Management of potential environmental impacts
Sustainable dairy development
The NSW dairy industry recognises the importance of implementing environmentally sustainable development and management that enables it to thrive in regional communities.
This section outlines dairy development and operational principles that guide dairy businesses in identifying and assessing potential impacts of the development. These principles include siting, construction and operation activities considering impacts upon the surrounding environment and local amenity, and industry best management practices available to mitigate these.
As outlined in Section 5, a DA requires either a SEE or an EIS to be prepared. These planning application documents must incorporate an environmental management plan (EMP). An EMP outlines best management practices (measures) that will be used in the operation of the dairy system to plan for contingencies (emergency responses) and avoid, minimise or manage potential adverse environmental impacts and land use conflict. It is important that content of the EMP is well considered as it is often used by consent authorities or ARAs (for example, the EPA, WaterNSW) in preparation of the development and licensing conditions.
A construction management plan (CMP) may also be prepared to specifically address the construction components that need to be monitored and managed during the construction phase. This includes the clear identification of relevant contacts and conditions that are required under the DA determination. The following information can be used to help prepare or assess an EMP and CMP. For more technical information, refer to National Guidelines for Dairy Feedpads and Contained Housing.
Surface and ground waters
The NSW dairy industry relies upon good quality water for domestic and livestock consumption, irrigation of pasture and fodder crops, and operational purposes such as washdown and cooling. It is in the best interest of all dairy farm businesses and the communities in which they operate to protect the long-term viability and sustainability of this valuable resource.
Dairy producers have a legal responsibility to contain all dairy manure within their farm boundaries. Managing all manure streams (effluent (liquids), slurry, solids and bedding materials) and dairy complex storm water runoff so they are suitably
contained, managed and reused, reduces environmental risks to surface and groundwater, and delivers water and nutrient use efficiencies to the farm operation.
Appropriate management of risks to surface and groundwaters prevents:
- organic matter, contaminants, sediments and nutrients entering these systems
- deterioration of water quality (chemicals, heavy metals, nutrient overloading)
- risks to human health
- risks to stock health and welfare
- contamination of soils (chemicals, heavy metals, nutrient overloading)
- impacts to aquatic life and dependent and connected ecosystems
- degradation of terrestrial riparian life and ecosystems.
Manure and stock feed leachate are potential point sources requiring appropriate management, including:
- design and construction of a manure management system that is fit for purpose
- appropriate containment of calculated manure and stockfeed volumes
- appropriate determination of manure reuse areas and management of application to land as a nutrient source for agronomic purposes
- facilities that are designed and managed to minimise runoff or leaching.
Surface and ground waters - principles
Outcome: | The water quality of surface and groundwater systems is maintained or improved. Management 1: The dairy complex should be located at least 100 metres from a waterway and relevant WaterNSW licences are in place where necessary. Where this distance is not met, protection measures have been identified to justify development within this location. Management 2: The dairy complex should not be located within areas prone to flooding, high-water table, salinity risk or acid sulfate soils. Where this outcome is not achievable, protection measures have been identified to justify development within this location. Management 3: Dairy complex water requirements during operation should be determined, including an assessment of total water supply requirements against water licences, together with maximum daily demand and annual use limits. Siting should consider water access and transfer from water sources, and the impacts of these activities. |
Outcome: | Impact to surface and groundwaters from nutrient run-off or leaching is avoided. Management 1: The dairy complex manure management system (liquids, slurry, solids, bedding) is located, designed and operated under a fit for purpose Manure and Effluent Management Plan (MEMP) prepared by a trained effluent system designer or professional with demonstrated experience in applying Australian Standards and climatic data to system design. Management 2: Dairy facilities and the manure management system are designed and operated in accordance with:
These numbers must be clearly identified in any completed assessment. Management 3: Design of the dairy complex collects all run-off from within the complex by determining appropriate slope requirements and use of controlled and impermeable capture systems. Management 4: Dairy complex areas used to:
are designed to prevent storm and run-off water from the surrounding landscape entering the facilities. Management 5: The design of the manure management system includes determination of capture, separation and storage infrastructure and associated capacities in order to manage determined volumes of Management 1. Management˛6: Application to land management includes appropriate reuse of each manure stream (liquids, slurry, solids, bedding) based on site specific variables such as topography, soil type and fertility targets, and determined buffer requirements. Design livestock effluent systems The Australian dairy industry delivers the Design livestock effluent systems course nationally through Agriculture Victoria. Service providers who undertake the course need to successfully demonstrate competencies and performance criteria to become a trained effluent system designer. The primary source of technical information of this course is the Effluent and Manure Management Database for the Australian Dairy Industry (Dairy Australia, 2008). It sets the engineering and design standards for manure systems, and industry best practice for application to land reuse. Trained service providers have access to best practice formulas and calculators in the Effluent System Designer Toolkit. They are also required to regularly update their knowledge and skills. Dairy developers are strongly encouraged by industry to use an independent trained effluent system designer or professional with demonstrated experience. More information on the manure and effluent design training is available on Agriculture Victoria’s website. |
Outcome: | The dairy complex is designed and operated to prevent off-farm impact to surface or groundwater from nutrient run-off as a result of unexpected operational failure or rainfall events. Management 1: The manure management systems capture, holding and treatment capacities and design standards are outlined in the Manure Management and Effluent Plan prepared by a trained effluent system designer or professional with demonstrated experience. This includes a design for a 90th percentile rainfall contribution to the complex. Management 2: Effluent (liquid) is frequently applied at appropriate timings to maintain a minimum of 600mm ‘freeboard’ in manure treatment and holding ponds. This includes periodic desludging of ponds as well as ongoing irrigation or application to identified manure reuse areas. Management 3: Rainwater management systems are designed and installed within the dairy complex to maximise management opportunities. This may include separation of clean water and surface water systems so that use of the water can be determined by quality parameters. Management 4: The system minimises stormwater entering the dairy complex by providing diversion structures upslope from facilities, using natural topographic features where possible. Management 5: The system considers extreme emergency events and contains filtration capabilities where discharge from site to an approved stormwater discharge point is allowed, or for emergency storage drawdown procedures. Planning for NSW weather events Reducing rainfall entering the manure management system through installation of gutters on the roof of sheds or rainfall diversions of yarding (if appropriate) helps to limit the impact associated with high rainfall events. Installing gutters on dairy complex roofing reduces clean rainfall entering the manure management system and provides a source of high-quality for dairy use. It also reduces the need for larger storage capacity. A freeboard of at least 600mm should be maintained on manure liquid (effluent) ponds for safety and structural stability. If at any stage ponds have a reduced freeboard capacity, apply manure liquids carefully to avoid pond overspill. Long-term manure management system design and application to land planning also includes regular soil testing of application areas to assess nutrient level changes and adjust synthetic and organic fertiliser applications accordingly |
Outcome: | The dairy operation considers the ability to recycle liquids. Where feasible, liquids are efficiently used for washing concreted facilities and/or treated as a valuable nutrient source for agronomic purposes. Dairy Australia’s Fert$mart program provides for ongoing renewal of NMPs. The program uses Fertilizer Australia accredited Fertcare® advisors trained in the use of the Fertcare® technical standards for nutrient management planning on Australian dairy farms (Gourley CJP, 2020). Management 1: A nutrient management plan (NMP) is prepared within the MEMP to detail nutrients from manure sources (liquids, slurry, solids, bedding materials) and to specify appropriate application to identified manure reuse areas at the right rate and time to meet calculated plant demands and regional soil fertility targets. Where applicable, applications to land, monitoring and reporting are undertaken in accordance with EPL conditions. Management 2: Manure management systems have been designed to consider, and where appropriate, allow for the recycling of liquids as reuse washdown water for cleaning purposes on concreted areas within the dairy complex as part of the MEMP. Recycled manure cannot be used for hygiene/milk contact areas in accordance with FSANZ 4.2.4 Primary Production and Processing Standard Dairy. This standard is managed and audited through the relevant food quality assurance program of the dairy farm business. |
Outcome: | Manure solids and spent organic bedding materials (for example, woodchip, sawdust, straw, sands) generated are managed as a nutrient source for agronomic purposes, recycled or reused. Management 1: Bedding systems are managed for cow or calf occupation number and density, facility type, temperature and moisture content. Best management practices are undertaken as relevant in accordance with Section 9.7 of the National Guidelines for Dairy Feedpads and Contained Housing. Management 2: Organic bedding is managed to ensure a healthy surface condition. Where compost bedding is used, aeration (turnover) is undertaken 2 to 3 times as a part of daily operations. Where other bedding management systems are used, the type and volume are considered in the MEMP. Management 3: Manure solids are removed from hard surfaces or separated by the manure management system from liquids to be used as a valuable nutrient source for agronomic purposes. Management 4: Storage of spent organic bedding and manure solids is on impermeable flooring with drainage directed into the manure management system. Management 5: Where possible, immediate application to land of manure solids and organic bedding upon removal should be undertaken to avoid double handling, reduce the need for impermeable storage and maximise the nutrient value of the materials. When required, storage should promote drying and composting processes (if applicable), with consideration of decreasing nutrient value as storage time increases. Management 6: Applications to land are made in accordance with the MEMP, which specifies management actions for environmentally sustainable use of the material. Where appropriate, monitoring and reporting is undertaken in accordance with the MEMP and EPL conditions. |
Outcome: | Irrigation water use efficiency reduces loss of water, nutrient and sediment to local catchments and optimises crop and pasture production in irrigated dairy systems. Management 1: Design of a new or modified irrigation system is undertaken by a certified irrigation designer (CID) or suitably experienced person in collaboration with the farm agronomist. Management 2: The irrigation system is maintained to ensure effective and efficient operation. Management 3: Crop water requirements are determined to avoid over or under-watering, and to optimise soil moisture for strategic and efficient manure and nitrogen applications. Management 4: The irrigation system manager has capability to monitor water application rates and total crop use to adjust applications in accordance with plant uptake and forecasted weather. Management 5: Where a liquid manure (effluent) mix is applied through the irrigation system, water application decisions factor soil fertility levels to minimise nutrient build-up. These applications are in accordance with the MEMP. |
Outcome: | Ancillary infrastructure is located, constructed and managed to reduce the risk of nutrients or sediment entering surface or ground waters via runoff or leaching. Management 1: Siting of the dairy ancillary infrastructure considers surrounding environmental features such as topography, drainage and soil characteristics to avoid manure and sediment accumulation, and uncontrolled nutrient run-off. Management 2: Stormwater is diverted away from ancillary areas to avoid water pondage and nutrient and sediment run-off. Management 3: Commodity sheds and washing areas for feed equipment, machinery or vehicles are designed to retain water run-off for storage and reuse on the site, including being contained within a bunded area and constructed with an impermeable floor. Where possible, these should be located within the dairy complex controlled drainage area. See Section 8 – Traffic for more information on ancillary works related to roads. Note: Appropriate dairy guidance can be found in Victoria’s Impermeable lining design in animal production requirements (Victorian Department of Energy, Environment and Climate Action, 2023 (in review)). Industry specific guides provide best management practicesThe Environmental Guidelines – Use of Effluent by Irrigation (DEC, 2003) is used by consent authorities to determine application to land conditions. More recent Australian dairy industry best management practice resources that consider typical dairy systems and operations are also useful references:
|
Soils
Healthy soils are key to any dairy system, helping to grow sustainable and productive pastures, crops and cows. This is achieved through careful soil fertility planning and management practices that reduce cultivation, compaction and anaerobic conditions. Factors like soil type, slope, topography, area (size) and accessibility are important when applying nutrients from manure sources to reuse areas.
Similarly, managing soils within the dairy complex during both construction and operation is important to ensure responsible environmental management, adequate storage requirements and reduced erosion and sediment movement. Soil permeability and construction constraints need to be considered in relation to dairy complex facility siting, design and construction methods. By siting and designing developments that complement the local landscape, earthworks can be minimised.
Appropriate management prevents:
- unintended creation of point sources of nutrients within the dairy complex
- excessive build-up of nutrients on grazing areas
- contamination and degradation of soils
- uncontrolled runoff of sediment into surface waters
- uncontrolled infiltration of poor-quality water to groundwater systems
- erosion of landscapes, especially steep or undulating areas
- acid sulphate soil disturbance
- Aboriginal cultural heritage disturbance.
Soils - principles
Outcome: | The likelihood of risk to the environment from impacts to soils is reduced through sound design and management. Use of natural site characteristics is optimised to minimise soil disturbance. Management 1: Assessment is undertaken to identify existing site and surrounding features to be optimised, protected or managed in the design and operation of the dairy development. This should consider historical land use mapping to identify potentially contaminated, acid sulphate, saline and prone to waterloging. Management 2: The dairy development considers soil type, soil capabilities and site constraints in siting, design and operation. Soils are assessed to determine suitability and to choose site-specific construction materials and methods. Management 3: Consideration of related principles for surface and ground water and Aboriginal heritage are undertaken. See Chapter 5 – Site investigation and earthworks – of the National Guidelines for Dairy Feedpads and Contained Housing. |
Outcome: | Risks to the environment from soil and sediment loss are minimised. Management 1: Earthmoving and construction works are undertaken in accordance with a site-specific Soil and Water Management Plan or Erosion and Sediment Control Plan, prepared in accordance with Volume 1: Managing Urban Stormwater: Soils and construction, 4th edition (“Blue Book”) (Landcom, 2004). The plan considers the scope of works and is specific to the soils and geotechnical investigation recommendations of the development. See Guidelines for Erosion & Sediment Control on Building Sites (DLWC, 2001) and Chapter 5 – Site investigation and earthworks of the National Guidelines for Dairy Feedpads and Contained Housing. |
Outcome: | Soil and sediment runoff is prevented, or measures are in place to control and minimise impact to the environment. Management 1: High risk erosion areas are identified, and management strategies are in place to control or minimise the risks of runoff. Management strategies and physical features include (but are not limited to): laneway cut-outs, sediment bunds, concrete nib-walls and sloping/re-contouring the land. Management 2: Stock grazing and movements are managed to reduce the risk of erosion and sediment generation, especially during heavy rainfall or prolonged wet weather events. Management strategies include (but are not limited to): reduced stocking densities, containing cows on feed pads to avoid pugging and damage to vegetative cover, grazing alternative paddocks, and for improved long-term management, fencing and revegetation of high-risk erosion areas (gullies, riparian areas and drainage lines). |
Waste
Dairy operations generate a number of waste streams that must be appropriately managed to protect natural landscape assets (waterways, biodiversity areas), prevent pests, disease and weeds, and to ensure the safety and health of both humans and animals.
General waste does not include manure, bedding or mortalities as long as these remain on site. These are managed through other risk management principles. If manure is removed from site, it is defined as waste and must meet requirements under an exemption or the obligations under the POEO Act (see Section 9.6 Biosecurity, Principle 4).
Appropriate management of farm wastes prevents:
- property devaluation
- contamination of soils and water resources
- breeding sites for disease spreading mosquitoes, pest animals and predators
- contamination of home grown or imported stored feed
- human and stock injury, health issues or death
- offensive odours to sensitive receptors
- penalties and clean-up costs from poor management.
Dairy operations can manage waste by safely:
- reusing, recycling or transporting general rubbish off-farm
- disposing or recycling silage plastic (bale wrap and pit covers)
- washing, handling, storing and transporting of chemical containers to reuse and recycling programs
- disposing of products used for cow health (for example, pharmaceutical products, administering devices, teat and footbath liquids)
- storing and using tyres for feed storage
- managing milk unsuitable for human consumption or use on the farm as calf feed.
Waste - principles
Outcome: | Dairy operations minimise contributions to landfill and reduce potential impacts to waters and land. Management 1: Purchase decisions are made to avoid excessively packaged and single-use products. Priority is given to reusable, repairable, refillable or recyclable products. Management 2: Rubbish is frequently sorted in a contained area to be reused, recycled or disposed to landfill without impact to sensitive receptors, waters or land. |
Outcome: | Dairy operations minimise contributions to landfill and reduce potential impacts to waters and land. Management 1: Silage plastics and polypropylene twine are packed in separate UV stable plastic bags (for example, Plastic Forest), or reusable or recyclable bags that can exclude rain and pests. Preparation, including residue cleaning, storage and transport is undertaken in accordance with local council advice or Dairy Australia’s national Silage Plastic Recycling Scheme. |
Outcome: | Dairy operations minimise waste to landfill and reducing potential impacts to waters, soil and biodiversity. Management 1: Non-returnable metal or plastic containers, with an eligible drumMUSTER logo and declared content capacity of between 1L/kg to 205L/kg are prepared, including residue cleaning, stored and transported in accordance with eligibility and cleanliness standards. Management 2: Intermediate bulk containers (IBCs) are returned, for reconditioning and recycling through proprietary programs where available (for example, Schutz Australia). See www.drummuster.org.au/container-recycling/the-abcs-for-youribcs. |
Outcome: | Management 1: Tyre piles and silage are stored to minimise impacts:
See Fire Safety Guideline – Guideline for bulk storage of rubber tyres (Fire & Rescue NSW, 2014). Management 2: Volume and number of tyres stored on farm is undertaken in accordance with relevant consent from the EPA and/or local council. If storing more than 5 tonnes of waste tyres or 500 waste tyres (or waste tyre products) on site, Schedule 1 to the POEO Act states that an EPL is required. Advice should also be sought from the local council or the appropriate planning authority on any required consents. See: https://www.epa.nsw.gov.au/your-environment/waste/industrial-waste/tyres |
Outcome: | Dairy operations have sound contingency plans for the safe disposal of milk unsuitable for human consumption without impact to environment, human health and animal health. Management 1: Milk is diluted to a ratio of 1-part milk to 10-parts water and irrigated to dry, recently grazed pasture to allow for optimal soil penetration prior to next grazing. Management 2: Irrigation areas should be well clear of waterways and moved frequently to avoid run-off and off-farm impacts. A general approach is not within 20 metres of a waterway and not to paddocks that are likely to flood, have a steep slope or that are irrigated over community drains and waterways. Management 3: Where milk is free from antibiotics, it may be fed to livestock. The milk must be contained, stored and fed so it remains on-farm and does not spoil. See Chapter 5.1. Milk and other dairy products of the AUSVETPLAN Operational Manual: Disposal (AHA,2021) for emergency animal disease response. Note: Directing milk to manure holding ponds should be avoided as it can produce odours and reduce optimal functioning of the system. If there is no alternative, a properly designed 2-pond system can cope with milk from 2 consecutive milkings. |
Community amenity
Nuisances are exacerbated by frequency, strength and duration of exposure. A well sited, maintained and managed dairy farm will limit all 3 while operating a highly efficient system.
Noise, odour, dust and light transmission to sensitive receptors are affected by contributing factors such as weather conditions, local topography and physical barriers. Sensitivity is also influenced by factors including the attitude of the community towards the facility and the time of day when activities happen especially if they happen during night, early morning or evening periods. Appropriate management of amenity impacts prevents:
- complaints against dairy systems from located sensitive receptors
- disturbance to local wildlife (for example, noise or lighting disturbing flight paths) or the environment upon which they rely for food and shelter
Community amenity - principles
Outcome: | Dairy operations are conducted in regional communities with minimal disturbance to the local people and their environment. Management 1: The dairy complex or new facilities within an existing dairy complex are sited in consideration of sensitive receptors and, where relevant, in accordance with the separation distances as determined. Where calculated separation distances are not met, agreements between parties may be considered to justify a reduction in distance. Management 2: Where relevant or identified as required via the DA pathway, an Odour impact assessment and management plan (Odour Report) is prepared by a suitably qualified and experienced provider in accordance with the Technical Notes- Assessment and management of odour from stationary sources in NSW (DEC,2006). The relevant separation distances from sensitive receptors should be clearly identified. An assessment of odour impact may be required as part of any feedpad or contained housing (Dairy (restricted)) development proposal. Assessments will vary depending on the type of facilities, scale and location of the development. A Level 1 (‘S-Factor’) odour impact assessment calculation is used for most developments, however, a Level 2 (modelling) or Level 3 (site specific complex modelling) may be required pending the results of the preceding assessment and the development location. Justification of the management factor used in the Level 1 assessment must be included. This factor should reflect the type of proposed development. Dairy development types vary significantly and are not aligned with the assessment procedures for cattle feedlots (Section 7, Technical Notes (DEC, 2006)), mostly used to determine separation distances. Where significant system variation in development type occurs from current industry practice, approval should be gained to use other assessment methodology, such as the Victorian multi-species variable separation distance formula within the state’s animal production separation distance requirements (Victorian Department of Energy, Environment and Climate Action, 2023 (in review)). These may be more reflective of assessment factors used for dairy development. This formula is tailored to dairy design standards and operating scenarios. Management 3: The dairy facility is operated in accordance with the total number of cows, and the facility type for which it has been assessed, designed, sited and approved. This must be clearly identified. Management 4: Manure management and composting systems are designed to effectively manage the determined annual and seasonal peak manure and organic matter volumes outlined in the MEMP, with contingency allowance, to prevent off-farm odour impacts. Management 5: Siting and design consider annual and seasonal prevailing winds, including the need for noise and odour barriers (vegetative or material), if required and in accordance with the Technical Notes – Assessment and management of odour from stationary sources in NSW (DEC, 2006) or the Noise Guide for Local Government (Section 2.1 – Agricultural noise, NSW EPA, 2023) and local Development Control Plans. If the premises requires an EPL, noise is assessed according to the Noise Policy for Industry (NSW EPA, 2017). |
Outcome: | Dairy operations are conducted in regional communities with minimal disturbance to the local people and their environment. Management 1: Dairy complex facilities, manure management system and manure reuse areas are managed to minimise air quality impacts to the surrounding environment and where relevant in accordance with the Odour Report. Management 2: Manure reuse areas, manure application rates, and timing of manure application to land are made and monitored in accordance with the ongoing MEMP or NMP. Wind direction and velocity, daily temperature and time of day are considered when scheduling application to manure reuse areas. Optimal application conditions are downwind of sensitive receptors, or preferably midmorning to afternoon with no heavy rainfall forecast. If the premises holds an EPL, licence conditions for air quality must be complied with. Management 3: Generation of dust is minimised by managing vegetation cover on paddock surfaces, maintaining protective cover over feed storage facilities and minimising traffic movements on dry and windy days. Surfaces of high traffic laneways, holding yards, parking areas and loading areas are maintained to allow safe entry, all weather access and minimise dust and sediment generation. Management 4: Spoiled feed, milk unsuitable for human consumption and general waste (see Section 9.4) is removed as soon as possible following generation from storage areas to reduce the intensity and duration of odour exposure to potential sensitive receptors. Management 5: System design and operation considers regular and suitable cleaning and management intervals to manage and reduce odour on site. This includes undertaking maintenance of manure and composting systems and applications to avoid early mornings and late nights, and reviewing prevailing winds prior to commencing activities. |
Outcome: | Dairy operations are conducted in regional communities with minimal disturbance to the people, native fauna and environment. Management 1: Dairy complex facilities, access points, high traffic laneways and car parks are located to prevent or minimise noise impacts to sensitive receptors. Where sensitive receptors may be impacted, minimum separation distances and buffers may be determined by a noise impact assessment and management plan (Acoustics Report). Management 2: Noise rating is considered in purchase of vehicles, machinery and equipment. Maintenance is scheduled to ensure optimal operational performance. Management 3: Dairy complex operations are conducted to minimize activities and traffic movements during times when receivers are more sensitive. Schedule deliveries during daylight hours or as specified in any conditions of consent. Where this is not possible (for example, milk tanker pick-ups), mitigation and management measures detail how impacts to sensitive receptors will be minimized and managed. Management 4: Where identified as advised or required, an Acoustic Report is prepared by a suitably qualified or experienced consultant in accordance with the Noise Policy for Industry (NSW EPA, 2017). Management 5: Where an Acoustic Report is prepared and approved, noise mitigation and management measures are implemented in accordance with the recommendations. Guidance for the management of noise includes: the Noise Guide for Local Government (Section 2.1 Agricultural noise, NSW EPA, 2023), and the Noise Policy for Industry (NSW EPA, 2017) associated with agricultural industries. If the premises holds an EPL, licence conditions for noise must be complied with. Management 6: Surfaces of internal vehicle high traffic lanes, loading areas and car parking spaces are maintained to allow safe entry, all weather access and minimise generation of noise and vibration. |
Outcome: | Dairy operations are conducted in regional communities with minimal disturbance to the local people, native fauna and environment. Management 1: Buildings and works are sited and designed to:
Management 2: Access points, high traffic laneways and car parks are located or screened to prevent stray lighting from vehicles to nearby sensitive receptors. If necessary, vegetation, earthen banks and constructed walls are used. Management 3: Lighting for dairy operations and security is strategically located and shielding is used, if required, to prevent light spill to surrounding sensitive land uses. Where possible, sensors are used to control lighting durations. Lighting should be designed and installed in accordance with relevant Australian Standards. |
Biosecurity, pests and diseases
Under the Biosecurity Act 2015 (NSW) there is a general obligation to take action to prevent the introduction and spread of pests, diseases, weeds and contaminants. The general biosecurity duty can be found in Part 3 of the Act. Specifically, section
22 of the Act provides:
Any person who deals with biosecurity matter or a carrier and who knows, or ought reasonably to know, the biosecurity risk posed or likely to be posed by the biosecurity matter, carrier or dealing has a biosecurity duty to ensure that, so far as is reasonably practicable, the biosecurity risk is prevented, eliminated or minimised.
Landowners or managers therefore have a general biosecurity duty to prevent, eliminate or minimise biosecurity risks by taking action to prevent the introduction and spread of pests, diseases, weeds and contaminants. The Australian dairy industry recommends that all dairy farmers should have a biosecurity management plan. Generally, a plan is a tool to reduce incursions
entering the farm and outlines processes to identify these risks and proactively or responsively manage them. It may include other supporting plans, such as a weed management plan.
If you suspect an outbreak of an emergency or notifiable animal disease, call the Emergency Animal Disease Watch Hotline on 1800 675 888.
Definitions under the Biosecurity Act 2015
Prohibited matter refers to a defined list of pests and diseases that are outlined in the Biosecurity Act 2015 (NSW) including diseases that are exotic to Australia (such as foot and mouth disease), diseases that are exotic to New South Wales but present in other parts of Australia (such as devil facial tumour disease) and other emergency animal diseases that can have serious consequences to animal or human health (such as Hendra virus infection and anthrax).
Other listed notifiable pests and diseases of animals includes endemic animal diseases already present in NSW such as Johne’s disease. This list is detailed in Schedule 1 to the Biosecurity Regulation 2017 (NSW).
A biosecurity event includes new or emerging disease events, a significant disease event from a listed notifiable disease (other than prohibited matter), prohibited feed events such as feeding restricted animal material (RAM)* to ruminants, or chemical contamination events. The Biosecurity Regulation 2017 also declares the following to be biosecurity events in animals:
- the appearance of ulcers and blisters on the mouth or feet and skin nodules of ruminants
- an unexplained and significant increase in a mortality rate (death) or morbidity rate (illness) in animals
- an unexplained and significant fall in production relating to animals
- the appearance of other unexplained and significant clinical signs in animals including, but not limited to, unexplained neurological signs or conditions.
Invasive weeds are also known as biosecurity matter or priority weeds. Priority weeds are plants that have the potential to pose a biosecurity risk to human health, the economy, liveability and the environment. There are state and regional priority weed prevention and control obligations that are enforced by Local ControlAuthorities (local councils). Local councils or Local Land Services officers provideup-to-date information on priority weeds. They also have resources such as the Weeds of the North Coast of NSW – A guide to identification and control (LLS, 2021).
*Note – Restricted animal material (RAM) means any material derived from a vertebrate. RAM includes rendered products—for example, blood meal, meat meal, meat and bone meal, fish meal, poultry meal, feather meal, and compounded feeds made from these products (Biosecurity Regulation 2017 (NSW)).
Biosecurity, pests and diseases - principles
Outcome: | Dairy operations are conducted in regional communities with minimal disturbance to the local people and their environment. Risk to the dairy operation and production is reduced through good design and management systems. Management 1: The design of dairy complex facilities includes best management practices to prevent and monitor livestock disease incursion and spread, drawing upon guidance from the Managing biosecurity risks in land use planning and development guide (NSW DPI, 2020). Management 2: The design of dairy complex facilities includes areas for quarantine and safe management of livestock demonstrating irregular health conditions. |
Outcome: | Dairy operations protect property, livestock, the dairy industry as well as the broader community from the spread of disease, pests and weeds. Management 1: A biosecurity management plan is prepared and implemented using Dairy Australia’s readily available biosecurity resources. The plan is reviewed and updated annually in accordance with the review requirements. Note: There are specific requirements relating to signage and people entering a farm in NSW that has a biosecurity management plan in place. See: https://www.dpi.nsw.gov.au/biosecurity/your-role-inbiosecurity/primary-producers/biosecurity-management-plan. Management 2: Staff and visitors to the site are inducted and are aware of their obligation to comply with the biosecurity management plan, including hygiene protocols such as parking/walking in designated areas and washdown/bathing of footwear and vehicles/machinery. Management 3: A weed management plan is prepared and implemented including consideration of state and regional priority weeds declared under the Biosecurity Act 2015 and integrated pest and disease management principles integrated wherever possible. The plan is reviewed and updated annually. Management 4: The farm business maintains accreditation under the requirements of their processor or individual Quality Assurance Program. Management 5: The farm business meets requirements of the National Livestock Identification Scheme (NLIS). Dairy operators are audited annually against the Dairy Food Safety Scheme to ensure they meet requirements set out in the Food Act 2003 (NSW), Food Regulation 2015 (NSW) and FSANZ 4.2.4 Primary Production and Processing Standard Dairy. The NSW Food Authority oversees the auditing of licensed food businesses in NSW (including dairies) that are required to have a regularly audited food safety plan (FSP). Certain milk processors operating in NSW have company specific quality assurance programs that stipulate the content of the supplying dairy farm FSP, and auditing processes and frequency. QA programs safeguard against residues (for example, chemical, antibiotic, pathogenic) entering the milk supplied for human consumption. |
Outcome: | Chemical storage, transport and use does not impact the health of humans, animals or the surrounding environment. The dairy is able to supply a quality product for the market. Management 1: Pesticide use meets the requirements of the Pesticides Act 1999 (NSW) and the Pesticides Regulation 2017 (NSW). Management 2: Veterinary medicine use meets the requirements of the Stock Medicines Act 1989 (NSW) and the Stock Medicines Regulation 2019 (NSW). Management 3: Only chemicals registered or permitted by the Australian Pesticides and Veterinary Medicines Authority (APVMA) are used in accordance with the product label and/or APVMA permit (MRL) for the product. Management 4: Products are stored bearing the approved label in appropriately bunded, aerated and locked storage facilities. Records are maintained in accordance with the relevant regulation. Management 5: Product mixing, application/use and disposal is undertaken in accordance with the product label and recorded in accordance with the Pesticides Regulation 2017 (NSW) (Part 4, 36 & 37, Part 6 52-55) and/or the relevant QA program of the dairy business. Management 6: Those handling chemicals have a current ChemCert AQF 3 Accreditation recognised by the EPA to use, purchase and spray restricted chemicals under the Pesticides Act 1999 (NSW). Management 7: All activities regarding storage, transport and use of chemicals and veterinary medicines on farm are in accordance with the requirements of the Work Health and Safety Act 2011 (NSW) and meet the specific hazard and risk requirements of the Work Health and Safety Act Regulation 2017 (NSW). Procedures are guided by WorkCover NSW’s information guides, Code of Practice 2006: Safe Use and storage of chemicals (including pesticides and herbicides) in Agriculture (WorkCover NSW, 2006) and Code of Practice 2005: Storage and handling of dangerous goods (WorkCover NSW, 2005). |
Outcome: | Dairy operations reduce risks to livestock through safe use of farm generated organic materials used within the complex or on the milking platform. Management 1: Stockpiling of farm generated organic matter is isolated from livestock areas and monitored and managed to prevent disease or weed incursion. If transferred off-site, please refer to EPA Resource Exemption – The compost exemption 2016. Management 2: Composting methods and application to land of the compost as a soil amendment at the generating dairy operation is undertaken in accordance with industry best practice (chapter 7 of National Guidelines for Dairy Feedpads and Contained Housing). |
Animal mortalities
Animal mortalities - principles
Outcome: | Dairy facilities are designed and operated to safeguard against potential impacts to the environment, human health and animal health. Management 1: Cause of death is determined by a veterinarian and in the event of suspicious, unexpected or notifiable animal disease, the Local Land Services District Veterinarian is notified and notification is undertaken in accordance with NSW DPI Primefact Notifiable pests and diseases of animals in NSW (Primefact 1565 (edition 4), NSW DPI, 2020). Management 2: All livestock burial, composting and cremation is undertaken by using the information provided in NSW DPI Primefact Managing animal carcass disposal (Primefact PUB21/202 (edition 2), NSW DPI, 2021). Management 3: Mortality management areas are assessed and sited to protect sensitive environmental factors particularly local surface and groundwater resources and sensitive receptors. Management 4: Mass mortality management procedures have been developed and can be efficiently and effectively implemented in an emergency response situation. See: Biosecurity – Managing significant endemic diseases of animals and Biosecurity - Pests and diseases of animals – investigation and alert phase of an emergency response |
Biodiversity
Biodiversity regulation in NSW is complex. There are many layers of legislative requirements, regulations and codes that must be considered when proposing development that may impact on native flora and fauna. See Section 8 – Biodiversity and Native Vegetation Clearing for more information on obligations under the regulations.
Appropriate management of biodiversity means:
- Protection to ensure no net loss of local native vegetation or wildlife. Native vegetation includes all trees, shrubs, scrub, understorey plants, groundcover and plants in a wetland that are native to NSW. In some circumstances the definition of native vegetation extends to dead plants.
- No clearing of native vegetation on rural land, riparian zones or wetlands unless notified/certified/allowable under the Environment Protection and Biodiversity Conservation Act 1999 (Commonwealth), Biodiversity Conservation Act 2016 (NSW), Local Land Services Act 2013 (NSW), or the Land Management (Native Vegetation) Code 2018 (NSW).
- No adverse impact upon local native flora or fauna, riparian zones or wildlife from loss of nutrients and sediment from point sources, and waste or fire encroachment.
- Increasing the quality of existing native vegetation areas (i.e. sensitive and vulnerable land) or revegetation of sensitive and vulnerable land through protection and planting of local native and structurally diverse species to improve wildlife habitat within the local catchment.
Biodiversity - principles
Outcome: | Dairy operations minimise the likelihood of impact upon local water catchments and support the protection of native flora, fauna and habitat. Management 1: The biodiversity conservation mitigation hierarchy* is applied to all dairy development and operational activities in consultation with relevant local council and Local Land Services officers:
If any residual impacts remain after the implementation of the first 3 steps, biodiversity offsetting off site is considered. *International Finance Corporation (2012), Performance Standard 6 – Biodiversity Management 2: Pest and weed controls are undertaken, in accordance with the Pesticides Act 1999 (NSW), within 20 metres of sensitive vegetation communities, riparian zones or wetlands, in consultation with relevant local council, catchment management and NSW Local Land Services officers. Management 3: Nutrient and sediment run-off into areas of native vegetation is avoided through controlled storage, stockpiling, reuse and application management (see Sections 9.2 Surface and Ground Waters and 9.2 Soils). |
Outcome: | Proactive planning minimises the likelihood of impact upon local water catchments and supports the protection of native flora, fauna and their habitat. Management 1: Biodiversity, riparian and wetland sensitive areas, especially those declared as vulnerable or endangered ecological communities under Commonwealth and State Acts, are identified and protected with fencing and management access gates. Fencing is constructed in accordance with best management practice and Allowable activities relating to rural infrastructure (LLS, 2014) under the Land Management (Native Vegetation) Code 2018 (LLS, 2018). Remediation to enhance quality and habitat creation is undertaken through appropriate revegetation techniques with species native to the area and vegetation community. Management 2: Vulnerable lands such as erodible embankments, gullies and landslips are identified, protected and revegetated using local native and structurally diverse species to provide stabilisation, run-off filtration and habitat services. Works undertaken within these areas should also consider any obligations for a controlled activity |
Climate change and greenhouse gas emissions
The NSW dairy industry has a role to play in meeting the requirements of the Climate Change (Net Zero Future) Act 2023 (NSW) and the emerging policies, frameworks, plans and strategies being prepared to support action in NSW and nationally.
The EPA Climate Change Policy (NSW EPA, 2023) provides an overview of the NSW environment protection legislation and regulation for climate change and protecting the environment. Livestock-intensive activities that meet any threshold at which an
environment protection licence is required are covered by the EPA’s regulatory remit, including regulation of greenhouse gas emissions.
EPA’s Climate Change Policy and Action Plan 2023–26 outlines action to help the NSW Government achieve its greenhouse gas emission reduction targets. New projects or major modifications expected to have large scope 1 or scope 2 greenhouse gas emissions (>25,000 tonnes CO2e/year for new projects or modifications that are expected to add an additional 25,000 tonnes CO2e/year to a facilities emissions) must include a greenhouse gas assessment within their environmental impact assessment. This includes assessing expected greenhouse gas emissions and measures to mitigate emissions over time. Similar requirements will be extended to all or most development proposals that require consent and an EPL at some stage. Existing licensees should refer to the Fact sheet: Climate Change Policy and Action Plan - information for proponents and licensees (nsw.gov.au).
*Scope 1 and 2 greenhouse emissions are derived directly from farm activities and from off-farm
Considerations and possible management activities in design, operation, energy generation and storage, and greenhouse gas emissions abatement and mitigation for dairy systems are outlined in Chapter 13 – Energy efficient systems of the National Guidelines for Dairy Feedpads and Contained Housing.
Appropriate management considerations include:
- designing facilities to optimise site opportunities such as air-flow, gravity and sunlight
- undertaking an energy audit to identify energy savings to reduce the level of investment needed for renewable energy
- selecting energy efficient vehicles, machinery and equipment that are fit for purpose
- selecting renewable energy technologies including solar and feasible anaerobic digestion
- reuse of nutrients generated on-farm (all streams of manure) to reduce synthetic fertiliser inputs
- frequent irrigation of manure onto land to minimise methane production in storage facilities
- feeding a cow diet to optimise feed efficiency conversion
- identifying areas on farm to offset through vegetation sequestration.
Climate change and greenhouse gas emissions - principles
Outcome: | Dairy businesses know their net greenhouse gas emissions and emission intensity as a benchmark to better understand the farm’s emission profile and reduction management practices available to the business. Management 1: Use the ADCC to determine current net greenhouse gas emissions and emissions intensity and/or forecast emissions intensity based on the development and operational changes planned for the business. Management 2: Use supporting Dairy Australia resources to identify and implement changes that will profitably reduce emissions. |
Australian Dairy greenhouse gas resources
Australian Dairy Carbon Calculator | Dairy Australia
Climate and carbon fact sheet | Dairy Australia
Heritage
When planning a dairy development or undertaking works relating to the dairy system, particularly works that disturb the ground or remove vegetation, the potential for harm or impact to Aboriginal objects and places must be considered. Areas that have a higher potential for harm are undisturbed areas, areas within 200m of landscape feature such as waterways, caves and sandhills, or when removing vegetation with scars or marks.
See Section 8 – Aboriginal cultural heritage for obligations when undertaking ground disturbance and vegetation removal.
Heritage - principles
Outcome: | Dairy operations identify, consider and minimise the likelihood of impact to Aboriginal objects and places. Management 1: Ground disturbance activities that are not low impact, trivial or negligible are reviewed in line with the Due Diligence Code of Practice for the Protection of Aboriginal Objects in NSW (DECCW, 2010). Management 2: Assessments consider impacts to Aboriginal cultural heritage that are appropriate for the location, level of disturbance and potential to impact on sensitive areas are undertaken as part of any application and prior to the activity commencing. Management 3: Consultation is undertaken in accordance with the SEARs and legislated requirements with Aboriginal Groups as part of any assessment for a greenfield development site. |
Related Links
- National Guidelines for Dairy Feedpads and Contained Housing
- Effluent and Manure Management Database for the Australian Dairy Industry
- Agriculture Victoria’s website
- Fertcare® technical standards for nutrient management planning on Australian dairy farms
- Impermeable lining design in animal production requirements
- Feedpads-and-contained-housing-guidelines.
- fertilizer.org.au
- Australian dairy irrigation guide
- Guidelines for Erosion & Sediment Control on Building Sites
- Silage Plastic Recycling Scheme
- Container Recycling
- Fire Safety Guideline – Guideline for bulk storage of rubber tyres
- NSW EPA: Wastetyres
- AUSVET PLAN Operational Manual: Disposal
- Technical Notes- Assessment and management of odour from stationary sources in NSW
- Noise Guide for Local Government
- Noise Policy for Industry
- Dark Sky Planning Guideline
- Biosecurity Act 2015
- Biosecurity Regulation 2017
- Managing biosecurity risks in land use planning and development guide
- Biosecurity Management Plan
- National Livestock Identification Scheme
- Current orders and exemptions - EPA
- National Guidelines for Dairy Feedpads and Contained Housing
- Notifiable pests and diseases of animals in NSW
- Animal carcass disposal
- Managing significant endemic diseases of animals
- Biosecurity pests and diseases of animals
- Due Diligence Code of Practice for the Protection of Aboriginal Objects in NSW
- EPA Climate Change Policy (NSW EPA, 2023)
- Climate Change Action Plan 2023-26
- Fact sheet: Climate Change Policy and Action Plan - information for proponents and licensees
- Dairy Australia resources
- Australian Dairy Carbon Calculator | Dairy Australia
- Climate and carbon fact sheet | Dairy Australia