The Amazon Cooperation Treaty Organization (ACTO) is inviting proposals from a specialized institution or company to conduct an assessment of the current state of groundwater resources of the Amazon Aquifer Systems (AAS).
The consultancy will be carried out within the framework of the project “Towards a better understanding of Amazonian Aquifer Systems for their protection and sustainable management” (GEF ID 11108), executed by ACTO, with the Inter-American Development Bank (IDB) and the United Nations Environment Programme (UNEP) as implementing agencies.
The consultancy aims to provide a state-of-the-art review, assessment and interpretation of the groundwater resources of the Amazon Aquifer Systems, drawing on geological, geophysical, hydrodynamic, hydrochemical and hydrogeological studies, among other related studies. The review will include peer-reviewed publications, gray literature, and national and regional data and information in order to establish a sound scientific and technical basis for the characterization of the AAS, identify knowledge and monitoring gaps, and define research and monitoring priorities.
The main areas of work include the physical characterization of the AAS; surface-groundwater interactions, including atmospheric and land-surface processes under climate change conditions; the assessment of existing ground-based and remote-sensing monitoring efforts; and the analysis of groundwater processes at the scale of the project’s pilot sites.
The consultancy will be carried out remotely, in coordination with the Project Coordination Unit (PCU). Travel, in-person consultations or validation workshops may be required only when agreed in advance and reflected in the approved work plan and financial proposal.
The consultancy comprises five products, with implementation extending through Month 9 after contract signature.
Submission of Proposals
Proposals must include at least:
- Resume (CV) or institutional profile, if it is a company;
- Portfolio of relevant works;
- Technical proposal, including methodology, schedule and work approach;
- Economic proposal, including the total amount and breakdown by product;
- Estimated implementation schedule.
Deadline for submission of proposals: October 9, 2026.
Proposals should be sent to: proyectosaa@otca.org.
Interested institutions and companies are encouraged to consult the full Terms of Reference for detailed information on the scope of the consultancy, expected products, evaluation criteria, requirements and conditions for participation.
→ Download: ToR-Output-1.1.1
