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Evidence Guide: AHCIRG304A - Operate gravity fed 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

 

AHCIRG304A - Operate gravity fed irrigation systems

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

Perform pre-start checks for gravity fed irrigation system

  1. Checks of water, power, fuel and lubricants ensure that all are available and the control system is operational.
  2. Pumps are primed, if necessary, and gates and controls are open or closed in accordance with enterprise procedures.
  3. Pipes, system equipment and outlets are positioned and set up in accordance with enterprise standards and OHS requirements.
Checks of water, power, fuel and lubricants ensure that all are available and the control system is operational.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pumps are primed, if necessary, and gates and controls are open or closed in accordance with enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pipes, system equipment and outlets are positioned and set up in accordance with enterprise standards and OHS requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Start up and inspect system

  1. Syphons and other delivery mechanisms are primed and started in accordance with enterprise procedures.
  2. Start up sequence is implemented in accordance with operations manual and water levels, and pressure built up slowly as directed.
  3. Pressure at the headworks and control valves is within design specifications indicating efficient filter operation, and water is distributed evenly to the targeted areas with minimal wastage and run-off.
  4. All malfunctions, leaks, damage to water courses and blockages are corrected or repaired immediately and reported in accordance with Occupational Health and Safety (OHS) and enterprise procedures.
  5. Head water levels are monitored and maintained.
  6. If used, pumps are monitored during operation, rubbish is cleared from outlets, and pump is backflushed in accordance with enterprise procedures.
  7. Irrigation changes are implemented in accordance with enterprise procedures.
  8. Water reuse systems are checked for clearance and freedom from weeds.
Syphons and other delivery mechanisms are primed and started in accordance with enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Start up sequence is implemented in accordance with operations manual and water levels, and pressure built up slowly as directed.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pressure at the headworks and control valves is within design specifications indicating efficient filter operation, and water is distributed evenly to the targeted areas with minimal wastage and run-off.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

All malfunctions, leaks, damage to water courses and blockages are corrected or repaired immediately and reported in accordance with Occupational Health and Safety (OHS) and enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Head water levels are monitored and maintained.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

If used, pumps are monitored during operation, rubbish is cleared from outlets, and pump is backflushed in accordance with enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Irrigation changes are implemented in accordance with enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Water reuse systems are checked for clearance and freedom from weeds.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Shut down system based upon irrigation indicators

  1. Area is irrigated in accordance with enterprise procedures, and time lag between shut down and end of watering is observed to minimise run-off and deep percolation.
  2. System components are shut down in sequence in accordance with manufacturer's and enterprise procedures.
  3. Drainage and treatment systems are checked in accordance with enterprise procedures.
  4. Tailwater control systems are implemented in accordance with statutory requirements and enterprise standards.
  5. Irrigation activities are reported and recorded in accordance with regulatory requirements and enterprise procedures.
Area is irrigated in accordance with enterprise procedures, and time lag between shut down and end of watering is observed to minimise run-off and deep percolation.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System components are shut down in sequence in accordance with manufacturer's and enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Drainage and treatment systems are checked in accordance with enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Tailwater control systems are implemented in accordance with statutory requirements and enterprise standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Irrigation activities are reported and recorded in accordance with regulatory requirements and enterprise procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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

Evidence is required in the process of operating gravity fed irrigation systems. 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:

read and follow operations manual and irrigation schedules

use pre-start checks

operate and inspect the system

check pressure at the headworks and control valves

carry out running repairs on irrigation delivery and drainage systems

shut down in response to irrigation indicators.

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.

Required Skills and Knowledge

Required skills

identify hazards and implement safe work procedures

set up pipes, system equipment and outlets

start up the system

use syphons

check pressure at the headworks and control valves

carry out running repairs on irrigation delivery and drainage systems

carry out shut down procedures

identify adverse environmental impacts of irrigation activities and appropriate remedial action

implement OHS and environmental policies and procedures relating to the operation of gravity fed irrigation systems

use literacy skills to read, interpret and follow organisational policies and procedures, follow sequenced written instructions, record accurately and legible information collected and select and apply procedures for a range of tasks

use oral communication skills/language competence to fulfil the job role as specified by the organisation, including questioning techniques, active listening, clarifying information and consulting with supervisors as required

use numeracy skills to estimate, calculate and record routine workplace measures

use interpersonal skills to work with and relate to people from a range of cultural, social and religious backgrounds and with a range of physical and mental abilities.

Required knowledge

general irrigation methods for gravity fed irrigation systems

main components of gravity fed irrigation systems

pump types used in gravity fed irrigation systems and their operation

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

inspection procedures

soil/plant/water relationships

water requirements of plants/crops consistent with sound environmental management

shutdown sequence

OHS, environmental and enterprise policies and procedures relating to the operation of gravity fed irrigation systems.

Range Statement

The range statement relates to the unit of competency as a whole.

Systems may require:

gravity fed irrigation systems such as border check, contour irrigation, furrow irrigation, hillside flooding, and basin irrigation. Gravity fed systems may range from manual operation and monitoring to fully automated with computer control and monitoring.