Watersheds

Watersheds of Trinidad & Tobago

Did you know that we all live in a watershed? No matter where you live, work or play, you are in a watershed! You might be surprised to know that watersheds are more than just water.

“A watershed is an area of land that water flows across or through on its way to a particular water body, such as a stream, river, wetland or coast.”

Think of it as the land upon which rain (precipitation) falls and flows to a common, watery place.

Watersheds come in all shapes and sizes. They can be very large, or so small that they only encompass a small stream or wetland area. They cross counties, provinces and national boundaries. They can be “open systems” — those that eventually drain into an ocean or “closed systems” — where water can only escape through evaporation or by seeping into the earth.

Why Are Watersheds Important?
Watersheds provide:

Important habitat for both aquatic and terrestrial wildlife
People and animals with fresh drinking water
Support to industries
Key recreational sites (‘river limes’)
Trees and other vegetation around the watershed also have the significant roles of slowing runoff, protecting land from erosion, reducing water temperatures and can even act as filters and clean water.

Pollutants within watersheds can harm the environment, wildlife and habitat. Pollutants can also negatively impact the economy and jobs, and degrade the health and wellness of humans.

Under the Adopt a River programme, communities are training in water quality testing in order that they learn about the health and status of their rivers and watersheds. For more information on this, please check out our Water Warriors page.

Watershed Maps

Trinidad and Tobago is subdivided into fourteen (14) hydrometric units, nine (9) in Trinidad and five (5) in Tobago. Trinidad is further divided into fifty-four (54) watersheds and Tobago sub-divided into fifteen (15) watersheds (Maps 1 and 2).

Click on each map below to view larger.

Affiliated Agencies

Water And Sewerage Authority

The Adopt a River Programme is affiliated with the Water Resources Agency, the Water and Sewerage Authority and the Green Fund

WASA Website
Water Resources Agency

As the regulatory body responsible for the watersheds of Trinidad and Tobago, the WRA works closely with us in fulfilling our mandate of watershed improvement

WRA Website
Green Fund

It is a grant facility that is available to eligible organizations who wish to engage in environmental activities. We are a Green Fund project.

Green Fund Website