Course Title: Design and size domestic treatment plant disposal systems

Part B: Course Detail

Teaching Period: Term2 2014

Course Code: BUIL6313C

Course Title: Design and size domestic treatment plant disposal systems

School: 130T Engineering (TAFE)

Campus: City Campus

Program: C4338 - Certificate IV in Plumbing and Services

Course Contact : Program Manager

Course Contact Phone: +61 3 99254468

Course Contact

Name and Contact Details of All Other Relevant Staff

Program Manager  -   Warren James  

Tel: 03 9925 4632


Nominal Hours: 35

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Pre-requisites and Co-requisites


Course Description

This unit of competency specifies the outcomes required to design, size and document the layout of domestic treatment plant disposal systems.
It covers preparation for the planning, identification and confirmation of system specifications and requirements, and the planning of the system layout and work finalisation processes, including records and documentation.

National Codes, Titles, Elements and Performance Criteria

National Element Code & Title:

CPCPDR4013B Design and size domestic treatment plant disposal systems


1 Prepare for planning.

2 Identify system requirements.

3 Design system layout.

4 Restore work area.

Performance Criteria:

1.1 Nature and scope of planning task are identified and confirmed.

1.2 Work health and safety (WHS) and environmental requirements associated with installation of domestic treatment plant disposal systems are adhered to throughout the work.

1.3 Work is organised and sequenced in conjunction with others involved in or affected by the work.

1.4 Tools and equipment required for planning, sizing and documenting layout of domestic treatment plant disposal systems, including personal protective equipment, are selected and checked for serviceability.

1.5 Work area in which the planning process is to be conducted is prepared.

2.1 Information and specifications for required work are obtained and confirmed, if necessary, by site inspection.

2.2 Regulations and Australian standards relevant to work are consulted and applied to all aspects of the work.

2.3 System requirements, including capacity, method of disposal, types of system, treatment system performance requirements and processes are determined from specifications.

2.4 Information on the assessment of land capability for on-site land application of effluent are obtained and confirmed

2.5 Information for a suitable location for the land application area and reserve area is obtained and confirmed

2.6 System is sized according to relevant Australian standards, regulatory authorities and workplace requirements

3.1 Disposal system is planned according to specifications, Environment Protection Authority (EPA) and regulatory authorities' requirements, relevant Australian standards and workplace procedures.

3.2 Disposal system is planned according to specifications, Environment Protection Authority (EPA) and regulatory authorities' requirements, relevant Australian standards and workplace procedures.

3.3 Sustainability principles and concepts are observed when preparing for and undertaking work process.

3.4 Materials required are specified and optimised according to relevant Australian standards from proposed design

3.5 Plans are recorded according to statutory and regulatory authorities' and workplace requirements.

4.1 Work area is restored according to workplace procedures.

4.2 Tools and equipment used in the process are refurbished and left according to workplace procedures.

4.3 Information is accessed and documentation, including work backup, is completed according to workplace requirements.

Learning Outcomes

Refer to elements.

Details of Learning Activities

Learning activities include in class workbook activities and researching industry practices and standards. This may include online learning activities. Students are expected to undertake design, size and documentation to relevant industry standards to include sustainability and WHS principles.

Teaching Schedule

Session Number Topic                                                   Learning Activities/Resources Elements/ Performance                                  criteria Assessments                           
1 Workbook domestic treatment plant disposal systems , principles & operation of activity 1 & 2 Workbook 1.1,1.2,1.3,1.4,1.5,2.1 ,2.2 ,2.4  



Workbook plan size & layout of systems activity 3 Work book - activity
3 Workbook Identify system requirements activity 4 Workbook 2.3,2.6  
4 Workbook Planning system layout , assessment 1 SWMS , List all tools required.   3.4,  
5 Workbook Planning system layout , activity 5 Workbook 1.4,1.2 ,3.5,3.2,3.1, Assessment 1 SWMS & Tools & equipment
6 Workbook restoring work area activity 6 , assessment 2 List sustainability procedures Workbook 3.3,4.1,4.2,4.3 Assessment 2 Sustainability procedures
7 Work on assessment 4 Hand in workbook activities 1-2-3-4-5-6 for assessment 3     Activities 1-2-3-4-5-6 for assessment 3
8 Work on assessment 4      
9 Work on assessment 4      
10 Hand in assessment 4     Submit assessment 4 Plan size document septic tank treatment system for a domestic dwelling

Learning Resources

Prescribed Texts

There are no prescribed textbooks. Class notes (workbook) will be provided to all students enrolled in this unit. 1 .Australian Standards AS3500  2 . AS/NZS 1546.1:2008
On-site domestic wastewater treatment units - Septic tanks
3 .AS/NZS 1546.3:2008
On-site domestic wastewater treatment units - Aerated wastewater treatment systems
4 .AS/NZS 1547:2012
On-site domestic wastewater management
 5 . Code of Practice
Onsite Wastewater Management
Publication number 891.3 February 2013


Plumbing Industry Technical Solutions

Other Resources

Intranet for research.

Drawing materials, calculator and relevant manual.

Overview of Assessment

Assessment may incorporate a variety of methods including written/oral activities and demonstration of practical skills to the relevant industry standards. Participants are advised that they are likely to be asked to personally demonstrate their assessment activities to their teacher/assessor. Feedback will be provided throughout the course.

Assessment Tasks

Students are required to complete three different types of assessment tasks

1. Assessment 1 -Planning permit, draining permit, relevant planning restrictions (10% weighing)
2. Assessment 2 – Written assignment on equipment required and SWMS (10% weighing)
3 Assessment 3 – Workbook activities 1-6 weighting 20 %
4 Assessment 4- Completed design and sizing of plan of Septic tank and completed design and sizing of plan of treatment plant (60% weighing)
To successfully complete this unit, a student needs to be deemed competent (CA grade) in all four assessment tasks.
Grading Criteria:
NYC - Not yet competent
CA - Competence Achieved
DNS - Did not submit assessment

Assessment Matrix

 Assessment   Task                            Element/PC                                                                                   Percentage  Weighting                
Assessment 1 Element 1.4 ,1.2 10%
Assessment 2 Element 3.3 ,4.1 10%
Assessment 3 Element 1.1,1.2,1.3,1.5,2.1,2.2,2.3,2.4,2.5 4.1,4.2,4.3 20%
Assessment 4 Element 2.2,2.3,2.4,2.5,2.6,3.1,3.2,3.3,3.4,3.5 60%

Other Information

Academic Misconduct

Students are reminded that cheating, whether by fabrication, falsification of data, or plagiarism, is an offence subject to University disciplinary procedures. Plagiarism in oral or written presentations is the presentation of the work, idea or creation of another person, without appropriate referencing, as though it is one’s own. Plagiarism is not acceptable.
The use of another person’s work or ideas must be acknowledged. Failure to do so may result in charges of academic misconduct which carry a range of penalties including cancellation of results and exclusion from your course.
Students are responsible for ensuring that their work is kept in a secure place. It is also a disciplinary offence for students to allow their work to be plagiarized by another student.
Students should be aware of their rights and responsibilities regarding the use of copyright material. It is strongly recommended that students refer to the Guidelines for Students at the RMIT University Homepage.

Course Overview: Access Course Overview