WHY THIS SERVICE?

In today’s drying climate and increasing demand for water, more sophisticated methods of managing water resources are becoming necessary.

Managed Aquifer Recharge (MAR) involves the controlled recharge of surface runoff or treated waste water into an aquifer, and the storage of that water for future use or environmental beneficiation.  

Recharge can occur via an infiltration basin or gallery, or via an injection bore.  The storage may be seasonal, or to secure a water supply well into the future.

Reduce, Reuse and Recycle are as important in water as any other commodity.

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A SERVICE OFFERED FROM START TO FINISH

Our Experience

Rockwater has been a leader in Managed Aquifer Recharge since the Water Corporation’s Jandakot injection trial in 2000.  Since then, we have been involved in over ten MAR projects including:

  • the injection and recovery of 230 ML/annum of storm water at Hartfield Park;
  • the infiltration and recovery of 1,135 ML/annum of partially treated waste-water at North Mandurah; 
  • the injection and recovery of 28,000 ML/annum of highly treated waste-water as part of the Perth Groundwater Replenishment Scheme. 

A major limiting factor of MAR is the clogging of injection bores by suspended solids, air entrainment, biological fouling or chemical precipitates.

Rockwater has developed extensive expertise in the reduction of clogging using particulate- and screen-based filters.  We also have extensive expertise in the remediation of clogged bores by mechanical and chemical treatments, and the implementation of automated, self-cleaning pumping systems.

FIELD PROCEDURES
  • Geophysical surveys
  • Nuclear magnetic resonance surveys
  • Drilling and bore construction (mud-rotary, sonic)
  • Formation testing and sampling
  • Test-pumping
  • Injection testing
  • Down-hole CCTV surveys
  • Clogging assessments
  • Water quality sampling

OFFICE PROCEDURES & OUTCOMES

  • Feasibility studies
  • Locating suitable aquifers for water injection
  • Risk assessments according to National MAR Guidelines
  • Groundwater flow and geochemical modelling
  • Design of injection bores
  • Design of injection infrastructure and monitoring systems
  • Technical advice in the design of MAR pilot schemes and trials
  • Water-sampling and evaluation of water chemistry
  • Injection testing and data assessment
  • Clogging assessments
  • Performance and compliance reporting

Projects in Managed Aquifer Recharge

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