Newbridge

This well is used to measure water levels in the Permo-Triassic sandstone aquifer, north-west of Dumfries.

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Hydrograph


Hydrograph

Show data from :-
1993 to 2013 1990s 2000s 2010s


Information about the well

Newbridge
Wellmaster ID NX97/2
NGR 2951 5788
Datum 15.7 maod
Monitoring details
Type Groundwater Level
Aquifer Permo Triassic Sandstone
Confinement Unconfined
Depth 28 m
Record
Monitored by SEPA
Records commence 1993
Records end Active

Hydrogeological setting

The well is located on Kilblane Sand and Gravel Formation underlain by Locharbriggs Sandstone Formation near its boundary with the Doweel Breccia Formation (both part of the Appleby Group of Permian age). The Locharbriggs Sandstone 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 be controlled, possibly by the river level as the borehole is about 210 m south of Cluden Water.

References

The Permian aquifer of Dumfries: groundwater chemistry and age.

Contact

Contact Andrew McKenzie for further information