The San Diego County Water Authority Board of Directors voted Thursday to endorse Proposition 68, a $4 billion state bond measure on the June 5 ballot for parks, natural resources protection, climate adaptation, water quality and supply and flood protection. Approval of the measure would mean $12 million for the San Diego River Conservancy and $200 million to Salton Sea restoration activities. “Robust Salton Sea funding in this bond measure is significant for San Diego County because it supports agreements that generate substantial water supplies for our region,” said Mark Muir, chair of the water authority’s board.