Sewage Map

Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802)

Storm overflow operated by Northumbrian Water. The source names River Derwent as the receiving water.

38
Spills in 2025
62
Recorded hours
99.8%
Monitor operation
5
Years listed
Current status unknown

Checking the latest monitor report…

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How it compares in 2025

Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802) recorded 38 spills in 2025. That is more than 81% of the 14,239 overflows in England with a reported figure, and ranks 2,593rd nationally. Among Northumbrian Water overflows it ranks 230th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Derwent from Burnhope Burn to River Tyne waterbody it ranks 4th of 55.

GroupRank by spillsMedian spillsMedian hours
This outlet–3862
England2,593rd of 14,2391122.3
Northumbrian Water230th of 1,5591115.6
Derwent from Burnhope Burn to River Tyne4th of 5551.6

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

n/a2021n/a202202023112024382025
From 2023 to 2025, the reported count went from 0 to 38 spills. The highest count was 38 in 2025 and the lowest was 0 in 2023. The monitor worked for less than 90% of 2023, 2024, so those counts may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
20253862 hours99.8%Official data
20241139.3 hours26.3%Low coverageOfficial data
202300 hours4.8%Low coverageOfficial data
2022UnknownUnknown0%Low coverageOfficial data
2021UnknownUnknown0%Low coverageOfficial 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
Inlet storm overflow at a wastewater treatment works
Permit
234/1072
Activity reference
A3
Grid reference
NZ1718058850
Waterbody ID
GB103023074790Official 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 “Inlet SO at WwTW”: inlet storm overflow at a wastewater treatment works. The overflow is at the inlet of a treatment works, where wastewater enters the 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 1.4 km east of the Rowlands Gill 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 Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802)

Who operates Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802)?
Northumbrian Water is the operator named in the annual record. The permit reference is 234/1072.
Where does Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802) discharge?
The source names River Derwent as the receiving water. This does not show how far a discharge travelled.
How many times did Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802) spill in 2025?
The 2025 return records 38 counted spill events and 62 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 99.8% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802) 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 Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802)?
The annual return lists the asset type as “Inlet SO at WwTW”, which means inlet storm overflow at a wastewater treatment works. The overflow is at the inlet of a treatment works, where wastewater enters the works.
How does Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802) compare with other overflows?
Lockhaugh STW, Northumbrian Water (234/1072 · A3 · NWL00802) recorded 38 spills in 2025. That is more than 81% of the 14,239 overflows in England with a reported figure, and ranks 2,593rd nationally. Among Northumbrian Water overflows it ranks 230th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Derwent from Burnhope Burn to River Tyne waterbody it ranks 4th 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.