RENO, Nev. (MyNews4.com & KRNV) -- The clarity of Lake Tahoe's famed blue waters remains stable, but takes a step back from 2012.
Data released on Thursday by the UC Davis Tahoe Environmental Research Center and the Tahoe Regional Planning Agency reported the average annual clarity level for 2013 at 70.1 feet. While the reading represents a 5-foot decrease over the previous year, it is still well above the lowest value recorded in 1997 of 64.1 feet.
The clarity level for 2013 is the average of 25 individual readings taken throughout the year.The highest individual value recorded was 90 feet, and the lowest was 49 feet, due to seasonal variations. Scientists say large stream inflows in the early winter were mainly responsible for the lower values.