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:: Water Supply and Source



To meet the Growing needs of the city through new sources of water supply , State Government constituted an Expert Committee in the year 1958 to go into the problems thoroughly and to suggest such measures that ensure adequately reasonable supplies which included meeting the long term requirements  of  water  supply  and preparation of comprehensive schemes for providing such requirements.

The expert committee examined the
following sources:                                     

a)Further development of Arkavathi river downstream of T.G.Halli reservoir.

b)Hemavathy River.

c)Shimsha River.

d)Cauvery River

 

 

 
Keeping in view the long range requirements of the city and dependability of the supplies, the Committee recomended to consider tapping the perennial river Cauvery rather than any of the other three sources, This recommendation was accepted by the Government during April 1964 and adminstrative approval was accorded to the Cauvery Water Supply Scheme (CWSS) 1 st Stage Project. Work with an estimated cost of Rs.22 crores was started during 1969. Construction of this project was completed in about five years and the supply of Cauvery water to Bangalore commenced from 24th January 1974.
Again, commissioning of CWSS first stage did not quench the thirst of Bangaloreans, because of the continuous increasing in domestic and non-domestic demand for water. The Bangalore Water Supply and Sewerage Board took timely action to take up CWSS Second Stage. The work of CWSS Second stage project with an expenditure of Rs.65.50 crores was completed within a short span of three years (i.e 1979-1982) as some of the essential and important infrastructural components required for the second  stage project were already accommodated while executing the work pertaining to first stage project.

 
In view of the increasing population and to cope up with the needs of water supply for the people of Bangalore, the CWSS-lll Stage was taken up during 1985-86 at an estimated cost of Rs.240.00 crores to bring in an additional quantity of 270 MLD of Cauvery Water. The work of CWSS Stage-IlI was completed and commissioned during May 1993. The total potential created from Cauvery stages-I, II and Ill was 540 MLD.

Schematic representation of CWSS stage I, II, III

Chamaraja Sagar Reservoir (Thippagondanahalli)

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