Assessor Resource

NWPNET014
Perform odour and infiltration investigations

Assessment tool

Version 1.0
Issue Date: March 2024


This unit describes the skills required to investigate and report on odour and infiltration problems in the wastewater collection and transfer systems. The ability to investigate and resolve wastewater system problems, operate technical equipment and prepare technical reports is essential to performance.

This unit applies to those working as field and operational staff with a specific responsibility for ensuring that odour and infiltration problems in wastewater collection and/or transfer systems are identified and remedied.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to, particularly those related to WHS.

Those undertaking this unit would work under indirect supervision, while performing routine tasks in a familiar context, ensuring minimum damage to the environment.

No licensing, legislative or certification requirements apply to unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Plan for leak detection

1.1 Determine work site boundaries and leak detection requirements from plans, specifications and instructions.

1.2 Select and check equipment.

1.3 Use site inspection and service search diagrams according to work site requirements.

2. Operate leak detection equipment and report work

2.1 Determine and mark work site boundaries from plans and service search diagrams.

2.2 Select, fit and use personal protective equipment.

2.3 Operate leak detection equipment.

2.4 Mark the location of leaks.

2.5 Expose leaks and arrange repair according to testing outcomes and organisational and statutory requirements.

2.6 Review, record and report work.

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

using safety equipment and personal protective equipment

interpreting plans, service diagrams, charts, specifications, policies, standard operating procedures and plumbing and drainage standards

monitoring inflows

operating computerised equipment

identifying control system faults

investigating and reporting on odour and infiltration problems in the wastewater collection and transfer systems

inspecting and selecting tools and equipment

scheduling inspections

collecting and recording wastewater samples

investigating and reporting odour sources

integrating processes

managing flow regulations, diversions and isolation of the site

identifying, addressing and reporting illegal inflows or discharges

reviewing and addressing investigation results

completing required documentation

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

system hydraulics

monitoring processes

system layout, processes, operation

environmental aspects of wastewater collection systems and infrastructure

infiltration and inflow sources

policies, standard operating procedures and legislation

relevant utilities and service bodies

communication systems

environment, landscape and ground structure of work area

risk factors and potential hazards involved in wastewater collection systems equipment operation, capacity and limitations

effects of weather and conditions on operation of collection infrastructure

pipes and fittings

pumping and valving systems

gravity and control systems

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Plan for leak detection

1.1 Determine work site boundaries and leak detection requirements from plans, specifications and instructions.

1.2 Select and check equipment.

1.3 Use site inspection and service search diagrams according to work site requirements.

2. Operate leak detection equipment and report work

2.1 Determine and mark work site boundaries from plans and service search diagrams.

2.2 Select, fit and use personal protective equipment.

2.3 Operate leak detection equipment.

2.4 Mark the location of leaks.

2.5 Expose leaks and arrange repair according to testing outcomes and organisational and statutory requirements.

2.6 Review, record and report work.

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

using safety equipment and personal protective equipment

interpreting plans, service diagrams, charts, specifications, policies, standard operating procedures and plumbing and drainage standards

monitoring inflows

operating computerised equipment

identifying control system faults

investigating and reporting on odour and infiltration problems in the wastewater collection and transfer systems

inspecting and selecting tools and equipment

scheduling inspections

collecting and recording wastewater samples

investigating and reporting odour sources

integrating processes

managing flow regulations, diversions and isolation of the site

identifying, addressing and reporting illegal inflows or discharges

reviewing and addressing investigation results

completing required documentation

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

system hydraulics

monitoring processes

system layout, processes, operation

environmental aspects of wastewater collection systems and infrastructure

infiltration and inflow sources

policies, standard operating procedures and legislation

relevant utilities and service bodies

communication systems

environment, landscape and ground structure of work area

risk factors and potential hazards involved in wastewater collection systems equipment operation, capacity and limitations

effects of weather and conditions on operation of collection infrastructure

pipes and fittings

pumping and valving systems

gravity and control systems

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Determine work site boundaries and leak detection requirements from plans, specifications and instructions. 
Select and check equipment. 
Use site inspection and service search diagrams according to work site requirements. 
Determine and mark work site boundaries from plans and service search diagrams. 
Select, fit and use personal protective equipment. 
Operate leak detection equipment. 
Mark the location of leaks. 
Expose leaks and arrange repair according to testing outcomes and organisational and statutory requirements. 
Review, record and report work. 
Determine work site boundaries and leak detection requirements from plans, specifications and instructions. 
Select and check equipment. 
Use site inspection and service search diagrams according to work site requirements. 
Determine and mark work site boundaries from plans and service search diagrams. 
Select, fit and use personal protective equipment. 
Operate leak detection equipment. 
Mark the location of leaks. 
Expose leaks and arrange repair according to testing outcomes and organisational and statutory requirements. 
Review, record and report work. 

Forms

Assessment Cover Sheet

NWPNET014 - Perform odour and infiltration investigations
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

NWPNET014 - Perform odour and infiltration investigations

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: