伊香保温泉 総合泉(混合泉)
Ikaho Onsen Sougousen (Blended Source)Operated by · 石段の湯
Mixed source
硫
Sulfate
+ Bicarbonate · Chloride
Classification
Calcium-Sodium Sulfate-Bicarbonate-Chloride spring
A blended source drawing from Ikaho Onsen's combined wellhead — a sulfate-led spring with bicarbonate and chloride layered in nearly equal measure, neutral and hypotonic. The water reads as essentially colorless and clear, with a faint scatter of brownish particles that hints at the iron-bearing character Ikaho is known for. At about 1,189 mg/kg of dissolved solids, the chemistry sits in the moderate band — settled, mineral-rich, and easy to soak in for a while.
Source temperature
41.2°C
Warm
Tonicity
1.19g/kg
Hypotonic
Flow rate
4,627L/min
Very high
- Color
- colorless and transparent, with a few brownish floating particles
Analyzed May 30, 2017·群馬県薬剤師会環境衛生試験センター