Lake Tahoe still murky

Water clarity shows no improvement over last decade

Efforts to improve the clarity of Lake Tahoe’s water have made little progress over the last decade.

The lake, renowned worldwide for its crystal-clear waters, showed improvement in 2010 but remains about as murky as it was 12 years ago, according to In the 2011 study cited, researchers from the UC Davis Tahoe Environmental Research Center and the Tahoe Regional Planning Agency were able to see a dinner-plate-sized white disk an average of 68.9 feet below the surface—better than the 64.4 measurement taken in 2010 but still well short of the 97.4 feet state and federal regulators have set as a goal. Runoff and pollution have caused the water to become murkier and warmer in recent years, and scientists have yet to find a solution.