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Evidence Guide: AHCIRG434 - Manage surface irrigation systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

AHCIRG434 - Manage surface irrigation systems

What evidence can you provide to prove your understanding of each of the following citeria?

Ensure the surface irrigation system is prepared for operation

  1. Assess staff training needs for carrying out pre-start checks and routine servicing and arrange training for those that require it
  2. Program or adjust the irrigation controller to meet the required schedule
  3. Develop procedures for adjusting valves and checking filters and emitters
Assess staff training needs for carrying out pre-start checks and routine servicing and arrange training for those that require it

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Program or adjust the irrigation controller to meet the required schedule

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop procedures for adjusting valves and checking filters and emitters

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop and implement start-up and shutdown procedures for a surface irrigation system

  1. Develop start-up procedures for the system
  2. Provide training in priming pumps and setting gates to commence irrigating
  3. Develop shut down sequence and isolation procedures
  4. Specify soil conditions for operation and maintain tracks to reduce compaction
Develop start-up procedures for the system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Provide training in priming pumps and setting gates to commence irrigating

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop shut down sequence and isolation procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Specify soil conditions for operation and maintain tracks to reduce compaction

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure performance of a surface irrigation system

  1. Record variations in pressures at the head works and control valves
  2. Water flow rates are measured and recorded in accordance with enterprise policy and procedures
  3. Measure and record water flow rates
  4. Identify and record variations in water flow and distribution
  5. Measure and record pump performance parameters as necessary
  6. Measure and record variations in pump performance parameters where relevant
  7. Inspect distribution, drainage and water measurement systems and identify and fix malfunctions in system and record actions
  8. Identify and record factors external to the system that may cause interference
Record variations in pressures at the head works and control valves

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Water flow rates are measured and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure and record water flow rates

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and record variations in water flow and distribution

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure and record pump performance parameters as necessary

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure and record variations in pump performance parameters where relevant

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect distribution, drainage and water measurement systems and identify and fix malfunctions in system and record actions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and record factors external to the system that may cause interference

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Review system performance status

  1. Record system pressures and variations
  2. Record system flow rates and variations
  3. Calculate and record distribution uniformity and mean application rates
  4. Determine and record watering depth
  5. Measure quantity and quality of tail water, and amount of water reused
  6. Calculate energy use and water efficiency and compare to industry benchmarks
Record system pressures and variations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record system flow rates and variations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate and record distribution uniformity and mean application rates

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine and record watering depth

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure quantity and quality of tail water, and amount of water reused

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate energy use and water efficiency and compare to industry benchmarks

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Ensure the surface irrigation system is prepared for operation

1.1 Assess staff training needs for carrying out pre-start checks and routine servicing and arrange training for those that require it

1.2 Program or adjust the irrigation controller to meet the required schedule

1.3 Develop procedures for adjusting valves and checking filters and emitters

2. Develop and implement start-up and shutdown procedures for a surface irrigation system

2.1 Develop start-up procedures for the system

2.2 Provide training in priming pumps and setting gates to commence irrigating

2.3 Develop shut down sequence and isolation procedures

2.4 Specify soil conditions for operation and maintain tracks to reduce compaction

3. Measure performance of a surface irrigation system

3.1 Record variations in pressures at the head works and control valves

3.2 Water flow rates are measured and recorded in accordance with enterprise policy and procedures

3.3 Measure and record water flow rates

3.4 Identify and record variations in water flow and distribution

3.5 Measure and record pump performance parameters as necessary

3.6 Measure and record variations in pump performance parameters where relevant

3.7 Inspect distribution, drainage and water measurement systems and identify and fix malfunctions in system and record actions

3.8 Identify and record factors external to the system that may cause interference

4. Review system performance status

4.1 Record system pressures and variations

4.2 Record system flow rates and variations

4.3 Calculate and record distribution uniformity and mean application rates

4.4 Determine and record watering depth

4.5 Measure quantity and quality of tail water, and amount of water reused

4.6 Calculate energy use and water efficiency and compare to industry benchmarks

Required Skills and Knowledge

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Ensure the surface irrigation system is prepared for operation

1.1 Assess staff training needs for carrying out pre-start checks and routine servicing and arrange training for those that require it

1.2 Program or adjust the irrigation controller to meet the required schedule

1.3 Develop procedures for adjusting valves and checking filters and emitters

2. Develop and implement start-up and shutdown procedures for a surface irrigation system

2.1 Develop start-up procedures for the system

2.2 Provide training in priming pumps and setting gates to commence irrigating

2.3 Develop shut down sequence and isolation procedures

2.4 Specify soil conditions for operation and maintain tracks to reduce compaction

3. Measure performance of a surface irrigation system

3.1 Record variations in pressures at the head works and control valves

3.2 Water flow rates are measured and recorded in accordance with enterprise policy and procedures

3.3 Measure and record water flow rates

3.4 Identify and record variations in water flow and distribution

3.5 Measure and record pump performance parameters as necessary

3.6 Measure and record variations in pump performance parameters where relevant

3.7 Inspect distribution, drainage and water measurement systems and identify and fix malfunctions in system and record actions

3.8 Identify and record factors external to the system that may cause interference

4. Review system performance status

4.1 Record system pressures and variations

4.2 Record system flow rates and variations

4.3 Calculate and record distribution uniformity and mean application rates

4.4 Determine and record watering depth

4.5 Measure quantity and quality of tail water, and amount of water reused

4.6 Calculate energy use and water efficiency and compare to industry benchmarks

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

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

Range Statement