Rochdale WwTW
Storm overflow operated by United Utilities. The source names River Roch as the receiving water.
- 104
- Spills in 2025
- 1,503.1
- Recorded hours
- 100%
- Monitor operation
- 2
- Years listed
The reported spill count was 12 lower than in 2024. This compares event counts, not discharge volume.
Checking the latest monitor report…
How it compares in 2025
Rochdale WwTW recorded 104 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 219th nationally. Among United Utilities overflows it ranks 65th of 2,270; the median United Utilities overflow recorded 15 spills. On the Roch (Spodden to Irwell) waterbody it ranks 1st of 23.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 104 | 1,503.1 |
| England | 219th of 14,239 | 11 | 22.3 |
| United Utilities | 65th of 2,270 | 15 | 29.1 |
| Roch (Spodden to Irwell) | 1st of 23 | 32 | 71.4 |
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 | 104 | 1,503.1 hours | 100% | Official data |
| 2024 | 116 | 1,678.9 hours | 100% | 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
- United Utilities
- Outlet type
- Storm tank at a wastewater treatment works
- Permit
- 016950041
- Activity reference
- A2
- Grid reference
- SD8817012380
- Waterbody ID
- GB112069064600Official 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 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 1.3 km south-west of the Rochdale 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
- Marland Hill SSOCurrent status unknown
United Utilities · River Roch
- Sudden Valley SSOCurrent status unknown
United Utilities · River Roch
- Norden/Bamford Outfall SSOCurrent status unknown
United Utilities · River Roch
- Oakenrod CSOCurrent status unknown
United Utilities · River Roch
Questions about Rochdale WwTW
- Who operates Rochdale WwTW?
- United Utilities is the operator named in the annual record. The permit reference is 016950041.
- Where does Rochdale WwTW discharge?
- The source names River Roch as the receiving water. This does not show how far a discharge travelled.
- How many times did Rochdale WwTW spill in 2025?
- The 2025 return records 104 counted spill events and 1,503.1 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 Rochdale WwTW 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 Rochdale WwTW?
- 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 Rochdale WwTW compare with other overflows?
- Rochdale WwTW recorded 104 spills in 2025. That is more than 98% of the 14,239 overflows in England with a reported figure, and ranks 219th nationally. Among United Utilities overflows it ranks 65th of 2,270; the median United Utilities overflow recorded 15 spills. On the Roch (Spodden to Irwell) waterbody it ranks 1st of 23. 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.