Julian Orth

BE (Hons) MEng (Sc) MIEAust CPEng RPEQ

Associate / Principal Engineer / NT Manager

Julian specialises in providing technical advice in riverine flooding and stormwater management.

He is focused on delivering economical and environmentally sustainable engineering solutions for projects ranging from small sub-division developments to catchment-scale stormwater trunk drainage studies and mine-related environmental impact statements.

Rhys Cullen

BE (Env) (Hons) MIEAust

Associate / Principal Engineer

Rhys has over 15 years’ experience in water and wastewater engineering, developing hydrological and hydraulic models for large-scale catchment studies, urban developments and mining projects. He has delivered surface-water studies for numerous open-cut and underground mining projects, comprising detailed conceptual and operational water balance modelling, sediment and erosion control, and design of diversion and flood protection / mitigation structures.

Matthew Briody

BE (Hons) RPEQ


Matthew has over 17 years’ experience in the water industry, and has applied his skills in hydrology, hydraulic design, water-quality assessment and detailed design on mining, local government and land development projects.

Since joining WRM, Matthew has specialised in surface water assessments for mine-related environmental impact assessments and operational water management studies.