Chaulya, S.K. and Chakraborty, M. K. and Ahmad, Mobin and Singh, K.K.K. and Singh, R.S. and Tewary, B. K. and Gupta, P.K. (2000) Water resource accounting for an iron-ore mining area in India. Environmental Geology, 39 (10). pp. 1155-1162. ISSN 0943-0105

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A study has been conducted at the bicholim iron-ore mine, North Goa, India to investigate the hydrogeological continuity between the mine’s open pit and surrounding villages. Water resource accounting by demarcating different watersheds has also been carried out to analyse the major causes of groundwater scarcity in the region during dry periods. A resistivity survey and a ground penetrating radar survey were completed around the periphery of open pits, the results of the two independent surveys and other related data confirm that there is no observable hydrogeological continuity between the pits, nearby villages and Mayem Lake. Hence, there may not be any significant effect on surrounding water resources due to mining or mine dewatering. Water resource accounting has revealed that only 15-20% of 3500 mm precipitation per annum becomes part of the groundwater resource. The remainder of the annual precipitation is lost as heavy runoff, evapo-transpiration and subsurface capillary moisture. Closely spaced wells in the region have also aggravated the groundwater scarcity problem due to draw down effects. Therefore, an effective water resource conservation plan is required for the region to overcome the problem.

Item Type: Article
Uncontrolled Keywords: Iron-ore mine, Resistivity survey, Ground penetrating radar survey, Hydrogeology, Watershed, Water resource accounting
Subjects: Envieronmental Management Group
Depositing User: Dr. Satyendra Kumar Singh
Date Deposited: 23 Dec 2011 12:05
Last Modified: 23 Dec 2011 12:05

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