Table showing investment scenarios considered for World Bank intervention expansions.

Each of the scenarios pertains to scenarios considered for restructuring the World Bank financing that was discussed in April 2019. Scenario 1 pertained to a reduced scope of the investments to cover Onsite Sanitation (OSS) in WB-targeted areas and the sewer network planned for the Year 1 catchment of the project. Scenario 2 referred to Scenario 1 plus the sewer network planned for Years 2–5 of the project (Kanyama and a secondary catchment area called CSE-20). Scenario 3A covered a slightly higher proportion of the Years 2–5 project areas. Scenario 3B was 3A plus improving water quality by addressing water and sanitation-related complaints on the existing network. Scenario 3C was 3A plus improving water access via the extension of the existing network with no upgrades to cover the whole population in the top 10 ranked high wards for piped on-premises access. Scenario 4A involved covering the whole of the years 2–5 areas for the sewer network. Scenario 4B was 4A plus improving water via addressing e-coli in the existing network + eliminating water and sanitation-related complaints. Scenario 4C was 4A plus improving water access via the extension of the water network in its current state in the top 10 ranked high-impact target wards for piped on-premises access. 90 million USD in additional financing.