CPCPDR3011A
Plan layout of a residential sanitary drainage system

This unit of competency specifies the outcomes required to plan the layout of sanitary drainage systems for residential buildings.

Application

This unit of competency supports development of planning skills for sanitary systems.

Site location for application of the design will be domestic, and may be a new work site or an existing structure being renovated, extended, restored or maintained.



Elements and Performance Criteria

ELEMENT

PERFORMANCE CRITERIA

1. Prepare for work.

1.1. Information, plans and specifications are obtained.

1.2. Safety (OHS) requirements associated with planning the layout of sanitary drainage systems, and workplace environmental requirements, are adhered to throughout the work.

1.3. Quality assurance requirements are identified and adhered to in accordance with workplace requirements.

1.4. Tasks are planned and sequenced in conjunction with others involved in or affected by the work.

1.5. Tools and equipment, including personal protective equipment, are selected and checked for serviceability.

1.6. Work area is prepared to support efficient planning of sanitary drainage systems' layouts.

2. Plan system layout.

2.1. Site inspection is undertaken to determine job requirements.

2.2. Quantity, location and type of fixtures are determined from design drawings, plans and elevations.

2.3. Layout of sanitary drainage system is planned in accordance with plans and relevant Australian standards.

2.4. Sustainability principles and concepts are applied to the plan.

2.5. Materials and fixtures required are determined from the proposed design.

2.6. Plans are recorded in accordance with workplace requirements.

3. Clean up.

3.1. Work area is cleared and materials disposed of, reused or recycled according to legislation, regulations, codes of practice and job specification.

3.2. Tools and equipment are cleaned, checked, maintained and stored in accordance with manufacturer recommendations and workplace procedures.

3.3. Information is accessed and documentation completed in accordance with workplace requirements.

Required Skills

Required skills

Required skills for this unit are:

communication skills to:

confirm job specifications and client requirements

communicate with others to ensure safe and effective work practices

complete workplace documentation

enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand

read and interpret:

drawings and specifications

documentation from a variety of sources

use language and concepts appropriate to cultural differences

use and interpret non-verbal communication, such as hand signals

identifying and accurately reporting to appropriate personnel any faults in tools, equipment or materials

interpreting a design to plan the layout of a sanitary drainage system for residential buildings, connecting to the authority's sewer or on-site disposal system

numeracy skills to apply measurements and calculations

organisational skills, including the ability to plan and set out work

teamwork skills to work with others to action tasks and relate to people from a range of cultural and ethnic backgrounds and with varying physical and mental abilities

technological skills to:

access and understand site-specific instructions in a variety of media

use mobile communication technology.

Required knowledge

Required knowledge for this unit is:

application of various sanitary fixtures and appliances

characteristics and application of different pipe systems, including their fittings and fixture supports and fixing and joining techniques

design concepts and performance measures for sanitary drainage installations

job safety analysis (JSA) and safe work method statements (SWMS)

principles of drainage design

process of planning the layout of sanitary drainage systems

properties and characteristics of sewage, including temperature implications and discharges

pumped discharges

relevant statutory and authority requirements related to sanitary drainage systems

SI system of measurements

workplace and equipment safety requirements.

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.

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

A person who demonstrates competency in this unit must be able to provide evidence of:

locating, interpreting and applying relevant information, Australian standards and specifications to planning the layout of a sanitary drainage system for a residential type building

applying safety requirements throughout the work sequence, including electrical requirements and the use of personal protective clothing and equipment

as a minimum the ability to, given the plans and specifications, plan the layout of a sanitary drainage system for a two-storey building requiring connection of five points, including a stack from the second floor to an approved point of discharge, or on-site disposal system, ensuring:

application of sustainability principles and concepts when planning the layout of a residential draining system

correct identification of details of proposed layout

correct selection and use of appropriate processes, tools and equipment

completing all work to specification

compliance with regulations, relevant Australian standards and organisational quality procedures and processes

communicating and working effectively and safely with others.

Context of and specific resources for assessment

This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.

Assessment of essential underpinning knowledge will usually be conducted in an off-site context.

Assessment is to comply with relevant regulatory or Australian standards' requirements.

Resource implications for assessment include:

an induction procedure and requirement

realistic tasks or simulated tasks covering the minimum task requirements

relevant specifications and work instructions

tools and equipment appropriate to applying safe work practices

support materials appropriate to activity

workplace instructions relating to safe working practices and addressing hazards and emergencies

material safety data sheets

research resources, including industry related systems information.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Method of assessment

Assessment methods must:

satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package

include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

reinforce the integration of employability skills with workplace tasks and job roles

confirm that competency is verified and able to be transferred to other circumstances and environments.

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, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge

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

Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.

Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.


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. 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) may also be included.

Information may include:

charts and hand drawings

diagrams or sketches and graphics

instructions issued by authorised organisational or external personnel

job drawings

manufacturer specifications and instructions

maps

material safety data sheets (MSDS)

memos

organisation work specifications and requirements

regulatory and legislative requirements, particularly those pertaining to:

building codes

OHS and environmental requirements

plumbing regulations

relevant Australian standards

safe work procedures relating to the design of sanitary drainage systems

signage

verbal, written and graphical instructions

work bulletins

work schedules, plans and specifications.

Safety (OHS) is to be in accordance with commonwealth, state and territory legislation and regulations and may include:

handling of materials

hazard control

protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including recognising and preventing hazards associated with:

dangerous materials and hazardous substances

electricity

services

surrounding structure and facilities

trip hazards

work site visitors and the public

working in proximity to others

use of firefighting equipment

use of first aid equipment

use of tools and equipment

workplace environment and safety.

Environmental requirements may include:

clean-up protection

waste management.

Quality assurance requirements may include:

Environment Protection Authority (EPA)

environment policy

internal company quality assurance policy and risk management strategy

International Standards Organisation

site safety plan

workplace operations and procedures.

Tools and equipment may include:

approved testing equipment

chain blocks

forklifts

hand and power tools

hand excavation tools

hand trolleys

hoists and jacks

levelling equipment

lifting and load shifting equipment

measuring equipment

mechanical excavation equipment

rollers

trench shoring equipment.

Sustainability principles and concepts:

cover the social, economic and environmental use of resources to meet current and future needs

may include:

appropriate component selection that has minimal environmental impact

efficient energy and water use

efficient use and recycling of material

correct handling of hazardous materials

disposal of waste material to ensure minimal environmental impact.

Materials may include:

drawing instruments

measuring equipment and plans, including building plans

sanitary plans and drainage plans.

Fixtures may include:

all approved residential fixtures in AS/NZS3500 National plumbing and drainage set.


Sectors

Unit sector

Plumbing and services


Co-Requisites

Nil


Employability Skills

This unit contains employability skills.


Licensing Information

Not Applicable