Rattery STW So Rattery
Storm overflow operated by South West Water. The source names Bidwell Brook as the receiving water.
- 107
- Spills in 2025
- 1,712.6
- Recorded hours
- 100%
- Monitor operation
- 3
- Years listed
Checking the latest monitor report…
How it compares in 2025
Rattery STW So Rattery recorded 107 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 195th nationally. Among South West Water overflows it ranks 78th of 1,357; the median South West Water overflow recorded 21 spills. On the Bidwell Brook waterbody it ranks 1st of 5.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 107 | 1,712.6 |
| England | 195th of 14,239 | 11 | 22.3 |
| South West Water | 78th of 1,357 | 21 | 39.4 |
| Bidwell Brook | 1st of 5 | 45 | 270.9 |
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 | 107 | 1,712.6 hours | 100% | Official data |
| 2024 | 114 | 1,768.3 hours | 88.6%Low coverage | Official data |
| 2023 | 149 | 2,429.1 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
- South West Water
- Outlet type
- Inlet storm overflow at a wastewater treatment works
- Permit
- NRA-SW-1494
- Activity reference
- A1
- Grid reference
- SX74306158
- Waterbody ID
- GB108046005160Official 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 “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 4.3 km west of the Dartington 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
- Kilbury STW So BuckfastleighCurrent status unknown
South West Water · River Dart
- Kilbury STW SSO BuckfastleighCurrent status unknown
South West Water · River Dart
- Dartington Sch Two CSO DartingtonCurrent status unknown
South West Water · Bidwell Brook
- St Lukes Church CSO BuckfastleighCurrent status unknown
South West Water · Dean Burn
Questions about Rattery STW So Rattery
- Who operates Rattery STW So Rattery?
- South West Water is the operator named in the annual record. The permit reference is NRA-SW-1494.
- Where does Rattery STW So Rattery discharge?
- The source names Bidwell Brook as the receiving water. This does not show how far a discharge travelled.
- How many times did Rattery STW So Rattery spill in 2025?
- The 2025 return records 107 counted spill events and 1,712.6 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 Rattery STW So Rattery 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 Rattery STW So Rattery?
- 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 Rattery STW So Rattery compare with other overflows?
- Rattery STW So Rattery recorded 107 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 195th nationally. Among South West Water overflows it ranks 78th of 1,357; the median South West Water overflow recorded 21 spills. On the Bidwell Brook waterbody it ranks 1st of 5. 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.