Importance of reservoirs for water supply and their effect on the quality of river water

Abstract

In many cases domestic drinking and industrial water supply at the current level of development of the national economy can be provided only by reservoirs. Large reservoirs, other conditions being equal, improve the quality of river water and adjust it seasonally. The development of reservoirs usually requires relocation of water intakes and outfall sewers and the accomplishment of many sanitary measures. It is necessary to find means to combat bluegreen algae and to utilize more fully the potentialities created by reservoirs for recreation.