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논문 기본 정보

자료유형
학술대회자료
저자정보
Cho, Byong-Wook (Korea Institute of geology, mining and materials, Earth environmental division) Sung, Ig-Hwan (Korea Institute of geology, mining and materials, Earth environmental division) Choo, Chang-O (Korea Institute of geology, mining and materials, Earth environmental division) Lee, Byeong-Dae (Korea Institute of geology, mining and materials, Earth environmental division) Kim, Tong-Kwon (Korea Institute of geology, mining and materials, Earth environmental division) Lee, In-Ho (Korea Institute of geology, mining and materials, Earth environmental division)
저널정보
한국지하수토양환경학회 한국지하수토양환경학회 심포지엄 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
발행연도
1998.1
수록면
119 - 122 (4page)

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Chemical analysis, measurement of pumping rates of 60 production wells and depth to water tables of 57 monitoring wells were carried to protect depletion of water resources and deterioration of water quality for the commercial portable ground-water. Borehole depth of production well averages 149m(31 boreholes), casing depth is 28m(29 boreholes), production rate is 70 $m^3$/day and depth to water table of monitoring well is 23.26m, respectively. The geology of 60 wells can be divided into Daebo granite(20), Okchun metarmorphic complex(18), Precambrian granitic gneiss(15), Bulguksa granite(4), Cheju volcanics(2), Cretaceous sedimentary rock(1). Average electrical conductivity and pH are 152$\mu$S/cm, and 7.35, respectively. The contents of major cation and anion predominantly $Ca^{2+}$>N $a^{+}$>M $g^{2+}$> $K^{+}$ and HC $O_{3}$$^{-}$ >S $O_{4}$$^{2-}$>Cl ̄>F ̄. Water type is predominantly $Ca^{2+}$-HC $O_{3}$$^{-}$(81.7%). It's possible that water chemistry of some wells were affected not only by the geology of boreholes penetrated but by inflows of surface water or shallow ground-water. Therefore, it is strongly necessary to steadily monitor the water quality and hydrogeologic conditins of production wells.ells.ls.ells.

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