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Evidence Guide: AHCWAT501A - Design 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!

From the Wiki University

 

AHCWAT501A - Design water treatment systems

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

Determine design requirements

  1. Quality of water to be treated and level of treatment is determined.
  2. Construction specifications define the work required to treat water for the enterprise in accordance with environmental and Occupational Health and Safety (OHS) requirements.
  3. Environmentally sensitive areas are identified and protected according to local, State and National legislation.
  4. Design calculations and decisions are documented to enterprise requirements.
Quality of water to be treated and level of treatment is determined.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construction specifications define the work required to treat water for the enterprise in accordance with environmental and Occupational Health and Safety (OHS) requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Environmentally sensitive areas are identified and protected according to local, State and National legislation.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design calculations and decisions are documented to enterprise requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Define pumping and power systems

  1. Pumps are selected to treat water efficiently and effectively as required, to enable supply at the flow and the pressure required to operate the distribution system.
  2. The pump motor combinations are efficient and the pumps are reliable, functional, serviceable and flexible for the intended application.
  3. Energy requirements are determined and layout of electricity lines are determined and checked with local authority.
  4. The relationship between capital and operational costs are optimised including a comparison of energy sources.
  5. Structures, valves and accessories are selected and integrated into a functional system that can be monitored and maintained according to enterprise guidelines.
  6. Performance indicators, design calculations and decisions are documented according to enterprise guidelines.
  7. Construction specifications define the work required to make a suitable pumping and power system available to enterprise.
  8. Power supply design specification is checked with power authorities
Pumps are selected to treat water efficiently and effectively as required, to enable supply at the flow and the pressure required to operate the distribution system.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The pump motor combinations are efficient and the pumps are reliable, functional, serviceable and flexible for the intended application.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Energy requirements are determined and layout of electricity lines are determined and checked with local authority.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The relationship between capital and operational costs are optimised including a comparison of energy sources.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Structures, valves and accessories are selected and integrated into a functional system that can be monitored and maintained according to enterprise guidelines.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Performance indicators, design calculations and decisions are documented according to enterprise guidelines.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construction specifications define the work required to make a suitable pumping and power system available to enterprise.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Power supply design specification is checked with power authorities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design an water treatment system

  1. Treatment systems are evaluated and designed with respect to a range of key variables.
  2. Pipes, valves and fittings are sized according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life.
  3. Flows, water levels and pressures are calculated and documented to be within the acceptable tolerances for optimum performance.
  4. Flows, water levels and pressures are achievable by the pumps operating at optimum efficiency and according to enterprise standards.
  5. Mechanisms for controlling and adjusting pressure are included.
Treatment systems are evaluated and designed with respect to a range of key variables.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pipes, valves and fittings are sized according to design system specifications so that capital cost is balanced against operation costs over the anticipated system life.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Flows, water levels and pressures are calculated and documented to be within the acceptable tolerances for optimum performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Flows, water levels and pressures are achievable by the pumps operating at optimum efficiency and according to enterprise standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mechanisms for controlling and adjusting pressure are included.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine capital expense budget

  1. Design calculations and decisions are documented and relevant information is communicated clearly through plans, specifications and manuals.
  2. Design output is checked by a competent designer against enterprise objectives.
  3. Materials requirements are determined and documented from plans and specifications.
  4. Labour requirements are estimated based upon documented work schedule, with reasonable allowance for variances in work schedules.
  5. Costing attributed to each component is based upon quoted information from suppliers, or sound analysis of individual elements.
Design calculations and decisions are documented and relevant information is communicated clearly through plans, specifications and manuals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design output is checked by a competent designer against enterprise objectives.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Materials requirements are determined and documented from plans and specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Labour requirements are estimated based upon documented work schedule, with reasonable allowance for variances in work schedules.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Costing attributed to each component is based upon quoted information from suppliers, or sound analysis of individual elements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine operating expense budget

  1. Operating expense budget indicates all expenses applicable to the completed irrigation system.
Operating expense budget indicates all expenses applicable to the completed irrigation system.

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:

identify design requirements

determine specifications for suitable pumping and power systems

design treatment systems

determine capital and operating expense budgets for the system designed.

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

collect and analyse information

identify adverse environmental impacts of water treatment activities and appropriate remedial action

identify design requirements

develop specifications

develop and implement relevant enterprise OHS and environmental procedures

use literacy skills to fulfil job roles as required by the organisation. The level of skill may range from reading and understanding documentation to completion of written reports

use oral communication skills/language competence to fulfil the job role as specified by the organisation including questioning, active listening, asking for clarification, negotiating solutions and responding to a range of views

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

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

Required knowledge

design processes

developments in water treatment technology

automatic control and monitoring systems

waste management and environmental issues

budgeting, contractual development and obligations

environmental protection agency regulations

environmental impacts of water treatment

cost/benefit analysis

enterprise policies and procedures.

Range Statement

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

Reuse systems may include:

disinfestation and filtering equipment

Drainage systems may include:

surface drains

culverts

mole drains

sand slit

sub-surface traps

pit and trap systems

dune and swale systems

reed beds

water-recycling pumps and baffles.