Harlestone Sp
Storm overflow operated by Anglian Water. The source names R Nene (Whilton Branch) as the receiving water.
- 50
- Spills in 2025
- 761.8
- Recorded hours
- 100%
- Monitor operation
- 5
- Years listed
The reported spill count was 107 lower than in 2024. This compares event counts, not discharge volume.
We do not have a live report for this outlet. Its annual spill records are shown below.
How it compares in 2025
Harlestone Sp 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 Anglian Water overflows it ranks 54th of 1,438; the median Anglian Water overflow recorded 6 spills. On the Church Brampton Arm waterbody it ranks 1st of 5.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 50 | 761.8 |
| England | 1,626th of 14,239 | 11 | 22.3 |
| Anglian Water | 54th of 1,438 | 6 | 13.5 |
| Church Brampton Arm | 1st of 5 | 23 | 96.5 |
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 | 761.8 hours | 100% | Official data |
| 2024 | 157 | 3,378.5 hours | 100% | Official data |
| 2023 | 2 | 21 hours | 100% | Official data |
| 2022 | Unknown | Unknown | Unknown | Official data |
| 2021 | Unknown | Unknown | Unknown | 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
- Anglian Water
- Outlet type
- Storm discharge at a pumping station
- Permit
- AWENF2360
- Activity reference
- A1
- Grid reference
- SP7130066200
- Waterbody ID
- GB105032045380Official 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 0.9 km north-west of the Church Brampton 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
- Church Brampton SpCurrent status unknown
Anglian Water · R Nene (Brixworth Branch)
- Boughton SpCurrent status unknown
Anglian Water · Unknown Trib
- Northampton-Nene Court SpCurrent status unknown
Anglian Water · The River Nene
- Northampton-Duston Main Rd SSOCurrent status unknown
Anglian Water · Dallington Brook
Questions about Harlestone Sp
- Who operates Harlestone Sp?
- Anglian Water is the operator named in the annual record. The permit reference is AWENF2360.
- Where does Harlestone Sp discharge?
- The source names R Nene (Whilton Branch) as the receiving water. This does not show how far a discharge travelled.
- How many times did Harlestone Sp spill in 2025?
- The 2025 return records 50 counted spill events and 761.8 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 Harlestone Sp discharging right now?
- This record is not matched to a company live feed, so we cannot show a current report. Only the annual figures are available for this outlet.
- 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 Harlestone Sp?
- 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 Harlestone Sp compare with other overflows?
- Harlestone Sp 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 Anglian Water overflows it ranks 54th of 1,438; the median Anglian Water overflow recorded 6 spills. On the Church Brampton Arm 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.