BENGALURU: Courtesy a robust monsoon, the Thippagondanahalli (TG Halli) Reservoir, located 35km west of Bengaluru, is brimming with 2.5tmcft of water, and Bangalore Water Supply and Sewerage Board (BWSSB) will start supplying water from the reservoir soon.
“Water quality tests are being conducted and once the reports come in, around 50-60MLD will be supplied to parts of west and north Bengaluru. The installed capacity and infrastructure is to supply 110MLD, but this is subject to water availability,” said a senior BWSSB official, who did not wish to be named.
The storage capacity of the reservoir is 3.325 tmcft, and on June 1, the water level was 1.8tmcft. “All the pipes have been cleaned and where required, new pipes have been laid. New machinery and a 20MLD sewage treatment plant have been installed at a cost of Rs 260 crore, in preparation for the Yettinaholle project, but we cannot wait till it starts. A special ozonisation water treatment plant has been set up to ensure optimum water quality, and supply will start soon to ensure water in the reservoir des not go waste and the machinery does not rust,” the official added.
Water supply from the reservoir was completely stopped in 2012, when Cauvery 4th Stage project was fully commissioned. But as Bengaluru has grown and water demand has increased, BWSSB officials have calculated that this water and 775MLD supply from Cauvery 5th Phase will complement the existing supply. “We plan to started water supply to 110 villages under Cauvery 5th Stage from September 5. By then, TG Halli water supply can also start. Trials for supplying water from TG Halli have been completed till Hegganahalli tank in west Bengaluru,” the official said.
When some of the 110 villages were reeling under water crises, BWSSB was contemplating supplying water from TG Halli. Plans were also drawn up to fill tankers from TG Halli and ferry water. “But we were worried whether people would accept it, as many believe that only Cauvery water is potable. That is not true, till Cauvery water supply started, Bengaluru was using water from TG Halli. We want to revive this,” the official added.