Picton Wastewater Scheme

Keeping recycled water in the community

We're looking at how we manage the recycled water at the Picton Water Resource Recovery Facility, which treats wastewater from up to 5,000 homes and businesses in the Picton area. The recycled water irrigates our Picton Farm. The farm is at capacity, and we’re looking at alternative ways to manage excess recycled water. We want to increase reuse and keep precious water in the community.


Picton Water Resource Recovery Facility treats wastewater that’s been used in about 5,000 homes and businesses in Picton, Tahmoor, Thirlmere, Bargo and Buxton. The Picton Wastewater Scheme includes:

  • pipelines and pumping stations
  • Picton Water Resource Recovery Facility, which currently receives an average of 3 million litres of dry weather wastewater flows a day.

Once wastewater is treated, it's used to irrigate 119 hectares of crops on Picton Farm, which is owned by Sydney Water. In limited circumstances, excess recycled water can be released into Stonequarry Creek. The frequency and amount of treated water that can be released must comply with conditions set by the NSW Environment Protection Authority (EPA)

Recycled water is used to irrigate fodder crops at Picton Farm.

We've been improving the Picton Wastewater Scheme for several years. This includes:

  • increasing the volume of wastewater that can be treated at the facility
  • building pilot wetland cells to assess how well they remove nutrients from the treated wastewater
  • reducing nitrogen levels in the treated wastewater to minimise impacts on the environment and waterways
  • investigating wet weather inflows into our wastewater system
  • installing new equipment at the facility to further minimise impacts on the environment.

Expanding the scheme

We're working on a plan to expand the Picton Wastewater Scheme. This includes consulting with the Environmental Protection Agency (EPA) and Wollondilly Council to identify options that:

  • enable development
  • are cost-effective
  • maintain local waterway health.

Depending on the plan the EPA agrees to, the planning and delivery may take up to up to 4 years. We'll provide more information on this website as it becomes available.

In the meantime, developers wishing to rezone land ahead of this timeframe (or with projects outside of the servicing area) can discuss on-site wastewater management options with Wollondilly Council.

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