Awarded 25 Nov 2025
This is an awarded contract.
View Live TendersDesign and Construction of Gas Chlorination Facility at Darwin River Dam
About
Power and Water Corporation awarded a contract to Alto Valves & Fittings Pty Ltd for the design and construction of a new gas chlorine dosing facility at Darwin River Dam, replacing an aging facility over 30 years old to meet current and future demand.
This contract reflects ongoing investment in critical water infrastructure to support regional growth and ensure compliance with health standards.
Similar Open Tenders
Design and Construction of Murrayville Chlorinator Upgrade – Grampians Wimmera Mallee Water
Closes: 14 Oct 2026
Water & Sanitation
Design and Construction of Disinfection Upgrades – Shepparton Water Treatment Plant (Goulburn Valley Water)
Closes: 10 Nov 2026
Water & Sanitation
Design and Construct Contract for Kwinana Gas Power Generation 2 (220 MW open-cycle) — Clough for AGL Energy
Closes: 09 Jun 2027
Energy & Environment
Design & Construct Gundagai Water Treatment Plant — CCP Instrumentation, Integration and Optional Chemical Dosing Upgrade
Closes: 29 Oct 2026
Water & Sanitation
Darwin Ship Lift Project – Three Subcontracts Including Blast and Paint Facility Construction
Closes: 31 Dec 2027
Construction
Decommissioning of Nathalia Water Treatment Plant – Goulburn Valley Water
Closes: 29 Sep 2026
Water & Sanitation
Design and Construction Contractor for Southern Water Treatment Plant — Toowoomba Regional Council
Closes: 29 Sep 2026
Water & Sanitation
Design and Construction of Mapoon New Treated Water Reservoir – DLGWV
Closes: 07 Oct 2026
Water & Sanitation
Water Infrastructure Upgrades and Regulator Construction – Riverland (Berri Basin, Overland Corner, Gerard)
Closes: 12 Oct 2026
Water & Sanitation
Disinfection Safety Improvements at Toora Water Treatment Plant – South Gippsland Water
Closes: 06 Oct 2026
Water & Sanitation
Busselton Water Plant 8 Supply Improvement – Design and Construct
Closes: 04 Dec 2026
Water & Sanitation
Construction of Sludge Dewatering Facility at Burgowan Water Treatment Plant — Fraser Coast
Closes: 15 Oct 2026
Water & Sanitation
Other Similar Contracts
Value: $99,946
Supply and Delivery of Chlorination Unit at Manton Dam to Power and Water Corporation
Supplier: Alto Valves & Fittings
Water & Sanitation
Value: $602,140.83
Construction of Building Pad and Access Road for Darwin River Dam Chlorination Facility
Supplier: Colemans Contracting & Earthmoving Pty Ltd
Infrastructure
Value: $3,355,285.04
Design and Construction of Groundwater Chlorination Disinfection System for Power and Water Corporation
Supplier: Alto Valves & Fittings Pty Ltd
Water & Sanitation
Value: $4,384,244.72
Design and Construction of a New Chlorination Building in Batchelor, Darwin Region
Supplier: Mousellis and Sons Pty Ltd
Construction
Value: $70,752
Suction Valve Replacement at Darwin River Dam by Power and Water Corporation
Supplier: ALTO VALVES & FITTINGS PTY LTD
Water & Sanitation
Value: $21,610
Supply, Delivery and Installation of Chlorine Drum Upgrades at Darwin-Ludmilla Waste Water Treatment Plant
Supplier: WestWater NT
Water & Sanitation
Value: $27,761,811.29
Design and Construction of New Pump Station at Darwin River Dam by Power and Water Corporation
Supplier: McMahon Services Australia (NT) Pty Ltd
Water & Sanitation
Value: $1,888,834.97
Design and Construction of Flowmeters and Injection Points for Darwin River Dam
Supplier: Exact Contracting Pty Ltd
Water & Sanitation
Value: $122,474
Supply of Valves and Fittings for Darwin Water Infrastructure
Supplier: Alto Valves and Fittings
Water & Sanitation
Value: $2,065,783.94
Construction of Pump Station and Chlorine Buildings at Jenkins Road, Darwin
Supplier: MOUSELLIS AND SONS PTY LTD
Water & Sanitation
Value: $132,533.64
Supply, Delivery, and Installation of Chlorination System at Howard Springs Village
Supplier: JN Mousellis Civil Contractors Pty Ltd as The Trustee for JN Mousellis Family Trust
Water & Sanitation
Value: $266,362.1
Supply, Delivery and Installation of Improved Access Road and New Gantry Crane for Gas Chlorine Drum Lifting at Maningrida and Gunbalanya
Supplier: Fred NT Pty Ltd
Infrastructure
Suppliers similar to Alto Valves & Fittings Pty Ltd
Unknown
2638 contracts
Construction
GHD pty ltd
860 contracts
Consultancy & Legal
AECOM
380 contracts
Consultancy & Legal
Aurecon
296 contracts
Consultancy & Legal
JACOBS AUSTRALIA PTY LTD
226 contracts
Consultancy & Legal
Downer EDI
170 contracts
Infrastructure
WSP Australia
140 contracts
Consultancy & Legal
Stantec
132 contracts
Consultancy & Legal
Live Feed
Tenders and contracts,
consolidated and enriched.
We pull tenders and awarded contracts from government portals around the clock. Each one is categorised, enriched, and searchable shortly after it's published.
Smart Recommendations
Matched to your business,
automatically.
Our AI reads every new tender and contract, and recommends the ones relevant to your business in real time. No searching required.
Your Dashboard
Configure once,
run on autopilot.
Set up your alerts, watchlists, and preferences from your dashboard. GovMarket works in the background so you can focus on winning work.
GovMarket AI
Search tenders and contracts
in plain English.
Find tenders, look up suppliers, check who won contracts, and explore agency spend. Just type what you need.
Get Started
Win more government work.
Join suppliers across Australia using GovMarket to find and win contracts.
7 days free, then $49.99/AUD per month







