Water is being supplied to Karachi from c considerably distant locate water source through bulk conveyance system comprising of a complex network of canals, conduits, siphons, multi-stage pumping and filtration.
KARACHI WATER SUPPLY HISTORIC FACTS:
Ø The quota of 450 cusecs (242 MGD 1089ml/day for Ruby season) and 520 cusecs (280 MDG 1260ml/day for Kharif season) form Indus reiver was sanctioned on May 11, 1957.
Ø In 1988, the same quota was increased to 1200 cusecs (2880 ml/day) by Presidentail decree, which has been exhausted in 2006 with implementation of K-III Project.
WATER SUPPLY SCENARIO:
Ø The present supply to Karachi from Indus and Hub source is approx 650MGD (2925 ml/day).
Ø The per capita water demand @ 54 GPCD for population 20 Million is estimated as 1080 MDG.
Ø The current short fall is anticipated as 430 MGD.
Ø First Phase of K-IV Project may take up to 5 years to complete i.e. by the year 2015.
Ø By the year 2015, projected population of Karachi will be 23 Million and @ 54 gallons per capita per day, the demand of water shall be 1242 MGD.
Ø By the year 2015 there will be a short fall of 600 MGD (2700 ml/day) water.
Ø 100 MGD (450 ml/day) additional water is required after every 5 years to bridge the gap of demand and supply.