The South Coast Water District voted to take another step towards building a $100 million plant that converts ocean water into drinking water for its customers by 2021. The five-acre Doheny desalination plant is proposed for district-owned land alongside San Juan Creek in Dana Point. It could initially produce up to 5 million gallons of water per day, providing 75 percent of district needs within five years. Eventually, the plant could yield 15 million gallons of water per day.