| Ionic ratio | Wet | Dry | Comment | Interpretation |
| SO4/Cl | 0.00 - 0.57 | 0 - 0.25 | high | Additional sources of SO4 from weathering of sulfates |
| Na/Cl | 0.00 - 0.07 | 0 - 0.01 | low | No Na-adsorption during freshening and a little silicate weathering |
| Mg/Cl | 0.00 to 0.73 | 0 - 2.04 | high | Cation-exchange and silicate weathering of sandstones. |
| Na/HCO3 | 0.01 - 0.25 | 0 - 0.004 | high | Substantial weathering of Na-feldspar or other Na-silicates |
| Ca/HCO3 | 0.00 - 8.74 | 0 - 1.56 | high | Calc-carbonate dissolution or Calc-silicate weathering |
| Ca/SO4 | 1.53 - 21.97 | 3.84 - 617 | high | Gypsum dissolution present |
| Ca/Mg | 0.00 - 10.75 | 0 - 4.41 | high | Cation-exchange of weathering of silicate rocks. |
| Ca + Mg/Na + K | 0.00 - 10.65 | 0.00 - 41.00 | high | Carbonate weathering |
| HCO3/∑Anions | 0.00 - 0.05 | 0.01 - 0.08 | high | Weathering reactions and input of dissolved species in recharge area |
| NO3/∑Anions | 0.00 - 2.8E−6 | 0.00 - 5.6E−6 | very low | No anthropogenic contribution |
| SO4/∑Anions | 0.00 - 0.01 | 0.00 - 2.3E−3 | very low | No oxidation of sulphides. |
| Mg/Ca | 0.09 - 1.28 | 0.00 - 2.04 | low | Weathering of Silicate rocks |
| Na/Na + Cl | 0.00 - 1.00 | 0.00 - 1.00 | high | Sodium source other than halite-albite, ion exchange |
| Mg/Ca + Mg | 0.09 - 0.56 | 0.18 - 0.67 | high | Dolomite dissolution, calcite precipitation or saltwater |
| Ca /Ca + SO4 | 0.60 - 0.96 | 0.79 - 1.00 | high | Calcium source other than gypsum |
| Ca + Mg/SO4 | 2.96 - 24.46 | 7.25 - 756.85 |
|
|
| Na + K-Cl/Na + K-Cl + Ca | −0.31 - 0.87 | −2.16 - 0.53 | high | Plagioclase weathering unlikely |
| Cl/∑Anions | 0.00 - 0.14 | 0.00 - 0.05 | low | Rock weathering |