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Evidence Guide: NWP254B - Repair or insert water distribution assets

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

 

NWP254B - Repair or insert water distribution assets

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

Plan and prepare for repairs.

  1. Determine work requirements and location for repair of assets from specifications and instructions.
  2. Select and check equipment and tools required to meet safety requirements of task and site.
  3. Select, fit and use personal protective equipment.
  4. Advise customers of supply interruption.
  5. Isolate the work area.
Determine work requirements and location for repair of assets from specifications and instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and check equipment and tools required to meet safety requirements of task and site.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, fit and use personal protective equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Advise customers of supply interruption.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Isolate the work area.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair or insert assets.

  1. Repair or replace leakages and damaged pipes and fittings according to specifications.
  2. Carry out internal and external protection of assets to meet specifications.
  3. Pressurise and check repaired distribution assets to ensure that joints are sound.
Repair or replace leakages and damaged pipes and fittings according to specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out internal and external protection of assets to meet specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pressurise and check repaired distribution assets to ensure that joints are sound.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain system hygiene and water quality.

  1. Store pipes and fittings clear of potential pollutants or damaging substances and remove debris or filling from pipes before use.
  2. Sterilise fittings and repair materials, disinfect and take samples.
  3. Keep trench water levels below pipe level.
Store pipes and fittings clear of potential pollutants or damaging substances and remove debris or filling from pipes before use.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Sterilise fittings and repair materials, disinfect and take samples.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Keep trench water levels below pipe level.

Completed
Date:

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Review, record and report work.

  1. Check, maintain and store equipment, tools and materials according to manufacturer guidelines and organisational procedures.
  2. Complete workplace records and process as required.
  3. Restore work site to meet environmental and organisational requirements.
  4. Determine and report apparent cause of asset failure by visual examination of removed components.
Check, maintain and store equipment, tools and materials according to manufacturer guidelines and organisational procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete workplace records and process as required.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Restore work site to meet environmental and organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine and report apparent cause of asset failure by visual examination of removed components.

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 conduct repair work on water distribution assets by:

planning work and preparing work site

performing repair tasks according to manufacturer specifications and organisational requirements

ensuring system hygiene and water quality

checking work, restoring work site, storing equipment and completing documentation.

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:

identify and respond to operational problems

use safety equipment and personal protective equipment

use tools and machinery

follow plans, charts, specifications and instructions

perform work-related calculations

apply policies and procedures

identify hazards

communicate with employees and customers

work effectively as part of a team

use communication systems

give and receive instructions

identify system faults

install and repair the appropriate systems' fittings and assets

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

apply appropriate surface protection and clean system and structures.

Required knowledge:

system hydraulics basics

system layout

environmental aspects of maintenance

lock-out procedures for mechanical and electrical installations

relevant utilities and service bodies

communication systems

work-related calculations

hazardous materials handling

landscape and ground structure of work area

risk factors and potential hazards of maintenance processes

equipment operation, capacity and limitations

effects of weather and conditions on construction site or plant

control systems

pipes and fittings

disinfection of systems and chemical usage.

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.

Assets may include:

distribution system pipe work, including:

polyvinyl chloride (PVC)

polyethylene

mild steel cement lined

ductile iron cement lined

cast iron cement lined

asbestos cement

copper

glass reinforced piping

structures, including:

meter pits

maintenance holes

valve chambers

regulators

erosion barriers

head walls

thrust blocks

controlling equipment.

Equipment used may include:

hand and power tools

lifting and winching equipment

mechanical excavation equipment

pneumatic and motorised equipment, including:

compressors

pneumatic spades and attachments

motorised cutting equipment

on- and off-road vehicles

portable pumps

leak clamps

communication equipment

breathing apparatus

gas detection equipment

rescue equipment

appropriate personal protective equipment.

Fittings may include:

hydrants

sluices

valves

scours

main taps

jointing and repair systems for pipe types, e.g. gibault

tapping bands

tension bands

solvent cement joints

compression ring joints

bolted flanges

electrofusion

butt welding

cathodic protection.

Sterilising fittings may include:

air scouring

sterilising pipeline and repair pieces

sampling and testing

scrubbing

flushing.