Construction of 11 Septic systems with Septic Fields for the APOCEB Project

The "Adaptation of Coastal Populations and Blue Economy" (APOCEB) project targets the coastal communities of the Cacheu Park in Guinea-Bissau, the Tristao Islands in the Republic of Guinea, the Niumi National Park in the Gambia and the Petits Kassa Islands in Senegal. The project aims to improve the economic, social and environmental development of these communities in a sustainable manner. It also intends to improve the living, working and health conditions of its inhabitants and the resilience of populations most vulnerable to climate change.  


CGI and its local partners are planning the construction of 11 septic tanks with leaching fields. The toilets and changing rooms for the processing units will be connected to an autonomous treatment system consisting of a collector manhole, a first separation tank (decanter), an aerobic digester, a shellfish filtration tank (pre-filter) and a leaching field (infiltration by spreading). 

The sizing was carried out by the company Ultraplast, which specializes in this type of installation, and the installation will be carried out by a specialized technician. For each processing unit, two leach fields will be built in parallel. Their capacity will be 3000 liters and the volume of wastewater will be between 500 and 1000 L at peak use. 

The water transferred to the digester remains there long enough to allow the aerobic digestion and sedimentation of organic matter. The supernatant is then pre-filtered to remove any remaining suspended solids and the water is conveyed to the land application field for final treatment. 


Latest update

December 8th, 2023 – The public comment period on the project is closed. Global Affairs Canada is considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
1 Notice of Intent to Make a Determination - Start of Public Comment Period - October 30, 2023


Global Affairs Canada
Ingrid Khouzam, Environment Specialist
Global Affairs Canada
Partnerships for Development Innovation Branch
125 Sussex Dr
Ottawa, Ontario K1A 0G2

  • Location

    • Coubampor manjaco (Guinee-Bissau) (Outside Canada)
    • Djinack kajata (Gambia) (Outside Canada)
    • Eticoga (Guinee-Bissau) (Outside Canada)
    • Etimbato (Guinee-Bissau) (Outside Canada)
    • Haère (Casamance) (Outside Canada)
    • Hitou (Casamance) (Outside Canada)
    • Kabot (République de Guinee) (Outside Canada)
    • Kadignet (République de Guinée) (Outside Canada)
    • Kapkein (République de Guinee) (Outside Canada)
    • Katfoura (République de Guinee) (Outside Canada)
    • Mbankam (Gambia) (Outside Canada)
  • Nature of Activity

    • Water Management
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Cégep de la Gaspésie et des îles
  • Authorities

    • Global Affairs Canada
  • Assessment Type

    Project outside of Canada
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

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