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The Evaluation of Groundwater Pumping Capacity at a Catchment Area with Interrelated Wells in Volcanic Island: I. Without Consideration of Water Quality  

Lee, Sunhoon (Graduate School of Science and Technology, Chiba University)
Machida, Isao (Japan Science and Technology Corporation)
Imoto, Yukari (Graduate School of Science and Technology, Chiba University)
Publication Information
Journal of Environmental Impact Assessment / v.12, no.3, 2003 , pp. 189-198 More about this Journal
Abstract
The purpose of this paper is to evaluate the groundwater pumping capadty at a catchment area containing interrelated wells without considering their qualities by using numerical simulation in Miyake Island, young volcanic island with very complicated hydro-geological formations. The groundwater pumping capadties of each well and over entire study area were estimated as the IMY(i,t) by individual withdrawals and the SSMY(t) by simultaneous withdrawals. These results can be used to secure a sure source for taking a plan for supplying water use in young volcanic island as Miyake Island. In simultaneous withdrawals, the withdrawals from well no. 5 and 6 should have the roles as the barrier wells against the intrusion of the groundwater of the part adjacent to Tairo Pond into the inner part of study area. Therefore, it can be suggested to adopt the simultaneous withdrawals as the optimal approach of groundwater management for supplying water use with respect to quantity and quality.
Keywords
groundwater pumping capacity; interrelated wells; individual withdrawal; simuitaneous withdrawal; barrier well;
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