San Diego Leaders Unveil Five-Pillar Plan to Fix Tijuana River Sewage Crisis

The report calls for binational funding, plant repairs, and wastewater reuse to end chronic pollution that has closed beaches and harmed health.

Mar. 11, 2026 at 10:04pm

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San Diego leaders have released a new five-pillar blueprint to address the long-standing sewage pollution from Tijuana that has plagued the Tijuana River and South Bay beaches for years. The report, authored by experts Maria Elena Giner and Doug Liden, outlines a comprehensive plan targeting infrastructure funding, operations and maintenance, governance, public communication, and long-term water reuse to reduce chronic beach closures and health impacts from the foul flows.

Why it matters

The Tijuana River pollution has been an ongoing environmental and public health crisis, with untreated sewage, industrial waste, and runoff pouring into the estuary and forcing repeated beach closures. New research has also linked the pollution to serious air quality issues and respiratory problems for nearby residents. This plan aims to finally provide a durable, binational solution to this decades-long problem.

The details

The five-pillar framework calls for securing reliable operations funding, with up to $30 million per year suggested for the South Bay International Wastewater Treatment Plant. It also recommends urgent repairs to Tijuana's aging wastewater infrastructure, real-time monitoring and public reporting, joint US-Mexico communication strategies, and prioritizing long-term wastewater reuse planning. The report highlights existing treaty tools and puts the International Boundary and Water Commission (IBWC) at the center of coordinating the binational efforts.

  • The report was released in March 2026 at a press event near the Tijuana River National Estuarine Research Reserve.
  • In July 2025, the United States and Mexico signed a Memorandum of Understanding and are negotiating additional treaty minutes and expedited project timelines.

The players

Maria Elena Giner

Co-author of the five-pillar report and an expert on the Tijuana River pollution issues.

Doug Liden

Co-author of the five-pillar report and an expert on the Tijuana River pollution issues.

San Diego Regional Chamber of Commerce

The organization that released the five-pillar report on the Tijuana River contamination crisis.

Prebys Foundation

The organization that co-released the five-pillar report on the Tijuana River contamination crisis.

International Boundary and Water Commission (IBWC)

The binational organization leading new monitoring and testing programs in the Tijuana River valley and central to coordinating the efforts outlined in the report.

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What’s next

Over the next year, residents and advocates will be watching IBWC minutes, EPA public updates and local project timelines to see if this blueprint stays on paper or finally translates into a cleaner river and open beaches.

The takeaway

This comprehensive five-pillar plan represents a serious, binational effort to finally address the longstanding Tijuana River pollution crisis that has plagued the region for decades. However, its success will hinge on securing the necessary funding, coordination, and follow-through from both the US and Mexican governments to implement the proposed solutions.