Rain delays need for drought permits but raises flash flood risk

A wet week across England has delayed the need for water companies to seek drought permits but reservoirs and groundwater remain low, according to the Environment Agency.

Four reservoirs and 14 groundwater sites are exceptionally low for the time of year despite the heavy rainfall, the agency said in its latest update.

Meanwhile, there are warnings that drought-stricken areas could be susceptible to flash flooding, as water runs quickly off dry ground rather than soaking in.

Polly Chancellor, national drought co-ordinator, said: “At the moment most of the rain is not reaching down far enough to top up groundwater, which is what we really need to make a difference to the drought.”

In spring and summer, most rainfall evaporates off or is absorbed by trees and plants and has little impact on water stocks available for public supply.

Environmental NGO Waterwise said it would take 50 days of rain to make the soil wet enough to start replenishing underground sources.

Managing director Jacob Tompkins warned that climate change made the scenario of simultaneous drought and flooding more likely.

He added: “The current situation highlights the need to take a longer term view of water management – especially the need to promote wise water usage all year round.

“The hosepipe bans are here to stay for the foreseeable future so enjoy the rain while it lasts and let it fill your water butt and soak your garden.”

Water use advisers have reported a surge of interest in boreholes, rainwater harvesting and greywater recycling, while garden centres are selling out of water butts.

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