San Diego’s plan to use recycled wastewater to provide one-third of the city’s water supply by 2035 was given the green light earlier this month by city council, which voted to authorize Mayor Kevin Faulconer to begin awarding construction contracts for the first phase of the project. Phase one of Pure Water San Diego will cost roughly $1.4 billion and involve the construction of a water purification facility near the North City Water Reclamation Plant, located just east of interstate 805 near Miramar Road.