Urban Water Supply and Sanitation Sector Project (UWSSSP)

The Urban Water Supply and Sanitation Sector Project is a major investment in the quality and reliability of our water supply to our customers in Honiara, Noro, Tulagi and a new water piped supply to customers in Munda and Gizo. Here are some key facts about the project: It will be delivered between 2020–2024.

  • It will upgrade water services to growing urban and peri-urban regions in the Solomons Islands
  • It will upgrade and promote effective, efficient and safe urban sanitation services
  • It will provide programs to encourage better hygiene behaviours in urban areas and informal settlements
  • It will improve Solomon Water’s services to customers

 UWSSSP Documents

If you are a landowner with a question about the project, contact our Lands Management Team:

Phone: 23985 ext 258

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If you are a customer with a general question about the project, contact our Project Team:

Phone: 23985 ext 227

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Solomon Water Achieves Grant/Loan Effectiveness

Solomon Water is pleased to advise that we have finally achieved “effectiveness” for our ADB and World Bank donor financing of USD 52 m. This means funds are now available for us to spend on selected Urban Water Supply and Sanitation Sector Projects (UWSSSP) from our 30 year Strategic Plan.  About USD 60 m of works will be ready to tender for construction in the next 4 or 5 months. There has been a delay with the European Union financing of around USD 20 m but this should become available later this year following which further construction works can be tendered for construction. 

UWSSSP projects include:

  • Kongulai Water treatment plant
  • 3 water storage reservoirs for Honiara
  • Upgrades to provincial water supplies at Tulagi and Noro
  • New water supplies for Gizo and Munda
  • Auki water supply upgrade (currently under construction)
  • Water trunk mains for Honiara
  • Sewer outfalls and pump stations to remove raw sewage from Honiara foreshore and Mataniko River
  • CashWater pre-paid water meters

Many thanks to our ADB and World Bank colleagues for their perseverance in getting this approved. 


Auki Water Upgrade Project

The $22 m Auki Water Supply improvement project is the first project to be undertaken under the Solomon Water UWSSSP project. This project includes a 1 million litre storage tank, new pump station and chlorination (water disinfection) facility. It will allow Solomon Water considerably more operational flexibility and security of supply.  The project completion has been delayed due to COVID-19 travel restrictions and is now expected to be completed in October 2020.


Major Milestone for the Proposed Kongulai Water Treatment Plant

Solomon Water is excited to announce the completion of the design for the Kongulai Water Treatment Plant. This 15 million litres per day plant is to be of conventional design including flocculation, clarification, filtration and disinfection of the water. This type of installation on this scale is a first for the Solomon Islands and constitutes one of the cornerstone projects of the Urban Water Supply and Sanitation Sector Project which is jointly funded by Solomon Water, Asian Development Bank and the World Bank.

The plant will assist Solomon Water in supplying its Honiara customers with a continuous water supply even during periods of heavy rain which have of recent times caused a number of challenges. It will meet and exceed all World Health Organization drinking water guidelines and will contribute approximately 40% of the demand for Honiara.

Tenders for the SBD 140 m plant are expected to go out soon August 2020 and construction should start subject to lifting of COVID 19 travel restrictions. The project is due for commissioning in the third quarter of 2021.