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Board adopts pared‑back resolution pressing for stronger federal action on Tijuana River pollution; supervisors differ on measures
Summary
After extended public comment and debate, the Board approved a narrowed resolution urging federal action and coordination to address chronic cross‑border sewage flows, but deleted more sweeping language calling for tariffs, sanctions or limits on border crossings.
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The San Diego County Board of Supervisors voted to adopt a resolution calling for stronger federal measures to address the ongoing cross‑border pollution affecting the Tijuana River Valley, but the final motion removed broader language that had proposed economic sanctions, tariffs and limitations on cross‑border activity.
Background: Supervisor Jim Desmond introduced the item citing repeated sewage bypasses and contamination from Tijuana that have affected Imperial Beach, the Hotel Del shoreline and other counties’ coastal areas. Desmond said the long‑running problem — including days when an estimated 5–10 million gallons bypass the treatment plant and reach U.S. waters — has harmed businesses, public health and could pose a national security concern where DoD and Navy personnel train locally.
The board heard extensive public comment. Speakers included municipal and business representatives, environmental advocates, homeland security and public‑health voices, county residents from impacted communities and individuals representing the San Diego Regional Chamber of Commerce. Several speakers urged immediate and aggressive federal responses, while others pressed for continued binational cooperation and recognized Mexican authorities’ ongoing infrastructure efforts.
What the board decided: During debate supervisors differed on the range of tools that should be requested of the federal government. Supervisor Desmond sought stronger language that included “possible use” of measures such as diplomatic pressure, economic sanctions, tariffs or limits on cross‑border activity and suggested restricting potable water deliveries to Mexico until wastewater treatment capacity is demonstrated. Vice Chair Lawson Reimer and Supervisor Montgomery‑Stepp said some of that language was overly broad, risked harmful economic consequences and could be read as punitive to cross‑border commerce; they said they preferred targeted diplomatic and legal measures that would pressure Mexico’s government while avoiding broad economic disruption.
A substitute motion advanced by Vice Chair Lawson Reimer narrowed the language by removing the more expansive enforcement options (including economic sanctions and explicit limitations on border crossing activities) while retaining calls for federal diplomatic pressure, international legal action and continued enforcement of treaties and minute orders. The substitute passed with Supervisor Desmond voting no; the remainder of the board voted in favor.
Why this matters: The Tijuana River pollution issue is longstanding and binational in scope. The county’s resolution is intended to push for stronger federal engagement, assert the county’s interest in protecting beaches and public health, and press for binational solutions — while the debate during the hearing showed supervisors balancing assertive action with concerns about economic consequences and rights of cross‑border commerce.
Next steps: The resolution directs the county to continue pressing federal partners, evaluate diplomatic and legal options, and coordinate with state, federal and regional partners as Mexican infrastructure projects proceed. It does not itself impose trade or border restrictions; rather, it frames the county’s preferred federal and diplomatic approaches and asks for federal leadership and enforcement mechanisms.

