[A-HW34] Isotope hydrology 2026

[AHW34-P02] Groundwater quality in the double-cropping area of northwestern Saitama Prefecture, Japan

*Yuka Saito¹, Yuki Itoh², Masaya Yasuhara¹, Seongwon Lee¹, Takashi Nakamura³, Hiroshi A Takahashi⁴ (1. Department of Environmental Systems, Faculty of Geo-Environmental Science, RISSHO University, 2. Rissho University graduate School of Geo-environmental Science, 3. International Research Center for River Basin Environment, University of YAMANASHI, 4. Geological Survey of Japan, AIST)

Keywords:groundwater quality, double cropping, dolomite lime, water hardness, denitrification