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Elements and Performance Criteria

1. Develop and implement construction procedures
   • Develop employment and contract management procedures
   • Develop procedures for controlling and recording site deliveries
   • Develop procedures for recording the hire of plant and equipment
   • Determine work health and safety procedures, including risk assessment
   • Notify client, authorities and agencies of the schedule of works
   • Develop procedures for dealing with environmental issues associated with construction work
2. Interpret the irrigation system design for the site
   • Determine the purpose, scale and required output of the irrigation system
   • Assess the landscape of the site
   • Determine construction requirements and verify with the designer
   • Select components to meet design specifications and site requirements
3. Organise resource requirements
   • Nominate tasks and timelines and the required resources for each
   • Organise labour requirements
   • Verify and check parts and equipment delivered to the site
   • Select and maintain equipment and machinery
   • Allocate jobs and tasks to the work team
   • Carry out safety induction for the task and site
4. Supervise construction work
   • Interpret plan and supervise construction work
   • Confirm site is prepared and set out appropriately
   • Confirm the correct lay out of the main lateral line
   • Supervise the insertion of sub-mains and flushing manifold
   • Supervise the installation of risers, emitters and other components
5. Complete installation work and test components
   • Connect water supply
   • Check emitters for optimal coverage and efficiency
   • Set valves to allow water to targeted areas
   • Start up and flush the system
   • Attach measuring devices and controllers to the system
6. Commission system
   • Identify operating faults and take corrective action to meet design specifications
   • Calibrate testing and monitoring equipment
   • Carry out testing procedures and record
   • Hand over system in operating order

Range Statement

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Performance Evidence

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence that they can:

conduct work health and safety risk assessment

develop operational procedures

implement employment procedures

interpret irrigation designs

supervise installation tasks such as:

assembling sprinklers, pressure regulators and hose directors

checking operating specifications for pressures and flow rates

completing installation work and testing components

installing irrigation components

installing power and pumping plant

laying and joining sprinkler lateral pipelines

laying and joining supply and distribution pipeline

pressure testing the system

setting out and preparing site

setting up irrigation controllers

undertaking start-up procedures

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Knowledge Evidence

The candidate must demonstrate knowledge of:

principles and practices of irrigation system installation supervision

behaviour of water on varying terrain and soil types

calculations for installing low volume irrigation systems

characteristics and operation of joints, valves and sprinkler components

commissioning procedures

design interpretation

distribution uniformity

employment procedures

licensing requirements for electrical work

operating specifications for pressures and flow rates

project management principles

pump capacity

safe work practices for construction

setting up fertigation equipment

setting up irrigation controllers

soil water retention testing techniques

start-up procedures

types of pumps and water flow rates

volume and pressure requirements

water quality and water filtration techniques

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