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Evidence Guide: AHCIRG503 - Design irrigation, drainage and water treatment 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!

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AHCIRG503 - Design irrigation, drainage and water treatment systems

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

Determine design requirements

  1. Analyse water quantity and quality needs for a particular crop or situation so that an estimation can be made for sufficiency and timeliness
  2. Evaluate water transfer, recharge, reuse and harvesting systems
  3. Determine water collecting and storing processes that do not degrade the water quality
  4. Determine construction specifications that satisfy organisational and regulatory requirements
  5. Identify and protect environmentally sensitive areas as required by local, State and National legislation
  6. Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation, drainage, storage and treatment system
  7. Conduct a site investigation to assess type of soil, depth of soil, depth of ground water, water salinity, and structural or chemical impediments and to determine the most cost effective irrigation, drainage, treatment and storage systems
  8. Document design calculations and decisions
Analyse water quantity and quality needs for a particular crop or situation so that an estimation can be made for sufficiency and timeliness

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evaluate water transfer, recharge, reuse and harvesting systems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine water collecting and storing processes that do not degrade the water quality

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine construction specifications that satisfy organisational and regulatory requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and protect environmentally sensitive areas as required by local, State and National legislation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation, drainage, storage and treatment system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct a site investigation to assess type of soil, depth of soil, depth of ground water, water salinity, and structural or chemical impediments and to determine the most cost effective irrigation, drainage, treatment and storage systems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Document design calculations and decisions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Define pumping and power systems

  1. Identify pumps that can deliver water efficiently when needed, from the water storage at the flow and at the pressure required to operate the distribution system to the design specifications
  2. Select pump motor combinations that are efficient, reliable, functional, serviceable and flexible for the intended application
  3. Determine energy requirements and layout of electricity lines and check with local authorities
  4. Optimise the relationship between capital and operational costs including a comparison of energy sources
  5. Document performance indicators, design calculations and decisions
  6. Design construction specifications that define work required to make suitable pumping and power systems available
Identify pumps that can deliver water efficiently when needed, from the water storage at the flow and at the pressure required to operate the distribution system to the design specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select pump motor combinations that are efficient, reliable, functional, serviceable and flexible for the intended application

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine energy requirements and layout of electricity lines and check with local authorities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Optimise the relationship between capital and operational costs including a comparison of energy sources

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Document performance indicators, design calculations and decisions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design construction specifications that define work required to make suitable pumping and power systems available

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design an irrigation distribution system

  1. Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation
  2. Evaluate distribution systems and design with respect to a range of key variables
  3. Size pipes, valves and fittings according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life
  4. Calculate and document flows, water levels and pressures so that they are within the acceptable tolerances for optimum performance
  5. Include mechanisms for controlling and adjusting pressure and confirm isolation valves to direct water to areas with different irrigation schedules
  6. Design distribution and monitoring systems to meet industry recommendations and calculate distribution system flow and velocity
  7. Design construction plans and specifications that define the work required to achieve the required standards of uniformity and efficiency of water application
Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Evaluate distribution systems and design with respect to a range of key variables

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Size pipes, valves and fittings according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate and document flows, water levels and pressures so that they are within the acceptable tolerances for optimum performance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Include mechanisms for controlling and adjusting pressure and confirm isolation valves to direct water to areas with different irrigation schedules

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design distribution and monitoring systems to meet industry recommendations and calculate distribution system flow and velocity

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design construction plans and specifications that define the work required to achieve the required standards of uniformity and efficiency of water application

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design a drainage, storage and treatment system

  1. Document predictions of leaching fractions and salt movements and develop soil amelioration and drainage management plans
  2. Determine the need for leachate interception and dewatering system, and if required, prepare construction specifications for interception and collection, water treatment, disposal and reuse or recycle
  3. Design drainage, storage and treatment systems to meet industry recommendations and calculate distribution system flow and velocity
  4. Produce construction plans and specifications that define the work required to achieve standards of uniformity and efficiency of the drainage, storage and treatment systems
  5. Determine if drains and structures are capable of carrying the design water volumes and intensities
  6. Minimise damage from drainage, storage and treatment system issues
  7. Use hydrological calculations to predict volumes and rates of surface run-off
Document predictions of leaching fractions and salt movements and develop soil amelioration and drainage management plans

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine the need for leachate interception and dewatering system, and if required, prepare construction specifications for interception and collection, water treatment, disposal and reuse or recycle

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design drainage, storage and treatment systems to meet industry recommendations and calculate distribution system flow and velocity

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Produce construction plans and specifications that define the work required to achieve standards of uniformity and efficiency of the drainage, storage and treatment systems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine if drains and structures are capable of carrying the design water volumes and intensities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Minimise damage from drainage, storage and treatment system issues

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use hydrological calculations to predict volumes and rates of surface run-off

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine capital expense budget

  1. Document design calculations and decisions and communicate relevant information through plans, specifications and manuals
  2. Determine and document materials requirements from plans and specifications
  3. Estimate labour requirements based upon documented work schedule with reasonable allowance for variances in work schedules
  4. Base costing attributed to each component on quoted information from suppliers, or sound analysis of individual elements
  5. Confirm budget output by checking with an appropriately experienced and qualified person
Document design calculations and decisions and communicate relevant information through plans, specifications and manuals

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine and document materials requirements from plans and specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Estimate labour requirements based upon documented work schedule with reasonable allowance for variances in work schedules

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Base costing attributed to each component on quoted information from suppliers, or sound analysis of individual elements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm budget output by checking with an appropriately experienced and qualified person

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine operating expense budget

  1. Determine an operating expense budget that includes all expenses applicable to the completed irrigation, drainage, storage and treatment systems
Determine an operating expense budget that includes all expenses applicable to the completed irrigation, drainage, storage and treatment systems

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. Determine design requirements

1.1 Analyse water quantity and quality needs for a particular crop or situation so that an estimation can be made for sufficiency and timeliness

1.2 Evaluate water transfer, recharge, reuse and harvesting systems

1.3 Determine water collecting and storing processes that do not degrade the water quality

1.4 Determine construction specifications that satisfy organisational and regulatory requirements

1.5 Identify and protect environmentally sensitive areas as required by local, State and National legislation

1.6 Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation, drainage, storage and treatment system

1.7 Conduct a site investigation to assess type of soil, depth of soil, depth of ground water, water salinity, and structural or chemical impediments and to determine the most cost effective irrigation, drainage, treatment and storage systems

1.8 Document design calculations and decisions

2. Define pumping and power systems

2.1 Identify pumps that can deliver water efficiently when needed, from the water storage at the flow and at the pressure required to operate the distribution system to the design specifications

2.2 Select pump motor combinations that are efficient, reliable, functional, serviceable and flexible for the intended application

2.3 Determine energy requirements and layout of electricity lines and check with local authorities

2.4 Optimise the relationship between capital and operational costs including a comparison of energy sources

2.5 Document performance indicators, design calculations and decisions

2.6 Design construction specifications that define work required to make suitable pumping and power systems available

3. Design an irrigation distribution system

3.1 Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation

3.2 Evaluate distribution systems and design with respect to a range of key variables

3.3 Size pipes, valves and fittings according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life

3.4 Calculate and document flows, water levels and pressures so that they are within the acceptable tolerances for optimum performance

3.5 Include mechanisms for controlling and adjusting pressure and confirm isolation valves to direct water to areas with different irrigation schedules

3.6 Design distribution and monitoring systems to meet industry recommendations and calculate distribution system flow and velocity

3.7 Design construction plans and specifications that define the work required to achieve the required standards of uniformity and efficiency of water application

4. Design a drainage, storage and treatment system

4.1 Document predictions of leaching fractions and salt movements and develop soil amelioration and drainage management plans

4.2 Determine the need for leachate interception and dewatering system, and if required, prepare construction specifications for interception and collection, water treatment, disposal and reuse or recycle

4.3 Design drainage, storage and treatment systems to meet industry recommendations and calculate distribution system flow and velocity

4.4 Produce construction plans and specifications that define the work required to achieve standards of uniformity and efficiency of the drainage, storage and treatment systems

4.5 Determine if drains and structures are capable of carrying the design water volumes and intensities

4.6 Minimise damage from drainage, storage and treatment system issues

4.7 Use hydrological calculations to predict volumes and rates of surface run-off

5. Determine capital expense budget

5.1 Document design calculations and decisions and communicate relevant information through plans, specifications and manuals

5.2 Determine and document materials requirements from plans and specifications

5.3 Estimate labour requirements based upon documented work schedule with reasonable allowance for variances in work schedules

5.4 Base costing attributed to each component on quoted information from suppliers, or sound analysis of individual elements

5.5 Confirm budget output by checking with an appropriately experienced and qualified person

6. Determine operating expense budget

6.1 Determine an operating expense budget that includes all expenses applicable to the completed irrigation, drainage, storage and treatment systems

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. Determine design requirements

1.1 Analyse water quantity and quality needs for a particular crop or situation so that an estimation can be made for sufficiency and timeliness

1.2 Evaluate water transfer, recharge, reuse and harvesting systems

1.3 Determine water collecting and storing processes that do not degrade the water quality

1.4 Determine construction specifications that satisfy organisational and regulatory requirements

1.5 Identify and protect environmentally sensitive areas as required by local, State and National legislation

1.6 Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation, drainage, storage and treatment system

1.7 Conduct a site investigation to assess type of soil, depth of soil, depth of ground water, water salinity, and structural or chemical impediments and to determine the most cost effective irrigation, drainage, treatment and storage systems

1.8 Document design calculations and decisions

2. Define pumping and power systems

2.1 Identify pumps that can deliver water efficiently when needed, from the water storage at the flow and at the pressure required to operate the distribution system to the design specifications

2.2 Select pump motor combinations that are efficient, reliable, functional, serviceable and flexible for the intended application

2.3 Determine energy requirements and layout of electricity lines and check with local authorities

2.4 Optimise the relationship between capital and operational costs including a comparison of energy sources

2.5 Document performance indicators, design calculations and decisions

2.6 Design construction specifications that define work required to make suitable pumping and power systems available

3. Design an irrigation distribution system

3.1 Investigate regional geology and geography so that a prediction can be made on the sustainability of irrigation

3.2 Evaluate distribution systems and design with respect to a range of key variables

3.3 Size pipes, valves and fittings according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life

3.4 Calculate and document flows, water levels and pressures so that they are within the acceptable tolerances for optimum performance

3.5 Include mechanisms for controlling and adjusting pressure and confirm isolation valves to direct water to areas with different irrigation schedules

3.6 Design distribution and monitoring systems to meet industry recommendations and calculate distribution system flow and velocity

3.7 Design construction plans and specifications that define the work required to achieve the required standards of uniformity and efficiency of water application

4. Design a drainage, storage and treatment system

4.1 Document predictions of leaching fractions and salt movements and develop soil amelioration and drainage management plans

4.2 Determine the need for leachate interception and dewatering system, and if required, prepare construction specifications for interception and collection, water treatment, disposal and reuse or recycle

4.3 Design drainage, storage and treatment systems to meet industry recommendations and calculate distribution system flow and velocity

4.4 Produce construction plans and specifications that define the work required to achieve standards of uniformity and efficiency of the drainage, storage and treatment systems

4.5 Determine if drains and structures are capable of carrying the design water volumes and intensities

4.6 Minimise damage from drainage, storage and treatment system issues

4.7 Use hydrological calculations to predict volumes and rates of surface run-off

5. Determine capital expense budget

5.1 Document design calculations and decisions and communicate relevant information through plans, specifications and manuals

5.2 Determine and document materials requirements from plans and specifications

5.3 Estimate labour requirements based upon documented work schedule with reasonable allowance for variances in work schedules

5.4 Base costing attributed to each component on quoted information from suppliers, or sound analysis of individual elements

5.5 Confirm budget output by checking with an appropriately experienced and qualified person

6. Determine operating expense budget

6.1 Determine an operating expense budget that includes all expenses applicable to the completed irrigation, drainage, storage and treatment systems

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:

collect and analyse information

compare costings

develop budgets

develop system specifications

document outcomes

identify adverse environmental impacts of irrigation, drainage, water treatment and storage activities and take appropriate remedial action

identify system design requirements

The candidate must demonstrate knowledge of:

contractual development and obligations

control and monitoring systems

cost/benefit analysis

design processes

developments in irrigation, drainage, storage and treatment technology

environmental impacts of irrigation, drainage and water treatment

soil types and their impact on the systems

work health and safety and environmental protection legislation and regulations, codes of practice and enterprise policies and procedures

Range Statement