The paper presents a study of quality of natural waters and water in a centralized water supply system during the period of an increase in the “Smell” indicator in the spring of 2021. The chemical and physical properties of water, the results of quality and quantity of studying the variety I phytoplankton in the most difficult period of deterioration in quality of river water. Low water and exceeding MPC concentrations of organic substances in river water. The Don River causes altered form odorant substance as evidenced by the results of determination in water 1,2,3- t rihlorbenzol and geosmin, hexachloroethane and aniline shown in operation. Barrier function of reagent treatment methods used at water treatment plants in the lower reaches of the river. The Don River, even when combined with carbonated water, is deficient in odor-producing substances.

The use of hydro-turbine pumps increases the efficiency of pumping stations for machine irrigation by utilizing the free water energy of agricultural irrigation sources. The energy savings on irrigation pumping stations achieved through the use of hydro-turbine pumping stations (HTPS) (traditionally obtained through electrical networks) creates ecological conditions for the implementation of turbine pumps, while also improving the economic efficiency of pumping stations.