Tiverton STW SSO Tiverton
Storm overflow operated by South West Water. The source names River Exe as the receiving water.
- 160
- Spills in 2025
- 3,151.9
- Recorded hours
- 92%
- Monitor operation
- 5
- Years listed
The reported spill count was 11 lower than in 2024. This compares event counts, not discharge volume.
Checking the latest monitor report…
How it compares in 2025
Tiverton STW SSO Tiverton recorded 160 spills in 2025. That is more than 99% of the 14,239 overflows in England with a reported figure, and ranks 31st nationally. Among South West Water overflows it ranks 16th of 1,357; the median South West Water overflow recorded 21 spills. On the Exe (Barle to Culm) waterbody it ranks 1st of 15.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 160 | 3,151.9 |
| England | 31st of 14,239 | 11 | 22.3 |
| South West Water | 16th of 1,357 | 21 | 39.4 |
| Exe (Barle to Culm) | 1st of 15 | 4 | 1.4 |
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 | 160 | 3,151.9 hours | 92% | Official data |
| 2024 | 171 | 3,439.4 hours | 100% | Official data |
| 2023 | 13 | 292.9 hours | 35.2%Low coverage | Official data |
| 2022 | Unknown | Unknown | 0%Low coverage | Official data |
| 2021 | Unknown | Unknown | 0%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
- South West Water
- Outlet type
- Storm tank at a wastewater treatment works
- Permit
- 201437
- Activity reference
- A2
- Grid reference
- SS95301030
- Waterbody ID
- GB108045015050Official waterbody record ↗
- Location source
- Official annual grid reference
- Location precision
- About 10 metres
- Location note
- Unknown
About the name and type
The annual return lists this asset as “Storm tank at WwTW”: storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment 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 2.3 km south of the Tiverton 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
- Exeter Road Spst Pscsoeo TivertonCurrent status unknown
South West Water · Cottey Brook
- The Waldrons No 101 CSO TivertonCurrent status unknown
South West Water · River Exe
- Westexe North CSO TivertonCurrent status unknown
South West Water · River Exe
- Westexe Spst Pscsoeo TivertonCurrent status unknown
South West Water · River Exe
Questions about Tiverton STW SSO Tiverton
- Who operates Tiverton STW SSO Tiverton?
- South West Water is the operator named in the annual record. The permit reference is 201437.
- Where does Tiverton STW SSO Tiverton discharge?
- The source names River Exe as the receiving water. This does not show how far a discharge travelled.
- How many times did Tiverton STW SSO Tiverton spill in 2025?
- The 2025 return records 160 counted spill events and 3,151.9 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 92% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is Tiverton STW SSO Tiverton 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 10 metres. It shows the recorded outlet position, not the extent of any discharge.
- What kind of outlet is Tiverton STW SSO Tiverton?
- The annual return lists the asset type as “Storm tank at WwTW”, which means storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.
- How does Tiverton STW SSO Tiverton compare with other overflows?
- Tiverton STW SSO Tiverton recorded 160 spills in 2025. That is more than 99% of the 14,239 overflows in England with a reported figure, and ranks 31st nationally. Among South West Water overflows it ranks 16th of 1,357; the median South West Water overflow recorded 21 spills. On the Exe (Barle to Culm) waterbody it ranks 1st of 15. 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.