Researchers: Drought helps improve Lake Tahoe's clarity

Apr 13, 2015 11:11 AM by News Staff

RENO, Nev. (AP) - Researchers say Lake Tahoe's clarity improved again in 2014 and the drought was a factor why.

The University of California, Davis' Lake Tahoe Environmental Research Center reports the average clarity last year was 77.8 feet, up 7.5 feet from the previous year.

It represents the most year-to-year improvement in more than a decade and is part of a long-term trend showing improvement in the lake's clarity.

Researchers attribute last year's improvement to the four-year drought and an ongoing environmental restoration project in the Tahoe Basin.

Light rain and snow led to less clarity-stealing sediment and other pollutants being washed into Tahoe.

The clarity was based on the average of 28 readings taken during 2014 and represents the level at which a white disc lowered from a boat vanishes from view.

Measurements have been taken since 1968, when the clarity was 102.4 feet.

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