The Cities of Imperial Beach, Chula Vista, and the Port of San Diego announced their litigation against the U.S. Section of the International Boundry and Water Comission for failing to prevent transboundary sewage flows into the Tijuana River Valley closed, unlocking actions that will help protect public health, the local economy and the environment.
Plaintiffs dismissed their Clean Water Act and Resources Conservation and Recovery Act claims against USIBWC as a part of the April 2022 settlement. According to that settlement, USIBWC is implementing several substantive measures to mitigate the effects of transboundary pollution in the Tijuana River Valley and to improve situational awareness and the flow of information from USIBWC to stakeholders.
“The City of Chula Vista pledged our support for this lawsuit to ask federal officials to address the flow of sewage onto our South County waters and beaches,” said Chula Vista Mayor John McCann. “We are glad the EPA is working with stakeholders toward a resolution of these issues and that interim mitigation and monitoring measures are underway.”
Actions that the USIBWC will take include the installation and maintenance of the temporary sediment berm to detain dry weather transboundary flows through the USIBWC flood control channel, as well as prompt reconstruction of the berm after washouts; Improved daily inspection and cleaning of canyon collectors and establishment of a communications protocol with the Comisión Estatal de Servicios Públicos de Tijuana and Customs and Border Protection to address trash buildup at canyon collector intakes; Installation of water quality monitoring catch basins at each of the canyon collectors.
“This victory is for the environment, the residents of Imperial Beach and South County, and anyone who wants to spend a day at the beach without fear for their health. But, make no mistake, until the federal government and Mexico complete their long overdue sewage infrastructure projects, polluted waters will continue to flow through the Tijuana River Valley and into the ocean waters off Imperial Beach every time it rains,” said Commissioner Dan Malcolm, Imperial Beach’s appointee to the Port of San Diego Board of Port Commissioners. “We remain steadfast in our dedication to the health and safety of our communities and will continue with our partners to engage with the EPA and USIBWC to expedite their projects. Time is of the essence to end this decades-long public health and environmental crisis.”
Additional actions include the preparation and implementation of a plan for spill and transboundary flow response actions at Stewart’s Drain, a particularly problematic canyon collector; and the Publication of transboundary flow events via Twitter to improve public awareness.
“Our region and especially the people of Imperial Beach have suffered for decades the impacts of sewage pollution to our beaches. Our lawsuit was the key that finally unlocked all of the action we are now beginning to see, actions that will help protect public health, our economy, and our environment,” said Imperial Beach Mayor Paloma Aguirre. “There is a lot of work ahead of us still, but our regional partnership is stronger than ever, and we are committed to working collaboratively with the federal government to solve, once and for all, one of the worst water pollution crises in America.”
Port officials say these actions reflect interim mitigation measures while the U.S. Environmental Protection Agency proceeds with spending $300 million in funding as part of the United States-Mexico-Canada Agreement Implementation Act (USMCA), which was allocated during this litigation to design, construct, and operate the Comprehensive Infrastructure Solution to address chronic transboundary flows.
