This powerpoint presentation begins by providing a brief overview of the calculation of the economic level of leakage (ELL). The IWA Water Loss Task Force (WLTF) has had an objective of developing quick practical methods of determining SRELL since 1991, but encountered two barriers to achieving this: the United Kingdom methods are data intensive and cannot be used if there are no DMAs and if there are seasonal variations in night use; and, absence of a methodology for allowing for influence of pressure on the short-run economic level of leakage (SRELL) due to reduction in breaks. Three methodological solutions are presented, along with ELLCalcs models that were incorporated into the LEAKSSuite ELLCalcs module. Includes tables, figures.