The UK is heading into summer with a growing threat of drought, as river flows across the country hit exceptionally low levels.

Scientists at the UK Centre for Ecology and Hydrology (UKCEH) warn that dry and warm weather over the next three months could push water resources to a critical point.

River flows in nearly every catchment area are already below average, with some recording the lowest levels since 1958. If the dry spell continues, the situation could lead to widespread water shortages, fish deaths, and more sewage spills in already stressed rivers.

The last time England built a reservoir was over 30 years ago, leaving it poorly prepared for prolonged dry weather. Some regions just saw their driest spring on record. Without significant rainfall—on the scale of the 2012 floods—hosepipe bans and broader water rationing are likely.

Thames Water boss Chris Weston said restrictions are not off the table. Meanwhile, River Action CEO James Wallace placed blame on poor regulation and corporate mismanagement, saying:

“Our reservoirs are running dry and our rivers are polluted with sewage. Yet again, the public will bear the costs of a failing water industry.”

As farmers and water companies continue drawing from rivers, experts warn the situation could rapidly deteriorate. The UKCEH expects river flows to remain low to exceptionally low through July.

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