Cone Lane (Chester No 4) CSO
Storm overflow operated by Northumbrian Water. The source names Chester Burn as the receiving water.
- 7
- Spills in 2025
- 1.6
- Recorded hours
- 100%
- Monitor operation
- 2
- Years listed
The reported spill count was 3 higher than in 2024. This compares event counts, not discharge volume.
Checking the latest monitor report…
How it compares in 2025
Cone Lane (Chester No 4) CSO recorded 7 spills in 2025. That is more than 40% of the 14,239 overflows in England with a reported figure, and ranks 8,130th nationally. Among Northumbrian Water overflows it ranks 891st of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Cong Burn from Twizell Burn to Wear waterbody it ranks 6th of 12.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 7 | 1.6 |
| England | 8,130th of 14,239 | 11 | 22.3 |
| Northumbrian Water | 891st of 1,559 | 11 | 15.6 |
| Cong Burn from Twizell Burn to Wear | 6th of 12 | 7 | 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
| Year | Spills | Duration | Monitor operation | Source |
|---|---|---|---|---|
| 2025 | 7 | 1.6 hours | 100% | Official data |
| 2024 | 4 | 1.5 hours | 97% | 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
- 245/1328
- Activity reference
- A1
- Grid reference
- NZ2744951601
- Waterbody ID
- GB103024077600Official 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 0.4 km north-east of the Chester-le-Street reference point in the ONS built-up areas data.
Area and water pages
- Gateshead area →
- Kibblesworth area →
- Follingsby area →
- Springwell area →
- Birtley area →
- Urpeth area →
- Washington area →
- Sunniside area →
- Pelton and Ouston area →
- Beamish area →
- Whitehill (County Durham) area →
- Tanfield Lea area →
- Sacriston area →
- Nettlesworth and Kimblesworth area →
- Chester-le-Street area →
- Durham area →
- Newfield area →
- Great Lumley area →
- West Pelton area →
- Fence Houses area →
- Houghton-le-Spring area →
- High Pittington area →
- Penshaw area →
- Witton Gilbert area →
- Craghead area →
- East Rainton area →
- Ushaw Moor and Bearpark area →
- West Rainton area →
- Bournmoor area →
- Stanley (County Durham) area →
- Shiney Row and Penshaw area →
- Langley Park area →
- Hetton-le-Hole area →
- Cong Burn from Twizell Burn 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
- Tuart Street CSO (No1)Current status unknown
Northumbrian Water · Culverted water course to Chester Burn
- Front Street CSO Ch68Current status unknown
Northumbrian Water · Chester Burn
- Pelaw Bank CSO Ch57Current status unknown
Northumbrian Water · Chester Burn
- Hopgarth Gardens CSOCurrent status unknown
Northumbrian Water · Cong Burn
Questions about Cone Lane (Chester No 4) CSO
- Who operates Cone Lane (Chester No 4) CSO?
- Northumbrian Water is the operator named in the annual record. The permit reference is 245/1328.
- Where does Cone Lane (Chester No 4) CSO discharge?
- The source names Chester Burn as the receiving water. This does not show how far a discharge travelled.
- How many times did Cone Lane (Chester No 4) CSO spill in 2025?
- The 2025 return records 7 counted spill events and 1.6 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 100% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is Cone Lane (Chester No 4) 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 Cone Lane (Chester No 4) 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 Cone Lane (Chester No 4) CSO compare with other overflows?
- Cone Lane (Chester No 4) CSO recorded 7 spills in 2025. That is more than 40% of the 14,239 overflows in England with a reported figure, and ranks 8,130th nationally. Among Northumbrian Water overflows it ranks 891st of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Cong Burn from Twizell Burn to Wear waterbody it ranks 6th of 12. 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.