RECHARGE OF GROUNDWATER INITIATIVES
INTERVENTIONS: To utilize the excess flood water to the maximum extent within the minimum period
REMEDY: Introducing cutting-edge technology to design the pumps and pipes
INTERVENTIONS: To fix the alignment of the canal in the recharge zone to improve the sub-soil water table in the command area
REMEDY: Using soil zonation map and contour map with the help of experts from technical institutions
INTERVENTIONS: Linking of existing tanks located in the high-altitude
REMEDY: Introducing sub-pumping stations to lift water to high-altitude tanks
PROJECT COST RS.673.8835.00 CRORES.
The project area is about 7 km from Mettur Dam falls in over over-exploited zone.
Ground water table in bore wells at a depth of 300 meters and more.
Tanks located in the Sarabanga basin in Salem district are highly elevated in nature.
There is no other possibility except pumping to fill the dry tanks.
Even though Mettur Dam surpluses every 2 or 3 years or continuously, the tanks in Mettur, Omalur, Edapadi and Sangakiri Taluk do not fill to their original capacity.
Cultivation is severely affected – Only Dry crops are being cultivated instead of wet crops
Scarcity of Drinking water
Aims to lift the Excess flood water of Mettur reservoir (≈555 Mcft)
To improve Surface and groundwater potential in the over-exploited area of Sarabanga basin in Salem district.
The total ayacut stabilized in this scheme is assessed as 4062 acres and the anticipated additional food production will be 8441 Tonnes.
Improving Sarabanga basin tanks Ayacut in Salem district - 25% Gap ayacut to be stabilized
To sustain agricultural operations and to avoid migrants of agriculturists
82 dry tanks/ponds in 48 villages of Salem district benefitted.
Groundwater recharges in 4 taluks
Assured irrigation will stabilize an ayacut of 4062 acres & additional food production
Drinking water needs of 6 Lakh people through groundwater recharge
Development of small-scale industries through Groundwater recharge
Improvement in the socio-economic status of the people
The Project becomes a model for the transfer of flood surplus water to existing dry tanks for better availability of stabilization ayacuts.
Unique model to transfer excess flood water between the subbasins by the combination of pumping and gravity (inter-basin transfer)
Ground water table increased by about 30cm in an over-exploited area
The uniqueness of the Mettur lift irrigation scheme is to supply water through pumping for a head of 139m without any intermediate sub-pumping and further flow through open canals to feed lower-down tanks and ponds.
Specialized SCADA System for control
Unique model to transfer excess flood water by way of pumping and gravity network at higher level.
Assured irrigation for the existing dry tanks and ponds
