We provide a wide range of solutions for designing your effluent disposal system to the highest standards. 

Today, wastewater collection and treatment has become a critical social and environmental issue. It is only if the environmental contamination due to the discharge of water pollutants and septic waste are prevented or minimised that we are likely to have a clean environment. 

One practical way of controlling the harmful discharge of effluents to the environment is by constructing water treatment plants. In turn, we can use this treated water for agriculture, landscaping, and industrial use. Developing customised effluent disposal designs for different environmental, economic, and operational boundary conditions is one of Australian Soil Investigations fortes. 

On site Effluent Reports are required for properties in non-sewered areas for the disposal of wastewater from the building. A report and design are required to show where the wastewater will be disposed of within the allotment (Disposal Area or Land Application Area). It is required under the QLD Plumbing and Wastewater code and the Australian Standards (AS1547-2012) to find the best and safest solution to dispose of wastewater within the allotment. ASI provides Onsite Effluent reports for new construction or existing systems that have failed and require upgrading.

There are two ways that effluent is treated on site. Primary treatment (traditional septic tanks) or through a treatment plant (usually Advanced Secondary Treatment). ASI can provide designs for all systems depending on the site constraints.

The wastewater from the treatment systems can be disposed of in a number of different ways. If using a traditional septic tank Absorption Beds are required. An on site treatment plant can use a number of different options to dispose of the wastewater. Either through sprinklers, sub-surface drip irrigation or absorption beds.

ASI evaluates your site and soil to give you the best options available to dispose of the wastewater within the allotment. We then carry out in-situ testing (Percolation testing and Borelogging) to determine the location and size of the disposal area.

The location of the disposal area is determined by setback distances to buildings and waterways. ASI works out best practice options and then works with the owner to achieve the best outcome.

ASI then produces a report and design to show where the wastewater is to be disposed of. This is then submitted to council for approval. It will also be utilised by the installer for the construction of the disposal area.

ASI carries out Effluent assessments throughout Queensland and is familiar with the local council requirements and guidelines. Councils we are registered with include Sunshine Coast Council, Gympie, Fraser Coast, Bundaberg, Gladstone, North Burnett, South Burnett, Western Downs, Southern Downs, Goondiwindi, Scenic Rim, Gold Coast Redland Bay, Moreton Bay, Somerset, Lockyer Valley, Toowoomba, Noosa and Brisbane city as well as Ipswich.

Although ASI does not recommend any particular brand of system we can discuss all the systems and help find the most suitable system for your site.

No project is too small or complex for us. We have a team of extremely qualified designers who can design environmentally sound effluent treatment systems to purposely suit the requirements of the clients, government, industry, and the community. Our systematic approach to every wastewater treatment task we undertake ensures you get effective and efficient project delivery without surprises, schedule delays, and cost overruns.