Bleach Green Farm CSO
Storm overflow operated by Northumbrian Water. The source names River Deerness as the receiving water.
- 22
- Spills in 2025
- 43.7
- Recorded hours
- 96%
- Monitor operation
- 2
- Years listed
Checking the latest monitor report…
How it compares in 2025
Bleach Green Farm CSO recorded 22 spills in 2025. That is more than 65% of the 14,239 overflows in England with a reported figure, and ranks 4,697th nationally. Among Northumbrian Water overflows it ranks 481st of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Deerness from Hedleyhope Burn to Browney waterbody it ranks 2nd of 7.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 22 | 43.7 |
| England | 4,697th of 14,239 | 11 | 22.3 |
| Northumbrian Water | 481st of 1,559 | 11 | 15.6 |
| Deerness from Hedleyhope Burn to Browney | 2nd of 7 | 8 | 23.5 |
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
| Year | Spills | Duration | Monitor operation | Source |
|---|---|---|---|---|
| 2025 | 22 | 43.7 hours | 96% | Official data |
| 2024 | 14 | 36.3 hours | 89%Low coverage | 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
- 244/0999
- Activity reference
- 1
- Grid reference
- NZ2369041750
- Waterbody ID
- GB103024077280Official 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 1.1 km south of the Ushaw Moor and Bearpark reference point in the ONS built-up areas data.
Area and water pages
- Whitehill (County Durham) area →
- Sacriston area →
- Nettlesworth and Kimblesworth area →
- Durham area →
- Great Lumley area →
- High Pittington area →
- Witton Gilbert area →
- Craghead 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 →
- New Brancepeth area →
- Bowburn area →
- Byers Green area →
- Deerness from Hedleyhope Burn to Browney 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
- Scout House Farm 2 CSOCurrent status unknown
Northumbrian Water · River Deerness
- Scout House Farm 1 CSOCurrent status unknown
Northumbrian Water · River Deerness
- Waterhouse CSOCurrent status unknown
Northumbrian Water · River Burn
- Broom Park Old Works CSOCurrent status unknown
Northumbrian Water · Relley Gill
Questions about Bleach Green Farm CSO
- Who operates Bleach Green Farm CSO?
- Northumbrian Water is the operator named in the annual record. The permit reference is 244/0999.
- Where does Bleach Green Farm CSO discharge?
- The source names River Deerness as the receiving water. This does not show how far a discharge travelled.
- How many times did Bleach Green Farm CSO spill in 2025?
- The 2025 return records 22 counted spill events and 43.7 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 96% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is Bleach Green 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 Bleach Green 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 Bleach Green Farm CSO compare with other overflows?
- Bleach Green Farm CSO recorded 22 spills in 2025. That is more than 65% of the 14,239 overflows in England with a reported figure, and ranks 4,697th nationally. Among Northumbrian Water overflows it ranks 481st of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Deerness from Hedleyhope Burn to Browney waterbody it ranks 2nd 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.