Full Breakdown
U.S. and Mexico Forge New Agreement to Tackle Tijuana Sewage Crisis
12/16/2025, 9:20:08 PM
Overview of Minute 333
On December 15, 2025, the United States and Mexico signed a new agreement, known as Minute 333, aimed at addressing the long-standing Tijuana River sewage crisis. This agreement outlines specific actions and timelines to improve wastewater management and infrastructure on both sides of the border. The U.S. Environmental Protection Agency (EPA) emphasized that while the agreement represents significant progress, it acknowledges that the crisis will not be resolved immediately.
Key Provisions of the Agreement
Minute 333 requires Mexico to develop a comprehensive Tijuana water infrastructure master plan within six months to align wastewater capacity with projected population growth. Additionally, Mexico will conduct feasibility studies for expanding the San Antonio de los Buenos Wastewater Treatment Plant from 18 million gallons per day (MGD) to 43 MGD and construct a sediment basin in Matadero Canyon before the 2026-27 rainy season. Mexico is also tasked with building the Tecolote-La Gloria Wastewater Treatment Plant, which will have a capacity of 3 MGD by December 2028.
The U.S. will participate in a binational “Minute 333 Work Group” to review Mexico’s feasibility studies and establish procedures for monitoring and maintenance. The U.S. is currently rehabilitating its South Bay International Wastewater Treatment Plant (SBIWTP), which will increase its capacity from 25 MGD to 50 MGD, with a peak capacity of 75 MGD expected by the end of 2027.
Criticism and Concerns
Despite the agreement's positive reception, some critics have raised concerns. Ramon Chairez, director of education and environmental advocacy at Un Mar de Colores, noted that while the agreement includes necessary infrastructure projects, it primarily focuses on studies and planning rather than immediate construction. He expressed disappointment over the omission of the Saturn Boulevard hotspot, a critical pollution site in the U.S. that poses health risks to nearby communities.
Official Statements
EPA Administrator Lee Zeldin stated, “Great progress has been made this year to achieve the 100% solution to the Tijuana River sewage crisis... We have set the framework for tremendous steps to be made.” He emphasized the importance of addressing future population growth in Tijuana as part of the solution.
Imperial Beach Mayor Mitch McKay commended the agreement, highlighting its potential to bring measurable progress in resolving the transboundary sewage crisis. Representative Scott Peters also expressed gratitude for the commitment to infrastructure improvements, stating, “But Congress cannot do this alone.”
Conflicting Reports & Gaps
While the agreement outlines various commitments, there is a lack of clarity regarding penalties for Mexico if it fails to meet its obligations. Additionally, concerns remain about the adequacy of funding and resources necessary to implement the proposed projects effectively.
Conclusion: A Path Forward
Minute 333 marks a significant step in addressing the Tijuana sewage crisis, with both nations committing to collaborative efforts for long-term solutions. The successful implementation of this agreement is crucial not only for immediate environmental concerns but also for sustainable growth and public health in the border region.
