Period: September 2020 - December 2021
Client: United Nations Industrial Development Organization
Involved TAUW Consultants
TAUW has offered support for the development an Environmental Risk Management Programme (ERMP) for the Guanapo Landfill, Trinidad. The services were part of the long-term project ‘Development and implementation of a sustainable management mechanism for POPs in the Caribbean’ implemented by the United Nations Industrial Development Organisation (UNIDO). The project is a pilot for international good practice and knowledge on the implementation of Environmental Risk Management Programmes at non-engineered landfills in developing countries with a tropical climate.
The Guanapo landfill is located between Maturita river and the El Cedro stream at the foothills of the Northern Range in Trinidad, occupying a surface area of approximately 15 hectares. Residential and agricultural land use dominates the immediate vicinity of the landfill. The Guanapo Landfill started as a non-engineered dumpsite and has organically grown to its current size. No lining or other hydrological barriers are present underneath the waste body causing leachate to disperse uncontrolledly into the environment.
To achieve the ultimate aim of reducing the impact of the pollution from the Guanapo Landfill on its environment, TAUW provided the following services:
TAUW completed a detailed site investigation supporting the implementation of containment activities at the Guanapo Landfill. All project activities were completed in direct coordination with the client UNIDO.
For the successful completion of the project, TAUW worked symbiotically with the landfill operator Trinidad and Tobago Solid Waste Management Company Limited (SWMCOL), specifically during the on-site activities. The on-site activities were all completed under the supervision of TAUW.
Furthermore, a strong cooperation was established with the following stakeholders:
The results of current site investigation showed that measures should be taken to reduce the inflow of hypodermic and surface leachate flow to the river to ultimately restore the aquatic ecosystem and prevent human health impacts. The potentially impacted population was made aware of the present contamination and the appropriate use of water from the El Cedro Stream and the Maturita (e.g., correct irrigation and use for recreation or bathing).