EMM administered analytical programs, provided QA/QC support to assess and verify results, catalogued and interpreted results for materials characterization, developed geochemical source term models and integrated those models in a broader site wide water balance and water quality model, interpreted results and advised our client of efficiency gains and opportunities to reduce risk across the operations.
EMM consulted with other parties, in various aspects such as trade-off study review, technical review and collaboration to advance specific interests such as ARD mitigation techniques (and geochemical waste stabilization) and engaging with stakeholders such as Ero Copper’s environmental groups to ensure appropriate water quality considerations were met and adhered to for planning purposes.
EMM engaged with discipline experts in Geotechnical engineering, metallurgy, process engineers and coordinated various considerations in the advancement of resiliency studies, and considered all relevant stakeholders in communications. EMM worked to reduce costs associated with long term waste management, optimized water treatment sizing based on climate variability and potentially changing source terms, addressed environmental considerations and external stakeholders (i.e., down-stream users), and employed global best practice such as ICMM’s catchment specific approach to water management. EMM employed local water quality guidelines (CONOMA Resolution 357 and 430) for the purposes of assessing discharge and effluent discharge respectively.
EMM constructed a fully integrated water balance and water quality model for the purposes of assessing site water balance, process plant water availability and resiliency, contact water capture and management and consideration of water quantity/quality requiring capture and treatment to meet discharge criteria. The model was also used to optimize water treatment plant sizing and contact water attenuation.