Completed projects

C2: Effectiveness of rural land interventions to improve stream flows and water quality

Melbourne Water’s makes major investments in mitigating the impacts of rural runoff on waterways and the effectiveness of this investment is constrained by limited information on (i) the sources and types of pollutants and (ii) the effectiveness of runoff control measures. This project assessed performance of revegetated swales, sediment basins, and vegetated gullies at dairy farms, including revegetated gullies in the Tarago catchment for treating runoff prior to entering waterways and the drinking water supply. The focus now is on developing or refining tools and products to support management decision-making and stakeholder communications through the Rural Land Management Program.
Completed 2020

C3: Effective, efficient indicators for monitoring Water Sensitive Urban Design asset performance

Melbourne Water and their stakeholders invest substantially in stormwater management programs that involve a range of Water Sensitive Urban Design (WSUD) features, however, there is a lack of knowledge about the performance and optimal maintenance of these assets. This project sought to identify cost effective indicators for WSUD performance monitoring, such as low cost sensors and real-time monitoring and control that could be incorporated into new ‘Expert Systems’. The outcomes of this research have now been integrated into other MWRPP research projects including C1 and B3, that will further develop and trial these technologies.
Completed 2020

D3: Evaluating direct seeding as a cost-effective revegetation technique

This research project has shown that riparian revegetation using direct seeding has the potential to be more cost-effective than traditional approaches using tube stock planting, particularly sites that are large, flat, easily accessible, and the management goal is mostly about establishing basic vegetation structure. For direct seeding to be successful in riparian areas, there needs to be adequate site preparation, post-sowing weed control, water and herbivore control (also necessary for tube stock plantings). The MWRPP is currently finalising tools and resources to guide the implementation of direct seeding at a range of sites across Melbourne Water in 2020-21.
Completed 2020

C4: Understanding the economics of urban water management for improved waterway health to inform effective investment frameworks and to drive regulatory or incentive changes.

This project will place the actions and changes required for waterway protection and restoration into an institutional analysis of the water industry. The approach will permit a formal reconciliation of the beneficiaries and cost-bearers of public, private and toll goods provided by the water industry and common-pool resources, with the primary outcome being a strong case for industry-wide review of integrated water management governance.
Completed 2019

2.1: Optimizing flow regimes in the context of a superabundance of water.

This project examined whether ecologically important components of the flow regime can be maintained at levels likely to sustain healthy ecosystems, even when total runoff volume remains significantly higher than natural. The project provided important guidance to Melbourne Water in existing and new urban areas.
Completed 2014

4.7: Assessment of Phragmites expansion and control measures at the Seaford Wetlands.

The Seaford Wetlands vegetation monitoring program was established in 2013 to accompany capital works aimed at naturalising water regimes and assisting in the control of Phragmites australis (Common Reed). The program monitored the potential expansion of Phragmites and assessed the effectiveness of slashing as a control measure.
Completed 2017