SAN DIEGO – San Diego may shift the second phase of the city’s Pure Water sewage recycling system to a more efficient purification method that could save billions of dollars, preventing steep jumps in local sewer and water bills.
The new method could dramatically change the size, scope and cost of the massive project’s Phase Two, which had been expected to be nearly twice as large as the nearly complete first phase.
City officials say it could let them avoid building expensive pipelines to either San Vicente Reservoir or Lake Murray from a new purification plant to be built in Mission Valley…