septic tank installation
Tips & Advice

Guide: Septic Tanks Mid North Coast

20 May 2024

Septic Tanks Mid North Coast

In the Mid North Coast region of NSW, including areas like the Port Macquarie-Hastings regions, Kempsey Shire, Nambucca Valley, MidCoast areas, Macleay Valley, and Coffs Harbour and Coffs Coast, septic tanks are essential where municipal sewer services are unavailable.

If you’re considering installing a septic tank system in these Mid North Coast regions of NSW, it’s crucial to understand local regulations and system options. Factors such as soil conditions, tank size, maintenance requirements, and local council regulations play a significant role in the design and installation process.

 

Some things to consider when installing Septic Tanks Mid North Coast include the following:
  1. Soil conditions: The type and quality of soil on your property will affect the design and installation of the septic tank system. A percolation test can be conducted to determine the soil’s ability to absorb water and to choose the required drain field size.
  2. Tank size: The size of the septic tank will depend on the size of the property, the number of occupants, and the expected water usage. A licensed professional can help determine the appropriate size for your needs.
  3. Maintenance requirements: Regular maintenance and pumping of the septic tank are required to ensure the system’s proper functioning. Following the recommended pumping schedule and hiring a licensed septic system maintenance professional to perform the maintenance is essential.
  4. Local regulations: Mid North Coast councils and LGAs (see below for links to all Mid North Coast councils) regulate septic tank system installation and use; it’s essential to check with your local council to ensure your system meets all requirements and obtains the necessary council websites:
  5. Type of system: Several types of septic tank systems are available, including traditional septic systems, which use a septic tank and drain field. Aerobic Treatment Units (ATUs) like AWTS introduce oxygen to enhance waste breakdown through to more advanced systems like Advanced STS and Advanced Membrane Bio-Reactors. Each system has advantages and disadvantages, and it is important to choose the system that best fits your needs and site conditions. If you haven’t already read our Septic Tank Buying Guide, we recommend you do so.

 

When choosing a septic tank system in the Mid North Coast, it is important to consult a licensed professional with experience in installation and maintenance in your local area. They can help you choose the right system for your needs, obtain the necessary permits, and install it properly.

 

Here are some general guidelines for septic tank requirements on the Mid North Coast of NSW

Local councils across the Mid North Coast region, including City of Coffs Harbour (Coffs Harbour, Sawtell, Woolgoolga), Kempsey Shire Council (Kempsey, South West Rocks, Crescent Head), MidCoast Council (Taree, Forster, Tuncurry, Wingham, Gloucester, Harrington), Nambucca Valley Council (Nambucca Heads, Macksville, Bowraville), Port Macquarie-Hastings Council (Port Macquarie, Wauchope, Laurieton), regulate septic system installation. Regulations may vary, but some common requirements include:

 

Some standard regulations that may apply when installing a septic system on the Mid North Coast include the following:

 

  • Approval and permits:  Contact your local Council or the local authority responsible for issuing permits and approvals for septic systems. They will provide you with the necessary guidelines and information on the approval process.

Plans and Specifications Should Include: 

a) Site Plan 

b) Proposed Internal and External Drainage, Tank and Trench Position

c) Trench Design

d) Septic Tank Manufacturers Specifications

e) Certificate of Accreditation from NSW Health Visit the NSW Health website.

  • Site and soil assessments: The local council may require a site and soil assessment before installing a septic system. This may involve testing the soil to determine its ability to absorb water, assessing the site’s slope and drainage, and ensuring adequate space for the system.
  • Minimum setback distances: Ensure that the septic system design complies with the requirements set by your Mid North Coast LGA Council area or relevant authority. This includes considerations for setbacks from buildings, water bodies, property boundaries and soil and groundwater suitability.
  • Application and Permit: Submit a septic system installation permit application to your relevant Mid North Coast Council or relevant authorities. The application typically includes the system design plans, property details, and any other required documentation. Pay any applicable fees.
  • System design and construction:  Engage a professional septic system designer or an environmental consultant to assess the property, soil conditions, and groundwater levels. They will design a septic system that meets the specific requirements of your property and complies with local regulations.
  • Installation: Hire a licensed plumber or septic system installer to install the approved septic system according to the design specifications and any additional requirements specified by the council.
  • Inspections: Arrange for inspections by the applicable Mid North Coast Council or relevant authorities at various stages of the installation process. These inspections ensure that the septic system is being installed correctly and meets the required standards.
  • Maintenance: Once the septic system is installed, it is essential to regularly maintain and service it according to the manufacturer’s recommendations and any requirements set by the council. Regular pump-outs and inspections may be necessary to ensure the system’s proper functioning.

 

Useful Reading:

 

We’ve designed and installed septic tanks throughout the greater Mid North Coast regions.

 

For over 30 years, we have provided reliable Sewage Treatment Systems, Septic Tanks, Aerated Wastewater Treatment Systems (AWTS), and Advanced Secondary Treatment Systems (STS) for both domestic and commercial installations across NSW. Our Garden Master “Elite” Advanced Secondary Treatment System (STS) is our primary septic tank system for Mid North Coast properties. The Elite is perfect for domestic premises with up to 10 people. It is based on a single concrete septic tank with a 7100L capacity.

 

The Garden Master “Elite” Advanced Secondary Treatment System (STS)

 

residential single septic tank

To learn more about our range of wastewater systems in Mid North Coast, click through to our Systems page.

 

Garden Master provides reliable sewage treatment systems, septic tanks, Aerated Wastewater Treatment Systems (AWTS), and Advanced STS systems for domestic and commercial installations across the Mid North Coast region.

Our systems are designed to meet your property’s specific needs, ensuring efficiency and environmental sustainability. Whether you’re in Coffs Harbour, Sawtell, Woolgoolga, Bellingen, Dorrigo, Urunga, Nambucca Heads, Macksville, Bowraville, Kempsey, South West Rocks, Crescent Head, Port Macquarie, Wauchope, Laurieton, Taree, Forster, Tuncurry, Wingham, Gloucester, Harrington or any other part of the Mid North Coast of NSW, we can help you choose and install the right system for your property.

If you’re unsure what septic system would suit your property on the Coffs Coast, Bellingen Valley and Dorrigo Plateau, Nambucca Valley, Macleay Valley, Hastings River Region, Great Lakes and Manning River, or Barrington Coast Hinterland, check out our article Septic Tank Buying Guide or simply get in touch for some friendly advice.

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Septic Tanks Central Coast
Tips & Advice

Guide: Septic Tanks Central Coast

19 December 2023

Septic Tanks Central Coast

In the Central Coast and Lake Macquarie regions, septic tanks are used where municipal sewer services are unavailable. 

If you are considering installing a wastewater system or septic tank Central Coast or Lake Macquarie, it’s essential to understand the local regulations and requirements, as well as the different types of septic systems that are available.

 

Some things to consider when installing a septic tank system in Central Coast include the following:

 

    1. Soil conditions: The type and quality of soil on your property will affect the design and installation of the septic tank system. A percolation test can be conducted to determine the soil’s ability to absorb water and to determine the size of the drain field that will be required.
    2. Tank size: The size of the septic tank will depend on the size of the property, the number of occupants, and the expected water usage. A licensed professional can help determine the appropriate size for your needs.
    3. Maintenance requirements: Regular maintenance and pumping of the septic tank are required to ensure the system’s proper functioning. Following the recommended pumping schedule and hiring a licensed septic system maintenance professional to perform the maintenance is essential.
    4. Local regulations: Local councils in Lake Macquarie and Central Coast regulate the installation and use of septic tank systems. It is important to check with your local council to ensure your system meets all requirements and obtains the necessary permits.
    5. Type of system: There are several types of septic tank systems available, including traditional septic systems, aerobic treatment systems, and composting toilet systems. Each system has advantages and disadvantages, and choosing the system that best fits your needs and site conditions is important. If you haven’t already read our Septic Tank Buying Guide, we recommend you do.

 

When choosing a septic tank system in Central Coast, it is important to consult a licensed professional with experience in installation and maintenance in your local area. They can help you choose the right system for your needs, obtain the necessary permits, and install it properly.

 

Here are some general guidelines for septic tank requirements on the Central Coast of NSW

Local councils regulate the installation of septic systems in Central Coast, and the specific regulations and requirements can vary depending on the location and soil conditions.

 

Some standard regulations that may apply when installing a septic system on the Central Coast include the following:

 

  • Approval and permits:  Contact the Central Coast Council, Lake Macquaire City Council or the local authority responsible for issuing permits and approvals for septic systems. They will provide you with the necessary guidelines and information on the approval process.

Plans and Specifications Should Include: 

a) Site Plan 

b) Proposed Internal and External Drainage, Tank and Trench Position

c) Trench Design

d) Septic Tank Manufacturers Specifications

e) Certificate of Accreditation from NSW Health Visit the NSW Health website.

  • Site and soil assessments: The local council may require a site and soil assessment before installing a septic system. This may involve testing the soil to determine its ability to absorb water, assessing the site’s slope and drainage, and ensuring adequate space for the system.
  • Minimum setback distances: Ensure that the septic system design complies with the requirements set by the Central Coast Council or relevant authority. This includes considerations for setbacks from buildings, water bodies, property boundaries and soil and groundwater suitability.
  • Application and Permit: Submit a septic system installation permit application to the Central Coast Council or relevant authorities. The application typically includes the system design plans, property details, and any other required documentation. Pay any applicable fees.
  • System design and construction:  Engage a professional septic system designer or an environmental consultant to assess the property, soil conditions, and groundwater levels. They will design a septic system that meets the specific requirements of your property and complies with local regulations.
  • Installation: Hire a licensed plumber or septic system installer to install the approved septic system according to the design specifications and any additional requirements specified by the council.
  • Inspections: Arrange for inspections by the Central Coast Council or relevant authorities at various stages of the installation process. These inspections ensure that the septic system is being installed correctly and meets the required standards.
  • Maintenance: Once the septic system is installed, it is essential to regularly maintain and service it according to the manufacturer’s recommendations and any requirements set by the council. Regular pump-outs and inspections may be necessary to ensure the system’s proper functioning.

 

Useful Reading:

 

We’ve designed and installed septic tanks all throughout the greater Central Coast and Lake Macquarie regions.

 

For over 30 years, we have provided reliable Sewage Treatment Systems, Septic Tanks, Aerated Wastewater Treatment Systems (AWTS) and Advanced Secondary Treatment Systems (STS) for both domestic and commercial installations across the Central Coast. In saying that, our Garden Master “Elite” Advanced Secondary Treatment System (STS) is our primary septic tank system used on Hunter Valley properties. The Elite is perfect for domestic premises with up to 10 people. It is based on a single concrete septic tank with a 7100L capacity.

 

The Garden Master “Elite” Advanced Secondary Treatment System (STS)

 

residential single septic tank

To learn more about our range of wastewater systems in Central Coast and Lake Macquarie, click through to our Systems page.

 

Garden Master provides environmentally friendly Septic Solutions and Subsurface Irrigation services for domestic and commercial properties across the greater Central Coast region, including; Gosford City, Wyong Shire, The Entrance, Budgewoi, Umina Beach, Woy Woy, Upper and Lower Mangrove, Somersby, Ourimbah, Jiliby, Wyee, Morisset, Corranbong and Lake Macquarie.

 

If you’re unsure what septic system would suit your property in the Central Coast, check out our article Septic Tank Buying Guide or simply get in touch for some friendly advice.

 

Related Articles
garden master elite septic tank
Tips & Advice

Home Sewage Treatment Plant (HSTP), What Are They?

30 October 2023

Guide: Home Sewage Treatment Plant (HSTP)

A Home Sewage Treatment Plant, also known as an HSTP or Onsite Sewage Management System, is a decentralised wastewater treatment system designed for residential homes, small communities or small commercial sites that are not connected to centralised sewer systems.

The primary purpose of an HSTP is to treat and purify domestic wastewater generated in a home or small community so that it can be safely discharged into the environment without causing harm.

Regulations for HSTPs can vary by location and local council requirements, so it’s essential to know your local guidelines and standards when installing or maintaining these systems.

The HSTP receives and treats all household wastewater from the following:
  • toilet
  • bathroom
  • kitchen
  • laundry
Septic Tank, AWTS, Advanced STS Wastewater Cycle

A Home Sewage Treatment Plant (HSTP) receives all wastewater (both greywater and blackwater) from the premises, including the kitchen, toilet, shower and laundry, and quietly and efficiently recycles all your household wastewater into clean, clear and odourless water suitable for irrigation in your garden and lawns.

This Is How A Typical HSTP Works: 

  1. Wastewater Collection: The HSTP collects all wastewater generated in the home, including water from toilets, sinks, showers, and laundry.
  2. Primary Treatment: In the first stage of treatment, solid materials are separated from the liquid through sedimentation and filtration. This stage typically occurs in a septic tank, where solids settle to the bottom and are partially broken down by bacteria.
  3. Secondary Treatment: The partially treated effluent from the septic tank is further treated in aeration or treatment chambers. Here, bacteria and microorganisms break down organic matter and pathogens in the wastewater. Some systems may use alternative methods like activated sludge or aerobic treatment.
  4. Tertiary Treatment (Optional): In some cases, an additional treatment step may be required to improve the effluent quality further. This can involve processes like chlorination, UV disinfection, or constructed wetlands.
  5. Effluent Discharge: After treatment, the treated wastewater (effluent) is safely discharged into the environment. The discharge method can vary, with some systems using absorption trenches, mounds, or subsurface irrigation to disperse the treated effluent into the ground.
Garden Master Advanced Secondary Treatment System cross section AWTS

HSTPs usually comprise multiple treatment stages, including primary settling, aeration, clarification, and disinfection, treating wastewater by breaking down organic matter and reducing harmful contaminants before the treated water is discharged into the environment or dispersed via subsurface irrigation.

Home Sewage Treatment Plant Pros & Cons

Home Sewage Treatment Plants (HSTPs) offer several advantages and disadvantages, depending on your specific needs and circumstances. Here are the pros and cons of using HSTPs:

HSTP Pros:
  • Environmental Benefits:
    • Water Recycling: HSTPs treat wastewater onsite, which can be used for irrigation, reducing the demand on local water sources.
    • Reduced Pollution: Properly functioning HSTPs prevent the contamination of nearby groundwater and surface water bodies, contributing to environmental conservation.
  • Independence:
    • No Connection Costs: You don’t need to pay for connecting to a centralised sewer system, which can be expensive.
    • Location Flexibility: HSTPs are suitable for rural or remote areas where centralised systems are not feasible.
  • Cost Savings:
    • Lower Water Bills: By recycling treated wastewater for irrigation, you can reduce water consumption and save on water bills.
    • Avoid Monthly Fees: You don’t have to pay ongoing fees to a sewer utility.
  • Reliability:
    • Less Vulnerable: HSTPs are less susceptible to damage during natural disasters that might affect centralised sewer systems.
HSTP Cons:
  • Upfront Costs:
    • Installation Costs: Setting up an HSTP can be expensive, including the cost of tanks, pipes, irrigation and treatment equipment.
    • Maintenance Costs: Routine maintenance and occasional repairs can add to the long-term cost.
  • Ongoing Maintenance:
    • Regular Servicing: HSTPs require routine maintenance, including inspections, pumping, and cleaning to ensure proper function.
    • Environmental Risks: Inadequate maintenance can lead to system failures and environmental contamination.
  • Regulations and Permits:
    • Varied Regulations: Local regulations and permits can be complex, with different requirements for HSTPs depending on your location.
    • Compliance Challenges: Meeting and maintaining compliance can be a challenge.
  • Limited Capacity:
    • Sizing: The capacity of an HSTP is typically designed for a specific number of occupants and may not be easily expandable.
  • Effluent Quality:
    • Variable Quality: The quality of effluent from HSTPs can vary. Some systems might not be suitable for water reuse.
  • Odor and Noise:
    • Potential Odours: Some HSTPs can emit odours, especially if not adequately maintained.
    • Noise: Aeration systems in certain HSTPs can generate noise.
  • Energy Use:
    • Electricity Consumption: HSTPs with mechanical components, like pumps and aerators, can consume electricity.

The decision to install an HSTP should be made considering your specific location, local regulations, budget, and your commitment to regular maintenance. If properly designed, installed, and maintained, HSTPs can be environmentally friendly and cost-effective for managing wastewater in areas without access to centralised sewer systems.

Buying a HSTP

Before purchasing a Home Sewage Treatment Plant (HSTP) system, there are several important factors to consider to ensure you make the right choice for your property and needs. Here are some key considerations:

  • Regulations and Permits: Check local, state, and national regulations governing the use of HSTP systems. Ensure you have the necessary permits and approvals to install and operate such a system on your property.

We recommend reading: Septic Tank Regulations In NSW

  • Site Suitability: Assess your property to determine if it suits an HSTP. Factors like soil type, available space, and groundwater conditions can affect the system’s performance.
  • System Size: The size of the HSTP should match the wastewater generation of your household or facility. Consider the number of occupants, daily water usage, and peak flow rates when sizing the system.
  • Treatment Capacity: Evaluate the treatment capacity of the HSTP. It should be capable of treating your wastewater to meet local discharge or reuse standards.
  • Local Climate: Consider the local climate conditions. Extremely hot or cold climates may require additional insulation, heating, or cooling for the system to operate effectively.
  • Maintenance Requirements: Different HSTP systems have varying maintenance needs. Understand what is required for upkeep and whether you can manage these tasks or need professional servicing.
  • Energy Consumption: Determine the energy requirements of the system. Some HSTP systems are energy-efficient, while others may consume more power—factoring in ongoing operational costs.
  • Quality of Effluent: Assess the quality of the treated effluent. It should meet environmental standards for safe discharge or reuse, especially if you plan to use the effluent for irrigation.
  • System Brand and Model: Research reputable manufacturers and models. Choose a system with a good track record and consider factors like reliability, warranty, and availability of spare parts.
  • Local Service Providers: Ensure local professionals are available for system installation and maintenance. Prompt service is essential to keep the HSTP running smoothly.
  • Budget: Set a budget for the purchase, installation, and ongoing maintenance of the HSTP. Remember to factor in long-term operational costs.
  • Environmental Impact: Consider the environmental impact of your HSTP. The system should treat wastewater in an eco-friendly manner and prevent groundwater contamination.
  • Long-Term Plans: Think about your long-term plans for the property. If you intend to expand or make changes, consider how the HSTP will fit into your future plans.
  • Consult a Professional: It’s advisable to consult with a wastewater specialist or engineer who can assess your property and help you select the most suitable HSTP system.
  • Warranty and Support: Inquire about the manufacturer’s warranty and the availability of customer support in case of issues.
  • References: Ask for references from property owners who have installed similar HSTP systems to learn from their experiences.

Considerations When Choosing a Septic System

We highly recommend reading our Septic Tank Buying Guide, which covers all the primary considerations. Such as:

  • Set back distances from houses, structures, waters sources etc
  • Types of Septic Tanks and Systems
  • The average cost of a septic system
  • The process of getting a quote through to the installation
Speaking with an industry professional is an excellent idea to help you choose the best septic system tailored to your site.  

Why are Garden Master HSTP good?

residential single tank AWTS Advanced STS

For over 30 years, we have provided reliable Home Sewage Treatment Plants, Septic Tanks, Aerated Wastewater Treatment Systems (AWTS) and Advanced Secondary Treatment Systems (STS) for domestic and commercial installations.

Useful Reading: What Is An Advanced Secondary Treatment System?

The team at Garden Master are experts in the design, supply and installation of top-quality wastewater systems. Our residential septic systems and commercial wastewater management systems are approved by the NSW, VIC and ACT departments of health.

Our main HSTP is the Garden Master “Elite” Advanced Secondary Treatment System. The Garden Master “Elite” Advanced STS (Secondary Treatment System) is an Aerated Wastewater Treatment System and comes in a single concrete septic tank with 7100L capacity for domestic premises with up to 10 people or a dual tank option for commercial sites with a capacity of up to 20 people.

Our Septic Tanks are proudly Australian-made and manufactured at our factory to ensure that our exacting standards are being met.

The Garden Master advanced secondary treatment system (STS) has been designed to treat the effluent to achieve the best possible quality water before discharge back into the environment.

Garden Master has been an industry leader for over 30 years, manufacturing, supplying, and servicing quality wastewater treatment systems and septic tanks for thousands of clients across Australia.

Don’t hesitate to call us on 1800 632 582 with any questions!

council supervision for septic tank installation in nsw
Tips & Advice

Septic Tank Regulations In NSW

22 September 2023

Whether you’re a long-time septic system user or have recently had one installed, this Septic Tank Regulations guide is for you if you’re in NSW.

This article is a must-read if you’re transitioning from city to country living or considering a new septic installation in NSW. Discover how to effectively manage and operate your septic system to prevent sewage pollution, ensuring your family’s health and the environment’s quality remain uncompromised.

Firstly, septic tank regulations vary by region and are subject to change. In New South Wales, the local council or the NSW Environment Protection Authority (EPA) typically outlines septic system regulations. These regulations cover aspects such as installation, maintenance, and environmental protection. To get accurate and up-to-date information on septic tank regulations in NSW, we recommend visiting the official website of the NSW EPA or contacting your local council’s environmental health department. Alternatively, we’ve supplied and installed thousands of Septic Systems throughout NSW and can provide expert advice or point you in the right direction.

SO WHAT NSW SEPTIC TANK REGULATIONS DO YOU NEED TO KNOW?

NSW Government regulations now require registering every septic system with your council.

SepticSafe registration

Registering is necessary so councils can monitor and manage the overall impact of the septic systems in the drainage catchment. Taken
together, that is a lot of effluent, and no one wants to swim in it.

What is septic tank registration?

Registration is like registering a car. Information about your septic system is sent to the council with an application for approval. The council issues an ‘approval to operate a system of sewage management’, which sets out the basic rules you need to follow to keep the system working well.

The details are set out in the council’s on-site sewage management strategy and local approvals policy. Both of these documents are available at your council.

A fee may be charged to help the council cover the costs of monitoring and managing public health and environmental risks associated with septic systems. People in sewered areas already pay for these costs in their sewerage rates.

How does council supervision work?

council supervision for septic tank installation in nsw

Registration is like registering a car. Information about your septic system is sent to the council with an application for approval. The council issues an ‘approval to operate a system of sewage management’, which sets out the basic rules you need to follow to keep the system working well.

The details are set out in the council’s on-site sewage management strategy and local approvals policy. Both of these documents are available at your council.

A fee may be charged to help the council cover the costs of monitoring and managing public health and environmental risks associated with septic systems. People in sewered areas already pay for these costs in their sewerage rates.

 

The process works like this:

  1. Resident sends in a SepticSafe registration and pays a fee (if required).
  2. Council records the details and determines a risk classification (e.g. high, medium, low).
  3. Council issues an operating approval, which may require regular reports or site inspections.

Note that the approval relates to the owner, not the land. When the land is sold, the new owner should notify the council and obtain approval in their name.

Your septic system may be classified according to an assessment of public health and environmental risks.

Your septic system will be assessed by your council and given a risk classification for the purpose of accountability and supervision. The classification depends mainly on the area where the septic system is located.

Many councils use a three-class risk classification scheme as set out below. Sometimes, more complex classification schemes may be necessary.

HIGH-RISK AREAS

These are highly vulnerable and sensitive environments like villages and areas close to drinking water sources, oyster leases, rivers and wetlands where the release of sewage pollution can cause much harm.

Suppose your septic system is in a high-risk area. In that case, the council will arrange regular checks to assure safety and good practices.

MEDIUM-RISK AREAS

These are vulnerable areas with a lower risk of water pollution because of factors like setbacks, good soil and vegetation and lower housing density.

If your septic system is in a medium-risk area, the council may ask you to do regular checks yourself, and it may do random audits.

LOW-RISK AREAS

These are areas where septic systems are located on good soil well away from waterways, drainage lines, homes and sensitive environments.

If your septic system is in a low-risk area, registration may be all that is required, provided you ensure that it is well-managed and maintained.

As a septic system owner, you are responsible for –

  • Ensuring the house drains and tank don’t leak
  • Getting things fixed if they are not working properly
  • Keeping the system well-maintained
  • Ensuring the system is checked regularly
  • Getting the tank pumped (de-sludged) when it becomes too full to process the flow going into it
  • Maintaining and protecting the absorption field
  • You comply with the council’s requirements for installation, maintenance service and operation and paying fees for inspections or maintenance
Septic Tank Regulations In NSW

Meanwhile, the council is responsible for –

  • Providing general services for the protection of the environment, public health and safety
  • Helping people keep their septic systems working well
  • Providing a scheme of systematic management for all of the septic systems in the council area, including environmental monitoring and technical advice
  • Providing advice and contact information when people need professional services to design or maintain septic systems
  • Regulating the installation, operation and maintenance of septic systems, conducting audits and inspections and keeping a register of systems in use in the council area
  • Providing community information and education programs
  • Monitoring and reporting on the overall impact of effluent and other by-products from septic systems in the state of the environment report for the council area
  • Implementing strategies for ecologically sustainable development

How to protect groundwater

Groundwater (usually from bores) has been tapped for decades, but only recently have we started to understand how vulnerable it is to contamination from surface activities. Pesticides can find their way into groundwater, as can effluent from septic systems. Locating septic systems at a safe distance from wells, bores, creeks, lakes, and houses is vital to maintaining them well.

Badly maintained septic systems

Groundwater is easily contaminated. Make sure your septic system is located a safe distance from wells, bores, creeks, lakes and houses.

 

Failing septic systems can leak chemicals such as medicines, pesticides, paints, varnishes and thinners into the local groundwater. Some chemicals, even in small amounts, can harm the environment and public health.

Failing septic systems

Even if the septic system works well, these contaminants can enter groundwater under certain geological conditions. Fractured bedrock and shallow groundwater tables may also allow bacteria and viruses to be transported rapidly, contaminating nearby drinking water supplies.

Recommended buffer distances for septic systems

All land application systems
  • 100 metres to permanent surface waters (e.g. river, stream, lake)
  • 250 metres to domestic groundwater well or bore
  • 40 metres to other waters (e.g. farm dams, intermittent streams, drainage channels etc.)
Surface spray irrigation
  • 6 metres uphill, and 3 metres downhill of driveways and property boundaries
  • 15 metres to dwellings
  • 3 metres to paths and walkways
  • 6 metres to swimming pools
Surface drip and trickle irrigation; Sub-surface irrigation
  • 6 metres uphill, and 3 metres downhill of swimming pools, property boundaries and buildings
Septic tank absorption trench area
  • 12 metres uphill, and 6 metres downhill of property boundary
  • 6 metres uphill and 3 metres downhill of swimming pools, driveways and buildings
  • 3 metres to paths and walkways
Recommended buffer distances for septic systems

SEPTIC SHOPPING GUIDE

Investigate before you invest.

If you plan to purchase land for a new home, check before buying.

If a reticulated sewerage scheme is unavailable, you must consider a septic system or something similar. Your first step should be to obtain advice from your local council, local land use consultant or a wastewater expert.

If you are buying an existing home with an existing septic system, ask the seller a few important questions, such as –

  • How old is the septic system?
  • When was the tank last pumped out and de-sludged?
  • How frequently was it pumped out?
  • Have there been any signs of failure?
  • Have there been any additions to the house that might make it necessary to increase the size of the system?
septic tank in shopping trolley

Which septic system is best?

When choosing a septic system, the most important thing to consider is where it will be used, how it will be used and who will use it. For example, a septic system in a weekend holiday home will be less used than one in a large, permanently occupied family home.

The septic system you choose will depend on the site’s suitability for effluent absorption, how many people will live in the home, what area of land is available, what kind of lifestyle the family lives, and what heavy water-use appliances are in the home. A septic system specialist will advise you about what is best for your situation.

Soil type, salt content, local rainfall and the depth of the water table all need to be considered when deciding where to put a new septic system. These decisions should be discussed with an environmental specialist.

Septic systems vastly vary from traditional septic tanks, sand filters, rare evapotranspiration beds, and wetland systems to modern Aerated Wastewater Treatment Systems (AWTS) and Advanced Secondary Treatment Systems (STS), which are fast becoming the most popular choice of septic systems used throughout New South Wales, ACT and Victoria.

If you need help determining what septic system would suit your property, check out our article Septic Tank Buying Guide or get in touch for some friendly advice.

Remember to ask for a cost estimate for maintenance as well as installation and consider environmental impacts.

Garden Master has been an industry leader for over 30 years, manufacturing, supplying, and servicing quality wastewater treatment systems and septic tanks for thousands of clients across Australia.

Don’t hesitate to call us on 1800 632 582 with any questions!

residential single tank AWTS Advanced STS Wastewater Treatment Systems
Tips & Advice

What Are Aerated Wastewater Treatment Systems (AWTS)

21 August 2023

Aerated Wastewater Treatment Systems, or AWTS, are self-contained wastewater treatment systems. 

Aerated Wastewater Treatment Systems, also known as an AWTS, is a self-contained solution for treating and processing wastewater commonly used for households or small-scale commercial properties. These septic systems employ aeration followed by clarification to biologically treat wastewater, producing a high-quality effluent.

AWTS are typically installed on properties that cannot connect to a reticulated town sewer system and have become the most popular choice for wastewater management today. The advanced treatment process ensures the final effluent is of excellent quality, reducing risks to your family’s health, neighbouring properties, and local waterways. This high-quality effluent is dispersed just below the surface of the ground, effectively reusing the treated water to irrigate gardens and lawns.

These wastewater systems are versatile and can be installed on properties with challenging conditions, such as rocky terrain, sandy soils, high-water tables, steep gradients, or limited space. Aerated Wastewater Treatment Systems are also the preferred choice in environmentally sensitive areas due to their reliability and eco-friendly design.

An AWTS receives and treats all household wastewater from the following sources:

  1. Kitchen
    • Wastewater from sinks, dishwashers, and other kitchen activities.
  2. Bathrooms
    • Water from showers, bathtubs, and bathroom sinks.
  3. Laundry
    • Wastewater from washing machines and laundry tubs.
  4. Toilets
    • Blackwater from toilets, containing human waste and toilet paper.
  5. Other Household Fixtures
    • Any additional drains or fixtures that produce wastewater within the home.

Aerated Wastewater Treatment Systems treats all this wastewater through aeration, biological processes, and clarification, producing a high-quality effluent suitable for safe disposal or reuse for irrigation purposes.

Septic Tank, AWTS, Advanced STS Wastewater Cycle

How does an Aerated Wastewater Treatment System (AWTS) work?

AWTS comprises multiple treatment stages, including primary settling, aeration, clarification, and disinfection. Aerated Wastewater Treatment Systems mainly aim to treat wastewater by breaking down organic matter and reducing harmful contaminants before the treated water is discharged into the environment or dispersed via subsurface irrigation.

Stage 1. Primary Treatment (Separation Stage)

  • Wastewater (influent) enters the primary chamber from the household source.
  • In this chamber, the wastewater separates into three layers:
    • Scum layer: Fats, oils, and grease (FOGs) float to the surface.
    • Effluent layer: Liquids settle in the middle.
    • Sludge layer: Solids settle at the bottom.
  • The primary-treated effluent flows through a transfer port into the aeration tank, while scum and sludge remain in the primary chamber.

Stage 2. Aeration (Biological Treatment Stage)

  • The aeration tank introduces oxygen into the effluent using an air blower, creating an environment for aerobic bacteria and microorganisms to break down organic matter.
  • Media within the tank supports bacteria growth and prevents short-circuiting of wastewater, ensuring thorough aeration.
  • This stage effectively digests organic waste and ensures extended biological treatment.

Stage 3. Clarification (Settlement Stage)

  • After aeration, the effluent flows into the clarification chamber, a quiescent zone where suspended particles and solids settle out of the water.
  • These particles are returned to the septic or aeration chambers via a sludge return system. This aids in further biological reduction, denitrification, and maintaining a steady microbial population for periods of limited flow.

Stage 4. Disinfection (Safety Stage)

  • Before irrigation, the effluent undergoes disinfection in a chlorinator, which removes harmful bacteria, viruses, and pathogens.
  • The automatic chlorinator administers low doses of chlorine to ensure the water is safe for reuse.

Stage 5. Irrigation (Final Stage)

  • When the final chamber reaches a set level, a float switch activates the irrigation pump, sending the treated effluent to the irrigation field.
Garden Master Advanced Secondary Treatment System cross section AWTS

This comprehensive treatment process ensures the wastewater is thoroughly treated, producing clean and safe effluent suitable for irrigation while maintaining system efficiency and protecting the environment.

Variations in AWTS Systems

AWTS systems come in various designs and sizes, with their capacity influenced by factors such as:

  • The number of users
  • Property size
  • Local regulations

Compliance with relevant regulatory requirements, along with proper system maintenance and monitoring, is essential for efficient operation and long-term environmental sustainability.

General Guidelines for Aerated Wastewater Treatment System Tank Sizing

Determining the ideal AWTS tank size can be challenging as every property has unique needs. However, AS/NZS 1546.1:2008 provides general guidelines:

  • A home with 4–6 bedrooms typically requires a minimum tank size of 4,500L for regular wastewater production.

It’s important to note this is a guideline only. Consulting local wastewater specialists is strongly recommended to ensure your system is appropriately sized and functioning efficiently for your specific circumstances.

Useful Reading: 

When Advanced STS is Required

Often, an Advanced STS (Sewage Treatment System) may be necessary instead of an AWTS.

By considering these factors and seeking expert advice, you can ensure your wastewater system operates effectively and sustainably.

“The treated effluent from domestic wastewater treatment systems should not be used for human consumption or to irrigate vegetables or fruit, and the irrigation area should not be used for recreational purposes

Considerations When Choosing a Septic System

We highly recommend reading our Septic Tank Buying Guide, which covers all the primary considerations. Such as:

  • Set back distances from houses, structures, waters sources etc
  •  Types of Septic Tanks and Systems
  • The average cost of a septic system
  • The process of getting a quote through to the installation
Speaking with an industry professional is an excellent idea to help you choose the best septic system tailored to your site.  
Useful Reading: 

Garden Master has been an industry leader for over 30 years, manufacturing, supplying, and servicing quality wastewater treatment systems and septic tanks for thousands of clients across Australia.

Don’t hesitate to call us on 1800 632 582 with any questions!

Septic Tank Newcastle
Tips & Advice

Guide: Septic Tanks Newcastle

26 June 2023

In Newcastle, Lake Macquarie and Port Stephens, septic tanks are used where municipal sewer services are unavailable. 

If you are considering installing a septic tank system in the Newcastle region, it’s essential to understand the local regulations and requirements, as well as the different types of systems that are available.

 

Some things to consider when installing a septic tank system in Newcastle include the following:

  1. Soil conditions: The type and quality of soil on your property will affect the design and installation of the septic tank system. A percolation test can be conducted to determine the soil’s ability to absorb water and to determine the size of the drain field that will be required.
  2. Tank size: The size of the septic tank will depend on the size of the property, the number of occupants, and the expected water usage. A licensed professional can help determine the appropriate size for your needs.
  3. Maintenance requirements: Regular maintenance and pumping of the septic tank are required to ensure the system’s proper functioning. Following the recommended pumping schedule and hiring a licensed septic system maintenance professional to perform the maintenance is essential.
  4. Local regulations: Local councils in Newcastle regulate the installation and use of septic tank systems. It is important to check with your local council to ensure your system meets all requirements and obtains the necessary permits. Quick links to Council websites:
  5. Type of system: There are several types of septic tank systems available, including traditional septic systems, aerobic treatment systems, and composting toilet systems. Each system has advantages and disadvantages, and choosing the system that best fits your needs and site conditions is important. If you haven’t already read our Septic Tank Buying Guide, we recommend you do.

 

When choosing a septic tank system in Newcastle, it is important to consult a licensed professional with experience in installation and maintenance in your local area. They can help you choose the right system for your needs, obtain the necessary permits, and install it properly.

 

Here are some general guidelines for septic tank requirements in Newcastle, NSW

Local councils regulate the installation of septic systems in Newcastle, and the specific regulations and requirements can vary depending on the location and soil conditions.

 

Some standard regulations that may apply when installing a septic system in Newcastle include the following:

 

  • Approval and permits:  Contact the Newcastle City Council or the local authority responsible for issuing permits and approvals for septic systems. They will provide you with the necessary guidelines and information on the approval process.

Plans and Specifications Should Include: 

a) Site Plan 

b) Proposed Internal and External Drainage, Tank and Trench Position

c) Trench Design

d) Septic Tank Manufacturers Specifications

e) Certificate of Accreditation from NSW Health Visit the NSW Health website.

  • Site and soil assessments: The local council may require a site and soil assessment before installing a septic system. This may involve testing the soil to determine its ability to absorb water, assessing the site’s slope and drainage, and ensuring adequate space for the system.
  • Minimum setback distances: Ensure that the septic system design complies with the requirements set by the Newcastle City Council or relevant authority. This includes considerations for setbacks from buildings, water bodies, property boundaries and soil and groundwater suitability.
  • Application and Permit: Submit a septic system installation permit application to the Newcastle City Council or relevant authorities. The application typically includes the system design plans, property details, and any other required documentation. Pay any applicable fees.
  • System design and construction:  Engage a professional septic system designer or an environmental consultant to assess the property, soil conditions, and groundwater levels. They will design a septic system that meets the specific requirements of your property and complies with local regulations.
  • Installation: Hire a licensed plumber or septic system installer to install the approved septic system according to the design specifications and any additional requirements specified by the council.
  • Inspections: Arrange for inspections by the Newcastle City Council or relevant authorities at various stages of the installation process. These inspections ensure that the septic system is being installed correctly and meets the required standards.
  • Maintenance: Once the septic system is installed, it is essential to regularly maintain and service it according to the manufacturer’s recommendations and any requirements set by the council. Regular pump-outs and inspections may be necessary to ensure the system’s proper functioning.

 

Useful Reading:

 

We’ve designed and installed septic tanks all throughout the greater Newcastle region.

 

For over 30 years, we have provided reliable Sewage Treatment Systems, Septic Tanks, Aerated Wastewater Treatment Systems (AWTS) and Advanced Secondary Treatment Systems (STS) for both domestic and commercial installations across Newcastle. In saying that, our Garden Master “Elite” Advanced Secondary Treatment System (STS) is our primary septic tank system used on Newcastle properties. The Elite is perfect for domestic premises with up to 10 people. It is based on a single concrete septic tank with a 7100L capacity.

 

The Garden Master “Elite” Advanced Secondary Treatment System (STS)

 

residential single septic tank

To learn more about our range of wastewater systems in Newcastle, click through to our Systems page.

 

Garden Master provides environmentally friendly Septic Solutions and Subsurface Irrigation services for domestic and commercial properties across the greater Newcastle region, including Lake Macquarie, Port Stephens, Raymond Terrace, Medowie, Central Coast and Mid North Coast.

 

If you’re unsure what septic system would suit your property in Newcastle, check out our article Septic Tank Buying Guide or simply get in touch for some friendly advice.

 

Related Articles
Septic Tanks Sydney
Tips & Advice

Septic Tanks Sydney

22 March 2023

You will need a Septic Tank in Sydney, where municipal sewer services are unavailable. 

If you are considering installing a Septic Tank Sydney, it’s essential to understand the local regulations and requirements and the different types of systems available.

Septic tanks are commonly used in areas where municipal sewer services are unavailable in Sydney, and proper planning is vital to ensure compliance with local regulations and effective wastewater management. From soil conditions and tank sizes to system types and council requirements, this Sydney specific guide will walk you through everything you need to know about septic tanks in Sydney. Whether you’re looking for a basic system or advanced treatment units, this resource will help you make informed decisions and easily navigate the installation process.

 

Some things to consider when installing a septic tank system in Sydney include the following:

1. Soil conditions: The type and quality of soil on your property will affect the design and installation of the septic tank system. A percolation test can be conducted to determine the soil’s ability to absorb water and to determine the size of the drain field that will be required.

2. Tank size: The size of the septic tank will depend on the size of the property, the number of occupants, and the expected water usage. A licensed professional can help determine the appropriate size for your needs.

3. Maintenance requirements: Regular maintenance and pumping of the septic tank are required to ensure the system’s proper functioning. Following the recommended pumping schedule and hiring a licensed septic system maintenance professional to perform the maintenance is essential.

4. Local regulations: Sydney’s local councils regulate the installation and use of septic tank systems. It is important to check with your local council to ensure your system meets all requirements and obtains the necessary permits. Quick links to Sydney’s council websites:

5. Type of system: Several types of septic tank systems are available in Sydney, including traditional septic systems, which use a septic tank and drain field. Aerobic Treatment Units (ATUs) like AWTS introduce oxygen to enhance waste breakdown through to more advanced systems like Advanced STS and Advanced Membrane Bio-Reactors. Each system has advantages and disadvantages, and choosing the system that best fits your needs and site conditions is important. If you haven’t already read our Septic Tank Buying Guide, we recommend you do so.

 

“When choosing a septic tank system in Sydney, it is important to consult a licensed professional with experience in installation and maintenance in your local area. They can help you choose the right system for your needs, obtain the necessary permits, and install it properly.”

 

Local regulations when installing a septic system in Sydney

Local Sydney Council LGA regulates the installation of septic systems in Sydney, including areas such as Penrith, Blacktown, Parramatta, Cumberland, The Hills Shire, and Hawkesbury, regulate septic system installations. While regulations may vary between councils, common requirements typically include obtaining approval and necessary permits, conducting site and soil assessments, adhering to minimum setback distances from structures and water bodies, and ensuring the system is designed and constructed according to specific standards. Regular maintenance and inspections are also mandated to ensure the system’s proper functioning and compliance with local regulations.

 

Some standard regulations that may apply when installing a septic system in Sydney include the following:

  • Approval and permits: You must obtain approval from your local council and obtain the necessary permits before installing a septic system. This may include submitting detailed plans and designs, paying fees, and complying with specific requirements.

Plans and Specifications Should Include: 

a) Site Plan 

b) Proposed Internal and External Drainage, Tank and Trench Position

c) Trench Design

d) Septic Tank Manufacturers Specifications

e) Certificate of Accreditation from NSW Health Visit the NSW Health website.

 

  • Site and soil assessments: Your local council may require a site and soil assessment before installing a septic system. This may involve testing the soil to determine its ability to absorb water, assessing the site’s slope and drainage, and ensuring adequate space for the system.
  • Minimum setback distances: The local Sydney council may require a minimum setback distance between the septic system and nearby structures, water bodies, and property boundaries. This ensures that the system does not risk public health or the environment.
  • System design and construction: The septic system must be designed and constructed following specific standards and guidelines. This may include the septic system type and size, the drain field’s design and location, and the use of appropriate materials and equipment.
  • Maintenance and inspections: Regular maintenance and inspections of the septic system are required to ensure proper functioning and compliance with local regulations. This may include regular septic tank pumping, drain field inspections, and necessary repairs.

We’ve designed and installed septic tanks all throughout the greater Sydney region.

 

For over 30 years, we have provided reliable Sewage Treatment Systems, Septic Tanks, Aerated Wastewater Treatment Systems (AWTS), and Advanced Secondary Treatment Systems (STS) for both domestic and commercial installations across the greater Sydney region. Our Garden Master “Elite” Advanced Secondary Treatment System (STS) is our primary septic tank system used on Sydney properties. The Elite is perfect for domestic premises with up to 10 people. It is based on a single concrete septic tank with a 7100L capacity.

 

The Garden Master “Elite” Advanced Secondary Treatment System (STS)

residential single septic tank

To learn more about our range of wastewater systems in Sydney, click through to your Systems page.

 

Garden Master provides environmentally friendly Septic Solutions and Subsurface Irrigation services for domestic and commercial properties across the greater Sydney region, including the Northern Beaches, Upper North Shore, Hills & Hawesbury, Penrith Valley, South West, Macarthur, St George & Sutherland Shire, and the Blue Mountains.

 

If you’re unsure what septic system would suit your property in Sydney, check out our article Septic Tank Buying Guide or simply get in touch for some friendly advice.

Useful Reading: 
Related Articles
mosquito
Tips & Advice

Mosquitoes Breeding In Septic System

9 November 2022

As floods and floodwaters are becoming more prevalent up and down Australia’s east coast, the mosquitoes’ buzz is becoming even louder.

Slow-moving and stagnant water gives mozzies an ideal breeding ground, and flood-affected communities feel the bite.

As floodwaters recede and stagnant pools dry up with the warm weather, this influx of mosquitoes will look for new breeding grounds. It might not seem likely, but septic tanks are the ideal location for mosquito infestations to start and quickly gain in number.

Septic tanks are protected from the elements and full of stagnant nutrient-rich sewage and sewage effluent that can produce vast numbers of mosquitoes. Female mosquitos only need a way in, and it doesn’t have to be that big for her to crawl through.

 

The mosquito breeding associated with sewage treatment is usually associated with inadequate design, operation and maintenance or faulty effluent disposal or dispersal methods. Mosquitoes can get inside broken or unsealed septic tanks and lay eggs. Thousands of mosquitoes emerge daily from inadequately kept septic tanks. 

 

These mosquitoes can spread viruses like Dengue fever, Ross River virus, Zika, Murray Valley encephalitis, Barmah Forest virus and Elephantiasis, which can cause serious illness. 

NSW health authorities are warning residents to brace for a “high risk” of Japanese encephalitis (JEV) infections in the summer of 2022/23 following months of wet weather. Experts predict a mosquito boom when the weather warms up, with residents being urged to vaccinate against JEV. The potentially fatal virus can cause headaches, convulsions and reduced consciousness.

 

MOSQUITO SPECIES ASSOCIATED WITH SEWAGE 

 

Culex quinquefasciatus: ‘The Brown House Mosquito’

This species usually breeds in organically polluted water near human communities. It is frequently found breeding in high numbers in unsealed septic tanks and primary sewage ponds. However, it is sometimes found in organically overloaded secondary sewage ponds. This is a very significant pest species wherever favourable breeding sites exist. The females rarely travel more than 2 km from their breeding sites.

Culex annulirostris: ‘The Common Banded Mosquito’

Culex annulirostris is one of the most common mosquitoes in Australia. The most prolific artificial breeding places are secondary sewage treatment, evaporation ponds, and sewage pond effluent. The larvae are most frequently found in calm, sheltered areas where vegetation offers protection from disruptive wave action and aquatic predators. The females of this species can disperse up to 10 kilometres from the breeding site. However, the highest concentrations are usually found within 3 – 4 km of significant breeding sites.

Anopheles annulipes s.l.: ‘The Common Australian Anopheline’

This species usually breeds in open, sunlit, temporary and permanent freshwater ground pools, streams or swamps. The females can disperse up to 2 km from their breeding places. It is not found in septic tanks and rarely in sewage treatment ponds. Still, it can frequently be found in sites of disposal of sewage effluent, mainly where the effluent flows into shallow, grassed areas.

 

A sudden swarm on your property means that the mosquitoes have found a healthy place to breed, and you’ll want to get to the bottom of it quickly.

 

On a positive note, mosquitoes and their health risks can be mitigated while planning your septic system. However, suppose your system is already in operation. In that case, you may need to inspect and repair your septic tank to keep mosquitoes out.

 

How to prevent mosquitoes from reproducing in your septic tank:

  • Check for cracks in septic tank lids and seal or replace them to ensure a tight fit.
  • Be sure that plastic covers are fastened and adequately secured, and sealed.
  • Repair cracks or gaps in the exterior walls of the septic tank using cement or expanding foam used for home insulation projects. 
  • Cover vent or plumbing pipe openings using a mesh with holes smaller than a mosquito (fine mesh that is 1/16th of an inch). Mould the screen into a cylinder for vent pipes under or near trees so leaves and debris slide off. 
  • Fill abandoned or unused septic tanks with dirt or gravel.

 

To prevent mosquitos from multiplying in your septic tank, you should inspect it regularly and repair any damage if discovered. We recommend you work with a licensed septic tank installer and check local regulations before repairing a septic tank on your own. 

 

Garden Master provides environmentally friendly Septic Solutions for domestic and commercial properties across NSW, ACT and Victoria.

Garden Master offers nothing but the highest quality residential septic tanks, secondary treatment systems (STS), and commercial-grade wastewater treatment systems. We have septic treatment systems suitable for domestic homes and cabins through to commercial industries. We pride ourselves on customer service, meaning you won’t just get a one-size-fits-all approach with us but rather a tailored solution to suit your exact wastewater needs. With over 30 years of experience, you can rely on Garden Master to provide you with the best available wastewater treatment products and services.

 

If you’re unsure what septic system would suit your property, check out our article Septic Tank Buying Guide or simply get in touch for some friendly advice.

 

SOURCES:

https://www.healthdirect.gov.au/mosquito-borne-diseases

 

Related Articles
Subsurface irrigation
Tips & Advice

What Is Subsurface Irrigation?

10 May 2022

When your house or property is not connected to a council/municipal sewer, on-site wastewater systems like Septic Tanks or Aerated Wastewater Treatment Systems are often installed to treat the sewage and blackwater generated.

The latter and most popular of the two options (Aerated Wastewater Treatment Systems or AWTS) receives all wastewater from the premises, including the kitchen, toilet, shower and laundry, and quietly and efficiently recycles all your household wastewater into clean, clear and odourless water suitable for irrigation on your garden and lawns via sub-surface irrigation. 

Subsurface irrigation is the best method of disposal of the cleaned and disinfected wastewater for most local governing authorities. The considerable benefit of subsurface irrigation is that there is no contact with the treated effluent for humans, pets or livestock.

It works by the AWTS being connected to the sub-surface irrigation, allowing the secondary/aerated treated effluent to be dispersed via multiple polyethylene drip lines, covering a targeted area (often called a leach field). Subsurface irrigation evenly disperses the treated effluent underground (after disinfection by an Advanced Secondary Treatment System) straight to the biologically active layer of the soil. The soil consumes residual bacteria or organic matter, and vegetation such as grass will absorb the nutrients. 

Sub-Surface Irrigation Being Installed:

 

The sub-surface poly drip lines are buried in a grid between 100mm – 150mm below the ground, where inserted emitters disperse the wastewater evenly through the irrigation network.

 

The constant dispersal of the water means there is no run-off or pooling on the top of the leach field, reducing human contact and contamination of waterways.

When considering sub-surface irrigation as part of your wastewater solution, you will need to consider your soil type, site conditions, size of the leach field and the intended application of the area. The grass of the leach field should be maintained short to allow good airflow and for the sunlight to dry excess dampness. 

Planting on septic drain fields and around your septic system and leach field is not only permissible but advisable. Plants will prevent erosion and suck up some of the excess moisture from the drain field. At the very least, grow a Tall Fescue grass or Kentucky Bluegrass. Tall Fescue and Kentucky Bluegrass are often mixed and can handle high water levels.

 

Read our full article: What Plants Can You Plant Around A Septic System?

 

Large areas (over 250 to 300 linear metres of drip line) are usually split into equal-sized zones. The zones are controlled automatically through your AWTS system using a water indexing valve that spreads the treated wastewater to a different zone every time the pump operates.

 

The Dangers Of Poor Irrigation

A good irrigation system is necessary on any property.

Whether you’re building a new home or figuring out ways to save water and alleviate water damage, it’s important to know just how significant the impact of poor irrigation can be on your home. All homeowners should consider installing an excellent quality irrigation system.

Below are some of the ramifications of having poor irrigation:

Damage to the Surrounding Concrete and Footpaths

Uncontrolled water from poor irrigation can eventually gather underneath or on top of concrete, causing it to become both aesthetically and structurally damaged. Paths in your garden, driveways, and even footpaths surrounding your home are at risk if subjected to continuous water build-up.

Higher Risk of Erosion

Excess water in your garden can cause topsoil runoff into surrounding drains. Not only does this significantly impact the environment, but it also means the root system of your lawn and plants is more likely to sustain damage due to losing the nutrients and protection that topsoil gives them.

Wood Rot and Termites

Poor irrigation may result in rotting wood around your property or home. Termites absolutely love rotting, moist wood so if you’ve got irrigation leaks around wood, you need to think fast and resolve the problem before it causes major structural damage.

Increase in Pests

It’s not just termites that might invade your property if you have poor irrigation. There’s also the chance that you’ll have an increase in spiders and rodents on your property due to the increased moisture.

Dryness

Contrary to all of the above, if you have an irrigation system that isn’t leaking but is not releasing enough or any water, then you are basically running with no irrigation at all. This can leave your property dry, kill plants and trees in your garden, and damage your lawn.

 

Garden Master provides environmentally friendly Septic Solutions and Subsurface Irrigation services for domestic and commercial properties across NSW, ACT and Victoria.

Garden Master offers only the highest quality residential septic tanks, secondary treatment systems (STS), and commercial-grade wastewater treatment systems. We have septic treatment systems with subsurface irrigation suitable for domestic homes, cabins, and commercial industries. We pride ourselves on customer service, meaning you won’t just get a one-size-fits-all approach with us but rather a tailored solution to suit your exact wastewater needs. With over 30 years of experience, you can rely on Garden Master to provide the best wastewater treatment products and services.

If you’re unsure what septic system would suit your property, check out our article, Septic Tank Buying Guide or get in touch for some friendly advice.

 

Related Articles
Planting on Septic Drain Field
Tips & Advice

What Plants Can You Plant Around A Septic System?

17 December 2021

There are many reasons to plant on your leach field. 

Plants can help your septic leach field function optimally by removing excess moisture and nutrients from the soil. Additionally, plant cover is essential to reduce soil erosion. At a minimum, the leach field should be turfed to provide these important benefits. Read our planting on Septic Drain Field advice below!

The tricky part, certain trees and shrubs can cause damage from their aggressive roots. In this article, you will learn which plants are the best and worst to grow over a septic system and drain field.

 

Septic Safe Plants

Planting on septic drain fields and around your septic system and leach field is not only permissible but advisable. Plants will prevent erosion and suck up some of the excess moisture from the drain field.

At the very least, grow a Tall Fescue grass or Kentucky Bluegrass, Tall Fescue and Kentucky Bluegrass are often mixed together and can both handle high water levels.

GRASSES

Botanical Name 

Carex spp
Juncea
Lomandra
Microlaena stipoides
Oplismenus imbecillis
Poa lab
Stipa spp.

Plant Size

Small grass/ground cover
Small grass/ground cover
Small grass/ground cover
Small grass/ground cover
Small grass/ground cover
Small grass/ground cover
Small grass/ground cover

Lomandra

Image: Lomandra Grass, courtesy of Flower Power Garden Centres

Plants Avoid Near Your Septic System

 

FAST-GROWING SHRUBS

Typically you should avoid planting on septic drain fields large, fast-growing trees. In addition, water-hungry shrubs and trees that aggressively seek out water sources can be some of the worst plants to plant as they will put your pipes in your septic tank drain field at risk.

LARGE TREES

If you plant a tree that can grow up to 5m, you can expect its roots to grow out to a distance of 5m from the tree’s base. The roots will always grow towards the water in your septic system and are strong enough to cause severe damage to your tank and pipes.

VEGE PATCHES OR HERB GARDENS

Do not grow vegetables, fruit trees, herbs or anything you intend to eat within 5m of your wastewater system. 

 

The plants that are being watered by your irrigation system must tolerate high amounts of water and nutrients. Seek advice from a horticulturalist or landscape gardener when choosing plants for your irrigation area.

GROUND COVER & CLIMBERS

Botanical Name 

Hibbertia procumbens
Hibbertia scandens
Hibbertia stellaris
Kennedia rubicunda
Scaevola albida
Scaevola ramosissima
Veronica plebeia
Viola hederacea

Plant Size

Climbing and spreading ground cover
Climbing and spreading ground cover
Climbing and spreading ground cover
Climbing and spreading ground cover
Climbing and spreading ground cover
Climbing and spreading ground cover
Climbing and spreading ground cover
Climbing and spreading ground cover

Viola hederacea

Image: Viola Hederacea, courtesy of Australian Plants Online

SEDGES, GRASSES & SMALL PLANTS 

Botanical Name 

Baumea acuta
Baumea articulata
Baumea juncea
Baumea nuda
Baumea rubiginosa
Baumea teretifolia
Brachyscome spp
Carex spp
Cotula
Crinum pedunculatum
Cyperus gymnocaulos
Dianella caerulea
Ferns
Gahnia spp
Juncus australis
Juncus spp
Lomandra spp
Patersonia fragilis
Patersonia glabrata
Patersonia occidentalis
Restio australis
Restio tetraphyllus
Sowerbaea juncea
Tetratheca juncea
Xyris operculata

Common Name

Sedge
Sedge
Sedge
Sedge
Sedge
Sedge

Sedge
Low plant

Sedge
Grass-like

Tall grass-like sedge
Sedge
Sedge
Grass-like

 

Sedge
Sedge

 

Grass-like

Dianella caerulea

Image: Dianella Caerulea, courtesy of Hello Hello Plants & Garden Supplies

SHRUBS

Botanical Name 

Bauera ruboides
Callistemon citrinus
Callistemon sieberi
Callistemon subulatus
Goodenia ovata
Kunzea capitata
Leptospermum flavescens
Leptospermum juniperinum
Leptospermum lanigerum
Leptospermum squarrosum
Melaleuca decussata
Melaleuca squamea
Melaleuca thymifolia
Pomaderris spp.

Plant Size 

0.5-1.5 m
1 m
1-2 m
1-2 m
1-1.5 m
1-2 m
< 2 m
1 m
1-2 m
< 2 m
1-2 m
1-2 m

Approx. 2 m

Melaleuca decussata

Image: Melaleuca Decussata, courtesy of Wildtech Plants

TREES

Botanical Name 

Abelia grandiflora
Acacia elongata
Acacia floribunda
Agonis flexuosa
Allocasuarina diminuta
Allocasuarina paludosa
Angophora floribunda
Angophora subvelutina
Baeckea linifolia
Baeckea virgata
Callicoma serratifolia
Callistemon linearis
Callistemon pallidus
Callistemon paludosus
Callistemon salignus
Callistemon viminalis
Casuarina cunninghamiana
Casuarina glauca
Elaeocarpus reticulatis
Eucalyptus amplifolia
Eucalyptus botryoides (coastal areas)
Eucalyptus camaldulensis (west of
ranges)
Eucalyptus cosmophylla
Eucalyptus crenulata
Eucalyptus deanei
Eucalyptus elata
Eucalyptus globulus (coastal)
Eucalyptus grandis
Eucalyptus longofolia
Eucalyptus pilularis
Eucalyptus punctata
Eucalyptus robusta
Eucalyptus saligna (coastal)
Eucalyptus tereticornis
Eucalyptus viminalis (ranges)
Eugenia smithii
Hymenosporum flavuum
Melaleuca armillaris
Melaleuca ericifolia
Melaleuca halmaturorum
Melaleuca hypericifolia
Melaleuca linariifolia
Melaleuca nesophila
Melaleuca quinquenervia
Melaleuca squarrosa
Melaleuca stypheloides
Melia azedarach
Pittosporum spp
Pultenaea daphnoides
Syzgium paniculatum
Tristania laurina
Viminaria juncea

Plant Size 

2-3 m
> 2 m
2-4 m
5-6 m
1.5 m
0.5-2 m
Large tree
Large tree
< 4m
< 4m
< 4m
> 2 m
> 2 m
> 2 m
3-6 m
3-6 m
10-20 m
6-12 m
Large tree
Large tree
Large tree
15-20 m

5-6 m
Large tree
Large tree
Large tree
Large tree
10-20 m
20 m
Large tree
Large tree
Large tree
Large tree
Large tree
Large tree
Large tree
3-6 m
3-4 m
6 m
4 m
2-3 m
< 10 m
2-4 m
5-7 m
6 m
6-15 m
15-20 m
2-3 m

8-10 m
3-5 m
2-3 m

Eucalyptus grandis

Image: Eucalyptus Grandis, courtesy of GardensOnline

Garden Master has been an industry leader for over 30 years, manufacturing, supplying and servicing quality wastewater treatment systems and septic tanks for thousands of clients across Australia.

Don’t hesitate to call us on 1800 632 582 with any questions!

 

Resources:

NSW Department of Local Government. 2000. The Easy Septic Guide. Developed by Social Change Media for the New South Wales Department of Local Government.

 

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