2024-12-23

RFQ: Rainwater harvesting and treatment system

APPENDIX A

SCOPE OF WORK

  1. BACKGROUND & CONTEXT

Dien Bien Province, located in Northwest Vietnam, faces severe climate-related challenges, including recurrent droughts, floods, and landslides. These factors increase vulnerabilities for its largely ethnic minority and impoverished population. Access to safe and reliable water sources is a persistent issue, as communities often rely on unstable and contaminated sources, particularly during the rainy season. The mountainous terrain further complicates efforts to implement sustainable water solutions.

In 2023, Dien Bien’s poverty rate was estimated at 36.97%, with some districts, such as Dien Bien Dong, Tuan Giao, and Tua Chua, experiencing even higher poverty rates. Over 90% of the population in the areas are from ethnic groups such as the Mong, Thai, Dao, and Kho Mu. Natural disasters, combined with a decrease in both surface and underground water sources in highland communes, contribute to water scarcity, impacting daily consumption and livelihoods. According to a 2020 UNICEF report, 84.9% of rural households in Dien Bien had access to a hygienic water source.

Schools and communities in the mountainous regions of Dien Bien rely on multiple water sources, including rainwater, dug wells, boreholes, and streams, for both drinking and domestic use throughout the year. This project, a collaboration between UNICEF and Gravity Water under the Dien Bien Rural Water Resilience initiative, seeks to scale up access to safe and sustainable WASH services by providing rainwater harvesting and water treatment systems. The project targets 50 schools and 10 household cluster projects, improving water quality for over 11,000 students, 680 teachers and administrators, and 50 households facing water insecurity. Additionally, training will be provided to 100 government staff, including members of the communal People’s Committee and the Department of Education and Training, on water system operation and maintenance.

Gravity Water is seeking a firm to do the rainwater harvesting and treatment technology to ensure ease of use, maintenance, and sustainability for rural communities. This initiative will enhance community resilience and water security, addressing water scarcity and fostering long-term sustainability.

  1. OBJECTIVES

The objective of this project is to provide 60 rainwater harvesting and water treatment systems for schools and household clusters in Dien Bien (50 at schools and 10 in household clusters).

  1. REQUIREMENTS

Each system must include the following components:

  • Rainwater Collection System: The existing roofs, gutters, and downpipes can be used, but each downpipe must have a strainer at its inlet. Additional downpipes may need to be installed to connect the existing gutter downpipe to the rainwater collection system. The system must include a leaf filter, a first flush diverter, and a 2,000 L rainwater storage tank.
  • Water Treatment: All collected rainwater must be treated to make it suitable for domestic use. In addition, a drinking water treatment unit must be provided, using a sediment filter, carbon filter, 0.1-micron cartridge filter, and ultraviolet sterilizer with a rated flow rate of 7.5 L/min.
  • Pumping System: A pump must be installed to move water from the rainwater tank to the existing elevated storage tank. HDPE pipes and fittings to connect the rainwater tank to the elevated tank must also be included.
  • Water Meters: Water meters must be installed to measure the total rainwater captured and the total drinking water consumed.
  • Automatic Control System: The system must operate automatically, prioritizing rainwater for domestic and drinking water needs. When rainwater is unavailable, the system should automatically switch to an auxiliary water source. All electrical components of the control system must be installed in a control box.
  • Equipment Housing: All pumps, water treatment units, water meters, and electrical components must be housed in a weatherproof shelter for protection.
  • Long-Term Maintenance: The system must include a minimum 10-year warranty, with free filter replacement and maintenance included.

The offeror must submit a quote that adheres to these design requirements and follows the budget template provided in Appendix B. The selected contractor will work closely with Gravity Water in Vietnam throughout the design, testing, modification, and installation phases.

  1. TARGET AUDIENCE

The primary beneficiaries are:

  • 50 schools and 10 household clusters (serving approximately 11,000 students, 680 school staff, and 250 household members) in Dien Bien.
  1. ACTIVITIES AND DELIVERABLES

The selected firm will be responsible for the following deliverables:

  1. Project work plan and approval:
    • Develop and submit a comprehensive work plan for approval by Gravity Water in Vietnam.
  2. Coordination and technical support:
    • Participate in technical meetings with Gravity Water as needed throughout the project.
  3. Installation:
    • Install rainwater harvesting and water treatment systems at 60 sites across four districts in Dien Bien Province, ensuring each system meets the specified design requirements.
  4. User training and documentation:
    • Develop a user-friendly manual and conduct a training course for intended users, ensuring they understand system operation and maintenance.
  5. System handover:
    • Officially hand over the installed systems to Gravity Water in Vietnam upon project completion.
  6. Project reporting:
    • Prepare and submit a detailed work report upon project completion and system handover.
  7. Long-term maintenance and support:
    • Provide maintenance and technical support for system operations for a period of 10 years post-handover.
  1. PROPOSAL SUBMISSION AND EVALUATION

Required submission documents:

  1. Bid letter.
  2. Technical approach/ proposal to meet the objectives in the Scope of Work (SOW)
  3. Summary of relevant experience, including a list of current and previous related projects
  4. Supporting documents to demonstrate the company’s capabilities;
  5. Price quotation (Budget as per Appendix B).

Evaluation Process: All submitted quotations will be assessed according to the Proposal Evaluation Criteria detailed in Appendix C. The Evaluation Committee will review all proposals, and only shortlisted candidates will be contacted for further steps. Please note that proposals and accompanying documents will not be returned to candidates who are not selected.

 

Submission Instructions: All documents must be submitted via email to [email protected] no later than 23 December 2024.

 

CLICK HERE FOR APPENDIXES B&C

   Job Details  
Organisation:
Gravity Water
Application deadline:
2024-12-23
Send application to:
Sectors:
'National'