RT info:eu-repo/semantics/article T1 Estimating performance and savings of water leakages and unplanned water supply interruptions in drinking water providers A1 Molinos Senante, María A1 Maziotis, Alexandros A1 Sala Garrido, Ramón A1 Mocholi Arce, Manuel AB Water leakages and unplanned water supply interruptions are relevant variables in the provision of drinking water since they directly impact customers and the economic and environmental performance of water companies. For the first time, in this study, we estimated specific efficiency scores for these two quality-of-service variables using the multi-directional data envelopment analysis technique for a sample of 21 Chilean water companies over the 2007–2018 period. Unlike previous studies, this methodological approach allowed us to estimate potential savings for both quality-of-service variables. The results indicate that the Chilean water industry could improve its efficiency over water leakage and unplanned water supply interruption by 28.6% and 52.5%, respectively, while supplying the same volume of drinking water. It is estimated that water companies could save around 48 million cubic metres of drinking water per year. Savings on unplanned water supply interruptions for the Chilean water industry are estimated to be at the level of 62,419 h per year. PB Elsevier SN 0921-3449 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/54137 UL https://uvadoc.uva.es/handle/10324/54137 LA eng NO Resources, Conservation and Recycling, 2022, vol. 186, 106538 NO Producción Científica DS UVaDOC RD 03-jun-2024