Marston St Lawrence SPS
Storm overflow operated by Thames Water. The receiving water is not named in this record.
- 29
- Spills in 2025
- 151.6
- Recorded hours
- 99.2%
- Monitor operation
- 2
- Years listed
Checking the latest monitor report…
How it compares in 2025
Marston St Lawrence SPS recorded 29 spills in 2025. That is more than 73% of the 14,239 overflows in England with a reported figure, and ranks 3,624th nationally. Among Thames Water overflows it ranks 116th of 579; the median Thames Water overflow recorded 6 spills. On the Farthinghoe Stream (Source to Cherwell) and tributaries waterbody it ranks 2nd of 4.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 29 | 151.6 |
| England | 3,624th of 14,239 | 11 | 22.3 |
| Thames Water | 116th of 579 | 6 | 20.9 |
| Farthinghoe Stream (Source to Cherwell) and tributaries | 2nd of 4 | 21 | 137.3 |
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 | 29 | 151.6 hours | 99.2% | Official data |
| 2024 | 66 | 654.4 hours | 87%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
- Thames Water
- Outlet type
- Storm discharge at a pumping station
- Permit
- Permit applied for
- Activity reference
- Unknown
- Grid reference
- SP5364241713
- Waterbody ID
- GB106039037290Official 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 2 km north of the Farthinghoe 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
- Middleton Cheney STWCurrent status unknown
Thames Water · Washle Brook
- Banbury Road (Kings Sutton) SPSCurrent status unknown
Thames Water · Middleton Brook
- Culworth STWCurrent status unknown
Thames Water · Culworth Brook
- Chacombe STWCurrent status unknown
Thames Water · Chacombe Brook
Questions about Marston St Lawrence SPS
- Who operates Marston St Lawrence SPS?
- Thames Water is the operator named in the annual record. The permit reference is Permit applied for.
- Where does Marston St Lawrence SPS discharge?
- The annual record does not provide a usable receiving-water name.
- How many times did Marston St Lawrence SPS spill in 2025?
- The 2025 return records 29 counted spill events and 151.6 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 99.2% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
- Is Marston St Lawrence SPS 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 Marston St Lawrence SPS?
- 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 Marston St Lawrence SPS compare with other overflows?
- Marston St Lawrence SPS recorded 29 spills in 2025. That is more than 73% of the 14,239 overflows in England with a reported figure, and ranks 3,624th nationally. Among Thames Water overflows it ranks 116th of 579; the median Thames Water overflow recorded 6 spills. On the Farthinghoe Stream (Source to Cherwell) and tributaries waterbody it ranks 2nd of 4. 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.