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Evidence Guide: AHCIRG324A - Operate 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

 

AHCIRG324A - Operate surface irrigation systems

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

Carry out pre-start checks

  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:

 

 

 

 

 

 

 

Operate and monitor the surface irrigation 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 checked
  4. Water is distributed evenly to the targeted areas with minimal wastage and run-off
  5. 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
  6. All malfunctions, leaks, damage to water courses and blockages are corrected or repaired immediately and reported in accordance with enterprise procedures
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 checked

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Water is distributed evenly to the targeted areas with minimal wastage and run-off

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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:

 

 

 

 

 

 

 

All malfunctions, leaks, damage to water courses and blockages are corrected or repaired immediately and reported in accordance with enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure and interpret water levels, flow rates and volume of water used

  1. Head water levels are monitored and maintained
  2. All water outlets are operating in accordance with operating procedures
  3. Blocked inlets and outlets are replaced or cleared
  4. Flow rates and water usage are measured and recorded
  5. Irrigation changes are implemented in accordance with enterprise procedures
Head water levels are monitored and maintained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

All water outlets are operating in accordance with operating procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Blocked inlets and outlets are replaced or cleared

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Flow rates and water usage are measured and recorded

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Irrigation changes are implemented in accordance with enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor drainage and tailwater systems

  1. Water intake, conveyance and distribution, drainage and tailwater is monitored
  2. Water reuse systems are checked for clearance and freedom from weeds
  3. If used, pumps are monitored during operation, rubbish is cleared from outlets, and pump is backflushed in accordance with enterprise procedures
Water intake, conveyance and distribution, drainage and tailwater is monitored

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Water reuse systems are checked for clearance and freedom from weeds

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:

 

 

 

 

 

 

 

Shut down surface irrigation in response to irrigation indicators

  1. System components are shut down in sequence in accordance with manufacturer’s and enterprise procedures
  2. Irrigation activities are reported and recorded in accordance with regulatory requirements and enterprise procedures
System components are shut down in sequence in accordance with manufacturer’s and enterprise procedures

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 include:

Ability to:

carry out running repairs on irrigation delivery and drainage systems

inspection procedures

start up the system

start and move syphons and spiles and check flow

operate surface irrigation equipment

check pressure at the head works and control valves

carry out running repairs on irrigation delivery and drainage systems

adjust and monitor check valves

carry out shut down procedures, clean equipment and dispose of waste

measure water usage

identify variations in water flow and distribution.

Required knowledge includes:

Knowledge of:

general irrigation methods for surface irrigation systems

main components of surface irrigation systems

possible environmental impacts of fertigation activities

energy efficiency indicators/ benchmarks for surface irrigation

soil characteristics

soil/plant/water relationships

water requirements of plants/crops consistent with sound environmental management

critical measures for moisture availability

readily available water

water holding capacity

wilting point

field capacity

infiltration rates

evapotranspiration

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

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. 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.

Surface irrigation systems may include:

any systems that apply water across the surface of a levelled or contoured area. These include furrow, border and basin irrigation.

System components may include:

diversion and conveyancing structures:

intake structures

diversion weirs and gates

field distribution structures:

canals

pipelines

drop structures and chutes

division boxes and turnouts

checks

crossing structures:

flumes

culverts

inverted siphons

water measurement structures

weirs

parshall flumes

cut-throat flumes.