Tijuana , Baja California, Mexico

Rehabilitation of the Collector Oriente in Tijuana, Baja California

Status: Under construction


CESPT operates the water and wastewater systems for Tijuana and Playas de Rosarito, Baja California. The Tijuana wastewater system currently serves more than 533,000 connections with coverage reaching approximately 90% of households. The utility has a maximum treatment capacity of more than 3,280 liters per second (lps) or 75 million gallons a day (mgd) to serve Tijuana, which is sufficient in the short term. The effluent from all wastewater treatment facilities serving Tijuana is eventually discharged into the Pacific Ocean; however, the effluent quality from one of the plants does not comply with its current discharge permit.


The project consists of the rehabilitation of the Buena Vista section of the of the sewer main known as the Collector Oriente, which extends approximately 1,346 linear meters (4,416 ft).The Project has been designed in three segments,Segment 1: 491 meters (1,611 ft) of 42-inch polyvinyl chloride (PVC) pipe; Segment 2: 469 meters (1,539 ft) of 42-inch PVC pipe; and Segment 3: 386 meters (1,266 ft) of 42-inch PVC pipe.


The purpose of the Project is to improve wastewater collection infrastructure and services for up to 41,435 existing residential wastewater connections, which will reduce the risk of pipeline failures and prevent approximately 312 liters per second (lps) or 7.1 million gallons per day (mgd) of untreated or inadequately treated wastewater discharges, thereby helping reduce water pollution and the risk of waterborne diseases, as well as transboundary wastewater flows into the United States.

Project Financing

Total Project Cost US 1.8M
NADB Funding US 0.89M - NADB Grant: BEIF
Other Funding Partners Mexican federal, state and local funds