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Elements and Performance Criteria

1. Plan and prepare for leaching process
   • Access, interpret and apply leaching process documentation and ensure the work activity is compliant
   • Obtain, read, interpret, clarify and confirm work requirements
   • Communicate with other personnel using approved communication methods
   • Select and wear personal protective equipment appropriate for work activities
   • Select appropriate type of auxiliary equipment for work activities
   • Perform equipment pre-start checks
   • Identify and address potential risks, hazards and environmental issues, and implement control measures
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
   • Use approved dust suppression and extraction methods
   • Ensure area is well ventilated
2. Start-up equipment in sequence
   • Carry out start-up procedures and complete start-up checks according to plant configurations and system requirements
   • Confirm plant is operational
3. Operate and monitor equipment
   • Read, interpret and apply data from equipment indicators to determine leaching efficiency
   • Continuously inspect and monitor operations/plant and containment areas
   • Adjust equipment to optimise leaching
   • Add reagents to achieve operating parameters
   • Adjust flows to meet downstream requirements
   • Carry out operator level maintenance to maintain condition of equipment
   • Complete all required documentation concisely and on time
   • Pass on end of shift information to oncoming shift
4. Shutdown in sequence and/or isolate equipment
   • Shutdown and/or isolate equipment based on process and safety requirements
   • Perform post shutdown and/or isolation checks
5. Conduct housekeeping activities
   • Clear work area and dispose of or recycle materials
   • Clean and maintain condition of equipment, ensure suitability for use, and address/report issues
   • Process records
6. Plan and prepare for leaching process
   • Access, interpret and apply leaching process documentation and ensure the work activity is compliant
   • Obtain, read, interpret, clarify and confirm work requirements
   • Communicate with other personnel using approved communication methods
   • Select and wear personal protective equipment appropriate for work activities
   • Select appropriate type of auxiliary equipment for work activities
   • Perform equipment pre-start checks
   • Identify and address potential risks, hazards and environmental issues, and implement control measures
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
   • Use approved dust suppression and extraction methods
   • Ensure area is well ventilated
7. Start-up equipment in sequence
   • Carry out start-up procedures and complete start-up checks according to plant configurations and system requirements
   • Confirm plant is operational
8. Operate and monitor equipment
   • Read, interpret and apply data from equipment indicators to determine leaching efficiency
   • Continuously inspect and monitor operations/plant and containment areas
   • Adjust equipment to optimise leaching
   • Add reagents to achieve operating parameters
   • Adjust flows to meet downstream requirements
   • Carry out operator level maintenance to maintain condition of equipment
   • Complete all required documentation concisely and on time
   • Pass on end of shift information to oncoming shift
9. Shutdown in sequence and/or isolate equipment
   • Shutdown and/or isolate equipment based on process and safety requirements
   • Perform post shutdown and/or isolation checks
10. Conduct housekeeping activities
    • Clear work area and dispose of or recycle materials
    • Clean and maintain condition of equipment, ensure suitability for use, and address/report issues
    • Process records

Performance Evidence

Evidence is required to be collected that demonstrates a candidate’s competency in this unit. Evidence must be relevant to the roles within this sector’s work operations and satisfy all of the requirements of the performance criteria of this unit and include evidence that the candidate:

locates and applies applicable documentation, policies and procedures

implements the requirements, procedures and techniques for the safe, effective and efficient completion of the leaching process including:

diagnosing faults, reporting defects and identifying repair requirements

interpreting and applying reports

accurate records maintenance

selecting and using relevant tools and equipment

lifting techniques (manual, cranes and loads)

conducting housekeeping activities

works effectively with others to undertake and complete the leaching process in a way that meets all of the required outcomes including:

using a range of communications techniques and equipment to convey information to others

maintaining written and verbal reporting requirements and procedures

organising work activities to meet all task requirements

communicating clearly and concisely with others to receive and clarify work instructions

demonstrates completion of the leaching process that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

inspecting and monitoring operations/plant and containment areas

adjusting equipment to optimise leaching

adding reagents to achieve operating parameters

adjust flows to meet downstream requirements

carrying out operator level maintenance

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Knowledge Evidence

The candidate must demonstrate knowledge of conducting leaching process through:

accessing, interpreting and applying organisation and site requirements and procedures for:

WHS, site safety and emergency requirements

environmental principles

isolation procedures

operational procedures and checks

equipment operating parameters

leaching principles and safety requirements

hazardous substances procedures and consequences of spills

contaminant identification

interpreting metallurgical and technical data

interpreting pumping system and flow charts

identifying reagent types

monitoring sampling

identifying types of ores

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