South Normanton STW 12Dwf (So)
Storm overflow operated by Severn Trent Water. The source names Normanton Brook as the receiving water.
- 3
- Spills in 2025
- 27.7
- Recorded hours
- 98.8%
- Monitor operation
- 1
- Years listed
We do not have a live report for this outlet. Its annual spill records are shown below.
How it compares in 2025
South Normanton STW 12Dwf (So) recorded 3 spills in 2025. That is more than 26% of the 14,239 overflows in England with a reported figure, and ranks 9,843rd nationally. Among Severn Trent Water overflows it ranks 1,593rd of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Alfreton Brook from Source to Westwood Brook waterbody it ranks 6th of 11.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 3 | 27.7 |
| England | 9,843rd of 14,239 | 11 | 22.3 |
| Severn Trent Water | 1,593rd of 2,431 | 8 | 16.2 |
| Alfreton Brook from Source to Westwood Brook | 6th of 11 | 3 | 24.8 |
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 | 3 | 27.7 hours | 98.8% | 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
- Severn Trent Water
- Outlet type
- Inlet storm overflow at a wastewater treatment works
- Permit
- T/41/46401/R
- Activity reference
- A4
- Grid reference
- SK4485957679
- Waterbody ID
- GB104028052350Official 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 1.7 km south-east of the Newton and Blackwell 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
- South Normanton STW 3Dwf (SSTO)Current status unknown
Severn Trent Water · Normanton Brook
- South Normanton STW 6Dwf (So)Current status unknown
Severn Trent Water · Normanton Brook
- Hilcote - New Lane (SSO)Current status unknown
Severn Trent Water · Normanton Brook
- South Normanton - Water Lane (CSO)Current status unknown
Severn Trent Water · Tributary of Normanton Brook
Questions about South Normanton STW 12Dwf (So)
- Who operates South Normanton STW 12Dwf (So)?
- Severn Trent Water is the operator named in the annual record. The permit reference is T/41/46401/R.
- Where does South Normanton STW 12Dwf (So) discharge?
- The source names Normanton Brook as the receiving water. This does not show how far a discharge travelled.
- How many times did South Normanton STW 12Dwf (So) spill in 2025?
- The 2025 return records 3 counted spill events and 27.7 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 98.8% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is South Normanton STW 12Dwf (So) discharging right now?
- This record is not matched to a company live feed, so we cannot show a current report. Only the annual figures are available for this outlet.
- 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 South Normanton STW 12Dwf (So)?
- 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 South Normanton STW 12Dwf (So) compare with other overflows?
- South Normanton STW 12Dwf (So) recorded 3 spills in 2025. That is more than 26% of the 14,239 overflows in England with a reported figure, and ranks 9,843rd nationally. Among Severn Trent Water overflows it ranks 1,593rd of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Alfreton Brook from Source to Westwood Brook waterbody it ranks 6th of 11. 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.