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GHD is at the forefront of the water industry, delivering sustainable water solutions across the globe, covering every element of the water cycle for urban, rural and industrial water applications.

As the world’s population grows and our standards of living improve so does our need to manage the water in our environment. We need to maximise its application for human well-being and minimise impact on the environment. GHD engineers, scientists and planners can provide sustainable, cost-effective and innovative water solutions.  We assist water utilities and others who provide water services to optimise infrastructure and adapt to environmental changes in ways that balance the needs of our communities. And we enable clients to meet compliance, improve profitability and maintain their commitment to sustainability.

GHD continually expands the boundaries by engaging in research, enhancing existing systems and strategies, evaluating new procedures and transferring technology from other industries into the water industry. We work with our clients through all project stages planning, investigation, design, delivery, operation and renewal.

The end result is GHD is delivering significant projects all over the world. Examples include desalination plant work in Australia, USA, Mexico, Africa and the Middle East; major water recycling projects like the Western Corridor Recycled Water project in Australia; and work on a wastewater treatment plant so that it meets high nutrient removal standards to protect the quality of water in Chesapeake Bay in the USA. But significance is relative. Every project is important to our clients and we at GHD pride ourselves on the efficient and effective delivery of every commission large or small.

We're proud of our formidable knowledge-base, and we've won many industry awards for innovation and outstanding project delivery. Our people can provide sustainable, cost-effective and innovative water solutions for your next project. We are committed to sustainable development, safety and innovation. We care for the wellbeing of our people, assist communities in need and conduct business in an ethical and environmentally responsible manner.

For further information, contact:

Chris Hertle
T: +61 7 3316 3710
E: Chris Hertle

Ammonia Phosphorus Removal, Metropolitan Syracuse Treatment Plant Onondaga County (NY, USA)


In partnership with two other firms GHD was retained by Onondaga County, New York to provide engineering services in connection with the design and construction of improvements to its 84 million-gallon-per day Metropolitan (METRO) wastewater treatment plant, with the objective of upgrading the level of wastewater treatment provided for ammonia and phosphorus removal.

The project established that the facility, which provided conventional secondary treatment (with seasonal nitrification and phosphorus removal to less than 1.0 mg/L), needed to be upgraded to provide year-round ammonia removal (1.0 mg/L as N for June 1st to October 31st, and 2.0 mg/L for November 1st to May 31st), and phosphorus removal to 0.12 mg/L TP for a 12-month rolling average.

Read More . . .

Carlsbad Desalination Plant (CA, USA)


GHD in collaboration with Butier Engineering were selected by Poseidon Resources to provide Owner's Engineering services for the development, construction and commissioning of the 50 MGD Carlsbad Seawater Desalination project. 

As Owner’s Engineer, GHD and Butier have and continue to provide general oversight and independent assessment of the performance of the Engineering Procurement Construction (EPC) Contractor relative to the delivery of the Carlsbad project.

Read More . . .

Cox Creek Wastewater Treatment Upgrade (Md, USA)


GHD was retained by Anne Arundel County for the Enhanced Nutrient Removal (ENR) Upgrade of the Cox Creek Water Reclamation Facility (WRF). The 15.0 mgd (56.7 ML/d) Cox Creek WRF is the largest of the County’s seven (7) major wastewater treatment facilities and is also the County’s largest single contributor of nitrogen and phosphorus to the Chesapeake Bay. 

During the facilities planning phase, a comprehensive examination was made of all plant unit processes and hydraulics.  As part of this project, a decision was made to expand the peak day hydraulic capacity of the facility from 30 to 45 mgd (113 to 170 ML/d) to accommodate observed I/I derived peak flows. ENR alternatives were evaluated in a two-step approach with the first step shortlisting to three alternatives and the second step selecting the final recommendation based on conceptual designs and lifecycle cost analysis. A Membrane Bioreactor (MBR) process was selected to replace the existing MLE process. MBRs proved to be the right choice for the Cox Creek WRF due to very tight site constraints, inadequate existing reactor volume to fully nitrify year-round, inadequate existing secondary clarification facilities, limited hydraulic head available for process modifications, and the County’s desire to produce as high of quality of effluent as possible with the maximum degree of reliability.

Read More . . .

Securing Canberra’s water supply (ACT, Australia)


GHD’s work with the ACT Electricity and Water Corp (ACTEW) on the Cotter Dam is helping to secure the territory’s water supply and raising the bar for sustainable construction. The AUD363 million project involves building a new 80 metre high wall to increase the main dam’s capacity from 4 gigalitres to 78 gigalitres, and building two saddle dams with walls 15-20 m high.

Working in an alliance with ACTEW and construction companies Abigroup and John Holland, GHD has been responsible for engineering design, stakeholder liaison, environmental approvals and safety and quality control during construction. GHD’s analysis identified the best location for the dam wall, and a cost-effective construction method using roller compacted concrete (RCC).

Read More . . .

Washington Suburban Asset Management (Md, USA)


The Washington Suburban Sanitary Commission (WSSC) appointed GHD to lead the provision of asset management services in support of master planning and enterprise resource planning initiatives.

WSSC is the eighth largest water and wastewater utility in the USA, owning USD$12 billion of infrastructure assets. While instituting a range of short-term measures to combat the increasing incidence of water main breaks and leaks, WSSC is also taking a long-range strategic approach to address the growing challenge of ageing infrastructure.

Read More . . .

Western Corridor Recycled Water Project (Qld, Australia)

The AUD$2.5 billion Western Corridor Recycled Water Project is Australia’s largest water recycling scheme and the third-largest advanced water treatment project in the world.

It uses secondary wastewater from Brisbane and Ipswich, to produce 232Ml of purified recycled water a day. The project is the Queensland State Government’s response to unprecedented demand on its water supply due to population growth, climate change and the worst drought in recorded history.

Read More . . .

Murray River wetland rehabilitation (Vic, Australia)


Known as the Wetland Rehabilitation Project – Reinstating Wetting and Drying Regimes, this is one of the first projects of its type in Australia. The Lower Murray-Darling Catchment Management Authority engaged GHD to investigate, design and implement rehabilitation works to restore flood flows and fish passage to approximately 700ha of wetlands.

The team investigated wetland ecosystems to identify environmental values, then used this information to propose works and complementary land management activities aimed at achieving specific rehabilitation objectives for each wetland. The process involved flora, fauna and aquatic assessments, grazing pressure and land management assessments, indigenous cultural heritage assessments, and hydrologic-hydraulic simulation of proposed water regime options.

Read More . . .

Aquatic Sciences
Aquatic Sciences
Asset & Facilities Management
Electrical Engineering
Electrical Engineering
Industrial Water & Waste
Industrial Water & Waste
Instrumentation & Control
Instrumentation & Control
Integrated Water Management
Integrated Water Management
Materials Technology
Materials Technology
Wastewater Systems
Wastewater Systems
Wastewater Treatment
Wastewater Treament
Water Efficiency
Water Efficiency
Water Treatment and Desalination
Water Quality and Treatment
Water Transmission and Distribution
Water Systems
Waterways & Coastal
Waterways & Coastal


Chris Hertle

key person image

Chris leads our water practice in Australia. He is a chemical engineer with more than 30 years’ experience in industrial and municipal water, wastewater and solid waste management. This has covered investigations, pilot plants, design, specification, tendering, installation, commissioning and operations. Chris has been responsible for successfully implementing innovative resource recovery schemes including anaerobic treatment, oil from sludge, electrowinning of metals, Australia’s first membrane bioreactor, and the first aerobic granular system at a brewery. He has a passion for challenging designs and coming up with alternative approaches that are cost effective. At GHD, Chris has played a key role in the roll out of our innovation program and helped grow the Innovation Interchange. He has written more than 40 technical publications in the water and wastewater field, and is a highly-sought after speaker at industry conferences.

Market Leader, Water – Australia
+61 7 3316 3710
E: Chris Hertle

Patty Chier – Canberra

Patty Chier

Patty has more than 15 years’ experience spanning drinking water and recycled water management to the development of environmental management and contingency plans, to assessing human health risk and environmental risk and impacts of contaminants on river health. She is an accredited auditor with Exemplar Global and has performed HACCP audits of a number of water authorities in Victoria as well as ActewAGL’s water treatment plants. Patty has particular experience in applying a risk-based approach, consistent with AS/NZS ISO 31000:2009 standards to evaluate impacts of activities (such as urban developments or wastewater discharges) on environmental values. She is also skilled in developing water quality risk management plans for drinking water, industrial use and water reuse.

Market Leader, Water – Canberra
T: +61 2 6113 3294
E: Patty Chier

Bernard Clancy – New South Wales

Bernard Clancy

Bernard is a civil engineer with more than 25 years’ experience in the water sector, spanning strategy planning, design and commissioning of new assets and facilities. He has led or held key roles in many multidisciplinary teams delivering major infrastructure within a range of relationship-based contracts including the master plan for the water and sewer schemes of Gosford City Council to 2051. His extensive knowledge of biosolids, has seen him lead Sydney Water’s Biosolids Strategy, and manage the design of the Malabar Process and Reliability Renewal Improvement Project.

Market Leader, Water – Sydney
T: +61 2 9239 7416
E: Bernard Clancy

Mark Gebhard – Newcastle

Mark Gebhard

Mark is a chemical engineer with more than 21 years' experience in heavy industry, with the last 12 years spent in the water and waste industries. He has extensive knowledge of the planning, design, construction and operation of water and wastewater conveyance and treatment systems, having led several medium and large strategy and design projects. These include managing projects to provide recycled water schemes to the townships of Gillieston Heights and Chisolm, developing options and concept design for the integration of a UV system into the Singleton sewage treatment plant, and assessing trade waste and inflow infiltration for the RAAF. Prior to GHD, Mark was Hunter Water Corporation's Manager, Treatment Operations and a pivotal member of the Hunter Treatment Alliance.

Market Leader, Water – Newcastle
T: +61 2 4950 4112
E: Mark Gebhard

Rob Saunders – North Queensland

Rob Saunders

Rob is a civil engineer with 30 years’ experience in the water sector, including senior management roles within both consulting and water utility businesses. His extensive skills include planning, design, development, operation and management of a broad range of water infrastructure/services for the municipal, industrial, mining and rural sectors. Rob has been responsible for delivering a range of major water infrastructure projects in North Queensland, including the AUD140 million Townsville Water Supply Upgrade Project, the AUD189 million Townsville Wastewater Upgrade Project and the AUD115 million Ross River Dam Upgrade Project. He has also held industry leadership roles with the Australian Water Association, Australian National Committee on Large Dams, and the Queensland Water Directorate and Engineers Australia.

Market Leader, Water – North Queensland
T: +61 7 4720 0479
E: Rob Saunders

Jill Woodworth – Northern Territory

Jill Woodworth

Jill has more than 30 years’ experience in managing wastewater and drinking water quality project. She is highly skilled in the water treatment discipline and focused on mitigating the environmental impacts of wastewater discharges from the water sector, mining, oil and gas and contaminated sites industries. Jill is knowledgeable in the application and interpretation of federal and state water, sediment and soil quality guidelines, and well-respected for her work as an ecotoxicologist. She is a member of the Society of Environmental Toxicology and Chemistry, Australian Water Association and Australian Marine Science Association.

Market Leader, Water – Northern Territory
T: +61 8 8982 0127
E: Jill Woodworth

Danny Grzan – South Australia

Danny Grzan

Danny has more than 20 years’ experience in the environmental, civil and water sectors. His skillset includes planning, design, development and management of a broad range of water infrastructure/services for the municipal, industrial, mining and environmental sectors. Danny has led or held key roles in many multidisciplinary teams delivering major infrastructure within a range of contract types, including the Murray Darling Basin. These projects have included investigations and designs for civil works on the Murray River and the associated floodplain.

Market Leader, Water – South Australia
T: +61 8 8111 6555
E: Danny Grzan

Warren Traves – South Queensland

Warren Traves

Warren joined GHD in 1988 and has worked with the company in Brisbane, Cairns and Manila across a variety of disciplines, with a particular focus on water. He has played key roles in the Northern Manila Water Supply Project for Maynilad Water and the South East Queensland Water Strategy. Warren was Concept Design Manager and Engineering Manager for the Western Corridor Recycled Water Project in Queensland. On the industry front, Warren was a member of the Australian Water Recycling Centre of Excellence Research Advisory Committee from 2010-2012, and a member of the Advisory Board for the Advanced Water Management Centre at the University of Queensland. He currently chairs the Queensland Regional Advisory Panel of the CRC for Water Sensitive Cities. Warren is also a former Director of GHD.

Market Leader, Water – South Queensland
T: +61 7 3316 3665
E: Warren Traves

Sarah Wheeler – Tasmania

Sarah Wheeler

Sarah has more than 20 years’ experience in design and project management. Specialising in water and wastewater treatment, she has managed multidisciplinary design teams for various water and wastewater projects including the Launceston Sewerage Improvement Program, Queensland Urban Utilities’ Enterprise Excellence Program, and the Inner Doha Resewerage Implementation in Qatar, to name a few. She is an energetic team leader, and has a strong record of successfully delivering designs whilst closely managing commercial arrangements for clients. Sarah is part of the Tasmanian senior management team and is the Client Relationship Manager for TasWater.

Market Leader, Water – Tasmania
T: +61 3 6332 5544
E: Sarah Wheeler

Mark Monaghan – Victoria

key person image

With more than 17 years’ experience in the water industry, both in Australia and internationally, Mark is charged with overseeing the strategic direction of the water sector and the development of GHD’s water business in Victoria. These services include water resources planning, dams, water and wastewater treatment, transfer and collection systems, and recycled water. His skillset includes master planning and high-level strategic development for major water and wastewater infrastructure. With strong leadership and management skills, Mark has worked on a variety of water and wastewater infrastructure projects ranging from high level strategic assessments through to concept/functional and detailed design and construction. Mark is a member of the Australian Water Association and Engineers Australia.

Market Leader, Water – Victoria
+61 3 8687 8000
E: Mark Monaghan

Blair Shackleton – Western Australia

Blair Shackleton

Blair is a chartered chemist with more than 33 years’ experience in the water and power industries, encompassing plant design, process monitoring, troubleshooting, operations support, and project management roles. He aims to provide appropriate sustainable solutions to our clients’ water supply and wastewater disposal requirements, whilst achieving high standards in safety in design and environmental management. Blair has held lead design roles in many water treatment and water supply system developments, ranging from ‘tiny towns’ potable water supplies up to very large desalination plants, including municipal, industrial and power station water management systems.

Market Leader, Water – Western Australia
T: +61 8 6222 8030
E: Blair Shackleton


George Godin

George Godin

George leads our water and wastewater practice in Canada, overseeing the business development and project delivery of municipal infrastructure engineering activities. His career spans more than 35 years in municipal wastewater engineering, and his significant experience encompasses environmental assessment, planning, detailed design and construction services for medium to large municipal wastewater treatment facilities. He has fostered trusted relationships with many large municipal clients and managed wastewater infrastructure capital projects and programs up to CAN550 million. George’s wide-ranging skillset includes water quality trading, conventional secondary treatment, tertiary and advanced wastewater treatment systems using low and high pressure membrane technology to achieve ultra-low Total Phosphorus effluent limits.

Principal, Water and Wastewater – Canada
T: +1 519 884 0510
E: George Godin


Mauricio Ruz

Mauricio Ruz

Mauricio is experienced in water resources management, hydraulic design, piping, hydrology, and business management and administration. He has a particular focus on the design, development and operation of simulation models for hydrological and hydraulic systems.

His career spans a diverse range of infrastructure, including dams, hydropower plants, piping systems, pump stations, open channels, potable water projects, drainage systems, and oil and sands projects. Mauricio graduated in civil engineering from Universidad de Chile and also holds an MBA from Universidad Adolfo Ibáñez.

Service Group Manager, Water – Chile
T: +56 2 24295794
E: Mauricio Ruz

New Zealand

Sioban Hartwell

Sioban Hartwell

Sioban is a civil engineer with more than 25 years’ experience working in New Zealand (NZ), Australia and the USA across a broad range of water infrastructure projects. Her skillset covers minewater management, urban stormwater and irrigation and in recent years she has primarily acted as a project manager delivering large multi-disciplinary projects. This included secondment to Solid Energy NZ as a project manager for all technical studies associated with delivering the business cases for new mines, and managing design and construction of the Central Plains Water Headrace in Canterbury. Sioban was on the Board of Water New Zealand for five years with one year spent as President. She also sat on the NZ Minerals Association Council for three years.

Market Leader, Water – New Zealand
T: +64 3 378 0992
E: Sioban Hartwell


Paul Hansford

Paul Hansford

Paul has more than 30 years’ experience in civil infrastructure and, in particular, the water sector. Based in the Philippines for the past 15 years, he has worked on a variety of projects around the world, including dams, water and wastewater treatment systems, transfer and collection systems. He has been involved in all phases of these projects, ranging from high level strategic assessments through to concept/functional and detailed design as well as construction phase services. Paul is currently responsible for the development and strategic direction of GHD’s water business in the Philippines.

Market Leader, Water – Philippines
T: +63 2 479 5751
E: Paul Hansford


Bassam Halabi

Mike Graver

Bassam’s wide-ranging skills will enable him to add value in a variety of areas to deliver quickly and efficiently. His experience encompasses infrastructure strategy and policy, water supply modelling, water quality, risk, health and safety management, irrigation systems, and leakage, pressure and demand management.

Bassam has also undertaken work on complex projects in challenging conditions across a number of geographic regions.His leadership skills and practical approach are invaluable when quick decisions are required in complex circumstances.

Market Leader, Water – Qatar
T: +974 4 428 9579
E: Bassam Halabi

United Kingdom

Stewart Tennant

Stewart Tennant

With 25 years’ experience in the water industry, Stewart is focused on safe, economic and sustainable solutions for clients, working closely with both contractors and water companies.

A civil and structural engineer by training, he possesses a broad knowledge of the process, mechanical and electrical disciplines to develop holistic client outcomes.

Stewart’s diverse career spans multidisciplinary design and construct project across the entire water cycle, from impounding reservoirs and raw water aqueducts to water and wastewater treatment, and advanced sludge treatment. He is a Fellow of the Institution of Civil Engineers.

Operations Director – Manchester & Glasgow Offices
+44 161 491 4600
E: Stewart Tennant


Thor Young

Thor Young

Thor has more than 20 years' experience in the planning, design, and construction management of water and wastewater systems. He specialises in treatment facility design and plant operations, having managed projects from study through design and construction, with a capital cost of up to USD140 million .

His capabilities also include enhanced biological nitrogen and phosphorus removal, advanced wastewater treatment processes, headworks facilities, membrane bioreactors, and solids stabilisation and dewatering systems. Thor is a member of the International Water Federation and the Water Environment Federation, and has presented papers on a wide variety of topics at local and international conferences.

Service Line Leader, Wastewater Treatment & Recycling
T: +1 240 206 6846
E: Thor Young


  • Tawhara Valley Reservoir Scheme, Wairoa, New Zealand, 2016 Commendation, New Zealand Ministry of Health
  • El Dorado Irrigation District, Kyburz, CA, USA, 2016 Geotechnical Project of the Year, America Society of Civil Engineers (ASCE) – Sacramento Region
  • Ford Street Preserve, Fort Myers, Florida, USA, 2016 Outstanding Achievement Award, Florida Stormwater Association
  • The Orchard Close Flood Alleviation project, Waterloo Road, Ketley, UK, 2016 Sustainability Award, Institution of Civil Engineers (UK) Midlands – GHD Livigunn
  • Ulverston Water Quality Improvement Scheme, Cumbria, UK, 2016 Community Project of the Year, Institution of Civil Engineers (UK), North West – GHD Livigunn


  • Lake Wyangan Modernisaton Project, 2015 Technological Innovation Award Highly Commended – Consult Australia
  • NDRRA Somerset Regional Council Flood Recovery Program, 2015 Collaboration Gold Award – Consult Australia
  • Water Corporation Engineering Design Services, 2015 Client Service Excellence Gold Award – Consult Australia
  • South West Growth Centre Servicing Project, NSW, 2015 Core Values Award (Australian Infrastructure Projects Category) for Stakeholder & Community Engagement activities – International Association for Public Participation (IAP2) Australasia [won with our client Sydney Water]
  • Melbourne Water – Stormwater Asset Condition Assessment, 2015 Award for Spatial Enablement (VIC) – Asia Pacific Spatial Excellence Awards (APSEA), The Spatial Industry Business Association (SIBA) and the Surveying and Spatial Sciences Institute (SSSI) [won by GHD and Melbourne Water]
  • City of Rome Water Filtration Plant, New York, USA, 2015 Environmental Project of the Year Award – American Public Works Association Central New York Branch
  • Burnett River Floodplain Action Plan, 2015 Flood Risk Management Project of the Year – National Floodplain Management Association
  • Integrated Water Management, Nyrstar, Hobart, Tasmania, 2015 Biannual Tasmania Water Environment Merit Award, Australian Water Association
  • Barnard Castle Weir Replacement Project, Country Durham, Commended with Excellence Award, Institution of Civil Engineering – North East
  • Hattah Lakes, Victoria, Excellence in Design Award – World Environmental Day Awards, United Nations Association of Australia – won by GHD in association with Goulburn Murray Water, Murray-Darling Basin Authority and Mallee Catchment Management Authority


  • Barwon Water Alliance, Earth Award (VIC) Civil Contractors’ Federation – Armstrong Creek Trunk Sewer Connection Project
  • Chatham Water Pollution Control Facility (WPCF) Phase I Improvements, Bronze Award - American Council of Engineering Companies, Massachusetts Division
  • Hoxton Park Recycled Water Scheme Stage 1, High Commendation Infrastructure Innovation Award (NSW) – Australia Water Association
  • Mundaring Water Treatment Plant
    • Award for Excellence (WA) – Infrastructure and Building Category
    • Award for Excellence (WA) – Engineering for Regional Communities Category
  • Hyde Park Lakes Restoration
    • Engineers Australia (WA) Award for Excellence – Environment Category
    • Engineers Australia (WA) Award for Excellence – Small Company Projects Category
  • Enlarged Cotter Dam (Bulk Water Alliance), Commended Accredited Rating – Infrastructure Sustainability Council of Australia
  • Port Connect Stormwater Quality Management System, Stormwater Queensland Award for Excellence – Infrastructure Category
  • Screening Brisbane City Council Assets for Profitable Stormwater Harvesting Schemes, Stormwater Queensland Award for Excellence – Infrastructure Category
  • Curtis Island Sewage Infrastructure, Best Paper - Institute of Public Works Engineering Australia Central Queensland Conference
  • Opua Sanitary Works Subsidy Scheme, Hirepool Construction Award (NZD 1-5 million category) – New Zealand Contractors’ Federation


  • Bulk Water Alliance (Includes GHD): Enlarged Cotter Dam
    • Australasian Project of the Year - International Water Power & Dam Construction
    • National Program Innovation Award (Rock Reef habitat for endangered Macquarie Perch) - Australian Water Association
    • 2013 Award for Excellence - Engineers Australia (Canberra)
    • 2013 Award for Excellence - Highly Commended - Concrete Institute of Australia



  • Tetra-Trap Stormwater Device, Arthur Mead Award, Environment and Sustainability, Institute of Professional Engineers New Zealand
  • Sandgate Avenue Drainage Stage 1, Pipelines Alliance
    • Earth Award (Victoria), Civil Contractors Federation
    • Excellence Award (Victoria), Infrastructure projects >AUD20 million category, Engineers Australia
  • Southern Seawater Desalination Integration
    • Excellence Award (Western Australia), Overall Winner, Engineers Australia
    • Excellence Award (Western Australia), Infrastructure and Building Category, Engineers Australia
    • Excellence Award (Western Australia), Management of Engineering Category
  • Christina West, Young Engineer of the Year, Engineers Australia
  • Onondaga County Water Authority, Technical and Management Innovation Award, Projects > USD15 million, American Public Works Association
  • Canal Landing Park, Village of Layetteville, Environmental Project of the Year Award, American Public Works Association
  • Town of Chatham Comprehensive Wastewater Management Planning, Grand Prize for Planning, International American Academy of Environmental Engineering
  • MSABI Safe Water for Better Health Project, Development Award, Hardware Water Category, International Water Association
  • Sandy Tripp, Stanley E. Kappe Award, International American Academy of Environmental Engineering


  • Coffs Harbour Water Reclamation Plant, Recovering, Recycling & Reusing Award, Institute of Public Works Engineering Australia
  • Nyrstar Groundwater Interception System, Silver Award, Environmental Category, Consult Australia
  • Victorian Desalination Project, Silver Award, Environmental Category, Consult Australia