Description: Photograph used for a story in the Oklahoma Times newspaper. Caption: "Municipal engineer Ed Sellner, assistant water utilities director, said the aeration system to be laid in the deepest part of Lake Hefner will change the entire ecology of the lake. (New system noted to be a positive for people and wildlife.)"
Date: December 10, 1971
Creator: Aker, Joe
Item Type: Refine your search to only Photograph
Partner: Oklahoma Historical Society