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UK reservoir levels

Latest published storage levels for 23 reservoirs and reservoir groups across England, directly reported by water companies and the Environment Agency.

  • Alton Water70.0% storage · observed 10 Aug 2026
  • Ardingly Reservoir55.7% storage · observed 9 Aug 2026
  • Ardleigh Water68.0% storage · observed 10 Aug 2026
  • Arlington Reservoir67.2% storage · observed 9 Aug 2026
  • Blagdon Lake53.0% storage · observed 11 Aug 2026
  • Bristol reservoir group59.0% storage · observed 11 Aug 2026
  • Carlisle59.0% storage · observed 9 Aug 2026
  • Chew Valley Lake65.0% storage · observed 11 Aug 2026
  • Clywedog Reservoir55.6% storage · observed 10 Aug 2026
  • Covenham Water89.5% storage · observed 10 Aug 2026
  • Dee & Vyrnwy Reservoirs66.5% storage · observed 9 Aug 2026
  • Derwent Valley reservoir group56.6% storage · observed 10 Aug 2026
  • Grafham Water72.6% storage · observed 10 Aug 2026
  • Hanningfield and Abberton combined storage61.0% storage · observed 11 Aug 2026
  • Haweswater & Thirlmere55.2% storage · observed 9 Aug 2026
  • Northumberland (including Kielder)78.0% storage · observed 9 Aug 2026
  • Pennine Sources54.6% storage · observed 9 Aug 2026
  • Pitsford Water69.7% storage · observed 10 Aug 2026
  • Regional Total60.2% storage · observed 9 Aug 2026
  • Rutland Water77.9% storage · observed 10 Aug 2026
  • Severn Trent regional reservoir total65.3% storage · observed 10 Aug 2026
  • Teesdale64.0% storage · observed 9 Aug 2026
  • Weardale60.0% storage · observed 9 Aug 2026
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AN INDEPENDENT SERVICE BYRAT SYSTEMSLondon · Est. 2026

Contains Environment Agency information © Environment Agency and/or database rights. Powered by Met Office data. Some local supply-area information is © water companies. Otter is independent and is not a water company or regulator.