Colonia Esperanza Mpio. Praxedis G.Gro. , Chihuahua, Mexico

Wastewater Collection and Treatment Project in Colonia Esperanza, Chihuahua

Status: Completed


The local water utility provides potable water service to approximately 50% of the population, but does not currently offer any wastewater collection or treatment services. Residents dispose of their wastewater in latrines and septic tanks. However, due to the relatively shallow water table and local soil type, deficient latrines and septic tanks tend to
overflow posing a serious contamination risk for groundwater and the health of local residents.

The proposed Project will directly address this problem by providing wastewater collection and treatment services to 100% the community’s population.


The Project consists of the construction of a comprehensive wastewater collection and treatment system that includes the following components.

Wastewater collection system:

  • Construction of a sewer system that includes:
    • 66,096 linear feet of gravity sewer lines
    • 455 household connections

Wastewater treatment plant:

Construction of a lagoon-based wastewater treatment facility with a treatment capacity of 5.57 liters per second (127,146 gallons a day).


This project will provide wastewater collection and treatment to 100% of the community, thus eliminating potential health and environmental risks associated with raw sewage. It will also reduce the potential for groundwater and surface water contamination by eliminating the use of latrines and septic tanks.

Project Financing

Total Project Cost US 2.16M
NADBank Funding US 0.43M - NADBank Grant: BEIF
Other Funding Partners Chihuahua state water agency, JCAS
Mexican National Water Commision (CONAGUA)