A slate of public projects valued at hundreds of millions of dollars is being planned along the U.S.-Mexico border to prevent untreated wastewater from polluting the U.S. side of the Tijuana River valley and San Diego area beaches with trash, sediment and millions of gallons of raw sewage.
The bulk of the work is being planned by the U.S. Environmental Protection Agency (EPA), funded in part by $300 million from the United States-Mexico-Canada Agreement (USMCA ), though the agency estimates its total capital costs for the work will reach $627 million. The additional funding mechanisms have not yet been identified, according to EPA.