The well measures water levels in the Chalk aquifer. The well lies to the south of a north-west–south-east trending fault.
Our enquiries service can help you to access groundwater level data for this well.
Hydrograph
Ashton Farm hydrograph, 1974 to 2012. BGS © UKRI.
Our groundwater level records for Ashton Farm start in 1974.
Information about the well
Hydrogeological setting
| Ashton Farm | |
|---|---|
| Wellmaster ID | SY68/34 |
| NGR | 3661 0880 |
| Datum | 72.16 m AOD |
| Monitoring details | |
| Type | Groundwater Level |
| Aquifer | Chalk |
| Confinement | Unconfined |
| Depth | 11.7 m |
| Record | |
| Monitored by | EA South West |
| Records commence | 1974 |
| Records end | Active |
This well monitors water levels in the Chalk of Wessex.
It is dug into the Lewes Nodular Chalk Formation. The site lies on the south side of the west-north-west–east-south-east trending Winterbourne Abbas Fault with a downthrow to the north-north-east of 20 m.
Geological map of the area around Ashton Farm. BGS © UKRI.
Well or borehole construction
It is a brick lined well, 1.4 metres in diameter. It was originally sunk for a farm water supply.
Hydrograph response
The hydrograph has an annual sinusoidal appearance, with some response to intense winter rainfall events. Its response is rapid for a chalk well, presumably because of its shallow depth. It appears to have an unconstrained response, although levels tend to peak close to 71 m AOD, and have only been lower than 64 metres on rare occasions.
References
Topographic map with hillshade of the area around Ashton Farm. BGS © UKRI.
Acknowledgements
At a national level, groundwater level monitoring data is collected and managed by the Environment Agency (England), the Scottish Environmental Protection Agency, Natural Resources Wales and the Department of the Environment (Northern Ireland). Access to the data they collect (which includes many monitoring sites beyond those highlighted on these pages) and curate is online in England (DEFRA) and Scotland (SEPA).
Contact
Contact enquiries for further information.