Sewage Map

Lower Moor STW (CSO)

Storm overflow operated by Severn Trent Water. The source names Tributary of River Avon as the receiving water.

18
Spills in 2025
312.5
Recorded hours
100%
Monitor operation
6
Years listed

The reported spill count was 207 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

Lower Moor STW (CSO) recorded 18 spills in 2025. That is more than 60% of the 14,239 overflows in England with a reported figure, and ranks 5,407th nationally. Among Severn Trent Water overflows it ranks 716th of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Avon conf Workman Br, Evesham to conf R Severn waterbody it ranks 7th of 17.

GroupRank by spillsMedian spillsMedian hours
This outlet–18312.5
England5,407th of 14,2391122.3
Severn Trent Water716th of 2,431816.2
Avon conf Workman Br, Evesham to conf R Severn7th of 171347.8

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

13620201032021103202219820232252024182025
From 2020 to 2025, the reported count went from 136 to 18 spills. The highest count was 225 in 2024 and the lowest was 18 in 2025. The monitor worked for less than 90% of 2023, so that count may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
202518312.5 hours100%Official data
20242254,428.3 hours99.3%Official data
20231983,063.6 hours86.9%Low coverageOfficial data
2022103995.4 hours96.2%Official data
20211031,535.6 hours97.2%Official data
20201362,299.1 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
Severn Trent Water
Outlet type
Inlet storm overflow at a wastewater treatment works
Permit
S/17/25770/R
Activity reference
A2
Grid reference
SO9761846821
Waterbody ID
GB109054044403Official 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 “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 0.6 km south-west of the Lower Moor 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 Lower Moor STW (CSO)

Who operates Lower Moor STW (CSO)?
Severn Trent Water is the operator named in the annual record. The permit reference is S/17/25770/R.
Where does Lower Moor STW (CSO) discharge?
The source names Tributary of River Avon as the receiving water. This does not show how far a discharge travelled.
How many times did Lower Moor STW (CSO) spill in 2025?
The 2025 return records 18 counted spill events and 312.5 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 Lower Moor STW (CSO) 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 Lower Moor STW (CSO)?
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 Lower Moor STW (CSO) compare with other overflows?
Lower Moor STW (CSO) recorded 18 spills in 2025. That is more than 60% of the 14,239 overflows in England with a reported figure, and ranks 5,407th nationally. Among Severn Trent Water overflows it ranks 716th of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Avon conf Workman Br, Evesham to conf R Severn waterbody it ranks 7th of 17. 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.