The California Coastal Commission Wednesday unanimously approved a modified permit for San Diego’s Point Loma Wastewater Treatment Plant, saving the city nearly $2 billion, according to local officials. “The Coastal Commission’s vote validates that San Diego is a true steward of the environment,” Mayor Kevin Faulconer said. “The commission recognizes our efforts to protect the ocean, efficiently operate city facilities and invest ratepayer dollars into infrastructure that will provide a reliable water source for our city.” Without the modified permit, converting the plant for secondary treatment capabilities would have cost $1.8 billion.