Wooler STW
Storm overflow operated by Northumbrian Water. The source names Wooler Water as the receiving water.
- 68
- Spills in 2025
- 110.4
- Recorded hours
- 100%
- Monitor operation
- 6
- Years listed
The reported spill count was 17 lower than in 2024. This compares event counts, not discharge volume.
Checking the latest monitor report…
How it compares in 2025
Wooler STW recorded 68 spills in 2025. That is more than 94% of the 14,239 overflows in England with a reported figure, and ranks 822nd nationally. Among Northumbrian Water overflows it ranks 50th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Wooler Water from Harthope Burn to Till waterbody it ranks 1st of 5.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 68 | 110.4 |
| England | 822nd of 14,239 | 11 | 22.3 |
| Northumbrian Water | 50th of 1,559 | 11 | 15.6 |
| Wooler Water from Harthope Burn to Till | 1st of 5 | 12 | 14 |
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
| Year | Spills | Duration | Monitor operation | Source |
|---|---|---|---|---|
| 2025 | 68 | 110.4 hours | 100% | Official data |
| 2024 | 85 | 206.8 hours | 100% | Official data |
| 2023 | 101 | 229 hours | 99.9% | Official data |
| 2022 | 73 | 111.4 hours | 99.7% | Official data |
| 2021 | 20 | 218.5 hours | 16.6%Low coverage | Official data |
| 2020 | 34 | 164.1 hours | 98.6% | 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
- 210/1275
- Activity reference
- A2
- Grid reference
- NT9990629453
- Waterbody ID
- GB102021072930Official 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 1.6 km north-east of the Wooler 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
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- South Road No 18 CSOCurrent status unknown
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Questions about Wooler STW
- Who operates Wooler STW?
- Northumbrian Water is the operator named in the annual record. The permit reference is 210/1275.
- Where does Wooler STW discharge?
- The source names Wooler Water as the receiving water. This does not show how far a discharge travelled.
- How many times did Wooler STW spill in 2025?
- The 2025 return records 68 counted spill events and 110.4 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 100% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is Wooler 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 Wooler 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 Wooler STW compare with other overflows?
- Wooler STW recorded 68 spills in 2025. That is more than 94% of the 14,239 overflows in England with a reported figure, and ranks 822nd nationally. Among Northumbrian Water overflows it ranks 50th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Wooler Water from Harthope Burn to Till waterbody it ranks 1st of 5. 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.