Water, Our Focus

Goulburn Reuse Scheme Wastewater Treatment Plant Modification

Water, Our Focus

Project Background

Goulburn Mulwaree Council is upgrading the Wastewater Treatment Plant (WWTP) to support increased irrigation demand for new parks. This initiative reduces dependence on potable water and decreases treated wastewater discharge into the Wollondilly River.

The upgrade expands the WWTP’s capacity with advanced treatment technologies, constructs additional storage facilities, and upgrades pipelines and distribution systems. State-of-the-art control systems will ensure real-time monitoring and efficient operation, aligning with the Council’s SCADA system.

Benefits include significant water conservation, reduced environmental impact, and long-term cost savings. The project will follow local and national regulations, ensuring safety, reliability, and efficiency. A detailed plan will outline key milestones, with the Project Manager, Construction and Technical Teams, and Quality Assurance overseeing the process.

This upgrade is essential for the Council’s Reuse Scheme, enhancing irrigation capabilities and contributing to sustainable water management.

Goulburn

Project Details

Client

Goulburn Mulwaree Council

Asset Owner

Goulburn Mulwaree Council

Project Dates

December 2022 – May 2023

Location

Goulburn NSW

Scope Of Works

Killard’s scope of works encompasses the design and construction of two storage tanks and a pumping station alongside the required pipework, mechanical and electrical installation, and automation. The project includes:

    • Locating Existing Services: Identifying and mapping existing underground services to avoid disruptions.
    • Erosion and Sedimentation Control: Implementing measures to control erosion and sedimentation, including managing stockpile areas.
    • Site Preparation: Clearing and grubbing, setting out, and preparing the site.
    • Geotechnical Investigations: Performing soil investigations and compaction to ensure site stability.
    • Earthworks: Conducting bulk and detailed earthworks, including excavation and backfilling of the reservoir pad with engineering fill.
    • Concrete Reservoirs constructions: 650KL x2 Pumping Station Installation: Setting up a multistage variable speed pumping station, along with the necessary electrical and mechanical works.
    • Pipework Installation: Excavating and trenching for the installation of a DN450 DCL pipe feed gravity main to the tanks, including plant pipework and associated

valves and fittings.

    • Testing and Commissioning: Conducting thorough testing and commissioning of all installed systems.
    • Site Restoration: Backfilling, surface grading, and restoring the site to its original condition.

Outcome / Key Features

Water Conservation: By using treated wastewater for irrigation, the project significantly reduces the strain on potable water resources.

Environmental Impact Reduction: Decreasing the discharge of treated wastewater into the Wollondilly River helps protect and improve the river’s ecosystem.

Cost Efficiency: Utilizing recycled water can lead to long-term cost savings for the Council and the community by reducing the need for potable water supply infrastructure.

The upgrade of the Goulburn Mulwaree Council’s Wastewater Treatment Plant is a pivotal component of the Reuse Scheme, demonstrating the Council’s dedication to innovative and sustainable water management practices. This project will not only enhance the irrigation capabilities for new parks but also contribute to significant environmental and economic benefits by conserving potable water and reducing wastewater discharge.