Abstract
Aquifer parameters from geophysical well logs and pumping tests were used to evaluate the potential of fractured aquifer of khondalitic terrain of Northern parts of Eastern Ghats of India. The parameters under consideration are porosity and formation-water resistivity for the highly weathered material and the fractured khondalitic aquifer. The resistivity of fractured zones ranged between 28 and 30 Ω m. The aquifer porosity varied from 28% in the fractured khondalitic aquifer to 18% for the kaolinized formation. Pumping tests revealed the aquifer transmissivity and storativity in the range of 26–230 m2/day and 1.9 $$\times$$ 10–4–87.5 $$\times$$ 10–4 respectively. High values of transmissivity and storativity were obtained from the flat uplands, whereas low values characterized the low laying areas. The aquifer parameters have to unravelled the hydrogeological characteristics of the khondalitic terrain.
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