• Ketki A. Jadhav

ABSTRACT In India, percolation tank are known to have the potential to serve as one of the important type of artificial recharge structure. Despite water harvesting measures supported on a massive scale, groundwater levels are declining. New programmes are being implemented to improve artificial percolation whilst the impact of former measures on groundwater recharge is still undefined. Downstream impact of upstream watershed development becomes a key question for future programmes. The present study focuses on integrated geological, geomorphological, hydrogeological and geophysical investigations were carried out at Wagholi and Nerpingalai percolation tanks in Amravati district Maharashtra. Geological studies indicated the usually the structure covers a single flow or sometimes spread over two flows. All the flows are simple AA flow and overlain by thin alluvium. The depth of weathering varies from 0.25 – 6.05m. Geomorphological studies have been done on 1:50,000 scale using Survey of India toposheets and linear, aerial and relief aspects have been determined for each basin and interpreted for their controls of percolation tank sites. About 7-15 dug well has been selected around each structure and monitored for studying hydrogeological condition and determining the effective area by groundwater fluctuations. At each structure three vertical electrical sounding with AB/2 = 35 m have been carried out and interpreted by IPI2WIN software for layers and their resistivity. The mean resistivity for first layer at each site has been determined on upstream and downstream side. Ultimately an attempt has been made to integrate the collected data to determine the efficiency of percolation tank in the Deccan trap. It was found that high weathered zone, high drainage density, high drainage frequency, low length of overland flow and high ground water fluctuation favored the feasibility of percolation tanks in Amravati district, Maharashtra.

percolation tanks, efficiency, Amravati

"Evaluating The Impact of Hydrogeological set up on Percolation Tanks in Wagholi and Nerpingalai , Amravati District, Maharashtra.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.563-571, April-2019, Available :http://www.jetir.org/papers/JETIR1904985.pdf

"Evaluating The Impact of Hydrogeological set up on Percolation Tanks in Wagholi and Nerpingalai , Amravati District, Maharashtra.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp563-571, April-2019, Available at : http://www.jetir.org/papers/JETIR1904985.pdf