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Growing population predicted to impact SIWA’s water supply and wastewater system

IT is predicted in 30 years the increased population of Solomon Islands will have significant impact on current water supply and wastewater system.

In compiling Solomon Water’s report for a 30-year strategic plan, Honiara’s projected population of 105,000 by 2017 will have significant impact to water supply and wastewater system.

Solomon Water’s General Manager, Mr Ian Gooden said the population served by Solomon Water in Honiara and surrounding villages is projected to increase to approximately 295,000 by 2047.

Mr Gooden said the increase is driven by migration from rural communities to urban areas, and provision of backlog services to existing communities.

Currently Solomon Water is servicing 58,000 people in Honiara and Guadalcanal’s surrounding areas – this is proposed to double in later years.

Regarding the growing number, Mr Gooden said it will have impact on increasing health, environmental and water quality impacts of wastewater discharge along with the need for additional water sources due to increase water supply demand.

He adds this also includes the need to extend reticulation systems and improve capacity of transfer systems.

“Through the 30-year strategic plan, Solomon Water adopted a target to achieve 95 percent coverage of properties within its service areas with access to reticulate water supply network,” GM Gooden said.

Mr Gooden said before reaching 2047 they are targeting 30 percent coverage of Honiara’s properties access to reticulation wastewater network and majority of non-residential properties.

“The SW water and sewer systems have been identified for major upgrades in response to population growth and to ensure that the health outcomes identified in the SDGs and National Development Strategy are met,” Mr Gooden said.

However, working towards this, Mr Gooden said it requires significant investment in new and improve water and sewer system.

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