The Bangalore Water Supply and Sewerage Board (BWSSB) is set to explore the feasibility of sourcing water for Bengaluru from the Hemavathi and Kabini rivers. Chairperson Manjula announced the initiative on Tuesday after reviewing the water levels at the Krishna Raja Sagar (KRS) reservoir, where concerns have been raised over weak monsoon rainfall this year.
Feasibility Study Initiated
Manjula directed officials to conduct a detailed study to assess the viability of drawing water from the Hemavathi and Kabini rivers, both of which are tributaries of the Cauvery. The study will evaluate infrastructure requirements, environmental impact, and cost implications. According to BWSSB sources, the move aims to diversify water sources for the city, which currently relies heavily on the Cauvery River.
KRS Reservoir Water Levels Under Scrutiny
During her review at the KRS reservoir in Mandya district, Manjula noted that the water level stood at 98 feet as of Tuesday, compared to the full reservoir level of 124 feet. This is significantly lower than the average of 112 feet recorded during the same period last year. The weak monsoon forecasts have heightened concerns about water availability for Bengaluru, which consumes approximately 1,450 million litres per day (MLD).
Manjula stated, "Given the uncertainty of monsoon rains, we must explore alternative sources to ensure uninterrupted water supply to Bengaluru. The Hemavathi and Kabini rivers present potential options, and we will assess their feasibility comprehensively."
Background and Context
Bengaluru has faced recurring water shortages, particularly during dry years. The city's water demand is expected to rise to 2,000 MLD by 2030. Currently, the Cauvery River supplies about 1,320 MLD, with the remaining demand met by groundwater and local lakes. However, overexploitation of groundwater has led to declining water tables. The BWSSB's exploration of the Hemavathi and Kabini rivers is part of a broader strategy to secure long-term water sustainability.
Next Steps
The feasibility study will be completed within three months, after which a detailed project report will be submitted to the state government. Manjula emphasized that the project would require inter-state coordination as the Hemavathi and Kabini rivers flow through Karnataka and Tamil Nadu. She also urged citizens to conserve water and reduce wastage.
