Shabbington STW
Storm overflow operated by Thames Water. The source names Shabbington Brook as the receiving water.
- 23
- Spills in 2025
- 321.5
- Recorded hours
- 87.9%
- Monitor operation
- 3
- Years listed
Checking the latest monitor report…
How it compares in 2025
Shabbington STW recorded 23 spills in 2025. That is more than 67% of the 14,239 overflows in England with a reported figure, and ranks 4,513th nationally. Among Thames Water overflows it ranks 150th of 579; the median Thames Water overflow recorded 6 spills.
The monitor worked for 87.9% of 2025, so this count may be low and its rank may understate activity.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 23 | 321.5 |
| England | 4,513th of 14,239 | 11 | 22.3 |
| Thames Water | 150th of 579 | 6 | 20.9 |
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 | 23 | 321.5 hours | 87.9%Low coverage | Official data |
| 2024 | 67 | 998.5 hours | 100% | Official data |
| 2023 | 48 | 575 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
- Thames Water
- Outlet type
- Storm tank at a wastewater treatment works, with treatment
- Permit
- CSSC.1429
- Activity reference
- A2
- Grid reference
- SP6624007350
- Waterbody ID
- GB106039030290Official 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 “Storm tank at WwTW - with treatment”: storm tank at a wastewater treatment works, with treatment. The overflow comes from storm storage at a treatment works. The return records this variant as discharging with treatment.
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 0.5 km north-west of the Shabbington 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
- Worminghall STWCurrent status unknown
Thames Water · Worminghallbrook
- Tetsworth STWCurrent status unknown
Thames Water · Latchford Brook
- Wheatley STWCurrent status unknown
Thames Water · Wheatley Ditch
- Forest Hill STWCurrent status unknown
Thames Water · Polecat End Ditch
Questions about Shabbington STW
- Who operates Shabbington STW?
- Thames Water is the operator named in the annual record. The permit reference is CSSC.1429.
- Where does Shabbington STW discharge?
- The source names Shabbington Brook as the receiving water. This does not show how far a discharge travelled.
- How many times did Shabbington STW spill in 2025?
- The 2025 return records 23 counted spill events and 321.5 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 87.9% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
- Is Shabbington STW 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 Shabbington STW?
- The annual return lists the asset type as “Storm tank at WwTW - with treatment”, which means storm tank at a wastewater treatment works, with treatment. The overflow comes from storm storage at a treatment works. The return records this variant as discharging with treatment.
- How does Shabbington STW compare with other overflows?
- Shabbington STW recorded 23 spills in 2025. That is more than 67% of the 14,239 overflows in England with a reported figure, and ranks 4,513th nationally. Among Thames Water overflows it ranks 150th of 579; the median Thames Water overflow recorded 6 spills. 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.