Doctor Porfirio Parra, Mpo. de Guadalupe Distrito Bravo, Chihuahua, Mexico

Wastewater Collection and Treatment Project in Porfirio Parra, Chihuahua

Status: Completed construction


The collected wastewater was discharged to nine different points along the “Interceptor Drain” which eventually discharged to the Rio Grande. 12% of the population lacked wastewater collection service and wastewater treatment was nonexistent. Residents who lacked wastewater collection disposed of their wastewater using latrines and cesspools which, due to the relatively shallow water tables and the type of soil, resulted in wastewater overflows and runoffs throughout the community.


The purpose of the project was to eliminate exposure to untreated wastewater by expanding the wastewater collection and treatment systems to un served areas, contributing to the reduction of groundwater pollution and the risk of water borne diseases.


The project consisted of the construction of a comprehensive wastewater collection and treatment system to serve 100% of the community’s population. The project includes: the integration of sewer lines into a single system, the expansion of the wastewater collection system to un served areas, the construction of a lift station and a regional wastewater treatment plant (WWTP). The WWTP consists of an stabilization pond system with a treatment capacity of 0.34 MGD (Regional WWTP).

Project Financing

Total Project Cost US 2.01M
NADB Funding US 0.14M - NADB Loan
US 0.4M - NADB Grant: BEIF

Results Measurement

Results are measured upon completion of the project through a closeout process that assesses project performance within 6-12 months after completion, as well as the achievement of the goals and objectives established at the time of project certification and financing approval.


Increase access to wastewater collection services

Access to adequate wastewater treatment services

Reduction of untreated wastewater discharges to water bodies or others



Increase number of new connections


Wastewater treatment capacity

0.14 MGD

Quantity of uncollected wastewater discharges eliminated

0.11 MGD



Wastewater collection lines

2.66 miles

Wastewater connections


Wastewater treatment plant

0.14 MGD

Significant project finding(s)

First time wastewater treatment services and elimination of an estimated 0.11 MGD of untreated wastewater into Wastewater treatment plant shared transboundary surface water.