Access to irrigation water is an advantage. Water is a tool and a means of ensuring ideal conditions for plant growth and optimization of yield. Sources of irrigation water are potentially all water resources, surface, underground and reclaimed. In the Zitsa’s plateau, the absence of a collective irrigation system entails high watering costs. For this reason, the present work investigates the feasibility of collective irrigation work, given the available resources, the limitations of existing legislation, the possibilities of exploiting financial sources, and the estimated impact of the project on society. The solution that has been addressed is the on-stream reservoir, in which, for the full coverage of needs, the simultaneous use of three small reservoirs is required.