Ashville Street/CSO
Storm overflow operated by Yorkshire Water. The source names River Foss as the receiving water.
- Unknown
- Spills in 2025
- Unknown
- Recorded hours
- 0%
- Monitor operation
- 6
- Years listed
Checking the latest monitor report…
Annual spill history
| Year | Spills | Duration | Monitor operation | Source |
|---|---|---|---|---|
| 2025 | Unknown | Unknown | 0%Low coverage | Official data |
| 2024 | 0 | 0 hours | 82.9%Low coverage | Official data |
| 2023 | 0 | 0 hours | 98.3% | Official data |
| 2022 | 0 | 0 hours | 100% | Official data |
| 2021 | 0 | 0 hours | 100% | Official data |
| 2020 | 0 | 0 hours | 99.7% | 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
- Yorkshire Water
- Outlet type
- Storm overflow on the sewer network
- Permit
- 27/24/0461
- Activity reference
- 1
- Grid reference
- SE6088053221
- Waterbody ID
- GB104027063520Official 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 1.9 km north-east of the York 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
- Kitchener Street/CSOCurrent status unknown
Yorkshire Water · River Foss
- Haxby Road/CSOCurrent status unknown
Yorkshire Water · Culverted Tributary of River Foss
- Oakville Street/CSOCurrent status unknown
Yorkshire Water · River Foss
- Wiggington Road/CSOCurrent status unknown
Yorkshire Water · River Foss
Questions about Ashville Street/CSO
- Who operates Ashville Street/CSO?
- Yorkshire Water is the operator named in the annual record. The permit reference is 27/24/0461.
- Where does Ashville Street/CSO discharge?
- The source names River Foss as the receiving water. This does not show how far a discharge travelled.
- How many times did Ashville Street/CSO spill in 2025?
- The 2025 return has no usable spill count for this outlet. Missing is not the same as zero.
- Can I trust the 2025 figures for this outlet?
- The monitor worked for 0% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
- Is Ashville Street/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 Ashville Street/CSO?
- 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.
- 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.