The aim of this article is to present research results on the influence of factors of sustainable water use training (management support of training, co-worker support of training, incentives for using skills acquired during training) and the influence of this training on technical efficiency and employee efficiency. The article is based on an empirical study of 328 medium and large companies in the Slovene processing industry. The findings show that the training factors have a statistically significant and positive effect on sustainable water use training and that training has a positive effect on technical efficiency. They also offer new theoretical knowledge as well as practical guidelines for anyone working in the sustainable development management of natural resources. Namen prispevka je predstaviti izide iz raziskave o vplivih dejavnikov usposabljanja o trajnostni rabi vode (o podpori usposabljanju, ki jo kažejo nadrejeni in sodelavci, spodbudah za uporabo znanj in veščin, pridobljenih med usposabljanjem) in vplivu usposabljanja na tehnično in delovno učinkovitost zaposlenih. Empirično raziskavo smo opravili na vzorcu 328 srednje velikih in velikih podjetij v slovenski predelovalni dejavnosti. Ugotovili smo, da podpora usposabljanju, ki jo kažejo nadrejeni in sodelavci, ter spodbude za uporabo znanj in veščin, pridobljenih med usposabljanjem, statistično značilno in pozitivno vplivajo na uposabljanje o trajnostni rabi vode, uposabljanje o trajnostni rabi vode pa statistično značilno in pozitivno vpliva na tehnično učinkovitost. Izidi iz raziskave prinašajo nova teoretična spoznanja in praktične usmeritve za vse, ki se ukvarjajo z menedžementom trajnostnega razvoja z vidika ohranjanja naravnih virov.