Tijuana River sewage crisis (early 2000s–present)
Raw sewage from Tijuana has flowed into the Tijuana River and onto San Diego beaches for at least two decades, closing beaches in Imperial Beach and creating health risks in border neighborhoods.
The South Bay plant treated only part of the flow; sewage crossed the border during storms and high flows.
Two binational agreements and multiple infrastructure projects were launched to capture and treat the sewage, including the current plant expansion.
This is the problem the $552M expansion is meant to solve. It explains why the project exists and why every schedule slip extends the suffering of nearby communities.
