Serving parts of North West London and the Home Counties.


Our Water Resources

Wet spring helps groundwater continue recovery

 Last Update: 19 June 2018


Current levels: Near normal

Although rainfall in May was slightly below the long-term average, the wet start to spring has helped groundwater levels recover and it is unlikely that restrictions will be needed this year.

During the summer, most rainfall is used up by trees and plants for growth or is lost to evaporation, which makes any further recovery in groundwater levels unlikely until the start of the next recharge period in autumn.

Hot weather can significantly affect the demand for water and the amount we need to put into supply so high demand for water over the summer also affects groundwater levels and we may see groundwater levels fall more quickly.

It is therefore imperative that we all continue to do more to save water – this will reduce the risk of needing restrictions in the future. We have included some tips below on how to stay cool in the summer whilst saving water.

Please continue to urge your friends, family, work colleagues and community to use water wisely. If we all save a little, we all save a lot.


Keeping cool and saving water

  • Keep a jug of water in the fridge to provide cool water rather than running the tap

  • Air your clothes and get another wear out of them, this will save you time and energy on washing too

  • Water the garden in the early morning or evening when it’s cooler and there is less chance of the water evaporating

  • Water pistols or soakers are a good way for children to have fun and keep cool

  • Paddling pools can use up to 1,000 litres of water, so to keep kids entertained and cool in hot weather whilst using less water, try paddling pool play dates – inviting their friends to share the same paddling pool. You can also use the water on plants afterwards!

We have more useful tips to save water and FREE water saving devices here >>


Rainfall and groundwater levels

Groundwater levels Infographic



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