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Evidence Guide: NWP218B - Perform and record sampling

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

 

NWP218B - Perform and record sampling

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

Prepare for water quality sampling.

  1. Confirm required samples, procedures for sampling and sampling locations according to organisational requirements.
  2. Select sampling equipment according to specified samples required and appropriate sample preservation methods.
  3. Identify, check and prepare materials, equipment and resources required to satisfy job plan according to organisational requirements.
  4. Plan sampling work activities to comply with sampling plan and organisational requirements.
Confirm required samples, procedures for sampling and sampling locations according to organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select sampling equipment according to specified samples required and appropriate sample preservation methods.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify, check and prepare materials, equipment and resources required to satisfy job plan according to organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plan sampling work activities to comply with sampling plan and organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct water quality sampling.

  1. Collect samples ensuring that sample types, sampling locations and sampling times comply with sampling plan.
  2. Maintain integrity of samples during sampling and label sample containers according to organisational requirements.
  3. Follow approved safety procedures to limit hazards and contamination to self, work area and environment.
Collect samples ensuring that sample types, sampling locations and sampling times comply with sampling plan.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain integrity of samples during sampling and label sample containers according to organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Follow approved safety procedures to limit hazards and contamination to self, work area and environment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record sampling data.

  1. Record required information according to legislative and organisational requirements.
  2. Report observations or measurements outside organisational guidelines or specifications for further action.
Record required information according to legislative and organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report observations or measurements outside organisational guidelines or specifications for further action.

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, the range statement and the Assessment Guidelines for the Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The candidate should demonstrate the ability to perform basic water sampling by:

planning and preparing for water sampling tasks

collecting samples according to sampling plan

maintaining integrity of water samples

recording all required information

Context of and specific resources for assessment

Access to the workplace and resources including:

documentation that should normally be available in a water industry organisation

relevant codes, standards and government regulations

Where applicable, physical resources should include equipment modified for people with disabilities.

Access must be provided to appropriate learning and assessment support when required.

Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice

a decision of competence should only be made when the assessor has complete confidence in the person's competence over time and in various contexts

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence

where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time

assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit

In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the operator and cultural issues that may affect responses to the questions, and will reflect the requirements of the competency and the work being performed.

Required Skills and Knowledge

This describes the essential skills and knowledge and their level, required for this unit.

Required skills:

prepare, collect, label and preserve water samples

dispose of waste and spent samples correctly

produce reports and logs

plan work activities

work effectively as part of a team

perform task-related calculations

identify and obtain resources

follow plans and instructions

apply procedures and standards

communicate work requirements

use literacy skills in regard to verbal and written communication in the workplace

use personal protective equipment

Required knowledge:

types and purposes of water samples

procedures and techniques for water sampling

water sample preparation, including:

prevention of contamination

volume of sample

appropriate containers

preservation

location selection

location maintenance

equipment

transportation

documentation procedures for water samples

disposal procedures for waste and excess water samples

task-related calculations

legislative and organisational policies, procedures and standards

communication systems

work planning processes

effects of weather and conditions on work

hazards associated with collection of water samples

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. Add any 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.

Samples may include:

grab, composite or flow-weighted composite samples for:

microbiological testing

testing for chemical and physical characteristics

Organisational requirements may include:

standard operating procedures

Australian standards, for example AS/NZS 5667 Water quality - sampling

state Environment Protection Authority sampling guidelines

legislative requirements

OHS

Sampling equipment may include:

buckets or wide-mouthed containers

depth samplers

sample dippers

sterile sample containers:

plastic

glass

test-specific, such as acid washed

weighted sample bottles

dip tubes

composite and discrete automatic samplers

Sample preservation methods may include:

refrigeration

freezing

chemical addition, such as acidification

shielding from direct sunlight

filtration

Planning sampling work activities may include:

interpretation of instructions and directions

timelines

interaction and communication with team members and individuals

customer service requirements

Sampling locations may include:

raw water supply, including:

surface water

groundwater

water distribution and treatment systems

wastewater collection and treatment systems

Records may include:

sample records, field detail sheets or chain of custody forms, including information such as:

time sample was taken

details of person collecting sample

sample point

volume of sample

data gathered at time of collection

pre-treatment

preservation

instructions to transporters