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Improving Water Quality in the Tijuana River Valley - Project #8

This factsheet provides an overview of Project #8 under evaluation for its ability to reduce environmental and human health impacts from transboundary flows in the Tijuana River Valley.

This project includes improvements to wastewater treatment in Mexico to reduce the amount of untreated wastewater entering the ocean.

  • Improving Water Quality in the Tijuana River Valley - Project #8 (pdf) (436.27 KB)
  • Mejora de la Planta de Tratamiento de Aguas Residuales SABTP para reducir las aguas residuales no tratadas en la costa – Proyecto #8 (pdf) (319.21 KB)

The feasibility analysis technical memorandum for Project #8 outlines an estimate of capital costs; an estimate of design, project, and construction management costs; an estimate of operation and maintenance (O&M) costs; a rough project implementation schedule; a summary of regulatory, engineering, and potential implementation issues; and a preliminary summary of impacts. This evaluation supported the development of the alternatives for the Alternatives Analysis.

  • Feasibility Analysis Technical Memorandum for Project 8: Upgrade San Antonio de los Buenos Wastewater Treatment Plant to Reduce Untreated Wastewater to Coast (pdf) (2.55 MB)
  • Addendum to the Feasibility Analysis for Project 8 (pdf) (1.67 MB)

Sustainable Water Infrastructure

  • Clean Water Technology Center
  • Planning for Effective Water Infrastructure
  • Effective Water Utility Management Practices
  • Water Infrastructure Sector Workforce
  • USMCA Tijuana River Watershed
  • EPA Community Grants
Contact Us About Effective Water Infrastructure
Contact Us About Effective Water Infrastructure to ask a question, provide feedback, or report a problem.
Last updated on June 9, 2025
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