In accordance with Local Government Act 1993, all operations of on-site sewage management require a licence/approval to conduct such an activity. This licence/approval is obtained through the local Council.
Upper Hunter Shire Council has in excess of 2,500 homes that are not within Council sewered areas. Property owners that reside (permanently or temporarily) at these premises must ensure adequate wastewater management practices. Installing and maintaining an on-site sewage management system provides a means for this responsibility to be met.
Governance of the operation of an on-site sewage management system has been developed to provide regulatory agencies with tools to enforce compliance of wastewater treatment systems. This includes:
An on-site sewage management system (OSMS/OSSM), provides a means of disposing of human waste products from the toilet, bathroom and kitchen. Toilet waste is referred to as black water. Bathroom and kitchen waste is referred to as grey water.
The most commonly used design for an on-site sewage management system is demonstrated in the diagram below:
There are different designs of on-site sewage management systems available.
Primary Treated Systems are available as concrete and plastic septic tanks, grey water tanks and Aerated Wastewater Treatment Systems (AWTS). Primary systems do not treat black water/effluent. The effluent remains highly potent and requires disposal under the ground. For example in a trench, or evapo-transpiration area.
Secondary Treated Systems treat the effluent to a level that is safe to be dispersed through surface or subsurface irrigation.
Disposal areas for your on-site management system may be constructed as:
Consult with a wastewater specialist when choosing a new on-site sewage management system.
There are many various types of wastewater management systems and all work differently. Generally, wastewater (black and grey water) enter the septic tank and the solids settle over time. The effluent reaches the outlet of the system where it is either treated and/or disposed of in a disposal area.
Refer to NSW Health website for the different types of systems, or consult with your wastewater professional.
Most systems require the sludge to be periodically pump-out. For example, a family of 4 people living in a house will require a pump out at least every 5 years. But do not wait until the system is full. When the sludge level reaches 2/3 full, engage a licenced pump-out professional and arrange for a tankers to pump-out your system. They will dispose of the waste appropriately.
It is important that you do not remove the sludge yourself, or apply it to land. This increases the risk of the spread of disease by bacteria, viruses, parasites and other organisms in the wastewater, contamination of groundwater and surface water, pollution of waterways, degradation of soil and vegetation and decreased community amenity, caused by odours, noise and insects.
Council does charge for on-site sewage management systems. This fee is reflected on rates notices, and can be found at on Council’s website.
If you own an aerated wastewater treatment system (AWTS) you require quarterly services on your system to ensure they are working at optimal levels. Your service provider will charge a fee for service. That fee is determined by the service provider.
All owners and operators of on-site sewage management systems require, under the Local Government Act 1993, a licence/approval to operate the system. In order to obtain such approval, the appropriate regulatory authority (Council) must be satisfied that the system complies with appropriate legislation and guidelines. Visit the Office of Local Government website for more information.
Only the appropriate regulatory authority (Council) is able to provide you with a licence/approval to operate an on-site sewage management system. The service providers are there to maintain the system, and ensure it is working efficiently.
How many times does Council inspect my on-site sewage management system?
All inspections are based on the risk-rating of your land and the on-site sewage management system condition. The table below provides a guide to determining the risk of a system. If the buffer distances are met, then the risk is low. If only one minor buffer distances has not been met, but all others have, then the risk is medium. If the majority of buffer distances have not been met then the risk is high.
System | Recommended Buffer Distances |
---|---|
All land application systems | 100 metres to permanent surface waters (eg river, streams, lakes etc) |
250 metres to domestic groundwater well | |
40 metres to other waters (eg farm dams, intermittent waterways and drainage channels, etc) | |
Surface spray irrigation | 6 metres if area up-gradient and 3 metres if area down-gradient 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 | 6 metres if area up-gradient and 3 metres if area down-gradient of swimming pools, property boundaries, driveways and buildings |
Subsurface irrigation | 6 metres if area up-gradient and 3 metres if area down-gradient of swimming pools, property boundaries, driveways and buildings |
Absorption system | 12 metres if area up-gradient and 6 metres if area down-gradient of property boundary 6 metres if area up-gradient and 3 metres if area down-gradient of swimming pools, driveways and buildings |
*Environment & Health Protection Guidelines – On-site Sewage Management for Single Households (1998).
Over the years on-site sewage management systems have created potentially hazardous and life-threatening environmental disasters. Waterways and drinking supplies have been compromised with septic material leaking into them. Spread of disease was high with the failure of septic storage systems, which lead government authorities to tighten regulations to better management such systems.
The costs associated with having an on-site sewage management system, charged by Council, allow Council, who are the appropriate regulatory authority, to conduct inspections and assess your on-site sewage management system. These inspections are based on compliance with associated legislation such as the Local Government Act 1993 and Protection of the Environment Operations Act 1997. Council staff require training, both prior to commencement of a position and ongoing, within appropriate regulatory areas. Administration duties are required to hold and maintain records, all of which is covered by the fees you are charged.
Fees and charges for the current financial year are available on Council’s website, search for “On-site Sewer Management”.
You should engage a suitably qualified and experienced person to assess your failing on-site sewage management system. It may be a simple fix. Council officers are always available to provide you with advice also. If your system is due for an licence/approval, then it will require an inspection, which is covered by your rates charges. If this is the case, then a Council officer will be able to assist in diagnosing the potential problem and inform you about how to have it fixed, before you spent thousands of unnecessary dollars.
Steps to take when installing a new on-site sewage management system include:
To modify your existing on-site sewage management system, which may include installing a new disposal area or a new septic tank, you should:
Easy Septic Guide - a comprehensive easy-to-read 42 page booklet from the NSW Department of Local Government
Fees and Charges - Council’s website lists all fees and charges for the current financial year.
NSW Health website - a comprehensive list of the different types of sewage management systems and information on the accreditation process
NSW Department of Legislation - Local Government (General) Regulation 2005
Upper Hunter Shire Council is a local government authority and provides an extensive array of services including health and building; town planning; aged care; sporting and recreational facilities; roads; libraries; waste collection; airport facilities; saleyards; public venues; water; children, youth and families and tourist information.
PO Box 208
Scone NSW 2337
Phone: 02 6540 1100
Fax: 02 6545 2671
council@upperhunter.nsw.gov.au
135 Liverpool Street, Scone
34-40 Vennacher Street, Merriwa
47 Mayne Street, Murrurundi
After hours emergencies for roads, bridges, animal control,
water, sewer & landfill
Phone: 02 6540 1199