The Northern Adelaide Irrigation Scheme (NAIS) is an opportunity to expand the use of recycled water for horticultural irrigation in the Northern Adelaide Plains. NAIS is a public/private partnership concept developed under the PIRSA led Northern Adelaide Plains Agribusiness Initiative.
SA Water released an Expression of Interest (EOI) to the market seeking innovative proposals to utilise 20 gigalitres (GL) per annum of recycled water from the Bolivar Wastewater Treatment Plant that can create the greatest economic benefit for the state.
The existing Virginia Pipeline Scheme currently delivers around 17 GL per annum of recycled water each year. Around 400 irrigators use the recycled water. The Virginia Pipeline Scheme is currently owned and operated by Trility Pty Ltd.
Of the 20 GL allocated for the NAIS project, around 12 GL is available during wetter (winter) months. For irrigation, storage is necessary. SA Water is considering two broad storage options:
A Community Committee was established to work with SA Water to develop a plan for recycled water storage in the Northern Adelaide Plains.
The draft SA Water Guidelines for Recycled Water Storage in the Northern Adelaide Plains were developed as a result of the discussions with the Committee and released to the wider public for additional feedback.
Community consultation on the draft Guidelines has now closed. SA Water has begun incorporating community feedback and will publish a final version of the Guidelines that will be made available for the public.
For the latest update on the NAIS project and additional information about recycled water in the Northern Adelaide Plains please read our December Newsletter.