This council program uses developer contributions to deliver water quality improvement projects. Projects delivered by council include stabilising creeks, naturalising channels, re-engaging floodplains and constructing wetlands and bioretention basins. To ensure the best outcomes, these projects must include water quality improvements as well as other environmental and social benefits.
The Offsite Stormwater Quality Improvement Program is a voluntary program for developers. A developer interested in participating can apply to council to have its water quality treatment obligations offset. If approved, the developer makes the required financial contribution to council and those funds are used by council to deliver a water quality improvement project at another location (not within the development area). Not all development is eligible to participate. For example, council does not allow offsetting where development is within sensitive receiving areas or for greenfield development.
The Offsite Stormwater Quality Improvement Program creates both on-ground improvements and long-term sustainability of constructed stormwater assets.
Council has completed a diverse range of projects through the Offsite Stormwater Quality Improvement Program (previously called the Stormwater Quality Offset Program). There are clear overall water quality improvements delivered by council’s offset projects.
As of 2023, council had used 44 per cent of the offset funds received but had achieved between 61 per cent and 131 per cent of its water quality improvement obligations (see graph below).
Those offset projects completed so far prevent more than 380 tonnes of sediment and one tonne of nitrogen from entering Ipswich’s waterways each year.
Graph: Progress toward meeting ICC water quality offset obligations
Council seeks projects for the offsets program that provide multiple outcomes.
Council is committed to evaluating and reporting on the Offsite Stormwater Quality Improvement Program. This reporting ensures transparency and conforms to State Government guidance. Program evaluation and reporting also assists with continued improvement. This allows council to adapt the program to ensure full benefits can continue to be achieved.
Council has worked with landholders to restore Franklin Vale Creek, on Ipswich’s western boundary.
The instability and bank erosion of this creek impacts water quality entering the Bremer River, the biodiversity values of this wildlife corridor and the productivity of graziers.
Actions include revegetation, offline watering points and stock exclusion fencing.
Find more information on the Franklin Vale Creek webpage.
Council has transformed a straight concrete channel in Raceview to a living, naturalised creek.
As well as stormwater pollutant reduction, improved habitat and visual amenity, Small Creek offers path and bikeway connections for the community.
Three stages of this award-winning project are completed, between Warwick Road and Poplar Street Park.
For more information, see the Small Creek webpage.
This is an innovative way of diverting stormwater from the kerb to nourish street trees.
The trees capture nutrients and sediments that would otherwise wash into our rivers and creeks.
These sustainable, self-watering street trees are designed to fit neatly into the streetscape and landscape, adding to neighbourhood appeal.
For more information, see the Water Smart Street Trees webpage.
These constructed wetlands in Eastern Heights are an excellent example of multiple benefits from one project.
Stormwater flows into a pond which captures most of the dirt and particles.
The filtered water is harvested for use on the sport fields.
The lush native vegetation provides habitat for species such as frogs and birds, as well as visual amenity.
It has a history of being one of Ipswich’s most damaged creeks, with dispersive soils causing severe bank erosion, scouring and sediment.
Since 2019 Council has undertaken works to stabilise sections of Ironpot Creek.
Thousands of native plants and tonnes of rock have been installed.
Early stages have already proved successful at protecting the creek during flood events.