Clanville Lodge Gate

Location of Clanville Lodge Gate

This well is used to measure the water level in the unconfined Chalk aquifer north-west of Andover, Hampshire.

Our enquiries service can help you to access groundwater level data for this well.


We receive the data for this site on an annual basis, in April.


Show data from :-

1996 to 2015 1990s 2000s 2010s

Information about the well

Clanville Lodge Gate
Wellmaster ID SU34/8D
NGR 4322 1490
Datum 101.55 m AOD
Monitoring details
Type Groundwater Level
Aquifer Chalk Group
Confinement Unconfined
Depth 45.2 m
Monitored by EA South East
Records commence 1996
Records end Active

Hydrogeological setting

The borehole penetrates the Seaford Chalk Formation and the underlying Lewes Nodular Chalk Formation.

Geological map of the area around Clanville Lodge Gate (click for key)

The site is located on the side of a small east-north-east trending dry valley just above where it joins the main dry valley. The ephemeral head of the River Anton is in Penton Grafton (SU 329 472), 2 km to the south-south-east at an elevation of about 73 m above OD. This is similar to the minimum water level (73.6 m AOD) recorded in the borehole.

Well or borehole construction

The diameter of the borehole is unknown. There is probably some casing in the top of the borehole.

This site replaced a 35 m deep well and borehole nearby (SU 3215 4875) in 1976, this is located within a dry valley at a 9.62 m lower elevation.

Hydrograph response

The Chalk is unconfined and the hydrograph has an annual sinusoidal appearance with additional peaks in some years.

Topographic map with hillshade of the area around Clanville Lodge Gate


Contact Andrew McKenzie for further information