Lake Tahoe clarity held steady in 2009 for the ninth year in a row, but the lake remains significantly murkier than in previous decades, according to University of California, Davis scientists who have monitored the lake for more than 40 years.
The lake was clear to an average depth of 68.1 feet in 2009, the researchers found. That’s down from 102.4 feet in 1968, when scientists first measured the lake’s clarity. Researchers had estimated the lake was losing about a foot of visibility per year.
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