Water Treatment Australia (WTA) specialises in the provision, design and construction of water, wastewater & sewage treatment plants. Water Treatment Australia uniquely sets itself apart from its competitors in three main areas:

  1. Highly qualified long-standing professional staff of engineers, project managers and site personnel with extensive experience in the water, wastewater and sewage disciplines
  2. Owners of an impressive archive library dating back to 1956 for the design, construction, installation, upgrade and commissioning of over 500 water treatment plants in Australia and overseas
  3. Frequently ranked as the most cost-competitive while supplying and constructing to quality assured standards for new and returning customers

Quality Assurance & Accreditation

WTA are a Quality Endorsed Company to AS/NZS ISO 9001 Certificate No. QEC 2544. We have a quality manager and three internal auditors. We would be pleased to provide further details together with sample Quality Plan.

WTA meets the stringent requirement of the Australian Government Building and Construction Work Health and Safety Accreditation obligations.

WTA regards safety as a non-negotiable aspect of project delivery and incorporates an OHS system as an integral part of the project delivery process from planning through to project implementation.

Quality Management System

Certificate No.: QEC 2544

Issued: 11 April 2019
Expires: 19 April 2022

Australian Government Building and Construction WHS Accreditation Scheme

Certificate No.: 0268

Start: 13 November 2015
Expires: 12 November 2024

Health & Safety Management

Certificate No.: HSM 41437

Issued: 11 April 2019
Expires: 19 April 2022

Environmental Management System

Certificate No.: EMS 40380

Issued: 24 November 2020
Expires: 14 December 2023

Occupational Health and Safety

Certificate No.: OHS 20809

Issued: 11 April 2019
Expires: 19 April 2022

WTA have a third party accredited environmental management plan to ISO 14001:2004 Certificate No. EMS 40380. Implement, maintain and continually improve the Environmental management system in accordance with the requirements of Standard AS/NZS ISO 14001:2015

The adoption of the Environmental management systems aims to fulfil the following objectives:

  • Consistently provide high quality water treatment plants incorporating the latest in design, efficiency and function at a competitive price and with minimum harmful impact on the environment.
  • Ensure possible environmental impacts are identified at the tender and early design stage of each contract with measures being planned to minimise the risk of pollution and waste.
  • Identify potential risks during the construction phase of contracts and take the necessary measures to minimise the risk.
  • Have environmental management plans in place to handle any environmental issues which could arise during construction, installation, commissioning and operation of the plant.

Awards & Acknowledgements

Water Treatment Australia’s outstanding service, design and workmanship has received industry acknowledgements and awards including:



Certificate of Appreciation

Ewan Maddock Advanced WTP


Engineering Excellence Award

Engineers Australia for Landers Shute Advanced WTP


Certificate of Appreciation

Grampians Regional Water Authority – Edenhope WTP


Certificate of Appreciation

City of Horsham – Horsham WTP


ABN 57 004 804 040