Keynsham The Hams
Storm overflow operated by Wessex Water. The source names River Avon as the receiving water.
- 50
- Spills in 2025
- 46.6
- Recorded hours
- 100%
- Monitor operation
- 4
- Years listed
The reported spill count was 53 lower than in 2024. This compares event counts, not discharge volume.
Checking the latest monitor report…
How it compares in 2025
Keynsham The Hams recorded 50 spills in 2025. That is more than 88% of the 14,239 overflows in England with a reported figure, and ranks 1,626th nationally. Among Wessex Water overflows it ranks 106th of 1,332; the median Wessex Water overflow recorded 11 spills. On the Bristol Avon (By Bk to Netham Weir) waterbody it ranks 7th of 126.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 50 | 46.6 |
| England | 1,626th of 14,239 | 11 | 22.3 |
| Wessex Water | 106th of 1,332 | 11 | 18.9 |
| Bristol Avon (By Bk to Netham Weir) | 7th of 126 | 12 | 5.4 |
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 | 50 | 46.6 hours | 100% | Official data |
| 2024 | 103 | 122.1 hours | 99.7% | Official data |
| 2023 | 95 | 90.6 hours | 100% | Official data |
| 2022 | 55 | 83.6 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
- Wessex Water
- Outlet type
- Storm discharge at a pumping station
- Permit
- 013093
- Activity reference
- 1-STORM/EMERGENCY
- Grid reference
- ST6493569732
- Waterbody ID
- GB109053027371Official 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 discharge at pumping station”: storm discharge at a pumping station. The overflow is at a pumping station that moves sewage through the 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 1.7 km north of the Keynsham reference point in the ONS built-up areas data.
Area and water pages
- Bristol area →
- Kingswood and Fishponds area →
- Stoke Gifford area →
- Hambrook (South Gloucestershire) area →
- Bitton area →
- Leigh Woods area →
- Whiteshill area →
- Keynsham area →
- Upton Cheyney area →
- Whitchurch (Bath and North East Somerset) area →
- Saltford area →
- Wick (South Gloucestershire) area →
- Corston (Bath and North East Somerset) area →
- Newton St Loe area →
- Dundry area →
- Bristol Avon (By Bk to Netham Weir) 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
- Keynsham St Ladoc / Bristol RoadCurrent status unknown
Wessex Water · Charlton Bottom via SWS
- Keynsham Charlton Road O/S 138Current status unknown
Wessex Water · Charlton Bottom via SWS
- WillsbridgeCurrent status unknown
Wessex Water · River Avon
- Bristol Hanham Central AvenueCurrent status unknown
Wessex Water · Tributary of River Avon via SWS
Questions about Keynsham The Hams
- Who operates Keynsham The Hams?
- Wessex Water is the operator named in the annual record. The permit reference is 013093.
- Where does Keynsham The Hams discharge?
- The source names River Avon as the receiving water. This does not show how far a discharge travelled.
- How many times did Keynsham The Hams spill in 2025?
- The 2025 return records 50 counted spill events and 46.6 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 Keynsham The Hams 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 Keynsham The Hams?
- The annual return lists the asset type as “Storm discharge at pumping station”, which means storm discharge at a pumping station. The overflow is at a pumping station that moves sewage through the network.
- How does Keynsham The Hams compare with other overflows?
- Keynsham The Hams recorded 50 spills in 2025. That is more than 88% of the 14,239 overflows in England with a reported figure, and ranks 1,626th nationally. Among Wessex Water overflows it ranks 106th of 1,332; the median Wessex Water overflow recorded 11 spills. On the Bristol Avon (By Bk to Netham Weir) waterbody it ranks 7th of 126. 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.