Dr Marilena Stimpfl has over 15+ years’ experience in the field of Acid and Metalliferous Drainage and environmental geochemistry.  She joined BHP in mid-2019, as the Closure Planning – Minerals Australia Specialist GeoEnvironmental Advisor . In her role at BHP, Marilena is responsible for assessing and managing geochemical risks (including acid and metalliferous drainage) across all stages  of the life of mine for BHP Australian assets. In addition, she  supports geochemical risk integration into functional and operational plans and processes,  in accordance with BHP global framework  for geochemical risk management.