Google Links

Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Plan and prepare for site water table construction
   • Access, interpret and apply site water table construction documentation and ensure the work activity is compliant
   • Obtain, read, interpret, clarify and confirm work requirements
   • Identify, obtain and implement traffic signage requirements
   • Select and inspect required plant, tools and equipment and rectify or report any faults
   • Identify and address potential risks, hazards and environmental issues, and implement control measures
   • Select and wear personal protective equipment appropriate for work activities
2. Install site drainage/ dewatering system
   • Identify proposed permanent stormwater outlets from site plans and drawings
   • Erect barricades around the excavation/ installation area
   • Construct sumps and wells
   • Install well points, spears or wick drains
   • Place gravel and filter material in spears, sumps and wells to level above that of existing water table
   • Install surface or submersible pumps in designated locations
   • Connect suction hoses to sumps, wells, spears and pumps
   • Fit pipes and hoses to well points, spears and pumps
3. Establish stormwater treatment system
   • Set out holding pond and support construction operations
   • Monitor, assess and rectify water quality and treatment
   • Release water which meets the approved quality criteria into the main system
4. Operate and maintain drainage and dewatering system
   • Activate pumps to lower water table level
   • Maintain pumps
   • Maintain site drainage and dewatering system and maximise water flow to project requirements
5. Remove and restore area
   • Disconnect and remove pumping system
   • Withdraw and remove well points and spears
   • Restore area according to environmental management plan
6. Clean up
   • Clear work area and dispose of or recycle materials
   • Clean, check, maintain and store plant, tools and equipment
7. Plan and prepare for site water table construction
   • Access, interpret and apply site water table construction documentation and ensure the work activity is compliant
   • Obtain, read, interpret, clarify and confirm work requirements
   • Identify, obtain and implement traffic signage requirements
   • Select and inspect required plant, tools and equipment and rectify or report any faults
   • Identify and address potential risks, hazards and environmental issues, and implement control measures
   • Select and wear personal protective equipment appropriate for work activities
8. Install site drainage/ dewatering system
   • Identify proposed permanent stormwater outlets from site plans and drawings
   • Erect barricades around the excavation/ installation area
   • Construct sumps and wells
   • Install well points, spears or wick drains
   • Place gravel and filter material in spears, sumps and wells to level above that of existing water table
   • Install surface or submersible pumps in designated locations
   • Connect suction hoses to sumps, wells, spears and pumps
   • Fit pipes and hoses to well points, spears and pumps
9. Establish stormwater treatment system
   • Set out holding pond and support construction operations
   • Monitor, assess and rectify water quality and treatment
   • Release water which meets the approved quality criteria into the main system
10. Operate and maintain drainage and dewatering system
    • Activate pumps to lower water table level
    • Maintain pumps
    • Maintain site drainage and dewatering system and maximise water flow to project requirements
11. Remove and restore area
    • Disconnect and remove pumping system
    • Withdraw and remove well points and spears
    • Restore area according to environmental management plan
    • Clear work area and dispose of or recycle materials
    • Clean, check, maintain and store plant, tools and equipment

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 relevant documentation, policies and procedures

implements the requirements, procedures and techniques for the safe, effective and efficient completion of the control of a construction site water table including:

selecting and using the required tools and equipment

installing site drainage/dewatering system

establishing a stormwater treatment system

operating and maintaining drainage/dewatering systems

demonstrates completion of controlling construction site water table that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

installing a drainage/dewatering system that involves spearing

installing a drainage/dewatering system that requires the establishment and operation of a treatment system

---

Knowledge Evidence

The candidate must demonstrate knowledge in controlling construction site water tables through:

interpreting engineering drawings

accessing and applying project quality requirements

identifying, using and applying terminology, definitions and installation methods

identifying, assessing and addressing hazardous materials and situations

identifying and addressing environmental, erosion, sedimentation and waste disposal issues

identifying dewatering system equipment characteristics, technical capabilities and limitations

identifying and applying dewatering system operational, maintenance and basic diagnostic procedures

identifying and complying with site isolation and traffic control responsibilities

identifying and using civil construction terminology

---