Major Sewage Pipeline Collapse Discharges Millions into Tijuana River

Sewage discharging into the Tijuana River

Tijuana, Mexico, January 20, 2026

A significant sewage pipeline collapse in Tijuana has led to the discharge of 11.5 million gallons of raw sewage daily into the Tijuana River, severely impacting public health and the environment. Local authorities are responding urgently to repair the compromised Insurgentes Collector pipeline, while concerns about the consequences of untreated sewage persist among communities near the border.

Tijuana, Mexico

Major Sewage Pipeline Collapse Discharges 11.5 Million Gallons Daily into Tijuana River

On January 15, 2026, a significant sewage pipeline in Tijuana collapsed, releasing approximately 11.5 million gallons of raw sewage daily into the Tijuana River. This incident has raised serious environmental and public health concerns, affecting both Tijuana and the San Diego coastline. Local authorities are urgently working to repair the pipeline and prevent further contamination.

Repair Efforts and Environmental Impact

The International Boundary and Water Commission (IBWC) reported that repairs on the Insurgentes Collector pipeline are underway. The State Commission of Public Services of Tijuana (CESPT) has reconstructed the damaged well and manhole and continues additional repairs. The pipeline, approximately five kilometers long, carries sewage from residential neighborhoods to treatment facilities. The collapse occurred late on January 15, leading to the diversion of additional wastewater into the Tijuana River as crews worked to address the issue. Testing and inspection are in progress to ensure the collector is operating properly.

The discharge of untreated sewage poses significant risks to public health and the environment. Pollutants and pathogens in the sewage have been detected in local air and soil, exposing residents miles away from the water to potential health hazards. Communities on both sides of the border have been raising the alarm about this contamination for decades, complaining of the near-constant stench in the air, and pushing for better wastewater infrastructure.

Background on the Tijuana Sewage Crisis

The Tijuana sewage crisis has been an ongoing issue due to failing infrastructure on both sides of the U.S.-Mexico border. Millions of gallons of untreated wastewater are discharged into the Pacific Ocean daily, leading to beach closures and environmental degradation. In response, the U.S. Environmental Protection Agency (EPA) and the IBWC have been working on projects to address the crisis, including the rehabilitation of the Insurgentes Collector pipeline and the expansion of the South Bay International Wastewater Treatment Plant. These efforts aim to reduce the flow of untreated sewage into the Tijuana River and improve the overall water quality in the region.

Frequently Asked Questions (FAQ)

What caused the sewage pipeline collapse in Tijuana?

The collapse of the Insurgentes Collector pipeline in Tijuana on January 15, 2026, was due to structural failure, leading to the release of approximately 11.5 million gallons of raw sewage daily into the Tijuana River.

What are the environmental and health impacts of this sewage discharge?

The discharge of untreated sewage poses significant risks to public health and the environment. Pollutants and pathogens in the sewage have been detected in local air and soil, exposing residents miles away from the water to potential health hazards. Communities on both sides of the border have been raising the alarm about this contamination for decades, complaining of the near-constant stench in the air, and pushing for better wastewater infrastructure.

What measures are being taken to repair the pipeline?

The International Boundary and Water Commission (IBWC) reported that repairs on the Insurgentes Collector pipeline are underway. The State Commission of Public Services of Tijuana (CESPT) has reconstructed the damaged well and manhole and continues additional repairs. Testing and inspection are in progress to ensure the collector is operating properly.

How is the Tijuana sewage crisis being addressed?

The Tijuana sewage crisis has been an ongoing issue due to failing infrastructure on both sides of the U.S.-Mexico border. In response, the U.S. Environmental Protection Agency (EPA) and the IBWC have been working on projects to address the crisis, including the rehabilitation of the Insurgentes Collector pipeline and the expansion of the South Bay International Wastewater Treatment Plant. These efforts aim to reduce the flow of untreated sewage into the Tijuana River and improve the overall water quality in the region.

Key Features of the Tijuana Sewage Crisis

Feature Description
Pipeline Collapse Structural failure of the Insurgentes Collector pipeline on January 15, 2026, releasing 11.5 million gallons of raw sewage daily into the Tijuana River.
Repair Efforts Ongoing repairs by the International Boundary and Water Commission (IBWC) and the State Commission of Public Services of Tijuana (CESPT) to reconstruct the damaged well and manhole.
Environmental Impact Discharge of untreated sewage poses significant risks to public health and the environment, with pollutants and pathogens detected in local air and soil.
Background The Tijuana sewage crisis has been an ongoing issue due to failing infrastructure on both sides of the U.S.-Mexico border, leading to millions of gallons of untreated wastewater being discharged into the Pacific Ocean daily.
Addressing the Crisis The U.S. Environmental Protection Agency (EPA) and the IBWC are working on projects to address the crisis, including the rehabilitation of the Insurgentes Collector pipeline and the expansion of the South Bay International Wastewater Treatment Plant.


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