Gambia Electricity Restoration and Modernization Project: Feasibility study for treatment Plant and rehabilitation of storage Tanks

Project ID: P163568

Project Title: Gambia Electricity Restoration and Modernization Project

Bid/Contract Reference No: GM-NAWEC-191767-CS-CQS

Scope of Contract: Feasibility study for treatment Plant and rehabilitation of storage Tanks

Under the supervision of the PIU Coordinator, the Engineering Firm shall carry out the following tasks:

Task 1- Analysis of water quality and treatment plant operations

• Provide technical expertise to assess the existing conditions and operational process of the Gunjur Water Treatment Plant (WTP), in an effort to improve efficiency and quality.
• Based on a review of World Health Organization, US Environmental Protection Agency and other similar industry-specific regulatory agencies’ standards for potable water, develop pertinent water quality goals for the Gunjur WTP.
• Conduct plant walkthroughs, interview plant operations staff, perform condition assessment and hydraulic analysis to identify performance limiting factors (PLFs). Develop recommendations to address PLFs. Recommendations shall cover operational changes and capital improvements to achieve the desired plant capacity and performance reliability.
• Perform alternatives analysis with advantages and disadvantages, benefit-cost analysis for each of major capital improvement identified to address the plant limitations. Summarize the recommendations from the alternatives analysis as part of a Feasibility Study (FS). Include construction cost estimates for the recommended alternatives as part of the FS.
• Provide recommendations for implementation of a Supervisory Control and Data Acquisition (SCADA) system to control the different components of the plant and monitor and control the plant operations remotely.
• Prepare construction plans, specifications, and documents specific to the project’s needs, to include recommendations for improvements, the addition of chemical feeds, changes to chemical treatment, modifications of treatment processes, with and options based on the client’s needs, safety, economics, and life expectancy of the project. These to include:bills of quantities, technical specifications, technical designs, cost estimates
• Develop technical parts, including Employer’s Requirements, for the bidding documents for goods, works and services for the improvements to the Water Treatment Plant under Component 4 (iv) of the project.
• Incorporate a work plan that stems from successful regional and international experiences on similar projects.
• Participate in the analysis of bids and contract negotiations with bidders and assessment of contractors’ capacities.
• Be available for technical support and to address any questions and prepare response to bidders’ requests for clarifications during the bidding process.
• Make staff available to participate in meetings, in person or via teleconferences, with the PIU staff and the World Bank Task Team about project status and other project-related matters.
• Provide water quality report of the existing condition as a baseline or reference and to justify recommendations of new treatment process

Task 2- Inspection and Assessment of Elevated Water Storage Tanks

• Provide technical expertise to assess the conditions of existing water storage tanks, both for coatings performance, corrosion conditions, and structural integrity.
• Conduct investigations and assessments of existing conditions by visual inspection, material testing, measurement evaluation of both the structural integrity and coatings performance of water storage tanks and assess serviceability of the tank, in accordance with acceptable industry standards and regulations (minimum compliance with the United States National Association of Corrosion Engineers-NACE and the American Society for Testing Materials-ASTM requirements or equivalent).
• Prepare construction plans, specifications, and documents specific to the project’s needs, to include protective coating recommendations and options based on the client’s needs, safety, economics, and life expectancy of the project. These to include:bills of quantities, technical specifications, technical designs, cost estimates
• Develop technical parts, including Employer’s Requirements, for the bidding documents for goods, works and services for the rehabilitation of water
• storage tanks related activities under Component 4 (iii) of the project (see annex). The bidding documents shall be based on the World Bank’s Standard
• Procurement Documents for Design, supply and installation of Plant; and for Supply of Goods.
• Incorporate a work plan that stems from successful regional and international experiences on similar projects.
• Participate in the analysis of bids and contract negotiations with bidders and assessment of contractors’ capacities.
• Be available for technical support and addressing any questions and prepare response to bidders’ requests for clarifications during the bidding process.
• Make staff available to participate in meetings, in person or via teleconferences, with the PIU staff and the World Bank Task Team about project status and other project-related matters.

Duration of Contract: 18 Month(s)