Water Supply Needs of Bangalore Can be Mitigated by Linganamakki Reservoir

Karnataka Government To Implement Krishna Water Disputes Tribunal II Award www.ambitionias.com
  • The State Govt has been recommended to draw water from the Linganamakki reservoir, built across Sharavathi River in Shimoga district, to tackle drinking water supply needs in Bangalore as its water is unpolluted.
  • This reservoir with a storage capacity of 151 tmcft was built for the purpose of hydro electricity generation alone and has an installed capacity of 1,330 MW. Even partial delinking of the reservoir from power generation will take care of drinking water supply needs of Bangalore, Kolar, Chickballapur, Bangalore Rural, Ramanagaram, Tumkur and Chitradurga
  • In the first decade (2021-31), the estimated cost of drawing 10 tmcft of water from the reservoir would cost Rs 12,500 crore. Withdrawal of 60 tmcft of water (40% of the total reservoir capacity) would suffice to meet the needs of Bangalore up to 2051 and the remaining water could be used for power generation.
  • Bangalore city’s population would reach 1.42 crore and 3.45 crore by 2021 and 2051 respectively, and lead to severe shortfall of drinking water.
  • Any reduction in power generation can be compensated by other alternative sources. Pipelines have to be laid with a pumping station at Linganamakki.
  • Steps must be taken to, reduce unaccounted water supply, revive flow of water in Arkavathi, rejuvenate tanks, incorporate rainwater harvesting, lay separate pipelines for potable and non-potable water, and draw water on short and long term basis from the Cauvery.
  • Read at: http://www.thehindu.com/todays-paper/tp-national/tp-karnataka/panel-suggests-drawing-water-for-bangalore-from-linganamakki/article5935560.ece

Exams Perspective:

  1. Hydro Electric Projects (HEP)
  2. Rainwater Harvesting
  3. Potable water
  4. Electricity Generation in India