yorkshire Water. The source names Tributary of Main Cut as the receiving water.

36
Spills in 2025
184
Recorded hours
100%
Monitor operation
6
Years listed

The reported spill count was 41 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

Checking the latest monitor report…

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How it compares in 2025

Snape/STW/3Xdwf Overflow recorded 36 spills in 2025. That is more than 79% of the 14,239 overflows in England with a reported figure, and ranks 2,801st nationally. Among Yorkshire Water overflows it ranks 543rd of 2,176; the median Yorkshire Water overflow recorded 16 spills.

GroupRank by spillsMedian spillsMedian hours
This outlet–36184
England2,801st of 14,2391122.3
Yorkshire Water543rd of 2,1761637.8

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

532020772021552022862023772024362025
From 2020 to 2025, the reported count went from 53 to 36 spills. The highest count was 86 in 2023 and the lowest was 36 in 2025.
YearSpillsDurationMonitor operationSource
202536184 hours100%Official data
202477965.2 hours100%Official data
2023861,020.5 hours100%Official data
202255313.8 hours99%Official data
202177784.5 hours100%Official data
202053548.1 hours99.7%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 tank at a wastewater treatment works
Permit
27/23/0201
Activity reference
A2
Grid reference
SE2734184271
Waterbody ID
GB104027068841Official 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 “Storm tank at WwTW”: storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.

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 east of the Snape (Hambleton) 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 Snape/STW/3Xdwf Overflow

Who operates Snape/STW/3Xdwf Overflow?
Yorkshire Water is the operator named in the annual record. The permit reference is 27/23/0201.
Where does Snape/STW/3Xdwf Overflow discharge?
The source names Tributary of Main Cut as the receiving water. This does not show how far a discharge travelled.
How many times did Snape/STW/3Xdwf Overflow spill in 2025?
The 2025 return records 36 counted spill events and 184 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 Snape/STW/3Xdwf Overflow 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 Snape/STW/3Xdwf Overflow?
The annual return lists the asset type as “Storm tank at WwTW”, which means storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.
How does Snape/STW/3Xdwf Overflow compare with other overflows?
Snape/STW/3Xdwf Overflow recorded 36 spills in 2025. That is more than 79% of the 14,239 overflows in England with a reported figure, and ranks 2,801st nationally. Among Yorkshire Water overflows it ranks 543rd of 2,176; the median Yorkshire Water overflow recorded 16 spills. 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.