City will face severe water shortage
The water demand- supply gap in Bangalore city is expected to almost double by 2026, says a McKinsey study. Analyzing statistics from the Bangalore Water supply and sewage board (BWSSB) the international consultancy firm estimates that the overall water supply-demand gap would jump from 750 million liters a day (Mld) in 2014 to 1300 mld in 2026.
While the city consumes 1700-1800 mld of water at present, 800 mld of this is ground water.The study found that ground water was over-exploited and dangerously contaminated with sewage and other effluents. Only 30 percent of the city has portable groundwater,the study said.
The shortfall of only drinking water which has hovered around 25 per cent for the last two decades will go up to 36 percent, the study said adding that projected drinking water supply by the civic agencies in 2026 would be 1058 mld while the demand would cross 1644 mld.