Water Journal : Water Journal September 2012-1
sustainable water management technical features 86 SEPTEMBER 2012 water • The opportunity to conduct community tree-planting days at the reserve, which provides an avenue for involving the local community and stakeholders, and helps demonstrate the sincerity of the Alliance's intentions to meet its environmental responsibilities. As a result of the success of this strategy, Logan City Council has indicated that it would be willing to support future mitigation works within the reserve in line with vegetation clearance requirements on future capital works projects. Springwood Low Level Reservoir project The Springwood Low Level Reservoir project is another example of the Alliance's commitment to delivering sustainable project outcomes, and demonstrates the value added by the environment team at different project stages. This project involved the duplication of the existing single inlet- outlet pipe at the Springwood Low Level Reservoir (which is located adjacent to the Springwood Conservation Park) and construction of erosion and sediment controls to manage the gully erosion that had developed over time. For the erosion and sediment control section of the project, the original design specified filling eroded areas with rock and covering the top section with reno mattress. After construction began, it was determined that this was not the most sustainable solution to the issue. After discussion with the appointed subcontractor, design experts and landscaping experts, a decision was made to use coir logs, jute matting, partial rock fill and topsoil as a top layer, and replanting of the area to stabilise the slope. This solution is contiguous with the Springwood Conservation Park and maintained the continuity in vegetation for the area's fauna. In addition, it saved approximately $15,000 compared with the original solution. Overall sustainable result Logan Water Alliance's sustainable decision-making process and commitment to maintaining and enhancing the health of the local environment has generated significant results to date. By focusing on avoiding and minimising vegetation clearing where practical, the Alliance has delivered approximately $1m in mitigation cost savings and saved more than 3,000 trees in approved construction corridors through innovations in project delivery. Conclusion This paper demonstrates how the Alliance's inclusive decision-making process promotes and achieves sustainability. Involving environmental specialists in all stages of the alliance delivery model ensures that environmental impacts are kept to a minimum. Taking a strategic approach to managing mitigation requirements for clearing native plants creates an opportunity for limiting impacts, provides substantial efficiencies and builds trust among all stakeholders. This paper was originally presented at Enviro 12 at Adelaide in July. Acknowledgement We would like to thank Allconnex Water and Logan City Council for allowing the presentation of this paper. We would also like to express our appreciation to the Logan Water Alliance approvals and environment team (including former members), as well as members of other teams, including the stakeholder and community team, for their contributions. The Authors Pieter van der Linde (email: email@example.com) is a Principal Planner with 23 years' experience in the public and private sectors. Currently manager of Parsons Brinckerhoff's Gold Coast, Queensland, office, his responsibilities include client relationship management and business development. Pieter is also the part-time approvals/ environment manager on the Logan Water Alliance and a guest university lecturer. Pratik Solanki (email: psolanki@ pb.com.au) is an Environmental Engineer with more than five years' experience in environmental management of infrastructure projects up to $100m. Pratik has a Bachelor of Civil Engineering, a Master of Environmental Engineering and a Diploma in Project Management. He is currently employed as Environmental Team Leader on the Logan Water Alliance Project by Parsons Brinckerhoff's Brisbane, Queensland, office. Figure 8. Springwood Low Level Reservoir erosion and sediment control. Figure 7. Greenwood Lakes Reserve rehabilitation planting.
Water Journal November 2012-1
Water Journal August 2012