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http://dx.doi.org/10.9719/EEG.2020.53.5.619

Characterization of Groundwater Level and Water Quality by Classification of Aquifer Types in South Korea  

Lee, Jae Min (Groundwater Research Center, Korea Institute of Geoscience and Mineral Resources (KIGAM))
Ko, Kyung-Seok (Groundwater Research Center, Korea Institute of Geoscience and Mineral Resources (KIGAM))
Woo, Nam C. (Department of Earth System Sciences, Yonsei University)
Publication Information
Economic and Environmental Geology / v.53, no.5, 2020 , pp. 619-629 More about this Journal
Abstract
The National Groundwater Monitoring Network (NGMN) in South Korea has been implemented in alluvial/ bedrock aquifers for efficient management of groundwater resources. In this study, aquifer types were reclassified with unconfined and confined aquifers based on water-level fluctuation and water quality characteristics. Principal component analysis (PCA) of water-level data from paired monitoring wells of alluvial/bedrock aquifers results in the principal components of both aquifers showing similar water-level fluctuation pattern. There was no significant difference in the rate of water-level rises responding to precipitations and in the NO3-N concentrations between the alluvial and bedrock aquifers. In contrast, in the results classified with the hydrogeological type, the principal components of water level were different between unconfined and confined conditions. The water-level rises to precipitation events were estimated to be 4.6 (R2=0.8) in the unconfined and 2.1 (R2=0.4) in the confined aquifers, respectively, indicating less impact of precipitation recharge to the confined aquifer. The confined aquifers have the average NO3-N concentration below 3 mg/L, implying the natural background level protected from the sources at surface. In summary, reclassification of aquifers into hydrogeological types clearly shows the differences between unconfined and confined aquifers in the water-level fluctuation pattern and NO3-N concentrations. The hydrogeologic condition of aquifer could improve groundwater resource management by providing critical information on groundwater quantity through recharge estimation and quality for protection from potential contamination sources.
Keywords
groundwater; hydrogeological aquifer type; principal component analysis; national groundwater monitoring network; resource management;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 MLTM (Ministry of Land, Transport and Maritime Affairs) and K-water (2011) National Groundwater Monitoring Network in Korea Annual Report 2011. MLTM and K-water, Deajeon, Korea, 650p.
2 MOLIT (Ministry of Land, Infrastructure and Transport) and K-water (2017) National Groundwater Monitoring Network in Korea Annual Report 2017. MOLIT and K-water, Daejeon, Korea, 792p.
3 Nimmo, J.R., Horowitz, C. and Mitchell, L. (2015) Discretestorm water-table fluctuation method to estimate episodic recharge. Groundwater, v.53, p.282-292.   DOI
4 Zhang, J., Wang, W., Wang, X., Yin, L., Zhu, L., Sun, F., Dong, J., Xie, Y., Robinson, N.I. and Love, A.J. (2019) Seasonal variation in the precipitation recharge coecient for the Ordos Plateau, Northwest China. Hydrogeol. J., v.27, p.801-813.   DOI
5 Labrecque, G., Chesnaux, R. and Boucher, M.A. (2020) Water-table fluctuation method for assessing aquifer recharge: Application to Canadian aquifers and comparison with other methods. Hydrogeol. J., v.28, p.521-533.   DOI
6 Park, E. and Parker, J.C. (2008) A simple model for water table fluctuations in response to precipitation. J. Hydrol., v.356, p.344-349.   DOI
7 Park, Y.-C., Jo, Y.-J. and Lee, J.-Y. (2011) Trends of groundwater data from the Korean National Groundwater Monitoring Stations: indication of any change? Geosci. J., v.15, p.105-114.   DOI
8 Rahi, K.A. and Halihan, T. (2013) Identifying Aquifer Type in Fractured Rock Aquifers using Harmonic Analysis. Groundwater, v.51, p.76-82.   DOI
9 Shi, Z., Wang, G., Manga, M. and Wang, C.-Y. (2015) Continental-scale water-level response to a large earthquake. Geofluids, v.15, p.310-320.   DOI
10 Su, G.W., Jasperse, J., Seymour, D., Constantz, J. and Zhou, Q. (2007) Analysis of pumping-induced unsaturated regions beneath a perennial river. Water Resour. Res., v.42, W08421. doi.org/10.1029/2006WR005389.   DOI
11 Thosmas, B.F., Behrangi, A. and Famiglietti, J.S. (2016) Precipitation Intensity Effects on Groundwater Recharge in the Southwestern United States. Water, 8, 90; doi:10.3390/w8030090.   DOI
12 U.S. Environmental Protection Agency (US EPA) (2008) EPA's 2008 Report on the Environment. National Center for Environmental Assessment, Washington, DC, USA; EPA/600/R-07/045F.
13 Yan, R., Wang, G., Ma, Y., Shi, Z. and Song, J. (2020) Local groundwater and tidal changes induced by large earthquakes in the Taiyuan Basin, North China from well monitoring. J. Hydrol., v.582, 124479.   DOI
14 Singleton, M.J., Esser, B.K., Moran, J.E., Hudson, G.B., McNab, W.W. and Harter, T. (2007) Saturated Zone Denitrification: Potential for Natural Attenuation of nitrate Contamination in Shallow Groundwater Under Dairy Operations. Environ. Sci. Technol., v.41(3), 759-765.   DOI
15 MOLIT (Ministry of Land, Infrastructure and Transport) (2017) Report on the national basic groundwater management plan (2017-2026).
16 Moon, S.K., Woo, N.C. and Lee, K.S. (2004) Statistical analysis of hydrographs and watertable fluctuation to estimate groundwater recharge. J. Hydrol., v.292, p.198-209.   DOI
17 Choi, B.-Y., Yun, S.-T., Kim, K.-H., Kim, J.-W., Kim, H.M. and Koh, Y.-K. (2014) Hydrogeochemical interpretation of South Korean groundwater monitoring data using Self-Organizing Maps. J. Geochem. Explor., v.137, p.73-84.   DOI
18 Atkinson, A.P., Cartwright, I., Gilfedder, B.S., Cendon, D.I., Unland, N.P. and Hofmann, H. (2014) Using $^{14}C$ and $^{3}H$ to understand groundwater flow and recharge in an aquifer window. Hydrol. Earth Syst. Sci., v.18, p.4951-4964.   DOI
19 Byun, J.Y., Kim, Y.S. and Koo, M.H. (2004) Geochemical Characteristics of Alluvial and Bedrock Groundwater in National Monitoring Wells. Report of Science Education, v.35, p.253-270.
20 Bredehoeft, J.D. (1967) Response of well-aquifer systems to earth tides. J. Geophys. Res., v.72(12), p.3075-3087.   DOI
21 Chung, I.-M., Kim, N.W. and Lee, J. (2007) Estimation of Groundwater Recharge by Considering Runoff Process and Groundwater Level Variation in Watershed. J. Soil Groundw. Environ., v.12(5), p.19-32.
22 Dragon, K. (2013) Groundwater nitrate pollution in the recharge zone of a regional Quaternary flow system (Wielkopolska region, Poland). Environ. Earth Sci., v.68(7), p.2099-2109.   DOI
23 Fetter, C.W. (2000) Applied Hydrogeology (4th Ed). Prentice Hall.
24 Freeze, R.A. and Cherry, J.A. (1979) Groundwater. Prentice Hall, Upper Saddle River, NJ, USA.
25 Jeong, J., Park, E., Han, W.S., Kim, K.-Y., Oh, J., Ha, K., Yoon, H. and Yun, S.-T. (2017) A method of estimating sequential average unsaturated zone travel times from precipitation and water table level time series data. J. Hydrol., v.554, p.570-581.   DOI
26 Kim, G.-B., Yun, H.-H. and Kim, D.-H. (2006) Relationship Between Standardized Precipitation Index and Groundwater Levels: A Proposal for Establishment of Drought Index Wells. J. Soil Groundw. Environ., v.11(3), p.31-42.
27 Jeong, J., Park, E., Han, W.S., Kim, K.-Y., Suk, H. and Jo, S.B. (2018) A generalized groundwater fluctuation model based on precipitation for estimating water table levels of deep unconfined aquifers. J. Hydrol., v.562, p.749-757.   DOI
28 Kim, G. (2010) Estimation of Specific Yield Using Rainfall and Groundwater Levels at Shallow Groundwater Monitoring Sites. J. Korea Geo-Environ. Soc., v.11(6), p.57-67.   DOI
29 Kim, G., Choi, M., Lee, C., Shin, S. and Kim, H. (2018) Characteristics of spatio-temporal distribution of groundwater level's change after 2016 Gyeongju earthquake. JGSK. v.54(1), p.93-105.   DOI
30 Kim, G.-B. and Yum, B.-W. (2007) Classification and Characterization for Water Level Time Series of Shallow wells at the National Groundwater Monitoring Stations. J. Soil Groundw. Environ., v.12(5), p.86-97.
31 Kim, J.W. (2013) Characteristics of water level change and hydrogeochemistry of groundwater from national groundwater monitoring network, Korea: geostatistical interpretation and the implications for groundwater management. Ph.D. thesis in Korea University, 173p.
32 Kim, K.-H., Yun, S.-T., Kim, H.-K. and Kim, J.-W. (2015) Determination of natural backgrounds and thresholds of nitrate in South Korean groundwater using modelbased statistical approaches. J. Geochem. Explor., v.148, p.196-205.   DOI
33 Lee, B., Hamm, S.Y., Cheong, J.Y. and Kim, G.B. (2014) Relationship between groundwater and climate change in South Korea. Geosci. J., 18, 209-218.   DOI
34 Lee, H.A., Hamm, S.-Y. and Woo, N.C. (2018a) The Abnormal Groundwater Changes as Potential Precursors of 2016 ML 5.8 Gyeongju Earthquake in Korea. Econ. Environ. Geol., v.51(4), p.393-400.   DOI
35 Marechal, J.C., Dewandel, B., Ahmed, S., Galeazzi, L. and Zaidi, F.K. (2006) Combined estimation of specific yield and natural recharge in a semi-arid groundwater basin with irrigated agriculture. J. Hydrol., v.329, p.281-293.   DOI
36 Lee, J.M., Park, J.H., Chung, E. and Woo, N.C. (2018b) Assessment of Groundwater Drought in the Mangyeong River Basin, Korea. Sustainability, 10, 831.   DOI
37 Lee, J.M., Woo, N.C., Koh, D.-C., Kim, K.-Y. and Ko, K.-S. (2020a) Assessing aquifer responses to earthquakes using temporal variations in groundwater level in alluvial and sedimentary bedrock aquifers. Geomat. Nat. Hazards Risk, v.11, p.742-765.   DOI
38 Liu, C.-T., Chia, Y., Chuang, P.-Y., Chiu, Y.-C. and Tseng, T.-L. (2018) Impacts of hydrogeological characteristics on groundwater-level changes induced by earthquakes. Hydrogeol. J., v.26, p.451-465.   DOI
39 Madison, R.J. and Brunett, J.O. (1985) Overview of the occurrences of nitrate in groundwater of the United States. In: National water summary 1984: Hydrologic events, selected water-quality trends, and groundwater resources. U.S. Geological Survey Water Supply Paper 2275, p.93-105.
40 MacLeod, C.L., Barringer, T.H., Vowinkel, E.F. and Price, C.V. (1995) Relation of Nitrate Concentrations in Ground Water to Well Depth, Well Use, and Land Use in Franklin Township, Gloucester Country, New Jersey, 1970-85. U.S. Geological Survey, West Trenton, NJ, USA.
41 ME (Ministry of Environment) and K-water (2019) National Groundwater Monitoring Network in Korea Annual Report 2019. ME and K-water, Daejeon, Korea, 829p.
42 Melchoir, P. (1964) Earth tides. In Research in Geophysics, vol.2, ed. H. Odishaw, 183-193. Cambridge, Massachusetts: Massachusetts Institute of Technology Press.
43 Lee, J.M., Woo, N.C., Lee, C.-J. and Yoo, K. (2017) Characterising Bedrock Aquifer Systems in Korea Using Paired Water-Level Monitoring Data. Water, 9, 420.   DOI