The suitability of water for human consumption is checked in accordance with current legislation.
To be classified as potable, water is required to meet certain specifications based on its quality characteristics.
Limits must be set so that water can be consumed safely.

Physicochemical water control.
Includes: pH, Conductivity, total solids, suspended solids, total hardness, dissolved magnesium (Mg), calcium (Ca), carbonates, carbonates and chlorides, Turbidity
Analysis for trace elements and contaminants. Includes: Nitrite, Nitrate, Phosphate, Ammonia, Potassium, Total Chlorine, Sulphate
Analysis for metals. Includes: Iron, Manganese, Copper, etc.

Water control microbiological.
Includes: Coliforms, Escherichia coli, Enterococci and OMX (at 37oC and 22oC), Thio reductive clostridia, Pseudomonas, Legionella.