This article is rated B-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Costa Rica Low‑importance This article is within the scope of WikiProject Costa Rica, a collaborative effort to improve the coverage of Costa Rica on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Costa RicaWikipedia:WikiProject Costa RicaTemplate:WikiProject Costa RicaCosta Rica articles Low This article has been rated as Low-importance on the importance scale. Sanitation Low‑importance This article is within the scope of WikiProject Sanitation, a collaborative effort to improve the coverage of Sanitation on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.SanitationWikipedia:WikiProject SanitationTemplate:WikiProject Sanitationsanitation articles Low This article has been rated as Low-importance on the project's importance scale. Water Low‑importance This article is within the scope of WikiProject Water, a collaborative effort to improve the coverage of Water supply-related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.WaterWikipedia:WikiProject WaterTemplate:WikiProject WaterWater articles Low This article has been rated as Low-importance on the project's importance scale.

International agreements:

• Joint treaty for the environmental management and sustainable development of the waters in the basins on the Atlantic side of the country.
• With Panama is shared the Sixaola River Watershed whose flow rate contributed by the basin of Costa Rica is estimated at 0.5 km3/year.
• With Nicaragua and the San Juan River and Nicaragua Lake