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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Deposit tailings onto an impoundment-type dam 
SAQA US ID UNIT STANDARD TITLE
9728  Deposit tailings onto an impoundment-type dam 
ORIGINATOR
SGB Mining and Minerals 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 2  NQF Level 02  7 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2005-04-13  2007-11-28  SAQA 0859/05 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2008-11-28   2011-11-28  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard is replaced by: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
252285  Deposit tailings onto a tailings dam  Level 2  NQF Level 02  7   

PURPOSE OF THE UNIT STANDARD 
This unit standard is for persons responsible for receiving slurry and controlling deposition of the slurry onto an impoundment type tailings dam, controlling the pool and decanting the supernatant water. A person credited with this unit standard can:
  • Demonstrate knowledge relating to the deposition of tailings.
  • Prepare to deposit tailings.
  • Deposit tailings using the impoundment method.
  • Complete duties pertaining to the deposition of tailings. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    Literacy and numeracy at ABET 4 or equivalent.
    Competence in the following:
  • occupational health, safety and environmental practices within the tailings environment.
  • use of hand tools.
  • reading and interpretation of site plans.
  • fundamentals of tailings dams - Level one. 
    		•

    UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Deposit tailings onto an impoundment-type dam. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Demonstrate knowledge relating to the deposition of tailings. 

    ASSESSMENT CRITERION 2 
    2. Prepare to deposit tailings. 

    ASSESSMENT CRITERION 3 
    3. Deposit tailings using the impoundment method. 

    ASSESSMENT CRITERION 4 
    4. Complete duties pertaining to the deposition of tailings. 

    SPECIFIC OUTCOME 2 
    Demonstrate knowledge relating to the deposition of tailings. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. The legal and specified requirements pertaining to a safe, healthy work environment in the deposition of tailings and the consequences of not adhering to the above are explained. 

    ASSESSMENT CRITERION 2 
    2. The importance of the deposition of tailings in terms of achieving specified production requirements is explained. 

    ASSESSMENT CRITERION 3 
    3. Hazards and associated risks, pertaining to the deposition process, identified through specified risk assessment procedures, and the actions to be taken should they be encountered are explained. 

    ASSESSMENT CRITERION 4 
    4. The deposition method and control is explained in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    5. The principal components and the specifications of the deposition system are identified and their functions explained. 
    ASSESSMENT CRITERION RANGE 
    Range: Must include:
  • valves,
  • pipelines,
  • drainage pipes,
  • pumps,
  • penstocks
  • access ways
  • beach and pool control
  • freeboard
  • safety devices.
     
    		•

    ASSESSMENT CRITERION 6 
    6. The specified communication requirements pertaining to the deposition of tailings and the consequences of non-compliance are explained. 

    ASSESSMENT CRITERION 7 
    7. The actions to be taken, should specified sub-standard conditions and problems be encountered, are explained. 

    SPECIFIC OUTCOME 3 
    Prepare to deposit tailings. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Personal protective and safety equipment is verified, examined and used in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    2. Tools and equipment are verified and examined in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    3. Workplace hazards and associated risks are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    4. The deposition area is examined and substandard conditions are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    5. The slurry pipes and valves are set up in accordance with specified requirements. 

    ASSESSMENT CRITERION 6 
    6. Safety and health procedures towards self and others are maintained in accordance with specified requirements. 

    SPECIFIC OUTCOME 4 
    Deposit tailings. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Personal protective and safety equipment is used in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    2. Tools and equipment are used in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    3. Work related hazards and associated risks are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    4. The deposition of tailings is controlled and monitored in accordance with specified requirements. 

    ASSESSMENT CRITERION 5 
    5. The decanting of supernatant pool water is monitored and controlled in accordance with specified requirements. 

    ASSESSMENT CRITERION 6 
    6. Safety devices are installed in accordance with specified requirements. 

    ASSESSMENT CRITERION 7 
    7. Problems encountered are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 8 
    8. The deposition process is consistent with environmental policy and other specified requirements. 

    ASSESSMENT CRITERION 9 
    9. Safety and health procedures towards self and others are maintained in accordance with specified requirements. 

    SPECIFIC OUTCOME 5 
    Complete the duties pertaining to the deposition of tailings 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Personal protective and safety equipment is dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 2 
    2. Tools and equipment are dealt with in accordance with specified requirements. 

    ASSESSMENT CRITERION 3 
    3. Good housekeeping practices are maintained in accordance with specified requirements. 

    ASSESSMENT CRITERION 4 
    4. Specified reporting and data-recording requirements are met. 

    ASSESSMENT CRITERION 5 
    5. Preparation for maintenance is in accordance with specified requirements. Specified lock-out procedures are adhered to. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    1. Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
    2. Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.
    3. Moderation of assessment will be overseen by the relevant ETQA according the moderation guidelines in the relevant qualification and the agreed ETQA procedures. 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Embedded knowledge is addressed in specific outcome 1: "demonstrate knowledge relating to the deposition of tailings", as well as other assessment criteria throughout the unit standard. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/ group/ organisation/ community. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one`s activities responsibly and effectively. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others). 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    UNIT STANDARD NOTES 
    This unit standard has been replaced by unit standard 252285, which is "Deposit tailings onto a tailings dam", Level 2, 7 credits.

    Terminology:


    Specified requirements include Legal requirements and are contained in one or more of the following documents:
  • Managerial instructions
  • Codes of practice
  • Plant standards
  • Standard task procedures
  • Risk assessment documentation
  • Working guides
  • Manufacturer`s specifications
  • Health and Safety management programme
  • Mines Health and Safety Act
  • Minerals Act and regulations
  • Security procedures
  • Environmental Legislation

    Tailings - the waste residue generated by mines and industries after the recovery of the desirable commodities

    Tailings dam - the repository where the tailings are deposited for disposal.

    Penstock - the vertical drainage tower typically located in the basin of the dam.

    Deposition - the process or act of depositing the tailings typically as a slurry.

    Slurry - the mixture of tailings and water.

    Decant - the process of removing free water from the surface of the dam - typically either by a penstock, or by pumping.

    Impoundment - structures, walls, embankments or a depression that contains the tailings. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  49045   National Certificate: Lump Ore Beneficiation  Level 2  NQF Level 02  Passed the End Date -
    Status was "Registered"     		 2007-11-28  Was MQA until Last Date for Achievement 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. DE BEERS CONSOLIDATED MINES VENETIA 
    2. FOSKOR (PTY) LTD 
    3. MODIKWA MINING PERSONNEL SERVICES PTY L TD 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.