Fenwick (Berwick) STW

Storm overflow operated by Northumbrian Water. The source names Fenwick Burn as the receiving water.

77
Spills in 2025: 346
Recorded hours: 98.7%
Monitor operation: 5
Years listed

The reported spill count was 52 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

Checking the latest monitor report…

How it compares in 2025

Fenwick (Berwick) STW recorded 77 spills in 2025. That is more than 95% of the 14,239 overflows in England with a reported figure, and ranks 565th nationally. Among Northumbrian Water overflows it ranks 33rd of 1,559; the median Northumbrian Water overflow recorded 11 spills.

Group	Rank by spills	Median spills	Median hours
This outlet	–	77	346
England	565th of 14,239	11	22.3
Northumbrian Water	33rd of 1,559	11	15.6

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

From 2021 to 2025, the reported count went from 45 to 77 spills. The highest count was 129 in 2024 and the lowest was 13 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.

Year	Spills	Duration	Monitor operation	Source
2025	77	346 hours	98.7%	Official data
2024	129	1,079.8 hours	99.7%	Official data
2023	116	1,050.5 hours	100%	Official data
2022	13	48.3 hours	44.5%Low coverage	Official data
2021	45	455 hours	100%	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: Inlet storm overflow at a wastewater treatment works
Permit: 221/0968
Activity reference: A2
Grid reference: NU0683240072
Waterbody ID: GB103022076490Official 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 4.5 km south-east of the Haggerston reference point in the ONS built-up areas data.

Area and water pages

Fenham Burn Catchment (to N Sea) waterbody →

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

Haggerston Castle STW
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Current status unknown

Lowick Sewage Treatment Works
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Current status unknown
Lowick Sewage Treatment Works
Northumbrian Water · Tributary of the Low
Current status unknown
Kyloe View SSO
Northumbrian Water · Tributary of the Low
Current status unknown

Questions about Fenwick (Berwick) STW

Who operates Fenwick (Berwick) STW?: Northumbrian Water is the operator named in the annual record. The permit reference is 221/0968.
Where does Fenwick (Berwick) STW discharge?: The source names Fenwick Burn as the receiving water. This does not show how far a discharge travelled.
How many times did Fenwick (Berwick) STW spill in 2025?: The 2025 return records 77 counted spill events and 346 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 98.7% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Fenwick (Berwick) STW 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 Fenwick (Berwick) STW?: 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 Fenwick (Berwick) STW compare with other overflows?: Fenwick (Berwick) STW recorded 77 spills in 2025. That is more than 95% of the 14,239 overflows in England with a reported figure, and ranks 565th nationally. Among Northumbrian Water overflows it ranks 33rd of 1,559; the median Northumbrian Water overflow recorded 11 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.