Lake Tahoe not getting murkier

<p>Scientists say the picturesque waters of Lake Tahoe are still murkier than in previous decades but have not worsened over the past 10 years.</p><p>University of California, Davis professor Geoff Schladow says the lake's waters were clear to an average depth of 68.1 feet in 2009, down from 102.4 feet in 1968, when the school began measurements.</p><p>Joanne Marchetta of the Tahoe Regional Planning Agency says stabilization of the lake's clarity means restoration projects are working.</p>