Catchment Area: 50 ha Rain(Jun-Sept):1140 mm=1.14 m WHT size: 4m deep X 1/10th of catchment area 1irrig(5cm)= 500 M3 512/500= 10 Irrign Collection from 1 ha 11400 M3 Even if 50% of the 80% Harvestable 9120M3 Potential is stored Losses (-) 4000 M3 Effective storage 5120 M3 At least 5 Irrigns
Other Harvesting structures 5% model( for a field of size 100ftX100ft the cost for the model would be between 5000 to 6000) Earthen bund Shallow tube wells(in areas having high ground water table) Check dam with pipe flow irrigation and or pedal
Diversion channelPerennial source of spring water RPVC pipe laid underground
Irrigation channelDiverting stream water for providing irrigation to dry land area. Excess runoff passes through the natural drainage.
Surface water harvested for Ground water recharge and extraction method Costing Rs 80,000
Government programmes …. These structures could be built under the MGNREGS Cost provisions for 10ft dia wells is more than 1 lakh RKVY Support for check dam, small irrigation structuresIWMPThe trust through it DBI programme has also helped in assuring irrigation in many area