Hydrology

Groundwater Modelling

Aquifer Testing

Licensing

Groundwater Modelling

Groundwater Modelling Groundwater monitoring and modelling programs are primarily needed to assess the current state of groundwater resources in regards to water quality, Average Annual Maximum Groundwater Levels (AAMGL) and direction of flow for urban and industrial developments.  Such investigations are conducted by Bioscience as part of an Urban Water Management Strategy (particularly in areas were the watertable is within 1.5m of the natural surface) or during Wetland Investigations in regards quantifying wetland boundaries.

Depending on the specific site requirements, groundwater is usually monitored for up to 2 years, before sufficient data is available to accurately model using appropriate analytical and/or numerical groundwater modelling software such as Modflow®, HydroGeoAnalyst 2009®, and AquafierTest 4.2®.

Aquifer Testing

With water in rivers, wetlands and aquifers becoming less freely available for human use, regulation and licensing of remaining resources becomes more stringent. Our background in agriculture and horticulture, and our knowledge of water quality and hydrology and water use efficiency means we are ideally placed as an effective interface between users and regulators.

We organise and conduct aquifer pumping tests to evaluate and characterise bores and aquifers in order to determine any impacts on other users or the environment, and to determine sustainable yields. Aquifer pumping test are among the most expensive field tests in hydrogeology; it is therefore crucial to seek the advice of experienced professionals.

Bioscience conducts aquifer tests in accordance with the Australian Standard 2368 “Test pumping of Water Wells”.  The data generated from these aquifer tests are then used to generate groundwater models and/or evaluate the efficiency of a proposed production well, using various software programs such as Modflow®, HydroGeoAnalyst 2009®, and AquaferTest 4.2®.  Hydrological Reports, produced to the requirements of the Department of Water then contribute to the important accumulating archives of the state water resources.

Licensing

Groundwater Licences are required for all commercial users of groundwater and artesian groundwater wells in Western Australia. This requires obtaining exploration licenses and abstraction licenses. The amount of detail required by the Department of Water depends on location and on the volume of water required.

Bioscience can assist with the application of a groundwater licences under section 5C of Right in Water and Irrigation Act 1914, from an initial desktop investigation, supervision of bore drilling and equipping, then testing bores. Data and logs are reported in a detailed Hydrogeological Assessment and associated Operating and Management Strategy to the requirements of the Department of Water.

Annual monitoring, analysis and reporting services are provided to many of the state’s largest water users.

Hydrological services at a glance

Preparation of Local Water Management Strategies
Preparation of Urban Water Management Strategies
Preparation of H1 / H2 / H3 hydrogeological assessments
Groundwater resource assessment
Aquifer identification and characterisation
Groundwater level monitoring
Monitoring reviews
Hydrogeological modelling
Supervision of drilling, well construction and testing
Application for groundwater licenses
Reporting to regulators

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