Farm dams are the most common way to store water for non domestic use on rural properties, while the NSW Farm Dams Policy permits landholders to construct a farm dam on a hillside or minor stream, up to a certain capacity without the need for a licence, there are a number of restrictions relating to the construction of farm dams. It is recommended to contact your Local Council and the NSW Department of Water and Energy before undertaking any dam building activity.
Water Quality
Water quality not only affects the natural environment, but the suitability of water for irrigation, livestock, farm equipment, domestic use, and other general farm activities. There are a wide range of factors that influence water quality. These include temperature, pH, dissolved oxygen, phosphorus, nitrogen, hardness, salinity, turbidity, taste, odour, potential pathogens and algal growth. How you manage your property will have a big influence on water quality. For example, intensive horticulture and high stock levels can produce waste water and effluent high in nutrients (which can cause algal blooms and spread of weeds), while maintaining or revegetating buffer zones around water bodies help to maintain water quality by preventing excessive nutrients or sediment from entering the water. Native vegetation around water bodies also provides shade keeping water temperatures low, which is important for fish habitat and reducing evaporative loss.
Water Management
Things you can do to maintain and improve water quality on your property and lessen off site impacts include:
- Fence off water bodies to exclude livestock
- Prevent runoff of high nutrient animal waste entering waterways
- Prevent soil compaction through stock management and grazing rotation
- Recycle waste water through an artificial wetland
- Buffer dams and wetlands with native vegetation to slow water flows, intercepts nutrients, and prevent erosion
- Reduce soil erosion through maintaining groundcover and placement of contour banks to slow water in high rainfall events
- Only apply fertilisers and pesticides at recommended rates to minimize runoff into water sources
Waste Water Management
Greywater is the waste water from your shower, bath, spa, hand basins, washing machine, and other domestic use, with the exception of toilets. Greywater systems can be used to flush toilets and water gardens and save hundreds of litres of fresh water but must be treated if you want to store it. Use washing powders and detergents which contain no phosphates and salts.
Septic sewage systems can be a significant source of water pollution in rural residential areas. Septic tanks need regular maintenance and can leak high levels of nutrients an pathogens to your property if they are not checked and looked after. Alternatively, installing a waterless toilet will reduce the amount of domestic water you require and the waste water and effluent you produce. Contact your Local Council regarding permits and policies related to greywater reuse and waterless toilets on your rural residential property. NSW Health also provide accreditation information for on-site single domestic wastewater management systems.
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