| Parameter | Sample N158A | Uncertainty | Sample N158B | Uncertainty | Unit |
| Electr. conductivity (25 °C) | 489 | 2 | 435 | 1 | µS/cm |
| Total hardness | 2.04 | 0.02 | 1.25 | 0.02 | mmol/L |
| Alkalinity KS 4.3 (as H+) | 1.71 | 0.02 | 1.19 | 0.01 | mmol/L |
| Hydrogen carbonate | 101 | 1 | 69.5 | 0.4 | mg/L |
| Calcium | 57.9 | 0.7 | 39.4 | 0.6 | mg/L |
| Magnesium | 14.5 | 0.2 | 6.41 | 0.09 | mg/L |
| Sodium | 11.7 | 0.3 | 32.5 | 0.2 | mg/L |
| Potassium | 2.30 | 0.04 | 5.52 | 0.04 | mg/L |
| Nitrate (as NO3) | 39.9 | 0.6 | 73.3 | 1.7 | mg/L |
| Nitrite (as NO2) | 0.0468 | 0.0010 | 0.063 | 0.003 | mg/L |
| Ammonium (as NH4) | 0.0251 | 0.0044 | 0.070 | 0.003 | mg/L |
| Chloride | 47.6 | 0.9 | 14.7 | 0.3 | mg/L |
| Sulphate (as SO4) | 45.3 | 0.5 | 62.6 | 0.4 | mg/L |
| Orthophosphate (as PO4) | 0.132 | 0.001 | <0.009 | - | mg/L |
| Boron | 0.0431 | 0.0002 | 0.0244 | 0.0001 | mg/L |
| DOC (as C) | 5.62 | 0.03 | 1.56 | 0.01 | mg/L |
| Total phosphate (as PO4) | 0.184 | 0.001 | <0.009 | - | mg/L |
| Cyanide | 0.0469 | 0.0003 | 0.0165 | 0.0001 | mg/L |