Analysis of Water Consumption Changes during two Decades

Abstract

Water consumption depends on the consumers’ habits, industrial companies and the nature of the activity, as well as on public users. Water consumption in Lithuania has decreased by more than three times over the past two decades. This was influenced by the changed consumers’ habits, implemented water metering and increased water prices. But it has been analyzed little, how the dynamics of water consumption has been changing. This article examines the dynamics of water consumption variation over 20 years in one of Vilnius district. Variations of water consumption are analyzed in the article and the obtained results are compared with the parameters in the legal acts. Water consumption per night was analyzed in the article also, as these values could be fast and reliable assessment of water losses in network. The analysis of night water consumption was conducted and the recommended norm of night water consumption indicated.

Keywords

• water consumption
• demand patterns
• variation coefficient
• water losses
• night flows