Sewage Map

Bluehouse Gill CSO

Storm overflow operated by Northumbrian Water. The source names Bluehouse Gill (North Sea) as the receiving water.

104
Spills in 2025
930.9
Recorded hours
99.6%
Monitor operation
2
Years listed

The reported spill count was 7 higher than in 2024. This compares event counts, not discharge volume.

Current status unknown

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How it compares in 2025

Bluehouse Gill CSO recorded 104 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 219th nationally. Among Northumbrian Water overflows it ranks 11th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Tyne and Wear waterbody it ranks 1st of 55.

GroupRank by spillsMedian spillsMedian hours
This outlet–104930.9
England219th of 14,2391122.3
Northumbrian Water11th of 1,5591115.6
Tyne and Wear1st of 5530.5

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

9720241042025
From 2024 to 2025, the reported count went from 97 to 104 spills. The highest count was 104 in 2025 and the lowest was 97 in 2024.
YearSpillsDurationMonitor operationSource
2025104930.9 hours99.6%Official data
2024971,034.7 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
Northumbrian Water
Outlet type
Storm overflow on the sewer network
Permit
255/1075
Activity reference
A1
Grid reference
NZ4628939473
Waterbody ID
GB650301500002Official 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 0.6 km east of the Blackhall Colliery 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 Bluehouse Gill CSO

Who operates Bluehouse Gill CSO?
Northumbrian Water is the operator named in the annual record. The permit reference is 255/1075.
Where does Bluehouse Gill CSO discharge?
The source names Bluehouse Gill (North Sea) as the receiving water. This does not show how far a discharge travelled.
How many times did Bluehouse Gill CSO spill in 2025?
The 2025 return records 104 counted spill events and 930.9 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 99.6% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Bluehouse Gill 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 Bluehouse Gill 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 Bluehouse Gill CSO compare with other overflows?
Bluehouse Gill CSO recorded 104 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 219th nationally. Among Northumbrian Water overflows it ranks 11th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Tyne and Wear waterbody it ranks 1st of 55. 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.