Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

NWP338B Mapping and Delivery Guide
Perform infiltration and odour investigations

Version 1.0
Issue Date: March 2024


Qualification -
Unit of Competency NWP338B - Perform infiltration and odour investigations
Description This unit of competency describes the outcomes 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 are essential to performance.
Employability Skills This unit of competency contains employability skills.
Learning Outcomes and Application This unit supports the attainment of skills and knowledge required for 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 in a safe and timely manner.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Not applicable.
Competency Field Collection and distribution
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities
Slides
PPT
Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Plan and prepare for investigation.
  • Inspect and select tools and equipment according to organisational and statutory requirements.
  • Schedule regular inspections according to organisational procedures.
  • Correctly select, fit and use required safety equipment, including personal protective equipment.
       
Element: Investigate and correct odour problems.
  • Collect and record wastewater samples according to organisational procedures.
  • Investigate and report odour sources in the wastewater collection and transfer system according to organisational requirements.
  • Integrate processes to improve system performance and correct odour problems according to organisational requirements.
       
Element: Investigate and address infiltration problems.
  • Manage flow regulations and determine and undertake diversions and/or isolation of the site to facilitate investigation processes.
  • Identify address and report illegal inflows or discharges of the wastewater collection and transfer flows according to organisational and statutory requirements.
       
Element: Compile reports and records.
  • Review and action investigation results according to organisational and statutory requirements.
  • Compile reports from wastewater collection and transfer flow data to meet organisational and statutory requirements.
       


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.

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for the Training Package.

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

The candidate should demonstrate the ability to investigate, and report on odour and infiltration problems in the wastewater collection and transfer systems including:

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.

Context of and specific resources for assessment

Access to the workplace and resources including:

documentation that should normally be available in a water industry organisation

relevant codes, standards, and government regulations.

Where applicable, physical resources should include equipment modified for people with disabilities.

Access must be provided to appropriate learning and/or assessment support when required.

Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed.

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

a decision of competence only taken at the point when the assessor has complete confidence in the person's competence over time and in various contexts

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

where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time

assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit.

In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the operator, any cultural issues that may affect responses to the questions, and reflecting the requirements of the competency and the work being performed.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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.

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

Required skills:

identify and investigate the source of infiltration and inflows

investigate illegal inflows and discharges

investigate odour problems

identify and correct operational problems

produce reports, logs, etc.

use safety equipment and personal protective equipment

interpret plans, service diagrams, charts and specifications

interpret policies, standard operating procedures and plumbing and drainage standards

communicate with employees and customers

manage system operations and processes

use communication equipment

give and receive instructions

monitor inflows

operate computerised equipment

identify control system faults.

Required knowledge:

system hydraulics

monitoring processes

system layout

system processes

systems operation

isolation procedures

environmental aspects of wastewater collection systems and infrastructure

infiltration and inflow sources

illegal inflows and discharges

safety procedures

lock out procedures for mechanical and electrical installations

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 systems

control systems.

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. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.

Tools and equipment may include:

electronic monitoring and metering systems

gas detection equipment

sampling and testing equipment

infiltration dye testing equipment

smoke testing equipment

closed circuit television

manual chart recording systems

on- and off-road vehicles

communication equipment

marine craft

breathing apparatus

atmosphere monitoring equipment

rescue equipment

appropriate personal protective equipment

computerised equipment.

Organisational and statutory requirements may include:

by-laws and organisational policies

standard operating procedures

environment protection

equal employment opportunity

occupational health and safety

plumbing and drainage standards

Water Acts

electrical and mechanical procedures

hazardous substances and dangerous goods

World Health Organisation and National Health and Medical Research Council (NHMRC) guidelines.

Inspections may require:

investigation of:

trade waste admission

on-site pre-treatment systems

air scrubbers

grease traps

separators and arresters

illegal connections

infiltration sources

interaction and communication with other employees, plumbing and drainage consultants, other authorities and the general public

visual and electronic inspections

condition monitoring of assets

implementation of reporting procedures that may also include:

procedures for the implementation of by-laws

organisational policies

standard operating procedures

statutory requirements.

Flow regulations may require:

the adjustment of:

pumping systems

valving systems

electronic and manual control systems

gravity systems.

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
Inspect and select tools and equipment according to organisational and statutory requirements. 
Schedule regular inspections according to organisational procedures. 
Correctly select, fit and use required safety equipment, including personal protective equipment. 
Collect and record wastewater samples according to organisational procedures. 
Investigate and report odour sources in the wastewater collection and transfer system according to organisational requirements. 
Integrate processes to improve system performance and correct odour problems according to organisational requirements. 
Manage flow regulations and determine and undertake diversions and/or isolation of the site to facilitate investigation processes. 
Identify address and report illegal inflows or discharges of the wastewater collection and transfer flows according to organisational and statutory requirements. 
Review and action investigation results according to organisational and statutory requirements. 
Compile reports from wastewater collection and transfer flow data to meet organisational and statutory requirements. 

Forms

Assessment Cover Sheet

NWP338B - Perform infiltration and odour 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

NWP338B - Perform infiltration and odour 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: