Remalia Wallis is a highly experienced professional in the fields of hydrogeology and environmental science, currently serving as a Technical Lead at GHD since September 2025. Previously, Remalia held the position of Environment Team Leader at BTW Company Ltd from June 2023 to September 2025, and also worked at GHD in various roles including Environment Team Leader for the Central North Island and Technical Lead for Hydrogeology from December 2016 to June 2023. Remalia began a career at URS Corporation, an AECOM Company, as a Senior Hydrogeologist/Environmental Scientist and project manager from October 2013 to November 2016, and has prior experience as a Hydrogeologist at Golder and as an Environmental Geologist at Pattle Delamore Partners. Remalia’s academic qualifications include a BSc, PGDipSci (Distinction), and MSc (1st Class Hons.) in Geology and Environmental Science from the University of Auckland, as well as a certification from the Australian Groundwater School at Flinders University.
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