Review Feasibility Study and Basic Design hydraulic modelling finalized to verify capacity of existing pumping stations, verify hydraulic calculation for all system and make recommendation on upgrading pumping station capacity; Review the Environmental and Social Management Plan (ESMP) to make recommendations for ESMP mitigation measures including Environmental, Social, Health and Safety (ESHS); Carry out geotechnical, topographical survey; Detail Design of the flooding protection, drainage, sewer and tertiary pipe systems, related pumping station, upgrade of WWTP.