Residents on Bangalore outskirts upbeat as water woes come to an end

BWSSB confident of reaching its target of 2 lakh connections

Come next week, water woes will be a thing of the past for the residents of the City’s newly-added areas. Water will start flowing in their taps as part of the Cauvery IV stage II phase project.

Although only 10,000 consumers have sought connections, BWSSB is confident that they will be able to reach their target of two lakh connections. One of the areas which will receive water is Ramamurthynagar in KR Puram, which faces acute water crisis, especially in summer.

“BWSSB has promised supply by next week, but we will be sure only when water flows in our taps. A few residents are facing problems due to plumbers, in getting the connections. But, we want water to flow as soon as possible,” said Anjanappa, a member of the Ramamurthynagar Residents’ Welfare Association.

The water is drawn from River Cauvery at Shiva anicut and channelled through a two-km-long open canal to Shiva Balancing Reservoir (SBR). From SBR, water is channelled to the water treatment plant at Thorekadanahalli (TK Halli) through a 700-metre canal and a gravity pipeline (three metre in diameter and 6.3 km in length) up to Netkal Balancing Reservoir (NBR).

From there, water flows through a steel pipeline (2.6 metre in diameter and 9.8 km in length).

The raw water is treated at TK Halli plant which has a capacity of 500 mld, through Dissolved Air Flotation method, followed by Rapid Sand Gravity filtration method. The plant is one of the biggest of its kind in Asia.

The treated water is then pumped to the City through pipes (Trans main), which are 2.7 metre in diameter and 70 km in length. The pumping stations are at TK Halli, Harohalli and Tataguni, each with 10 pumps (six working and four standby) of 3,100 HP capacity each.

The pipes branch into two—east and west at Vajarahalli before entering Bangalore. One bunch of pipelines carries water to reservoirs in east and north areas of Bangalore. The other channels water to reservoirs in west and north areas.

The total length of the steel trunk main in the City is 84 km with pipe diameter varying from 600 mm to 2.2 metre. The water trunk mains feed water to seven Ground Level Reservoirs (GLRs) of total capacity 152 million litres per day constructed at Jamboo Savari Dinne, Kudlu, Uttarahalli, GKVK, OMBR, Hoodi and Narayanapura and also existing reservoir at Hegganahalli.

Beneficiaries

This project will mainly benefit residents of the erstwhile Byatarayanapura, Yelahanka, Bommannahalli, Mahadevapura, K R Puram and Rajarajeshwarinagar CMCs and Kengeri TMC areas.