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Elements and Performance Criteria

  1. Ensure the surface irrigation system is prepared for operation
  2. Develop and implement start-up and shutdown procedures for a surface irrigation system
  3. Measure performance of a surface irrigation system
  4. Review system performance status

Range Statement


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:

develop procedures and providing training to staff to:

carry out running repairs on irrigation delivery and drainage systems

carry out shut down procedures

check pressure at the head works and control valves

set up pipes, system equipment and outlets

use siphons

develop procedures for starting up, carrying out operational checks and shutting down

identify and record variations in water flow and distribution

identify adverse environmental impacts of irrigation activities and take appropriate remedial action

implement and follow workplace health and safety and environmental requirements

measure and recording water flow rates

provide supervision and training


Knowledge Evidence

The candidate must demonstrate knowledge of:

principles and practices of surface irrigation management

calculating irrigation efficiency using records to review an irrigation system

critical measures for moisture availability:

evapotranspiration

field capacity

infiltration rates

readily available water

water holding capacity

wilting point

environmental impacts of irrigation using water from any ground or underground source

main components of surface irrigation systems

physical soil characteristics such as infiltration rate, water holding capacity and wetted volume in the root zone

pump types used in surface irrigation systems and their operating requirements

pump types used in surface irrigation systems and their operation

set up of headwater, tail water, channels and beds

soil moisture testing techniques

water in soils and plants

water requirements of plants and crops consistent with sound environmental management