Residents across significant portions of the Northern Territory have been issued a critical warning to avoid consuming tap water directly after severe flooding at a major dam prompted an urgent public health alert. NT Health has officially declared a boil water notice for Greater Darwin, Palmerston, and the surrounding regions due to the inundation of the Darwin River Dam.
Essential Water Use Guidelines Issued
Authorities are advising all affected residents to utilise either cooled boiled water or bottled water for several essential activities. This directive specifically applies to drinking, cooking, preparing infant formula, and brushing teeth. Furthermore, residents are being asked to conserve water strictly for these vital purposes only.
Power and Water Corporation's Conservation Plea
The Power and Water Corporation (PWC), which is managing the crisis, has reiterated the paramount importance of water conservation during this emergency. 'While we work on fixing the pump station at the dam, we're asking Darwin residents to reduce their water use,' a PWC spokesperson stated.
'Simple steps such as taking shorter showers, turning off taps promptly, and switching off garden irrigation systems can all contribute significantly to conserving our limited supply. We have a dedicated team of experts working tirelessly to repair the dam as quickly and safely as possible, and we extend our gratitude to Territorians for pulling together during this challenging time.'
An Unprecedented Flooding Event
The dam was forced to cease operations at 4:30 pm on Monday after substantial flooding overwhelmed the pump station and its associated equipment. PWC has described the situation as 'unprecedented,' noting they have never encountered such a high volume of water in the dam before.
'Our absolute priority is to restore the pump station and the connected equipment as swiftly as safety allows. We are actively investigating the possibility of operating the dam using generators as an interim measure,' the corporation added in an official statement.
Heavy Rainfall Pushes Dam Beyond Capacity
Already nearing its capacity due to an exceptionally heavy wet season, the Darwin River Dam received intense rainfall over the past 24 hours, pushing it to over 110 per cent capacity. PWC confirmed that the dam's spillway has been overflowing continuously since the new year began because of the sustained wet conditions.
'Today's flash flooding, combined with further rainfall, forced the dam beyond 110 per cent capacity. However, we can confirm that the structural integrity of the Darwin River Dam wall itself has not been compromised by this event,' the statement clarified.
Interim Measures to Maintain Supply
PWC has announced it is implementing several steps to help maintain water supply while the primary dam remains offline. 'To partially meet the ongoing demand, we will be activating the borefields at McMinns and Howard East,' they explained.
Nevertheless, officials cautioned that these alternative sources cannot fully compensate for the shortfall created by the dam being out of service.
Ongoing Engineering Efforts
PWC's acting chief executive, John Pease, provided an update during an interview with ABC Radio Darwin, revealing that engineers worked throughout Monday night to address the pump issues. 'The protection systems we had in place functioned as intended,' Mr. Pease stated.
'They automatically shut off the pumps to prevent catastrophic damage. However, this means the pumps will remain offline until the floodwaters recede sufficiently, allowing us to implement a temporary solution.'
Alert to Remain Until Resolution
NT Health has confirmed that the boil water alert will only be lifted once PWC provides formal confirmation that the underlying issue at the Darwin River Dam has been completely and satisfactorily resolved. Residents are urged to continue following all official advisories until further notice.
