Assessor Resource

NWPGEN013
Apply principles of chemistry to water systems and processes

Assessment tool

Version 1.0
Issue Date: April 2024


This unit describes the skills required to identify and apply to water systems and processes the principles of chemistry, and to select the relevant and effective chemicals required for specific processes.

This unit applies to a range of operational roles within the water industry and is fundamental to all quality monitoring and treatment processes.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.

Those undertaking this unit would work independently while performing complex tasks within a range of contexts.

No licensing, legislative or certification requirements apply to unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Apply chemistry to water processes

1.1 Apply relevant chemistry principles to improve performance of specific water processes.

1.2 Identify and describe chemical reactions specific to water processes.

2. Identify the use of chemicals in water industry processes

2.1 Assess the functions of the range of industry chemicals in relation to their use in water processes.

2.2 Identify and describe factors influencing the effectiveness of chemical use.

2.3 Store, handle and prepare chemicals.

3. Select chemicals for specific water industry processes

3.1 Identify the range of chemicals available for specific water industry processes.

3.2 Evaluate the factors affecting the selection of chemicals for particular water industry applications.

3.3 Select suitable chemicals and calculate correct usage for a range of specific water industry processes.

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

interpreting a range of complex and technical documents including relevant:

regulatory, legislative, licensing and organisational requirements

codes and standards

specifications

organisational policies

analysing and evaluating reports and reference materials

performing various calculations to provide data for the analysis and development of options and solutions

identifying risks and hazards

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

standards and workplace policies and procedures determining the use and management of chemical processes

chemical concepts relevant to water industry processes

chemical reactions

range and characteristics of chemicals used in various water industry processes

functions of various chemicals in water industry processes

factors influencing the effectiveness of chemicals

factors affecting the selection of chemicals

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Apply chemistry to water processes

1.1 Apply relevant chemistry principles to improve performance of specific water processes.

1.2 Identify and describe chemical reactions specific to water processes.

2. Identify the use of chemicals in water industry processes

2.1 Assess the functions of the range of industry chemicals in relation to their use in water processes.

2.2 Identify and describe factors influencing the effectiveness of chemical use.

2.3 Store, handle and prepare chemicals.

3. Select chemicals for specific water industry processes

3.1 Identify the range of chemicals available for specific water industry processes.

3.2 Evaluate the factors affecting the selection of chemicals for particular water industry applications.

3.3 Select suitable chemicals and calculate correct usage for a range of specific water industry processes.

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

interpreting a range of complex and technical documents including relevant:

regulatory, legislative, licensing and organisational requirements

codes and standards

specifications

organisational policies

analysing and evaluating reports and reference materials

performing various calculations to provide data for the analysis and development of options and solutions

identifying risks and hazards

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

standards and workplace policies and procedures determining the use and management of chemical processes

chemical concepts relevant to water industry processes

chemical reactions

range and characteristics of chemicals used in various water industry processes

functions of various chemicals in water industry processes

factors influencing the effectiveness of chemicals

factors affecting the selection of chemicals

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Apply relevant chemistry principles to improve performance of specific water processes. 
Identify and describe chemical reactions specific to water processes. 
Assess the functions of the range of industry chemicals in relation to their use in water processes. 
Identify and describe factors influencing the effectiveness of chemical use. 
Store, handle and prepare chemicals. 
Identify the range of chemicals available for specific water industry processes. 
Evaluate the factors affecting the selection of chemicals for particular water industry applications. 
Select suitable chemicals and calculate correct usage for a range of specific water industry processes. 
Apply relevant chemistry principles to improve performance of specific water processes. 
Identify and describe chemical reactions specific to water processes. 
Assess the functions of the range of industry chemicals in relation to their use in water processes. 
Identify and describe factors influencing the effectiveness of chemical use. 
Store, handle and prepare chemicals. 
Identify the range of chemicals available for specific water industry processes. 
Evaluate the factors affecting the selection of chemicals for particular water industry applications. 
Select suitable chemicals and calculate correct usage for a range of specific water industry processes. 

Forms

Assessment Cover Sheet

NWPGEN013 - Apply principles of chemistry to water systems and processes
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

NWPGEN013 - Apply principles of chemistry to water systems and processes

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: