Integrated Water Resource Management (IWRM) promotes the coordinated development and management of water, land and related resources in order to maximise economic and social welfare (in an equitable manner) without compromising the sustainability of vital ecosystems. This case study focuses on Trinidad and Tobago, a country consisting of two main islands north-east of Venezuela, between 10 and 11.5 degrees north latitude and between 60 and 62 degrees west longitude. It is the most southerly of the Lesser Antilles and experiences a tropical climate with two seasons namely, wet and dry. The major objectives of this project are: -To map water quality information that is, physico-chemical and heavy metal variables for the rivers of Trinidad and Tobago -To look at land use patterns and their effects on the water quality of the rivers of Trinidad and Tobago -To explore how the scientific information can be used to bring about IWRM in Trinidad and Tobago. The report contains the conclusions of the mapping exercise and an analysis of the stakeholders and their interactions in order to enhance the use of science and technology in finding solutions to sustainable development problems.