Determination of timescales of nitrate contamination by groundwater age models in a complex aquifer system

Eun-Hee Koh, Seoul National University, Seoul, South Korea, Eunhee Lee, Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea, Dugin Kaown, Seoul Nation Univ, Seoul, South Korea, Kang Kun Lee, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea and Christopher T Green, USGS, Integrated Modeling Prediction Division, Moffett Field, California, United States