AUSTRALIA · TENDER

Any Opportunities

🏗️ Project Overview: Castlemaine Water Reclamation Plant Upgrade Coliban Water is seeking expressions of interest (EOI) for the Castlemaine Water Reclamation Plant (WRP) Upgrade, a flagship initiative within the 'Big Water Build Program'. This project involves the delivery of a new continuous flow treatment plant, including inlet works, oxidation ditch bior…

Key facts

Buyer
Coliban Water
Location
VIC Australia
Status
Closed
Opened
29 Apr 2026
Closed
11 Jun 2026
Decision
Not provided
Categories
Full Scope

Summary and scope

Project: Castlemaine Water Reclamation Plant Upgrade Project owner: Coliban Water Location: VIC Australia Work package status: Open Scope: Full Scope Work package description: Express interest for any opportunities that may arise for this project. Project overview: Project OverviewThe Castlemaine Water Reclamation Plant (WRP) upgrade is a top-priority project for Coliban Water, it forms part of Coliban Water's Big Water Build Program, an investment initiative to address critical infrastructure needs.The solution is a new continuous flow treatment plant (inlet works, oxidation ditch bioreactors, membrane bioreactor, UV disinfection, solids handling), built on the existing site and integrated with existing outfalls.The project will be delivered under a Design-Build-Operate-Maintain (DBOM) model with three phases:Operate (Existing Facility)-operator continues to meet current licence while construction occurs;Design & Construction (New Facility)-contractor designs, builds, commissions and proves performance;Operate (New Facility)-operator runs the new facility through the O&M term and handback.Project OwnerColiban Region Water Corporation (Coliban Water) is the Principal and asset owner. Coliban Water provide water and wastewater services to 49 towns across 16,500sqkm in North-Central Victoria. Coliban Water services rural and urban areas from Cohuna and Echuca in the north to Kyneton and Trentham in the south and also manages, maintains and operates 35 reservoirs and water storage basins.Scope of Works (Design & Construct)Raw wastewater interface: Connection of incoming raw wastewater pipelines and conveyance to the New Facility.Preliminary treatment: Inlet works with screening and grit removal to remove debris and prevent damage to downstream processes.Secondary treatment: Bioreactor and secondary solids separation for enhanced biological nutrient removalFiltration: Filtration to achieve the Victorian Chief Veterinary Officer helminth removal standards.Disinfection: A UV disinfection system designed to inactivate pathogens and ensure treated effluent meets discharge quality and recycled water standards.Biosolids processing: Waste Activated Sludge (WAS) pre-thickening, stabilisation and sludge dewatering to manage and stabilise biosolids for disposal or beneficial reuse.Chemical storage and dosing: As required to meet the performance objectives for the facilityTreated effluent discharge: Conveyance of treated effluent in compliance with regulatory and environmental requirements.Odour control system: Collection and treatment system for foul air to meet the performance objectives for the facilityFlow diversion: Integration of the existing emergency storage lagoon to divert out-of-spec flows in line with the performance objectives for the facilityElectrical, instrumentation and controls: infrastructure required to safely and reliably deliver power, instrumentation and control to the facilitySite civil works: Such as vehicle and equipment access, drainage and buildings, intermediary pump stations, clearing of redundant infrastructure etc.Balance of plant: Critical infrastructure and systems that support the core treatment processesProject timeframesContract Award, late 2026 - mid 2027Design & Construction:2027-2030/31Operation & Maintenance:2030/31 O&M term commencesHOW TO REGISTER AN EXPRESSION OF INTEREST (EOI)To submit an EOI, companies must have an ICN Gateway company profile. Information on how to register your company on ICN Gateway is detailed below.This is an initial, generic EOI submission only. All companies who submit an EOI will be included in information presented to companies who are short listed to bid for this Project.The services, programmes and initiatives provided by ICN Victoria are aimed at complementing a company's existing Sales, Marketing and Business Development strategy and any EOI submitted should not be considered as an alternative to these activities.ICN GATEWAY COMPANY REGISTRATIONClick here to register your company profile on ICN Gateway.Support and assistance are available through the web links listed below.An ICN Gateway company profile that accurately and effectively summarises your company is critical to using the services of the ICN Group - please ensure that your company invests the time and energy required to represent your company in the most effective manner possible.Companies should ensure that the email notification functionality within their ICN Gateway company profile is activated to include an appropriate level of coverage to Information & Updates, Major Projects and Regional Opportunities.(1) ICN Gateway Setup Wizard(2) ICN Gateway User Guide

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