Unit of competency Outline
Date retreived
22/07/2026 8:04 PM AWST
22/07/2026 8:04 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Evaluate water supply for irrigation
Evaluate water supply for irrigation
Unit of competency
National Code
AHCIRG426A
AHCIRG426A
State Code
WE050
WE050
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
09/04/2013
Field of Education
059999 - Agriculture, Environmental And Related Studies, N.e.c.
Original Release Date
09/04/2013
Nominal Hours
45
Description
This Unit of Competency specifies the outcomes required to evaluate a water supply for an irrigation operation and defines the standard required to: determine the amount required and quality parameters for irrigation water; carry out water sampling and analyse the results; compare costing and delivery arrangements for alternative water sources; and complete purchasing arrangements.
Notes
Elements and Performance Criteria
1 Determine water needs for irrigation
- 1.1 The water needs of plants to be irrigated are determined
- 1.2 The permeability of the soil and deep drainage losses are calculated
- 1.3 Evapotranspiration rates are calculated through the growing season
- 1.4 Soil water deficits throughout the season are calculated based on expected rainfall
- 1.5 The amount of irrigation water required through the growing season is calculated
2 Assess a water source for water quality
- 2.1 Water source is tested for electrical conductivity and results analysed
- 2.2 Water source is tested for ionic composition and results analysed
- 2.3 Water source is tested for biological composition and results analysed
3 Determine cost and availability of alternative water sources
- 3.1 Water availability and access requirements are evaluated for water sources
- 3.2 Capital expenditure requirements are costed for water sources
- 3.3 Operating expenditure requirements are costed for water sources
- 3.4 Regulatory requirements for purchasing irrigation water are investigated and incorporated into business planning
4 Complete water sourcing and/or acquisition arrangements
- 4.1 Contractual arrangements are made for purchase or sourcing of water
- 4.2 Planning is carried out for short term purchasing or selling of water depending on seasonal conditions if necessary
The range statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Water sources may include:
town water
permanent watercourses
storages
underground water
recycled water.
Water sources may include:
town water
permanent watercourses
storages
underground water
recycled water.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
Critical aspects for assessment and evidence required to demonstrate competency in this Unit
The evidence required to demonstrate competency in this Unit must be relevant to workplace operations and satisfy holistically all of the requirements of the performance criteria and required skills and knowledge and include achievement of the following:
determine the amount required and quality parameters for irrigation water
carry out water sampling and analyse the results
compare costing and delivery arrangements for alternative water sources
complete purchasing arrangements.
Context of and specific resources for assessment
Competency requires the application of work practices under work conditions. Selection and use of resources for some worksites may differ due to the regional or enterprise circumstances.
Overview of assessment
Critical aspects for assessment and evidence required to demonstrate competency in this Unit
The evidence required to demonstrate competency in this Unit must be relevant to workplace operations and satisfy holistically all of the requirements of the performance criteria and required skills and knowledge and include achievement of the following:
determine the amount required and quality parameters for irrigation water
carry out water sampling and analyse the results
compare costing and delivery arrangements for alternative water sources
complete purchasing arrangements.
Context of and specific resources for assessment
Competency requires the application of work practices under work conditions. Selection and use of resources for some worksites may differ due to the regional or enterprise circumstances.
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| BAN78 | AHCIRG426 | Evaluate water supply for irrigation | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| J158 | AHC41112 | Certificate IV in Irrigation | Qualification |