Led implementation of environmental management systems in compliance with AMDAL, RKL/RPL, and applicable mining regulations. Supervised preparation and submission of monthly, quarterly, semester, and annual environmental reports to government authorities. Managed hazardous waste (LB3) across contractors, ensured compliance with storage, manifest, and disposal requirements. Oversaw acid mine drainage (AMD) management including liming systems, sediment ponds, and embankment integrity. Coordinated third-party environmental monitoring and accredited laboratories. Developed, reviewed, and enforced SOP and JSA, and provided leadership, mentoring, and technical guidance to environment officers and field crews.

Implemented environmental programs aligned with AMDAL and RKL/RPL commitments. Prepared and compiled statutory environmental reports for government submission. Conducted monitoring and control of LB3 and AMD treatment systems. Coordinated environmental data collection with government and third-party laboratories. Supported development of SOP and environmental work plans.