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Evidence Guide: AHCIRG420A - Manage a low volume irrigation system

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

 

AHCIRG420A - Manage a low volume irrigation system

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

Ensure the low volume irrigation systemis prepared for operation

  1. Staff are trained in carrying out pre-start checks and routine servicing
  2. The irrigation controller is programmed and/or adjusted to meet the required schedule
  3. Procedures are established for adjusting valves and checking filters and emitters
Staff are trained in carrying out pre-start checks and routine servicing

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The irrigation controller is programmed and/or adjusted to meet the required schedule

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Procedures are established for adjusting valves and checking filters and emitters

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

  1. Start-up procedures for a low volume irrigation system are developed according to system specifications and technical manuals
  2. Shut down sequence and isolation procedures are developed according to system specifications and technical manuals
  3. Safety/security lock off devices and signage is installed according to enterprise policy and procedures
  4. Instructions are provided for flushing the system as required
Start-up procedures for a low volume irrigation system are developed according to system specifications and technical manuals

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Shut down sequence and isolation procedures are developed according to system specifications and technical manuals

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Safety/security lock off devices and signage is installed according to enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Instructions are provided for flushing the system as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out trouble shooting for faults and blockages

  1. Access to faulty components and blockages is arranged
  2. Faulty components are removed from the system, according to system specifications and technical manuals, and repaired or disposed of in an environmentally responsible way
  3. Replaceable components are selected from manufacturer catalogues and procured using enterprise procedures
  4. Replacement components are installed to meet system specifications according to technical manuals
Access to faulty components and blockages is arranged

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Faulty components are removed from the system, according to system specifications and technical manuals, and repaired or disposed of in an environmentally responsible way

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Replaceable components are selected from manufacturer catalogues and procured using enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Replacement components are installed to meet system specifications according to technical manuals

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure performance of a low volume irrigation system

  1. Variations in pressures are identified and recorded in accordance with enterprise policy and procedures
  2. Water flow rates are measured and recorded in accordance with enterprise policy and procedures
  3. Variations in water flow and distribution are identified and recorded in accordance with enterprise policy and procedures
  4. Pump performance parameters are measured as necessary and recorded in accordance with enterprise policy and procedures
  5. Variations in pump performance parameters are measured where relevant and recorded in accordance with enterprise policy and procedures
  6. Distribution and delivery systems are inspected and malfunctions in system are identified, fixed and actions recorded in accordance with enterprise policy and procedures
  7. Factors external to the system that may cause interference are identified and recorded in accordance with enterprise policy and procedures
Variations in pressures are identified and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Variations in water flow and distribution are identified and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pump performance parameters are measured as necessary and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Variations in pump performance parameters are measured where relevant and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Distribution and delivery systems are inspected and malfunctions in system are identified, fixed and actions recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Factors external to the system that may cause interference are identified and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Review system performance status

  1. System pressures and variations are recorded in accordance with enterprise policy and procedures
  2. System flow rates and variations are recorded in accordance with enterprise policy and procedures
  3. Distribution uniformity and mean application rates are calculated and recorded in accordance with enterprise policy and procedures
  4. Watering depth is determined and recorded in accordance with enterprise policy and procedures
  5. Calculations are made for energy use and water efficiency and compared to industry benchmarks
System pressures and variations are recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System flow rates and variations are recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Distribution uniformity and mean application rates are calculated and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Watering depth is determined and recorded in accordance with enterprise policy and procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are made for energy use and water efficiency and compared to industry benchmarks

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

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:

develop procedures for system operation

troubleshoot faults and blockages

measure performance of the system

benchmark energy and water efficiency of the system.

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:

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

carry out operational tests

measure, interpret and adjust flow rates and pressures

operate, maintain and repair irrigation systems

shut down and isolate components

replace components

access and prepare data records for both print-based and computer-based data

use computers for recording and reporting data

apply measuring and testing techniques

measure output and efficiency of an irrigation system

calculate pressure differentials, flow rates, crop yields, estimated water usage/actual water usage

use recorded information to review energy and water efficiency for an irrigation system

identify adverse environmental impacts of irrigation activities and appropriate remedial action

implement and follow relevant enterprise OHS and environmental policies and procedures.

Required knowledge includes:

Knowledge of:

irrigation schedules

application rates

irrigation times

dripper output

pressure variations and blockages

salinity levels and water quality

depth of irrigation

low volume irrigation technologies

component specifications

pump types used in low volume irrigation systems and their output and efficiency ratings

soil water retention testing techniques

measuring and monitoring procedures for factors contributing to irrigation system delivery

water authority standards and procedures

best practices for reducing environmental impacts of irrigation

OHS risk assessment.

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.

Low volume irrigation systems may include:

low volume irrigation systems include systems that operate under comparatively low volume and pressure including micro irrigation, pop-ups at less than 0.1 litres/second, and drippers.