Home > Site Reports > Landscaped Areas & Parklands > Port Augusta City Council

Port Augusta City Council

Landscaped Areas & Parklands Site Report

Efficient water use and reducing the strain on the River Murray have been high on Port Augusta City Council’s agenda and, with the official opening of its waste water reuse plant on Monday, October 24, the Council is proving the two can be achieved.

After five years of planning, the Council is now watering a number of its parks and gardens using treated waste water through its own plant and infrastructure.

The result is far greener parks and gardens using nearly half as much water, with the added advantage of substantially reducing the amount of effluent water pumped into Spencer Gulf.

The innovative scheme involves the treatment of waste water at a plant located at Central Oval, the monitoring of water levels and delivery of water through a computerised Central Control Rain Bird watering system, and the subsurface irrigation system, designed and installed by Greene Eden Watering Systems.

The raw waste is sewer-mined from the SA Water sewerage pump station on Seaview Road and is pulverized and then pumped to the Central Oval treatment plant. This makes it the only water re-use scheme where sewer mining from the sewer mains is occurring in South Australia, giving it the benefit of establishing the infrastructure close to where the watering occurs.

It is estimated the new Rain Bird computerised watering system will save about 20% of water used on Port Augusta’s parks and gardens, and the sub-surface drip irrigation system will provide another 30% water saving.

As well as saving around 50% of water, the new irrigation system is also expected to reduce maintenance costs to a minimum, with on-going sprinkler vandalism no longer an issue because plants are watered at root level via the sub-surface drip irrigation pipe. The system installed is a Rain Bird Site Control. This is linked to a Rain Bird weather station that measures wind speed, rainfall and temperature.

The system factors in weather conditions and moisture levels detected via soil moisture sensors, and responds accordingly, delivering the amount of water required via the sub surface irrigation system.

In total, 48,621m2 of turf is being watered as part of the scheme, as well as a further 7,161m2 of landscaped areas.