
Experience
- Our experience
- Stormwater and wastewater
- Water resources and hydrogeology
- Dams, modelling and asset management
Recent Projects
Project Experience across our water work.

Water Permits for Kiwifruit Orchards
The region’s favourable soil and climate has sparked a surge in the establishment of new kiwifruit orchards and additional water requirements for established orchards. To enhance optimal growing conditions, growers frequently seek groundwater for irrigation during dry spells.…

Tauhei Quarry Hydrogeological Assessment
Stevenson Aggregates, looked to re-consent their existing greywacke quarry operations in Tauhei, New Zealand. This included deepening the quarry pit to gain access to more of the resource.

Ruapehu District Council Town Water Supply
The township of Ōwhango in New Zealand historically relied on a local stream for its water supply. However, accessing this stream for regular intake maintenance and monitoring proved challenging. Seeking a more reliable solution, the Ruapehu District Council (RDC) investigated…

Rotokauri Greenway
Rotokauri Greenway is proposed as a vibrant 4.7km ecological corridor connecting Lake Waiwhakareke and Lake Rotokauri just northeast of Hamilton.

Poverty Bay Flats/Tūranganui A Kiwa
The looming pressures of changing weather patterns and rising sea levels as a result of projected climate change highlighted the need for Gisborne District Council (GDC) to improve the management of groundwater resources in the Tūranganui a Kiwa (Poverty Bay) flats area. GDC…

Ōmokaroa Geothermal Take and Discharge
Ōmokoroa Country Estate (OCE), a Bay of Plenty retirement village, faced expiring resource consents for their geothermal bore. Partnering with WGA for technical support in the renewal process, consents were sought to authorise OCE to extract water for use in a swimming pool and…

Lyttleton Port Container Crane Inspections
Handling exports worth $6.2 billion annually and processing 430,000 twenty-foot equivalent units each year, the Lyttelton Port Company is the biggest port on New Zealand’s South Island.

Hinds/Hekeao Groundwater Replenishment Programme
WGA led the development of New Zealand’s first regional rules around Managed Aquifer Recharge (MAR) focused on improving groundwater storage (quantity) and quality for various economic, cultural and environmental outcomes.

Waterproofing the East
Waterproofing the East involved the design and construction of an Aquifer Storage and Recovery (ASR) Scheme to harvest, treat, store and distribute recycled stormwater for irrigation purposes across the eastern region of Adelaide. The Client for the Project is ERA Water, a…

Thurra River Bridge Replacement
The Thurra River Bridge in East Gippsland, Victoria, was severely damaged during the 2019-20 Black Summer Bushfires and then again during the 2022 floods. The floods also changed the river’s course, requiring updated assessments and engineering plans to deliver the new bridge…

Tea Tree Gully WWTP + ASR
This project was implemented to reduce the Council’s reliance on mains water for irrigation of its parks and reserves. When the scheme was initially drafted, Council was using over 1 GL/a of mains water for irrigation.

Shire of Serpentine Jarrahdale IWMS
With one of the fastest growing communities in Australia, The Shire of Serpentine Jarrahdale was one of the first districts in WA to investigate the adoption of an integrated water management strategy to support their 2050 vision into the future. The Integrated Water Management…