About MIYABARA YUICHI
About 信州大 山岳科研
About 地下水学会誌
About Nagano prefecture
About Groundwater
About spring water
About natural environment
About tap water
About water source
About water quality survey
About water temperature
About pH
About electrical conductivity
About diagrams and charts
About calcium carbonate
About ion
About shallow groundwater
About Water Quality
About Suwa city
About brand-name spring water
About dissolved Ion
About diagram
About Water resources
About 名水
About 諏訪市