K.C. Valley project

News –
- The groundwater level in parts of Kolar has risen significantly under the K.C. Valley project.
Koramangala-Challaghatta (KC) Valley project,
- Launched by – Karnataka government in 2018,
- Objective – It treats 440 million litres of sewage daily from Bengaluru and transports it through pipelines to refill 122+ dried lakes in the drought-prone Kolar and Chikkaballapur districts.
- Significance – By 2026, it increased groundwater levels by 50-100 ft in Kolar.
Key Details of the KC Valley Project:
- Goal: To mitigate water scarcity in rural districts while addressing sewage treatment for Bengaluru.
- Process: Secondary-treated wastewater is piped to local tanks, where natural soil filtration acts as a tertiary treatment to replenish groundwater.
- Project Cost: Estimated at over ₹6,000 crore, funded partially by a World Bank loan and a matching central government contribution.
- Recharged Regions: Primarily benefits rural areas in Kolar and Chikkaballapur.
Benefits and Impact:
- Groundwater Recharge: Significant rise in water tables within the targeted districts.
- Agricultural Support: Farmers are accessing the replenished water for irrigation.
- Environmental Rehabilitation: Aims to revive ecosystems in previously dried-out tanks.









