The Bangalore Water Supply and Sewerage Board (BWSSB) will launch the work of laying underground drains in the 110 villages on the outskirts of the city shortly.
The board has already begun work on laying water pipes in these areas which are deprived of Cauvery water.
Technical bids for the project were opened on Monday and the board has found eligible bidders.
Chief engineer, project zone, K R Manjunath said the tender conditions were very stringent, demanding that the bidder has experience in working in other cities. Not many bidders had applied initially.
The Cabinet has approved the Rs 850-crore project, where pipelines running up to 2,000 km will be laid and linked to sewage treatment plants.
The project is crucial since the 110 villages house several apartments which lack basic sewerage systems and let out untreated sewage into lakes.
Manjunath said the underground sewage network will play a key role in curbing pollution of lakes.
Though the board will set up STPs, many of the apartments will have to install their own STPs to treat waste water, he added. Work will be taken up at Rajarajeshwarinagar, Dasarahalli, Mahadevapura, Byatarayanapura and Bommanahalli constituencies.
Though most of the areas in the 110 villages were erstwhile gram panchyats which had laid underground drains, at many places, the drains lead to nearby lakes, leading to pollution.
Sushanth Kumar, an apartment dweller near Konankunte said he has been desperately waiting for BWSSB to take up both water and sanitary work at the earliest. “The areas have developed well in terms of connectivity, but it is unfortunate that we do not have basic amenities like water and sanitary connections. Many independent houses have their own soak pits and some of them have panchyat-laid underground drains which get blocked frequently and lead to lakes,” he added.
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