Rockwater Projects

Managed Aquifer Recharge

Representative Projects

Water Corporation: Beenyup Groundwater Replenishment Project

The Water Corporation describes groundwater replenishment as "an innovative concept where treated wastewater is further treated to drinking water standards and recharged into groundwater supplies. The water is then stored and taken out some time later for further treatment and supply to a drinking water system".

 

In August 2013, the Western Australian government announced groundwater replenishment will become the next new climate independent water source for Perth. Rockwater is proud to have been closely involved with this project since its inception in 2009, providing groundwater consulting services for technical aspects such as: site evaluation and characterisation; bore installation and testing; and data assessment and reporting, as well as acting as expert Hydrogeological Consultants on the Technical Reference Group overseeing the groundwater aspects of the project.

 

A successful Groundwater Replenishment Trial was run for three years and over 3 billion litres of recycled water was recharged to the confined Leederville aquifer by July 2013. The trial conclusively established this innovative technique as a highly viable option for supplementing drinking water supplies in Perth and has been fully endorsed by the relevant regulators.The Water Corporation describes groundwater replenishment as “an innovative concept where treated wastewater is further treated to drinking water standards and recharged into groundwater supplies.  The water is then stored and taken out some time later for further treatment and supply to a drinking water system”. 

 

Water Corporation: Mirrabooka/Jandakot Aquifer Storage and Recovery Projects

These large scale Aquifer Storage and Recovery (ASR) trials were the direct predecessors to the Beenyup Groundwater Replenishment Trial. Commencing in 2000, the technical feasibility of injecting large volumes (2 to 7.5 ML/d) of potable water into Perth's confined aquifer systems was rigorously tested using advanced technology and incorporating the research skills of scientists from CSIRO and Curtin University.

 

Rockwater was the sole hydrogeological contractor for these projects, providing technical supervision, data assessment and expert review of all aspects of the investigations including site feasibility, aquifer response, clogging control and changes to water quality.

 

Shire of Kalamunda: Hartfield Park Water Proofing Project

Due to the growing demand for water for irrigation, the Shire of Kalamunda is exploring potential new sources of water for Hartfield Park that will be sustainable in the long-term. They are currently investigating the feasibility of using storm-water from the Water Corporation's Woodlupine main drain as a source for MAR during the winter months.

 

Rockwater was commissioned to conduct a viability study, which included on-site drilling, aquifer testing and numerical groundwater modelling. A detailed maximal and residual risk assessment process was utilised, as per the National MAR guidelines, to identify potential risks and appropriate preventative measures for the establishment of a MAR system at this site. The study concluded that the risk could be adequately managed by ultra-filtration, appropriate bore selection, site access controls and full recovery of injected water.

 

Other  MAR projects:

  • Edith Cowan University - Hydrothermal Air Conditioning Project

  • St. Hildas Anglican School for Girls – Geothermal Water Supply Project

  • Town of Claremont Aquatic Centre

  • Christ Church Grammar School

  • Mines and Resources Australia - White Foil Project

  • Australian Mines Ltd - Blair Nickel Project

 

 

Enquire for more info now