Sewage Map

St Teath STW So St Teath

Storm overflow operated by South West Water. The source names Tributary of River Allen as the receiving water.

101
Spills in 2025
101.2
Recorded hours
97.6%
Monitor operation
5
Years listed

The reported spill count was 18 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

St Teath STW So St Teath recorded 101 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 244th nationally. Among South West Water overflows it ranks 96th of 1,357; the median South West Water overflow recorded 21 spills. On the Allen waterbody it ranks 2nd of 4.

GroupRank by spillsMedian spillsMedian hours
This outlet–101101.2
England244th of 14,2391122.3
South West Water96th of 1,3572139.4
Allen2nd of 45665.7

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

11220211042022121202311920241012025
From 2021 to 2025, the reported count went from 112 to 101 spills. The highest count was 121 in 2023 and the lowest was 101 in 2025.
YearSpillsDurationMonitor operationSource
2025101101.2 hours97.6%Official data
2024119103 hours100%Official data
2023121114.7 hours100%Official data
202210457.3 hours97%Official data
2021112101.9 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
Inlet storm overflow at a wastewater treatment works
Permit
302142
Activity reference
A2
Grid reference
SX05928059
Waterbody ID
GB108049007050Official 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 “Inlet SO at WwTW”: inlet storm overflow at a wastewater treatment works. The overflow is at the inlet of a treatment works, where wastewater enters the 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 0.3 km west of the St Teath 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 St Teath STW So St Teath

Who operates St Teath STW So St Teath?
South West Water is the operator named in the annual record. The permit reference is 302142.
Where does St Teath STW So St Teath discharge?
The source names Tributary of River Allen as the receiving water. This does not show how far a discharge travelled.
How many times did St Teath STW So St Teath spill in 2025?
The 2025 return records 101 counted spill events and 101.2 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 97.6% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is St Teath STW So St Teath 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 St Teath STW So St Teath?
The annual return lists the asset type as “Inlet SO at WwTW”, which means inlet storm overflow at a wastewater treatment works. The overflow is at the inlet of a treatment works, where wastewater enters the works.
How does St Teath STW So St Teath compare with other overflows?
St Teath STW So St Teath recorded 101 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 244th nationally. Among South West Water overflows it ranks 96th of 1,357; the median South West Water overflow recorded 21 spills. On the Allen 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.