Achieving economic levels of leakage targets is assessed by Regulators from the "top-down" as well as the "bottom-up". Therefore, maintaining the economic level of leakage through the "bottom-up" approach via monitoring, needs to fit alongside all the other estimates in the water balance needed for the "top-down" assessment. However, estimation of each component requires data from disparate sources which is difficult, time consuming and often therefore constrained to an annual exercise.
By integrating the different elements of the water balance, both regionally and throughout the year, this project has enabled a more robust water balance at varying frequencies from daily to quarterly reporting across the supply network. The project was carried out by WRc on behalf of three UK water utilities.
- Determining the water balance at frequent intervals will enable a better understanding of seasonal trends and thereby manage leakage and networks operations more efficiently
- Identifying where component estimates can be enhanced by better understanding the accuracy of measurement techniques will enable better forecasting of demand and leakage
- Efficient collation of Annual Reporting Data
- Enhanced understanding of water distribution costs for use in Network Access Charging etc.