09036: Implementing the Vasse–Wonnerup Geogrpahe Bay Water Quality Improvement Plan
The Water Quality Improvement Plan for Vasse-Wonnerup and Geographe Bay identifies management actions for reducing excess levels of nutrients in urban and rural landscapes.
Excess nutrients-particularly nitrogen and phosphorus-often result in algae blooms, the proliferation of weeds and pests (such as midges and mosquitoes) and other ecological changes.
The project will implement management actions for:
- stock control in riparian areas
- effluent from dairies and feedlots
- fertiliser use in urban areas.
It will also strategically retrofit water-sensitive urban design elements, and monitor and model nutrient dynamics throughout the catchment.
|Investment:||$ 1 253 000|
|In-kind contribution:||$ 537 855|
|Other contribution:||$ 257 255|
|Delivery organisation:||Department of Water|
|Project duration:||January 2010 - December 2011|
|Location:||Geographe catchment in south-west WA|
Major project achievements
- Dairy effluent management improved through accreditation of contractors and consultants in designing and installing effluent systems.
- 'Code of Practice' developed for dairy shed effluent.
- Ten priority dairy effluent systems upgraded, reducing impacts on receiving waterways.
- Nutrients from the Busselton light industrial area reduced through improved water management of high-risk businesses and retrofitting of a major urban stormwater drain and detention basin.
- Nutrients entering waterways reduced through improved riparian management-fencing and revegetation along priority waterways.
- Enhanced knowledge of Vasse-Wonnerup and Geographe Bay wetlands.
- Heightened community awareness of poor fertiliser practices through the 'Bay OK' program.
- Increased participation in WQIP by local and state government agencies, industry bodies and individuals.
- Adaptive management of Vasse-Wonnerup wetlands improved through enhanced knowledge of nutrient and aquatic plant dynamics.
- Decreasing trend in nitrogen levels identified in the Sabina River catchment. This emerging trend indicates that remediation works are improving water quality entering the Vasse-Wonnerup wetlands.
GeoCatch; Shire of Busselton; South West Catchments Council; Murdoch University; dairy farmers; Western Dairy; Dairy Australia; Department of Environment and Conservation; local businesses; farmers; large fertiliser users