Snowdons Farm CSO
Storm overflow operated by Northumbrian Water. The source names River Browney as the receiving water.
- 36
- Spills in 2025
- 346.6
- Recorded hours
- 99.7%
- Monitor operation
- 2
- Years listed
The reported spill count was 10 lower than in 2024. This compares event counts, not discharge volume.
Checking the latest monitor report…
How it compares in 2025
Snowdons Farm CSO 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 Northumbrian Water overflows it ranks 259th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Browney from Deerness confl to Wear waterbody it ranks 3rd of 7.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 36 | 346.6 |
| England | 2,801st of 14,239 | 11 | 22.3 |
| Northumbrian Water | 259th of 1,559 | 11 | 15.6 |
| Browney from Deerness confl to Wear | 3rd of 7 | 16 | 42.4 |
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 | 36 | 346.6 hours | 99.7% | Official data |
| 2024 | 46 | 598.2 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
- Storm overflow on the sewer network
- Permit
- 244/1000
- Activity reference
- 1
- Grid reference
- NZ2586040040
- Waterbody ID
- GB103024077552Official 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 1.4 km east of the Brandon (County Durham) reference point in the ONS built-up areas data.
Area and water pages
- Sacriston area →
- Nettlesworth and Kimblesworth area →
- Durham area →
- Great Lumley area →
- High Pittington area →
- Witton Gilbert area →
- Ushaw Moor and Bearpark area →
- Sherburn (County Durham) area →
- West Rainton area →
- Brandon (County Durham) area →
- Langley Park area →
- Sherburn Hill area →
- Croxdale area →
- High Shincliffe area →
- Spennymoor area →
- Shadforth area →
- New Brancepeth area →
- Bowburn area →
- Byers Green area →
- Browney from Deerness confl to Wear 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
- Durham University STWCurrent status unknown
Northumbrian Water · Saltwell Gill
- Durham University STWCurrent status unknown
Northumbrian Water · Saltwell Gill
- Browney STWCurrent status unknown
Northumbrian Water · Browney
- Quarry Heads Lane CSOCurrent status unknown
Northumbrian Water · River Wear
Questions about Snowdons Farm CSO
- Who operates Snowdons Farm CSO?
- Northumbrian Water is the operator named in the annual record. The permit reference is 244/1000.
- Where does Snowdons Farm CSO discharge?
- The source names River Browney as the receiving water. This does not show how far a discharge travelled.
- How many times did Snowdons Farm CSO spill in 2025?
- The 2025 return records 36 counted spill events and 346.6 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 99.7% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is Snowdons Farm 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 Snowdons Farm 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 Snowdons Farm CSO compare with other overflows?
- Snowdons Farm CSO 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 Northumbrian Water overflows it ranks 259th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Browney from Deerness confl to Wear waterbody it ranks 3rd of 7. 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.