Land-use ballot measures for November 2000. Alameda County Voters approved the Sierra Club's urban growth boundary initiative drawing draw a tight urban limit line around Dublin, Pleasanton, Livermore, Sunol and Castro Valley. Voters rejected the competing Tri-Valley Vision 2010 measure, a less-restrictive UGB placed on the ballot by the Board of Supervisors. Measure D (Sierra Club initiative): Yes, 56.5% Measure C (Vision 2010 plan): No, 56.9% County voters approved a 20-year extension of a hal...