Sewage Map

Spreyton STW SSO Spreyton

Storm overflow operated by South West Water. The source names Coombe Stream(S) as the receiving water.

113
Spills in 2025
1,683.8
Recorded hours
100%
Monitor operation
5
Years listed

The reported spill count was 39 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

Checking the latest monitor report…

Open official annual data ↗

How it compares in 2025

Spreyton STW SSO Spreyton recorded 113 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 167th nationally. Among South West Water overflows it ranks 68th of 1,357; the median South West Water overflow recorded 21 spills. On the Upper River Yeo (Lapford) waterbody it ranks 1st of 4.

GroupRank by spillsMedian spillsMedian hours
This outlet–1131,683.8
England167th of 14,2391122.3
South West Water68th of 1,3572139.4
Upper River Yeo (Lapford)1st of 452.5847.6

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

02021942022125202315220241132025
From 2021 to 2025, the reported count went from 0 to 113 spills. The highest count was 152 in 2024 and the lowest was 0 in 2021.
YearSpillsDurationMonitor operationSource
20251131,683.8 hours100%Official data
20241522,465.9 hours100%Official data
20231252,149.1 hours100%Official data
2022941,363.5 hours100%Official data
202100 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
South West Water
Outlet type
Storm tank at a wastewater treatment works
Permit
203380
Activity reference
A3
Grid reference
SX69859752
Waterbody ID
GB108050008270Official waterbody record ↗
Location source
Official annual grid reference
Location precision
About 10 metres
Location note
Unknown

About the name and type

The annual return lists this asset as “Storm tank at WwTW”: storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.

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 4.7 km south-west of the Bow 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

Questions about Spreyton STW SSO Spreyton

Who operates Spreyton STW SSO Spreyton?
South West Water is the operator named in the annual record. The permit reference is 203380.
Where does Spreyton STW SSO Spreyton discharge?
The source names Coombe Stream(S) as the receiving water. This does not show how far a discharge travelled.
How many times did Spreyton STW SSO Spreyton spill in 2025?
The 2025 return records 113 counted spill events and 1,683.8 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 Spreyton STW SSO Spreyton 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 10 metres. It shows the recorded outlet position, not the extent of any discharge.
What kind of outlet is Spreyton STW SSO Spreyton?
The annual return lists the asset type as “Storm tank at WwTW”, which means storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.
How does Spreyton STW SSO Spreyton compare with other overflows?
Spreyton STW SSO Spreyton recorded 113 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 167th nationally. Among South West Water overflows it ranks 68th of 1,357; the median South West Water overflow recorded 21 spills. On the Upper River Yeo (Lapford) waterbody it ranks 1st 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.