Sewage Map

Hawkwell So

Storm overflow operated by Wessex Water. The source names River Avill as the receiving water.

92
Spills in 2025
96
Recorded hours
100%
Monitor operation
4
Years listed

The reported spill count was 21 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

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How it compares in 2025

Hawkwell So recorded 92 spills in 2025. That is more than 97% of the 14,239 overflows in England with a reported figure, and ranks 331st nationally. Among Wessex Water overflows it ranks 13th of 1,332; the median Wessex Water overflow recorded 11 spills.

GroupRank by spillsMedian spillsMedian hours
This outlet–9296
England331st of 14,2391122.3
Wessex Water13th of 1,3321118.9

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

86202213420231132024922025
From 2022 to 2025, the reported count went from 86 to 92 spills. The highest count was 134 in 2023 and the lowest was 86 in 2022.
YearSpillsDurationMonitor operationSource
20259296 hours100%Official data
2024113193.6 hours96.7%Official data
2023134302.1 hours99.7%Official data
20228669.5 hours100%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 overflow on the sewer network
Permit
070230
Activity reference
1-STORM OVERFLOW
Grid reference
SS9259539770
Waterbody ID
GB108051020210Official 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 “SO on sewer network”: storm overflow on the sewer network. The return places this overflow on the sewer 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 3.8 km south of the Wootton Courtenay 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.

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Other outlet records nearby

Questions about Hawkwell So

Who operates Hawkwell So?
Wessex Water is the operator named in the annual record. The permit reference is 070230.
Where does Hawkwell So discharge?
The source names River Avill as the receiving water. This does not show how far a discharge travelled.
How many times did Hawkwell So spill in 2025?
The 2025 return records 92 counted spill events and 96 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 Hawkwell So 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 Hawkwell So?
The annual return lists the asset type as “SO on sewer network”, which means storm overflow on the sewer network. The return places this overflow on the sewer network.
How does Hawkwell So compare with other overflows?
Hawkwell So recorded 92 spills in 2025. That is more than 97% of the 14,239 overflows in England with a reported figure, and ranks 331st nationally. Among Wessex Water overflows it ranks 13th of 1,332; the median Wessex Water overflow recorded 11 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.