World Water Day: The invisible threat of groundwater flooding

Via the Living with Water partnership

This World Water Day, the Living with Water partnership is raising awareness of groundwater flooding, which is much less well-known than other types of flooding, such as surface water, or river and tidal flooding.

Flooding from groundwater can happen when the level of water within the rock or soil underground – known as the water table – rises.

When the water table rises and reaches ground level, water starts to seep through to the surface and flooding can happen. This means that water may rise up through floors or underground rooms such as cellars or basements.

Human activities over-use and pollute groundwater in many places. What we do on the surface matters underground.  Groundwater needs to be used sustainably. (Picture: UN-Water/World Water Day)

Many people won’t realise the impact groundwater levels can have during times of rainfall, as not only is groundwater mostly not visible, as it beneath our feet, but groundwater flooding is also much slower to occur than river flooding – it will usually happen days, weeks or even months after heavy or prolonged rainfall, while it may last weeks or even months.

A handy tool is available to check the groundwater levels where you are. By using the flood check tool developed by the Government, you can see the latest flood warnings where you are, as well as the current river, sea, groundwater and rainfall levels in your area. Click here to take a look.

If you’re concerned about groundwater flooding at your home or business, the most effective way to keep groundwater out of your property is to use a drainage or pump system to divert the water away. For more information, click here.

World Water Day celebrates water and raises awareness of the 2 billion people living without access to safe water. It is about taking action to tackle the global water crisis. This year’s theme is groundwater.

Litter in Hull