Environmental Safeguard Specialist City-Wide Inclusive Sanitation Concept Design and Storm Water Drainage System for Caxito and Ondjiva Towns

Environmental Safeguard Specialist City-Wide Inclusive Sanitation Concept Design and Storm Water Drainage System for Caxito and Ondjiva Towns

Based on lessons learned from the previous Project ISSUWSSSD, the effective discharge of storm water through drains and waterways, is affected by clogging due to waste and silt. As a result, many areas are affected by flooding and water logging. The floods usually occur during the rainy seasons from October to May of each year, causing substantial human and material loss over the years. The floods also often result in the collection of numerous pockets of heavily contaminated and bacteria laden standing water within the affected communities which are mostly populated by the poor. These pockets become perfect breeding areas for mosquitoes and germs causing water borne diseases. As a result, wastewater stagnation is common sight in the areas accompanied by a pungent smell, a threat for epidemic diseases such as cholera and typhoid.

The Project therefore intends to apply part of the proceeds of the financing received from the ADB to procure Consultancy Services for the “City-Wide Inclusive Sanitation Concept Design and Storm Water Drainage System for Caxito and Ondjiva Towns.

Furthermore, the definition of a Centrality in Angola refers to a newly developed urban area, usually built from scratch, designed to relieve pressure on traditional city centres and to provide the population with access to housing, services, and modern infrastructure.

It is a self-contained or semi-autonomous urban zone, featuring residential buildings (mainly apartment blocks), schools, healthcare centres, markets, public transport, and other essential services — all integrated into a broader urban development strategy.

This section provides a brief background, describing the existing water and sanitation infrastructure in the cities under the study.

1.1.                   Caxito

The town of Caxito is the capital of the province of Bengo, with a population of approximately 129,900 inhabitants as of 2025.

The city's water supply system is from the Mabubas dam, and processed at the WTP with a treatment capacity of 530 m³/h. The wastewater collection network is partially constructed. In 2014, a WWTP with a treatment capacity of 1600 m³/h was built. However, this WWTP never came into operation because the sewerage network was not completed.

With the construction of the Bucula Centrality, a macrophyte WWTP with a treatment capacity of 1084 m³/day was built.

1.2.                   Ondjiva

The town of Ondjiva is the capital of the province of Cunene, with a population of approximately 165,140 inhabitants as of 2025.

The water supply system draws water from a point on the Xangongo river, and has a water treatment plant with a treatment capacity of 1015 m³/h.

The wastewater collection and treatment system, as well as the faecal sludge transportation and treatment service, is not available in the city.

The only existing wastewater collection and treatment network is in the Ekuma centrality, with the WWTP having a treatment capacity of 887 m³/day.

2.    Objectives of the Service:

 

The objectives of the services are:

1.     Preparation of the Concept Design for sanitation solution for sewerage, wastewater and faecal sludge service chain and for storm water drainage System for Caxito and Ondjiva towns. This should take into account the study findings and to consider the integration of the existing infrastructure. This study will involve data collection, feasibility studies and willingness to pay assessment, concept design and the preparation of all bidding documents for procuring services for works, consultancy and goods.

2.     Carry Out detailed technical and financial assessment of the existing WWTP and the partially constructed sewerage lines, identifying the most feasible and cost-effective pathways to bring them into operation and integrate them into the new sustainable town-inclusive sanitation project.

Carry-out Environmental and Social Impact Assessment Study (ESIA) for the construction of each Concept design.

A copy of Tors will be shared with selected Experts 

Table 2– Key Personnel Minimum Qualification Requirements.

Position                Experience

K8: Environmental Safeguard Specialist

a) Degree in Environmental /Civil//Sanitary Engineering, post-graduate Degree in Environmental/Civil//Sanitary Engineering will be an added advantage.

b) At least 8 years in water and/or sanitation projects.

c) Working Experience as Environmental Engineer in at least 3 Similar Projects among which at least one project financed by International Financier.  

d) At least Three (3) Years of working experience in the Sub-Saharan African countries; working experience in Angola will be a plus.

e) Should possess good working communication skills in Portuguese and English.