Newbridge

This well is used to measure water levels in the Permian-aged Appleby Group sandstone aquifer, north-west of Dumfries in south-west Scotland.

BGS Enquiries can help you to access groundwater level data for this well.

Information about the well

Hydrogeological setting

Newbridge
Wellmaster ID NX97/39
NGR 2951 5788
Datum 15.7  m AOD
Monitoring details
Type Groundwater level
Aquifer Permo–Triassic sandstone
Confinement Unconfined
Depth 28 m
Record
Monitored by SEPA
Records commence 1993
Records end Active

The well is located in the Quaternary-aged Kilblane Sand and Gravel Formation, which is underlain by the Permian-aged Locharbriggs Sandstone Formation near its boundary with the Doweel Breccia Formation — both are part of the Appleby Group. The Locharbriggs Sandstone Formation is likely to be in hydraulic continuity with the overlying superficial deposits.

Well or borehole construction

The original borehole was 26.6 m deep and there is some uncertainty over the bottom diameter. The borehole was later deepened to 28 m and it has been assumed that this is the only part that is 70 mm in diameter; it is possible that the diameter decreases at the base of the casing.

Hydrograph response

The hydrograph exhibits an annual sinusoidal, but somewhat spiky, response with the water level remaining in the cased out superficial deposits section of the borehole. The minimum water level appears to possibly be controlled by the river level, as the borehole is about 210 m south of Cluden Water.

References

MacDonald, A M, Ball, D F, and Darling, W G. 2000. The Permian aquifer of Dumfries: groundwater chemistry and age. British Geological Survey Technical Report WD/00/024. (Wallingford, UK: British Geological Survey.) (Unpublished.)

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).

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Contact

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