NTISthis.com

Evidence Guide: CPCPCM5004A - Design sewer systems

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

 

CPCPCM5004A - Design sewer systems

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

Prepare and implement sewer contracts.

  1. Sewer contracting procedures are implemented.
  2. Required qualifications, and roles and responsibilities of local authority personnel and contracted parties, are negotiated and documented.
Sewer contracting procedures are implemented.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Required qualifications, and roles and responsibilities of local authority personnel and contracted parties, are negotiated and documented.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Evaluate design parameters.

  1. Scope of work is established for sewer systems.
  2. Design requirements are determined from plans, specifications and client briefs.
  3. Cost-benefit analysis is conducted comparing a range of pipe materials and system designs.
  4. Statutory and regulatory requirements and Australian and New Zealand standards for the design of sewer systems are analysed and applied.
  5. Manufacturer requirements and trade and technical manuals are interpreted.
  6. Additional research, including a desktop study is conducted to outline design parameters.
  7. Safety procedures and regulations for trench safety are specified.
  8. Performance requirements are established.
Scope of work is established for sewer systems.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Design requirements are determined from plans, specifications and client briefs.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Cost-benefit analysis is conducted comparing a range of pipe materials and system designs.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Statutory and regulatory requirements and Australian and New Zealand standards for the design of sewer systems are analysed and applied.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Manufacturer requirements and trade and technical manuals are interpreted.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Additional research, including a desktop study is conducted to outline design parameters.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Safety procedures and regulations for trench safety are specified.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Performance requirements are established.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Plan and detail system components.

  1. Soils are tested and classified and characteristics of soil types are analysed.
  2. Trenching safety procedures are detailed and backfilling and compaction methods are specified.
  3. Layout of pipework systems and type and location of fittings and valves are planned.
  4. Pipelaying, dewatering and testing procedures for pipework of varying sizes are specified.
  5. Pipe size, pipe grade and ventilation requirement calculations are performed for a range of applications.
  6. Sewer connections, manholes, bedding material and concrete support are detailed.
  7. Pump station, pump and pump control requirements are sized and detailed.
  8. Approved materials, jointing methods and installation requirements for sewer systems are specified.
Soils are tested and classified and characteristics of soil types are analysed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Trenching safety procedures are detailed and backfilling and compaction methods are specified.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Layout of pipework systems and type and location of fittings and valves are planned.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Pipelaying, dewatering and testing procedures for pipework of varying sizes are specified.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Pipe size, pipe grade and ventilation requirement calculations are performed for a range of applications.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Sewer connections, manholes, bedding material and concrete support are detailed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Pump station, pump and pump control requirements are sized and detailed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Approved materials, jointing methods and installation requirements for sewer systems are specified.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Design and size systems.

  1. Sewer systems are designed for a range of applications.
  2. Sewer long sections are designed and detailed.
  3. Rising main systems are designed.
  4. Pump stations are designed.
  5. Sewer systems are designed and sized using computer software packages.
Sewer systems are designed for a range of applications.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Sewer long sections are designed and detailed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Rising main systems are designed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Pump stations are designed.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Sewer systems are designed and sized using computer software packages.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Prepare documentation.

  1. Plans are prepared for a range of sewer systems.
  2. Specification for a sewer system is prepared.
  3. Testing and commissioning schedule is prepared.
  4. Operation and maintenance manual is produced.
Plans are prepared for a range of sewer systems.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Specification for a sewer system is prepared.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Testing and commissioning schedule is prepared.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Operation and maintenance manual is produced.

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, 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.

It may be assessed on its own or as part of an integrated assessment activity involving preparation of designs for two sewer systems for different applications, including plans, specifications and all associated documentation.

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:

evaluating and documenting design parameters, including client, regulatory, manufacturer and Australian and New Zealand standard requirements for a range of sewer systems

specifying soil identification and trench safety procedures

planning and detailing sewer system components, including:

manholes

piping systems

pump stations

designing and sizing a range of sewer systems

designing and sizing a rising main

designing a sewer long section

preparing plans for a range of sewer systems to industry standards

preparing specifications for sewer systems

preparing testing and commissioning schedules

preparing operation and maintenance manuals.

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.

Required Skills and Knowledge

Required skills

Required skills for this unit are:

communication skills to:

communicate with others to ensure safe and effective work practices

confirm job specifications and client requirements

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

prepare written documentation, including plans, specifications and schedules

produce an operation and maintenance manual

read and interpret:

plans, specifications, drawings and design briefs

standards and manufacturer requirements and manuals

statutory and regulatory requirements

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

innovation skills to develop creative and responsive approaches

planning and organisational skills to:

research, collect, organise and understand information relating to the design of sewer systems

take initiative and make decisions

problem solving skills to analyse requirements, consider options and design an appropriate system

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:

common terminology and definitions used in the design of sewer systems for all classes of building

drafting principles

nature of materials used and effects of performance under various conditions

principles of technology in the design of sewer systems

requirements of state regulatory authorities, Australian standards and manufacturer specifications, including hazards identified in relation to devices and systems used

workplace safety requirements, including relevant statutory regulations, codes and standards.

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.

Sewer contracting procedures include:

acceptance of work

contract administration

documentation

initial survey

invitation to tender

preparation of plans.

Scope of work:

includes:

interpretation of plans and specifications

sizing and documenting layout of sewer systems for residential, commercial and industrial applications

may be for either new projects or existing sewer mains being renovated, extended, restored or maintained.

Design requirements include:

architectural specifications

builder specifications

owner requirements

specialist applications.

Cost-benefit analysis includes:

comparison of range of suitable materials and system choices available to enable cost-effective choices to be made without compromising the integrity of the project.

Statutory and regulatory requirements and Australian and New Zealand standards include:

Acts, regulations and local and state government policies, including group and strata titling

AS/NZS3500 National plumbing and drainage set: Parts 2.1 and 2.2

AS2200 Design charts for water supply and sewerage

Building Code of Australia.

Manufacturer requirements include:

material specifications

pump tables

sizing tables

technical and trade manuals.

Desktop study includes collecting and interpreting existing data for design purposes from:

architectural and building plans

council plans

developer plans

other documents, including:

forms

applications

sewer detail maps

other reports as available.

Safety procedures and regulations for trench safety:

include:

analysing factors that determine tunnelling

assessing and identifying types of soil requiring tunnel excavation and shoring procedures

defining methods of trench installation

defining procedures for trench rescue

specify safety procedures with reference to:

advisory standards

compliance standards

industry standards

Occupational Health and Safety Act

OHS regulations

other Acts, codes or regulations relating to trench protection.

Performance requirements are established using Australian and New Zealand standards and local authority plans and may include:

discharge requirements

durability

longevity

self-cleaning ability

sufficient capacity.

Trenching safety procedures include:

conditions affecting trench stability

condition of soils disturbed by previous excavations

effect of water on excavations

effects of moisture content on excavated trenches

traffic and vibrations

confined space safety requirements, e.g. for exhaust emissions

prevention of trench collapse

trench collapse procedures

trench inspection procedures

trench excavation methods used for different:

backfilling methods

bedding methods

depth

slope

support systems

types.

Layout of pipework systems include:

gravity systems

pumped and rising mains

layout, which should:

not unduly affect building integrity and aesthetic appeal

have principles of economy, serviceability, durability and fit for use applied.

Fittings and valves include:

access openings

bends

junctions.

Pipelaying may include:

cutting, handling and storage procedures for each pipe material

fittings used for sewerage work

jointing methods and procedures for each material

laying procedures for pipework of varying sizes

methods of dewatering trenches before and during pipelaying

methods of grading and maintaining pipe direction and reduced levels

methods of placing bedding materials, encasing pipes, backfilling and compacting

methods of testing sewer and branch sewer drains.

Pipe size, pipe grade and ventilation requirement calculations include:

determination of flow and loadings

gradient calculations

interpretation of design charts and tables

pipe sizing calculations

projected flows

stormwater infiltration reduced level calculations.

Manhole details include:

benching requirements

connections to and from

flow and gradient requirements

inspection chambers

lids

open and closed channel

sizing.

Pump station, pump and pump control requirements include:

automatic controls

capacity

chains

corrosion-resistant materials

detailing

high and low-level water controls and alarms

impeller sizing

inlet and outlet design requirements

installation and mounting requirements

ladder access

macerator requirements

pump selection

pump sizing

pump station sizing

space requirements

step irons

valve requirements

warning system.

Materials include:

cast iron

concrete

earthenware

high density polyethylene (HDPE)

unplasticised polyvinyl chloride (PVC-U).

Jointing methods include:

gluing

mechanical joints

rubber ring

solvent cement welding

threading.

Installation requirements include:

bedding

clipping

concrete support

installation details

jointing requirements

level of workmanship.

Rising main systems include:

approved pressure pipe and fittings

calculated rise and pump delivery requirements

pump sizing to meet calculated flow conditions.

Computer software packages include:

manufacturers' software

proprietary design software.

Plans:

may include:

axonometrics

cross-sections

details

elevations

isometrics

schematics

sections

may be produced to industry standards and in accordance with regulatory and manufacturer requirements using:

computer generation

Indian ink

pencil

pigment liner.

Specification may include:

bedding

clipping

concrete support

descriptions

details of specialised components

jointing

manholes

manufacturer requirements

materials

workmanship.

Testing may include:

air pressure test

hydrostatic test

quality assurance (QA) audit

visual and site inspection.

Commissioning schedule includes:

checking leaks

flushing.

Operation and maintenance manual may include:

check for blockages

leak detection

pump maintenance

water auditing

yearly inspection

yearly maintenance requirements.