Cascades Mineral Water Content

Mineral Water Content




Geothermal Water of Hot Springs in the Cascade Mountains can be divided into 3 groups, based on their mineral water content.

Group 1. Sodium Chloride Type

Group 1 is exhibited by neutral pH ranges from 7.2 to 8.5, with total dissolved solids average approximately 2650 ppm (parts per million). Chlorine and sodium ions are dominant. Less significant amounts of ions such as carbonate, sulfur, calcium, silica, potassium and others are presented. Salted hot springs:

Group 2. Acid Sulfate Type

Group 2 waters are characterized by an acidic nature and low concentrations of dissolved solids, relative to their sulfur and silica concentration.

  • East Lake Hot Springs, OR
  • Devils Kitchen Hot Springs, OR
  • Paulina Hot Springs, OR

Group 3. Mixed Type

Group 3 includes the majority on mineral waters from the Cascade Mountains. Mixed type hot springs water is exhibited by pH ranges from 6.2 to 9.7, with total dissolved solids average approximately 1620 ppc. Dominant ions are chlorine, sodium, carbonate and sulfur in the sulfate's form, less amounts of  calcium, silica, potassium, magnesium, and boron. The temperature of hot springs water influences the amount of dissolved solids and gases. The higher the temperature, the greater water mineralization.

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