| Parameter | Sample N172A | Uncertainty | Sample N172B | Uncertainty | Unit |
| Electr. conductivity (25 °C) | 422 | 1 | 321 | 1 | µS/cm |
| Total hardness | 1.78 | 0.02 | 1.032 | 0.012 | mmol/L |
| Alkalinity KS 4.3 (as H+) | 2.07 | 0.04 | 1.565 | 0.019 | mmol/L |
| Hydrogen carbonate | 123 | 2 | 92.4 | 1.2 | mg/L |
| Calcium | 45.0 | 0.8 | 28.0 | 0.4 | mg/L |
| Magnesium | 16.0 | 0.2 | 8.12 | 0.15 | mg/L |
| Sodium | 10.5 | 0.3 | 20.63 | 0.19 | mg/L |
| Potassium | 2.54 | 0.02 | 5.38 | 0.03 | mg/L |
| Nitrate (as NO3) | 31.3 | 0.8 | 16.5 | 0.3 | mg/L |
| Nitrite (as NO2) | 0.0640 | 0.0003 | 0.0530 | 0.0005 | mg/L |
| Ammonium (as NH4) | <0.01 | - | 0.060 | 0.002 | mg/L |
| Chloride | 38.4 | 0.6 | 16.9 | 0.3 | mg/L |
| Sulphate (as SO4) | 21.2 | 0.4 | 38.2 | 0.6 | mg/L |
| Orthophosphate (as PO4) | 0.070 | 0.004 | <0.009 | - | mg/L |
| Boron | 0.0392 | 0.0010 | 0.0540 | 0.0005 | mg/L |
| DOC (as C) | 3.08 | 0.05 | 4.64 | 0.05 | mg/L |
| Total phosphate (as PO4) | 0.164 | 0.002 | <0.009 | - | mg/L |
| KMnO4-Index (as O2) | 4.42 | 0.11 | 2.83 | 0.12 | mg/L |