San Diego is accelerating construction of its landmark water recycling system and making other changes that will save money, benefit the environment and make pipeline construction less disruptive.

City officials plan to begin recycling 30 million gallons a day of sewage into drinking water by 2021, much quicker than a previous schedule calling for 15 million gallons daily by 2023 and 30 million gallons per day by 2027. The faster schedule is possible primarily because officials have decided to do all of the recycling in Miramar instead of splitting it in half between Miramar and Otay Mesa.