… Nonprofit joins battle to mitigate Lake Mitchell algal blooms Lake Mitchell has a long history of algal blooms. The reservoir, built in 1928, was once a source of drinking water for the city of Mitchell and recreation for the community. However, by the 1990s, algal blooms increased due to nutrients accumulating in the lake. By 2003, the city stopped using the lake as its sole source for drinking water. Part … were taken five times during summer 2020 at an average of 70 locations in the lake. Other SDSU faculty are doing research to connect the amount of algae with other water quality parameters, according to assistant professor John McMaine, who now leads the project. “We want to be able to monitor the extent of algae and blue-green algae concentration using a list …