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Elements and Performance Criteria

  1. Establish site for water reticulation system's maintenance or construction
  2. Carry out reticulated water service maintenance
  3. Excavate trenches
  4. Carry out construction of water reticulation service
  5. Complete necessary documentation

Required Skills

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

Required Skills

reading and interpreting plans and specifications and plant and equipment capabilities

measuring and calculating quantities

measurement and methods of setting out

tradespecific skills

Required Knowledge

OHS requirements

construction and maintenance practices related to water distribution systems

pipe materials and components technology

work scheduling inspection testing and monitoring

work site traffic management

monitoring and testing methods and procedures

state and local environmental requirements

Evidence Required

Overview of assessment requirements

A person who demonstrates competency in this unit will be able to perform the outcomes described in the Elements to the required performance level detailed in the Performance Criteria The knowledge and skill requirements described in the Range Statement must also be demonstrated For example knowledge of the legislative framework and safe work practices that underpin the performance of the unit must be demonstrated

Critical aspects of evidence to be considered

Appropriate materials pipes and components construction methods and processes are used for the efficient maintenance and construction of water reticulation and sewerage collection systems

Plans and specifications are adhered to

Safety on work sites is ensured

Australian standards codes of practice and advisory standards are met

Context of assessment

Appropriate materials pipes and components construction methods and processes are used for the efficient maintenance and construction of water reticulation and sewerage collection systems

Plans and specifications are adhered to

Safety on work sites is ensured

Australian standards codes of practice and advisory standards are met

Relationship to other unitsprerequisite or corequisite units

To enable holistic assessment this unit may be assessed with other units that form part of the job role

Method of assessment

The following assessment methods are suggested

observation of the learner performing a range of workplace tasks over sufficient time to demonstrate handling of a range of contingencies

written andor oral questioning to assess knowledge and understanding

completion of workplace documentation

thirdparty reports from experienced practitioners

completion of selfpaced learning materials including personal reflection and feedback from trainer coach or supervisor

Evidence required for demonstration of consistent performance

Evidence will need to be gathered over time across a range of variables

Resource implications

In accordance with a range of variable requirements


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 in the Performance Criteria is detailed below.

Plant may include:

excavators

backhoes

trench excavators

trench compactors

trucks

loaders

cranes

Trench support systems may include:

timber struts

wales and runners

steel trench sheets

box shields

poling boards

trucking frames

Materials may include:

concrete

steel

clay

sand

rock

crushed rock

geofabric cloth

plastics

Types of pipes may include:

steel pipes

lined steel pipes

cast and ductile iron pipes

reinforced and unreinforced concrete pipes

polyvinyl chloride (PVC) pipes

fibre reinforced concrete (FRC) pipes

copper pipes

Types of pipe joints may include:

cast iron: flanged, flexible, sleeve, bell and spigot joints

steel: butt and spigot and socket welded joints, and flanged joints

Viking Johnson coupling

PVC: insert fitting and flared compression rubber gasket joints

FRC: gibault, machined and rubber joints

concrete pipes: socket mortar, socket mastic and socket rubber ring

Types of valves, meters and components may include:

stop valves, non-return valves, flow control valves, pressure control valves, energy dissipaters and air release valves

venturi and orifice meters, inferential propeller blade or vane meters, and waste and leak detection meters

Disinfectant methods may include:

continuous feed

slug

foam swabs

pigs

flushing

Pipe tests may include:

pressure

leakage

water quality

compaction

confined spaces

Structures may include:

pump stations

valve chambers

inspection chambers

thrust blocks

pipe supports