Official Statistics

Hampshire: groundwater situation

The latest update on monitored groundwater levels and whether there are any groundwater alerts or warnings in force.


Groundwater situation: Hampshire 9 May 2018

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


This document provides information on the groundwater situation for Hampshire.

Flooding from groundwater can happen when the level of water within the rock or soil that makes up the land surface (known as the water table) rises. The level of the water table changes with the seasons due to variations in long term rainfall and water abstraction. When the water table rises and reaches ground level, water starts to emerge on the surface and flooding can happen.

Lead local flood authorities (the unitary or county council) are responsible for managing the risk of flooding from groundwater. They set out how they plan to do this in their local flood risk management strategies.

The Environment Agency has a strategic overview for all sources of flooding including groundwater. This means they will provide support to other risk management authorities. They supply information in the form of monitored groundwater levels. In some areas that have historically experienced groundwater flooding, the Environment Agency provide a groundwater alert or warning service.

Published 18 November 2014
Last updated 10 May 2018 + show all updates
  1. New data added 10/05/18
  2. New data added 27/04/18
  3. Updates made to data 23 March 2016.
  4. New data added 23 February 2016.
  5. New data added 8 February 2016.
  6. New data added for Hampshire groundwater 7 January 2016
  7. Updated 20 March 2015
  8. New data added on 17 February 2015
  9. New data updated on 30 January 2015
  10. Added new report.
  11. New data added.
  12. First published.