In 1963, the Municipality of Saanich announced plans to clean up the lake. In 1975, the entire Swan Lake area was connected to the city sewer system, at least diverting, if not solving, the problem. The lake continues to turn green and thick with duckweed in the summer, and will likely always return to this state, because of its location and size. Oxygen levels are still low in the deeper waters of the lake, but trout coming up from the Colquitz river are able to survive for much of the year now. The lake is gradually returning to a state of equilibrium, and is currently being monitored for its oxygen and eutrophication levels.