MATEZA worked in the northern part of the forest corridor and ASOS implemented activities in the southern end of the corridor.

The local communities voiced needs for improved hygiene and sanitation in order to protect their health and the health of the local watersheds. From 2005-2008, Conservation International (CI) and partners ASOS and MATEZA helped families construct more than 2,900 latrines and 2,800 waste pits in more than 30 rural communities. Latrines were designed and built using a very simple model that did not depend on key resources of the forest but rather used resources the villages already had available and used for handicrafts or other purposes. In addition, this activity included an education component that linked the outreach and education messages being delivered at the village level with improvements in environmental health, such as improved sanitation and waste disposal. These improvements helped to reduce drinking water contamination and improve hygiene behavior, thereby reducing the potential spread of water borne illnesses such as diarrhea. The latrines also helped reduce contamination of critical freshwater resources in this critically endangered forest ecosystem.