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Evidence Guide: NWPGEN007 - Sample and test drinking water

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

 

NWPGEN007 - Sample and test drinking water

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

Prepare for water quality sampling and testing

  1. Receive instructions for taking samples and conducting basic water quality tests.
  2. Confirm and record samples and tests to comply with requirements.
  3. Select, check and prepare equipment and resources.
  4. Select and apply relevant sample preservation methods.
  5. Select, fit and use personal protective equipment.
Receive instructions for taking samples and conducting basic water quality tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm and record samples and tests to comply with requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, check and prepare equipment and resources.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and apply relevant sample preservation methods.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, fit and use personal protective equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct water quality sampling and testing

  1. Adopt hygienic work practices.
  2. Collect samples ensuring that types, locations and times comply with requirements.
  3. Prepare samples for off-site laboratory testing according to requirements.
  4. Maintain integrity of samples during sampling andon-site testing.
  5. Conduct basic on-site water quality tests.
  6. Assess and report abnormal characteristics and apply incident management principles.
  7. Record samples and results of on-site analysis.
  8. Limit hazards and contamination to self, work area and environment.
Adopt hygienic work practices.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect samples ensuring that types, locations and times comply with requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare samples for off-site laboratory testing according to requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain integrity of samples during sampling andon-site testing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct basic on-site water quality tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess and report abnormal characteristics and apply incident management principles.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record samples and results of on-site analysis.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Limit hazards and contamination to self, work area and environment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Finalise work

  1. Apply chain of custody principles.
  2. Report observations or measurements requiring further action.
  3. Dispose of samples and clean and store test equipment.
  4. Clear and restore work area.
Apply chain of custody principles.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report observations or measurements requiring further action.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of samples and clean and store test equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clear and restore work area.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare for water quality sampling and testing

  1. Receive instructions for taking samples and conducting basic water quality tests.
  2. Confirm and record samples and tests to comply with requirements.
  3. Select, check and prepare equipment and resources.
  4. Select and apply relevant sample preservation methods.
  5. Select, fit and use personal protective equipment.
Receive instructions for taking samples and conducting basic water quality tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm and record samples and tests to comply with requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, check and prepare equipment and resources.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and apply relevant sample preservation methods.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, fit and use personal protective equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct water quality sampling and testing

  1. Adopt hygienic work practices.
  2. Collect samples ensuring that types, locations and times comply with requirements.
  3. Prepare samples for off-site laboratory testing according to requirements.
  4. Maintain integrity of samples during sampling andon-site testing.
  5. Conduct basic on-site water quality tests.
  6. Assess and report abnormal characteristics and apply incident management principles.
  7. Record samples and results of on-site analysis.
  8. Limit hazards and contamination to self, work area and environment.
Adopt hygienic work practices.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect samples ensuring that types, locations and times comply with requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare samples for off-site laboratory testing according to requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain integrity of samples during sampling andon-site testing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct basic on-site water quality tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess and report abnormal characteristics and apply incident management principles.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record samples and results of on-site analysis.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Limit hazards and contamination to self, work area and environment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Finalise work

  1. Apply chain of custody principles.
  2. Report observations or measurements requiring further action.
  3. Dispose of samples and clean and store test equipment.
  4. Clear and restore work area.
Apply chain of custody principles.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report observations or measurements requiring further action.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of samples and clean and store test equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clear and restore work area.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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. Prepare for water quality sampling and testing

1.1 Receive instructions for taking samples and conducting basic water quality tests.

1.2 Confirm and record samples and tests to comply with requirements.

1.3 Select, check and prepare equipment and resources.

1.4 Select and apply relevant sample preservation methods.

1.5 Select, fit and use personal protective equipment.

2. Conduct water quality sampling and testing

2.1 Adopt hygienic work practices.

2.2 Collect samples ensuring that types, locations and times comply with requirements.

2.3 Prepare samples for off-site laboratory testing according to requirements.

2.4 Maintain integrity of samples during sampling andon-site testing.

2.5 Conduct basic on-site water quality tests.

2.6 Assess and report abnormal characteristics and apply incident management principles.

2.7 Record samples and results of on-site analysis.

2.8 Limit hazards and contamination to self, work area and environment.

3. Finalise work

3.1 Apply chain of custody principles.

3.2 Report observations or measurements requiring further action.

3.3 Dispose of samples and clean and store test equipment.

3.4 Clear and restore work area.

Required Skills and Knowledge

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. Prepare for water quality sampling and testing

1.1 Receive instructions for taking samples and conducting basic water quality tests.

1.2 Confirm and record samples and tests to comply with requirements.

1.3 Select, check and prepare equipment and resources.

1.4 Select and apply relevant sample preservation methods.

1.5 Select, fit and use personal protective equipment.

2. Conduct water quality sampling and testing

2.1 Adopt hygienic work practices.

2.2 Collect samples ensuring that types, locations and times comply with requirements.

2.3 Prepare samples for off-site laboratory testing according to requirements.

2.4 Maintain integrity of samples during sampling andon-site testing.

2.5 Conduct basic on-site water quality tests.

2.6 Assess and report abnormal characteristics and apply incident management principles.

2.7 Record samples and results of on-site analysis.

2.8 Limit hazards and contamination to self, work area and environment.

3. Finalise work

3.1 Apply chain of custody principles.

3.2 Report observations or measurements requiring further action.

3.3 Dispose of samples and clean and store test equipment.

3.4 Clear and restore work area.

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. To be deemed competent the candidate must be assessed in a minimum of three of the types of tests, one of the types of conditions and one of the areas of sampling listed in the Range of Conditions. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

calibrating testing equipment

interpreting sampling and testing requirements

preparing, checking and using equipment

assessing risks

preparing, collecting, labelling and preserving water samples

disposing of waste and spent samples

planning and preparing for water sampling tasks

recording all required information

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.

chain of custody

range and purpose of basic water quality testing and sampling

relevant policies and procedures

blind sampling

abnormal characteristics of water samples

atypical test result data

relevant work-related calculations

maintenance and storage of reagents

requirements for maintaining sample integrity

relevant legislative and organisational requirements

water sample preparation

work planning processes

effects of weather and conditions on work

hazards associated with collection of water samples

incident management principles

Range Statement

Types of sampling conditions includes:

physical

microbial

chemical

radiological

On-site tests include:

turbidity

pH

dissolved oxygen

electrical conductivity

chlorine

temperature

colour

Types of sampling areas include:

surface

ground

drinking

seawater