Solan de Cabras is a popular Spanish certified natural mineral water sourced from the province of Cuenca - the low levels of Sodium and trace metals made Solan de Cabras a prized water since even before it was declared a public utility in 1790 by King Carlos IV. Composition in mg/litre pH (at source) 7.4 Total Dissolved Solids 252 Dry Residue 278 Calcium 59.4 Magnesium 25.8 Sodium 5.1 Potassium 1.1 Bicarbonates 284 Sulphates 21.3 Floride < 0.2 Chlorides 7.4 Nitrates 2.1 Silica 7.2