• Data reference period
• Geographic localization (NUTS - 2013)

• URBAN PUBLIC SYSTEMS OF WATER SERVICES:  Water supply and/or wastewater sanitation systems intended to serve population, normally installed on public roads or areas, on lands of the associated management entity or of others, which use is of public interest.
• REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
• AUTHORIZED CONSUMPTION:  Volume of water, including exported water, that is supplied to registered consumers, to the management entity itself and to others, implicitly or explicitly authorized, for domestic, commercial and industrial use during the reference period. Consumption can be billed or unbilled, measured or not measured, according to local practice.

Water supplied volume/ Resident population