JON WILLIAMSON

Managing Director Principal Hydrogeologist

JON WILLIAMSON

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Jon is a Principal Hydrogeologist and Hydrologist with an M.Sc.Tech. (Hons.1) from The University Of Waikato. Jon founded WWLA in 2015 after 20 years with global multi-disciplinary consultancies in Auckland and Sydney. Jon is a trusted advisor to a diverse range of clients, which has been earned through his expert understanding of many differing hydrological system responses to varying stresses, and his ability to effectively communicate complex ideas, options to solve problems, and provision of accurate and timely advice to clients.

JOSH MAWER

Senior Hydrologist

JOSH MAWER

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Josh is a Senior Hydrologist who joined WWLA in 2018 with an M.Sc (Hons. 1) from The University of Waikato. Josh has four years of professional experience in coastal and river hydrodynamics and water quality modelling in Australia and the United Kingdom. Josh's skills also include environmental and modelling data analysis using programming languages such as Python and Matlab, and Geospatial Information Systems.

BEN CRAW

Senior Rural Infrastructure Advisor

BEN CRAW

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JESSIE LOFT

Experienced Graduate Hydrologist

JESSIE LOFT

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Jessie is an Experienced Graduate Hydrologist who joined WWLA in 2017 after completing a M.Sc. in Hydrology from University Of Otago. Jessie has expertise in hydrological and water quality modelling - particularly in the development and use of SOURCE catchment water quality models using the SMWBM rainfall-runoff generator.

NICK JOWSEY

Experienced Graduate Hydrogeologist

NICK JOWSEY

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Nick is an Experienced Graduate Hydrogeologist with a Master of Engineering degree majoring in Geology from the University of Canterbury. Nick has experience using electrical resistivity tomography and stable isotope analysis in groundwater investigations. Nick also has three years’ experience as an Environmental Coordinator on major infrastructure projects such as Transmission Gully in Wellington. Nick also has a Master of Public Policy from the University of Auckland (1st Hons), hence demonstrates highly developed skills as an effective communicator, strategic planner, and rigorous problem-solver.

PENELOPE LINDSAY

Contaminated Land Specialist

PENELOPE LINDSAY

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Penelope holds a Master's degree in geology from the University of Auckland awarded in 2014 and joined the WWLA team as a contaminated land specialist in November 2020 after six years professional industry involvement. Penelope has a range of experience across the contaminated land sector, including soil, groundwater and surface water investigations of contaminated sites, closed landfill management, consenting applications and compliance under the NES Soil and local government requirements, construction monitoring, and long-term management plans.

WENDI WILLIAMSON

Principal Contaminated Land Advisor

WENDI WILLIAMSON

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Wendi is a Principal Contaminated Land Specialist and Environmental Advisor with an M.Sc. (Hons.) from The University Of Waikato and over 25 years of professional experience in New Zealand, Australia and the Pacific. Wendi joined WWLA in August 2018 after 20 years with Tonkin+Taylor in Auckland. Wendi’s problem-solving ethos has ensured she is a trusted advisor for a range of client organisations. Her expertise in the environmental sector is extensive with technical expertise in contaminated land investigation, remediation and management, resource consents for contaminated land, acid sulfate soils, land development, earthworks planning and materials management.

LOUISE SOLTAU

Senior Hydrogeophysicist

LOUISE SOLTAU

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Louise is a senior geophysicist and hydrogeologist with an M.Sc. in geology and geophysics from the University of Missouri Rolla, USA (2000). Louise has worked in the research and consulting industries applying different geophysical techniques (mostly electrical methods) to hydrogeological analyses for 17 years in South Africa. As a consultant, Louise has applied geophysics to groundwater exploration (aquifer identification) and engineering applications (dam wall and shallow foundation surveys). Louise joined WWLA in March 2019, where she will continue to apply her geophysical and hydrogeological skills using WWLA's ABEM Terrameter LS 2 Advanced 8/81 electrical resistivity equipment.

JACOB SCHERBERG

Intermediate Hydrogeologist

JACOB SCHERBERG

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Jacob is an Intermediate Hydrologist with a M.S. in Water Resource Engineering and specialist expertise in numerical modelling since 2009. Jacob has developed numerous hydrological model applications to evaluate groundwater, surface water, and vadose zone conditions for projects ranging from local to basin scale. His work has focused on synthesising hydrological and water use data to provide quantitative information to optimise strategies for effective water resource management, using tools such as the Department of Water Resources (California) Integrated Water Flow Model (IWFM).

CHERISE MARTIN

Contaminated Land Scientist

CHERISE MARTIN

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Cherise joined the WWLA team in 2020 and is a Geologist with a Bachelor of Science (Hons.) in Geology from the University of Auckland. Cherise specialises in contaminated land with over fives years experience working throughout New Zealand, with experience in investigation, analysis, remediation and monitoring associated with potentially contaminated sites. She has worked on various land development projects ranging from small residential sites to large construction and development projects for clients, from initial assessment through to construction completion and occupation, including post-construction monitoring.

AIMEE WANSBONE

Contaminated Land Scientist

AIMEE WANSBONE

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CHRIS FROST

Senior Primary Industries Infrastructure Advisor

CHRIS FROST

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Chris is a Primary Industry Infrastructure Consultant with 17 years of professional experience across a diverse range of primary industry and land development projects. Chris is based in Tai Tokerau (Northland), joining WWLA after 13 years with WSP Opus in Christchurch, Perth and Whangarei. Chris studied civil engineering and Computer-Aided Design (CAD) in Canterbury, and lately Farm and Land Management at Massey University. Chris is outcome-focused and effective in delivering pragmatic solutions for a variety of private, iwi, corporate and government entities in the primary sector.

BEN TAIT

Senior Planner

BEN TAIT

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ZHE ZHANG (JOHN)

Software Developer

ZHE ZHANG (JOHN)

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John is a Senior Software Developer who joined WWLA in 2018. John has expertise in both front-end and back-end development. His work also includes software performance optimization and IT service support.

HAGEN ROBERTSON

Graduate Contaminated Land Scientist / Hydrogeologist

HAGEN ROBERTSON

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Hagen is a Hydrogeological and Contaminated Land Scientist with a Bachelor of Science (Hons.) in Geology and Earth Sciences from the University of Auckland. Hagen joined the team in 2019 and has a strong practical working background after working for two years at McMillan Drilling Group, where his role involved a range of technical duties including performing test pumping exercises on groundwater bores, downhole CCTV surveys, ground strength testing, and driller's offsider.

MARNO RAATH

Principal Water Engineer

MARNO RAATH

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MARTELL LETICA

Principal Planner

MARTELL LETICA

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LAUREN WINDROSS

Senior Contaminated Land Advisor

LAUREN WINDROSS

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Lauren is a senior contaminated land specialist with a BSc (Hons) from the University of Auckland. Lauren joined WWLA in 2019 after seven years of experience practicing in contaminated land following two years experience in geotechnical, geothermal and mining industries. Her experience includes providing specialist contaminated land advice on infrastructure projects and working with developers from concept to construction. Lauren enjoys working in multi-disciplinary teams to bring together a range of ideas and develop innovative solutions for her clients.

ROYDON NUTSFORD

Hydrogeologist

ROYDON NUTSFORD

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Roydon joined WWLA in April 2020 as an intermediate hydrogeologist with a BSc degree in Geology and Geophysics from the University of Auckland, awarded in 2014. Roydon has five years of professional industry involvement in Auckland and Tauranga assisting infrastructure and water supply clients to manage and use available groundwater resources sustainably through developing field investigation programmes, numerical groundwater flow models and groundwater consenting support.

ELISE LEGARTH

Graduate Hydrologist

ELISE LEGARTH

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Elise is a Graduate Hydrologist who joined WWLA in 2019 with a BSc double major in Earth Science and Agribusiness from the University of Waikato. Elise’s skills include surface water modelling, geospatial information systems, agri and horticultural business economics.

SADHVI SELVARAJ

Remote Sensing Scientist

SADHVI SELVARAJ

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Sadhvi is a Remote Sensing Scientist with an MSc from the University of Leeds (UK) and six years of professional experience at Airbus (UK). She joined WWLA in Nov 2020 having submitted her PhD thesis, on hyperspectral analysis of seaweeds and utilizing unmanned aerial vehicle (UAV) to discriminate submerged seaweed species, at AUT. Her experience includes working with various satellite / UAV based multispectral and Synthetic Aperture Radar (SAR) remote sensing data for various offshore and onshore applications, product training and GIS consultancy. She has also been a part of European Space Agency’s (ESA) Services and Applications for Emergency Response (SAFER) team supporting natural disaster mapping.