Port Lincoln City Council community infrastructure manager Nigel Melzner said the works scheduled over the next few months would allow 55,700 square metres of turf on Centenary Oval, the foreshore and North Point Reserve lawns to be irrigated with recycled water rather than mains water.

"This will mean significant savings to Eyre Peninsula's water supplies," he said.

In the council's 10-year strategic plan for 2007 to 2017, a key objective in the sustainable management of water resources was to extend the recycled water network into the central business district by 2012.

"With the initiation of this current work we are well on target to achieving this goal," Mr Melzner said.

"Council's main focus at the moment is to get all its CBD reserves and ovals hooked up to the system."

Extending the pipe work to Centenary Oval via Park Terrace will open up the opportunity for schools to access the recycled water to irrigate their ovals.

The council has had preliminary talks with schools, as well as the bowling and croquet clubs, with a view to on-selling the water to them in the future.

As part of the current stage of work the pipeline will provide St Joseph's, the primary school and the high school with future connection points.

The next step may have to be planning an upgrade for the wastewater treatment plant at Billy Light's Point to cater for the extra demand.

The council and SA Water had worked hard to achieve top water quality results, Mr Melzner said.

The treatment plant and the reticulation network is council-owned infrastructure, with SA Water personnel contracted to manage and monitor water quality at the plant.

"SA Water's assistance with this project has been invaluable, and between their skilled staff and the upgrades to the plant that council have conducted over recent years we have been achieving great results in water quality."