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Our experienced Executive Management Team brings a wealth of experience, diversity and innovation to GWMWater.

The Executive Team ensures the smooth day-to-day operation of GWMWater, as well as implementing strategic direction as determined by the board. They're responsible for managing key business areas such as stakeholder management, finances, service delivery and infrastructure. Leading our dedicated and expert staff, the Executive Team ensures that GWMWater maintains its reputation as an outstanding water corporation.



Mark Williams web2

Mark Williams

Managing Director

Mark has been with GWMWater and the former Grampians Water since 1996. In this time Mark has been responsible for overseeing the commercial implementation of water reforms in the region that include the delivery of water quality upgrades, investments that have improved water security and the introduction of independent service and price regulation by the Essential Services Commission.

Mark brings a wealth of experience to the role beyond his water industry experience which includes roles in the power industry, health and public service where he started his career in 1985.

Mark served on the Wimmera Health Care Group Board from 2001 to 2016 and also held the office of President in the period 2011-2016.

During 2017 Mark joined the Wimmera Southern Mallee Regional Partnership established by the Victorian Government in 2016 to recognise that local communities are in the best position to understand the challenges and opportunities faced by their region.



Andrew Rose web2

Andrew Rose

Executive Manager Stakeholders and Governance

Secretary to the Board

Andrew has more than 40 years experience in the water industry, having spent 25 years with Melbourne Water prior to moving to the Wimmera in 2000. Since then he has been employed in the region’s water industry with a focus on customer service, community consultation, human resource management, media and general administration.



Sally Marshall web2

Sally Marshall, CPA

Executive Manager Business Planning and Performance

Sally commenced work with GWMWater in 2006 and has a strong background in finance and technology fields.

Sally is our chief finance officer who is responsible for providing strategic leadership and direction in organisational performance planning, reporting and all financial management activities.



 Victoria Hart web2

Vicky Hart

Executive Manager Service Delivery

Vicky commenced with GWMWater in January 2017 and has an extensive record in maintenance, operation and contract management within the water industry both from within Australia and the United Kingdom. Vicky has a Bachelor of Science, Environmental Science Hons.




Brendan Nitschke

Acting Executive Manager Infrastructure

Brendan commenced work with GWMWater in 2002 and has extensive experience in Information and Communication Technology, project and contract management. Brendan has a Bachelor of Computing and a Master of Business Administration.




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