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Cauvery water supply project being undertaken by BWSSB

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Water

Dear All

We have been hearing and reading in the newspapers that the government has under taken water supply project and some of the tenders for the construction of water treatment plants and pumping stations have been awarded.

As citizens,are we not supposed to know the following:

  1. Type of technology being used for water treatment
  2. is it proven or new technology
  3. what is the cost of the project?is it under the budget which was planned earlier?if not,how much tax payers money is being spent?
  4. we read in  papers that due to power problem at treatment plant,BWSSB was unable to pump water to bangalore.Have these been considered in the new treatment plant being constructed to avoid the same mistakes of the past?
  5. On the pumping stations,BWSSB is going ahead with 3-4 number of pumping stations under the above mentioned project.What is the capacity of the pumps.are the pumps proven.we do not want to hear from BWSSB that due to pump failure,the city will not get water.Also the minister in-charge says that they would like to have a seperate power source for  the pumping stations.why can it not be done now.atleast have some backup power for some pumps atleast to ensure minimum watersupplyu to bangalore.

Lot seems to be happening with the projects but the citizens of this city are in dark as to what exactly is being done with the tax payers money.

Can anyone come up with some answers or contact BWSSB to answer?

Comments

citizenof bangalore's picture

Any update?

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Any updates on the above subject from the forum members?  this should be one of issues which we should follow up on a regular basis.

 

 

Sanjeev's picture

Panel suggests drawing water for Bangalore from Linganamakki

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An expert committee set up by the State government has recommended drawing of water from the Linganamakki reservoir in Shimoga district to tackle the drinking water needs of Bangalore city.

In its report submitted to the government recently, the 10-member expert committee headed by B.N. Thyagaraja, former chairman, Bangalore Water Supply and Sewerage Board, recommended drawing of 30 tmcft water during 2021-51 from the Linganamakki reservoir, built across the Sharavathi in 1964.

The hydro power generating units at the reservoir has an installed capacity of 1,330 MW. In the first decade (2021-31), the estimated cost of drawing 10 tmcft of water from the reservoir would cost Rs 12,500 crore. The Lingamakki reservoir was most suitable for meeting the drinking water needs of Bangalore as its water was unpolluted, the panel observed.

The committee said if the reservoir is delinked from power generation even partially, the drinking water supply needs of not only Bangalore but also other towns in the districts of Kolar, Chickballapur, Bangalore Rural, Ramanagaram, Tumkur and Chitradurga could be fully met.

The reservoir, which has a storage capacity of 151 tmcft, was built only for the purpose of hydro electricity generation. The panel recommended withdrawal of 60 tmcft of water, which would amount to only 40 per cent of the total reservoir capacity. The remaining water could be used for power generation.

It said that if the government undertook a policy decision to partly convert the power generating reservoir for drinking water supply, the entire needs of Bangalore up to 2051 could be met by the reservoir alone.

There would be reduction in power generation but power could be generated from other alternative sources to meet the demand. Only pipelines have to be laid with a pumping station at Linganamakki, the panel said.

The panel estimated that the Bangalore city’s population would reach 1.42 crore and 3.45 crore by 2021 and 2051 respectively, while the demand for drinking water would touch 36.4 tmcft and 88.25 tmcft respectively during the same period. At present 18.8 tmcft of water was being drawn to the city and the shortfall would be 17.6 tmcft in 2021 and 69.45 tmcft by 2051, it said.

Other major recommendations included steps for reduction in unaccounted water supply in the city, revival of flow of water in the Arkavathi, rejuvenation of tanks and adoption of rainwater harvesting to recharge groundwater, laying separate pipelines for potable and non-potable water and drawing of water on short and long term basis from the Cauvery.

http://www.thehindu.com/news/national/karnataka/panel-suggests-drawing-water-for-bangalore-from-linganamakki/article5934605.ece

With Bangalore 920 Meters ( 3020 ) above sea level and Linganamakki dam dam's height is 1,819 feet (554 m) above sea
level.

That means,  water need to be pumped to 1100 feet  and by reducing electricity generation of 40%.  That means ,  we will be using 80% power to pump water as 40% lost and another 40% to pump water.

When I was talking to my friend on how much water pumped to Bangalore ie 900 MLD, where it goes end of the every day and added to that we want another 60MLD to flow from Sharavati to this drain Mysore road.  Finally where this drain on Mysore road gets terminated ???

One looks at Mysore road,  most of it goes into drains.  Even  drain which come thru' Bangalore University,  we are not recycling this inside University campus which has huge land and also tress ca watered with this recycled water and ground can be recharged. Also MSc students at Bangalore University can take up their research project on Chemistry at the same time.

 

 

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