water demand

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Why is water demand increasing in the UK?

  • population increase - 2008 = 61.4 million, over 80 million by 2050 = more houses
  • water use per household increases
  • more industry
  • increased wealth - more water using appliances, 66% of houses had a washing machine in 1972, 2010 = 94%
  • temperature increase - global warming, water shortages, drought
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How is water demand met in the UK?

  • reservoirs - Keilder
  • rivers - Dee
  • aquifers - under London
  • springs
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What is water defecit?

where an area uses more water than it has available

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What is water surplus?

where an area has more water available than it uses

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Why is Lake Vyrnwy suitable for dam building?

  • mountainous area - more rivers, more oppourtunities to supply dams and reservoirs
  • low population - less people displaced, more places to choose from
  • likely to recieve more rain - provides more water
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Economic impacts of Lake Vyrnwy

  • cafes,  RSPB shops, gift shops, tourist information centre - booklets and panflets
  • sailing and fishing on the lake - many regular tourists
  • 2 chapels, 3 inns, 37 houses were lost under the construction
  • village is a great position for tourists - thousands visit every year
  • new village was built by the Liverpool Corporation to replace the one that was to be flooded
  • very expensive (also pipelines and transport)
  • £60 million in todays money
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environmental impacts of Lake Vyrnwy

  • wildlife now use the reservoir as their new habitat
  • surrounding area has become a SSSI, National Nature Reserve, Special Protection Area, Special Area of Conservation
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Social impacts of Lake Vyrnwy

  • 2 chapels, 3 inns, 10 farmhouses and 37 houses were lost under the flooding
  • village of Llanwyddyn was lost in the flooding
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