Improving Water Quality in the Tijuana River Valley - Project #4

This factsheet provides an overview of Project #4 under evaluation for its ability to reduce environmental and human health impacts from transboundary flows in the Tijuana River Valley.

This project improves the conveyance of untreated wastewater from canyons to treatment plants.

• Improving Water Quality in the Tijuana River Valley - Project #4 (pdf) (445.02 KB)
• Trasladar el tratamiento de aguas residuales de los flujos cañoneros a EE. UU. (mediante ITP ampliado) para reducir flujos a San Antonio de los Buenos – Proyecto #4 (pdf) (326.37 KB)

The feasibility analysis technical memorandum for Project #4 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 social and environmental impacts. This evaluation supported the development of the alternatives for the Alternatives Analysis.

• Feasibility Analysis Technical Memorandum for Project 4: Shift Wastewater Treatment of Canyon Flows to U.S. (via Expanded ITP or SBWRP) to Reduce Flows to SAB Creek (pdf) (2.38 MB)
• Addendum to the Feasibility Analysis for Project 4 (pdf) (1.89 MB)